KR100701739B1 - Apparatus fo using a moving information - Google Patents

Abstract

 The present invention provides a single chip outputting the position, angular velocity and acceleration information of a moving target.

 An apparatus using the movement information of the present invention is a system that utilizes position, angular velocity and acceleration information of a specific object, comprising: an integrated positioning chip for measuring and processing the position, angular velocity and acceleration of the specific object on one chip; Memory means for storing at least one output information of the location collection and an operation program; And by means of the interface means for connecting the positioning chip and the system; by implementing the positioning by one chip, there is an excellent effect compared to the conventional in terms of price and operation.

Terminal, GPS, Integrated Chip

Description

Apparatus fo using a moving information}

1 is a block diagram of a general navigation terminal.

 2A is a diagram showing that telematics as an information terminal is configured in a vehicle

 2b shows the telematics separated from the vehicle

 Figure 3a is a block diagram showing that the GPS, Gyro and Odometer for vehicle speed measurement are separately configured and connected to the telematics information terminal

 Figure 3b is a block diagram showing that the GPS, Gyro (Gyro) and accelerometer are configured separately and connected to the telematics information terminal

 Figure 4 is a block diagram showing the GPS, Gyro and the accelerometer as a single chip, receiving the Speed Pulse from the Odometer the chip receives all the processing related to the positioning and then transmits the positioning data to the telematics terminal for output

Figure 5 is an embodiment block diagram implementing the integrated chip according to the present invention

The present invention relates to a system that utilizes the position, angular velocity and acceleration information of a moving target, and in particular, GPS, Gyro, and accelerometers for outputting position information in telematics are composed of one integrated chip to output movement information. Relates to a device.

Hereinafter, the related art and related inventions will be described.

In general, a navigation system terminal displays a current position of a moving object calculated using information received from a global positioning system (GPS) on a map displayed on a display screen. .

The navigation terminal (or GPS positioning device) is currently mounted on various kinds of moving objects such as ships, aircrafts, automobiles, etc., and is widely used to check the current position and moving speed of moving objects or determine a moving path.

Such a navigation terminal provides the driver with various kinds of information necessary for driving, such as displaying the moving direction of the moving object, the distance to the destination, the current moving speed of the moving object, the route set before the driver and the optimum route to the destination. do.

In particular, the navigation terminal receives a radio wave indicating latitude, longitude, altitude, etc. from a plurality of satellites belonging to the GPS to calculate the current position of the moving object, and then visually displays the map information including the current position to the driver or is auditory. To tell.

The navigation terminal has recently been added with various functions. In particular, the navigation terminal has a radio function, a TV reception function, a telephone function, a memory function, and the like, and a key and a menu for searching for various function items are provided.

1 is a diagram illustrating a general navigation terminal in which each component is separately configured.

Referring to FIG. 1, the GPS receiver 102 receives predetermined location data transmitted by a plurality of GPS satellites 100 through an antenna, which is a receiving means, to receive a navigation service, and transmits the received location data to the controller 110.

In addition, the sensor unit 104 includes a velocity sensor / gyro sensor, and the like, and detects a rotation angle and a speed of the vehicle, and transmits the detected velocity to the controller 110.

The key input unit 106 is a user interface that receives various key signals from a user or sets a driving route.

In addition, the key input unit 106 includes various function keys, a touch screen, a jog dial type search means, and the like, and is provided for menu search and selection.

The map data storage unit 108 stores map data and other additional information data. The map data storage unit 108 is generally implemented as a CD-ROM (Compack Disk-Read Only Memory).

The controller 110 controls the overall operation of the navigation system. To this end, the controller 110 determines the current position of the moving object using the received signal of the GPS receiver 102, and matches the determined current position of the moving object with the map data stored in the map data storage 108.

When the user inputs a starting point and a destination through the key input unit 106 or the like, the controller 110 refers to the map data stored in the map data storage unit 108 to determine the driving route from the current position of the moving object to the destination. The searched driving route is displayed on the display unit 114 by an electronic map through the display driver 112.

In addition, the control unit is configured to receive a key signal input from a function key or a jog dial input through the key input unit 106 to be displayed on the display unit 113. The display unit 114 is a display means having an On Screen Display (OSD) function, for example, a liquid crystal display device.

In addition, the memory 111 stores a program and various data for operating the system normally.

In addition, the driving path of the moving object is guided while outputting the guide voice to the speaker 118 through the voice guide unit 116.

The navigation system as described above receives GPS satellite signals from a plurality of GPS satellites 100 disposed on the earth, and tracks the driving trajectory by grasping the current position and driving direction of the vehicle. And it is a service that provides the vehicle user with the shortest distance route to reach the destination through the driving route from the starting point.

Such a navigation system additionally includes a TV reception function, a radio function, a telephone function, and an information storage function, so that menus should be provided for convenient selection of various functions. To this end, the menu form implemented on the screen of the display unit 114 is preferably implemented in a form that matches the key of the key input unit 106.

To this end, the user inputs the jog dial type menu searching means on the key input unit 106, and configures the jog dial type menu indicating means on the screen to arrange the menus along the dial radius of the indicating means. Intuitively rotating the menu retrieval means makes it possible to retrieve menus within a radius indicated by the cursor of the menu support means.

In addition, the explanation related to GPS is explained in detail.

GPS is a device that receives a specific signal from GPS satellites, analyzes the satellite signals, and displays the position (latitude value, longitude value) for the GPS signal, and is often called a GPS module (GPS receiver).

Plug the GPS antenna into the GPS module, power on (5V-12V) and connect to a computer to output the current location on the computer screen.

In the GPS module, the CPU, ROM, RAM, etc. are designed as if the computer is reduced.

In the above, the CPU calculates the location information. In the ROM, a program for calculating the location information is embedded, and the RAM contains simple information such as the most recent location information.

If you turn off the GPS for a long time and then turn it on again, the position will be displayed after a long time. This is like a computer booting process. It performs a POST of the GPS receiver, runs programs in the ROM, and then signals. After analyzing, the location information is recorded in RAM and the location is finally output.

There is a wide variety of data that can be received from GPS signals.

For example, as data for representation on a two-dimensional map, latitude value, longitude value, speed, direction of movement, and the like.

In addition, since GPS used in aircraft is a three-dimensional space, it accurately represents altitude.

Devices such as navigation and unmanned choppers display the current location on the map with the location information output from the GPS module (navigation), or pre-populated unmanned chopper locations (latitude, longitude values, etc.) and the current actual GPS. Compared with the latitude and longitude values received by the module, it will output a message, such as reducing the risk or speed.

Radio waves from GPS satellites have a high frequency band, which leads to high linearity and low transmittance, so the GPS antenna must always be able to see the sky.

2A is a diagram showing that telematics as an information terminal is configured in a vehicle.

As shown in the figure, a telematics 201 is configured in a vehicle to allow an effective time for the driver and passengers.

2B shows the telematics 201 separated from the vehicle.

FIG. 3A is a block diagram showing that the GPS 302, the Gyro 303, and the Odometer 304 for vehicle speed measurement are separately configured and connected to the telematics 301 which is an information terminal.

In the above configuration, the GPS is basically used for the positioning of the MEMATICS terminal, and the position of the vehicle is measured in the MAP by measuring the position by using the speed pulse signal that comes from the rotation of the Gyro and the wheel of the vehicle in the place where the GPS is not received. Indicated.

FIG. 3B is a block diagram showing that the GPS 302 and the Gyro 303 and the accelerometer 305 are separately configured and connected to the telematics 301 which is an information terminal.

In the above configuration, the GPS was used in the area where the GPS was received, and the positioning was performed using the Gyro and the accelerometer where the GPS was not received.

However, the conventional positioning device using the mobile information, such as GPS module, Gyro module and acceleration module were all purchased separately used. Therefore, there were various difficulties and inconveniences for the user in terms of price and operation of the positioning part.

The present invention proposes a new integrated chip that can obtain the position, angular velocity and acceleration information of a specific target from one chip.

The present invention proposes to output information of GPS, MEMS Gyro scope, and MEMS accelerometer from one integrated chip and transmit the information to telematics through interface means.

An apparatus using the movement information of the present invention is a system that utilizes position, angular velocity and acceleration information of a specific object, comprising: an integrated positioning chip for measuring and processing the position, angular velocity and acceleration of the specific object on one chip; Memory means for storing at least one output information of the location collection and an operation program; And interface means for connecting the positioning chip and the system.

In one embodiment of the present invention, the integrated positioning chip, the position measuring means for indicating the position information of the target through the receiving means; Means for measuring an angle value corresponding to the object when the object rotates; Speed measuring means for measuring a speed change value of the object; And a control unit connected to the respective means to process information.

In one embodiment of the present invention, the integrated positioning chip is a CPU, GPS L1 / L2C RF IC, GPS L1 / L2C Baseband chip, MEMS Gyroscope chip, MEMS acceleration chip and the signal output from the MEMS gyroscope and accelerometer chip A / D converter for delivering to CPU.

In one embodiment of the invention, the means for measuring the corresponding angular value when the object is rotating is a MEMS gyroscope.

In one embodiment of the invention, the means for measuring the speed change value of the moving object is MEMS acceleration.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of an apparatus using the movement information of the present invention will be described in detail with reference to the accompanying drawings.

4 shows the GPS, Gyro and accelerometer as one chip 402a, receives the Speed Pulse from the Odometer 402b and performs all processing related to the positioning, and then transfers the positioning data to the telematics terminal 401. Is a block diagram showing output to

5 is an embodiment block diagram of an integrated chip according to the present invention.

As shown in the figure, the integrated positioning terminal 500 is composed of the integrated positioning chip 501 of the present invention, the memory 512 and 513 and the peripheral components 514 and 515 as peripheral components.

Integrated positioning chip 501 is made in the form of SIP (System in a Package) or SoP (System on a Package).

SIP manufactures chips that cannot be manufactured in one process and places them on one PCB (Printed Circuit Board), connects the signal lines between the chips, and packs them to look like one chip.

Today's chips are made a lot with these SIPs.

The integrated positioning chip 501 is largely composed of a CPU 509, a GPS L1 / L2C RF IC 504, a GPS L1 / L2C baseband chip 505, a MEMS Gyroscope chip 506, and a MEMS acceleration chip 507. .

In addition, the A / D Converter (508) is required to deliver signals from the MEMS (Micro Electro Mechanical Systems) gyroscope and accelerometer chip to the CPU.

In the above description, MEMS (Micro Electro Mechanical Systems) refers to a micro electromechanical system or a micro electromechanical system, which is expressed in Korean. Is a collective term for building a system that combines new functions.

In order to receive the GPS signal, the GPS antenna 502 should be connected to the integrated positioning terminal 500, and the signal received from the GPS antenna 502 passes only the necessary signal band through the RF filter 503.

The RF filter passes both the GPS L1 frequency (1575.42MHz) and L2 (1227.60MHz) frequencies.

The GPS L1 / L2C baseband chip 504 receives and processes a signal output from the GPS L1 / L2C RF IC 504.

GPS signals are analyzed in the GPS L1 / L2C baseband chip, and the necessary signals (time, speed, latitude, longitude, altitude, etc.) are extracted and transferred to the CPU 509.

In addition, the MEMS gyroscope 506 is for angular velocity measurement, and transmits the corresponding angle value to the CPU 509 when the vehicle rotates.

In addition, the MEMS accelerometer 507 is for speed measurement and transmits a corresponding value to the CPU when the speed of the vehicle is changed.

The MEMS gyroscope and accelerometer can output analog and digital outputs. Therefore, in case of outputting analog output, it must be converted into digital signal through A / D converter 508 and transferred to CPU.

On the other hand, the Odometer 510 outputs a corresponding pulse signal to the CPU when the vehicle wheel rotates, and the CPU calculates a moving distance of the vehicle using the pulse signal. Odometer signals are received from four wheels.

The direction 511 signal indicates whether the vehicle is moving forward or reversing. The direction 511 signal is used when the CPU receives the navigating signal.

The CPU indicates the vehicle position based on the GPS signal. However, the GPS signal may or may not be well received in high-rise buildings or in shaded areas such as forests. In this case, the vehicle's position is calculated and displayed using signals such as accelerometers, gyroscopes, odometers, etc.

The program and positioning algorithm necessary for the positioning terminal 500 to operate in the flash memory 513 are mounted. In actual operation, the program is moved to the RAM 512 in order to increase the execution speed.

The USB interface 515 is used to modify or change the program of the positioning terminal 100, and may use Serial, but is used to speed up.

As described above, if the GPS signal is not received while the position is displayed, the method of calculating the position of the vehicle using a gyroscope, an accelerometer, an odometer signal, etc. is referred to as a dead reconing (DR) method.

The DR method is a method of measuring the relative position, the method of measuring the position in missiles, planes, etc. requires a precise algorithm. These algorithms work onboard the CPU.

      The CPU always calculates its location data based on the information output from each of the above configurations and transmits the location data to the matrices terminal 520.

In this case, RS232 Tranceiver 514 is used to use serial communication.

The matrices terminal 510 receives positioning data (time, speed, latitude, longitude, altitude, etc.) received from the positioning chip 501 and is used for navigation or for functions necessary for other meticulous terminals.

The RS232 Tranceiver 514 may be used for communication with a MEMATICS terminal, but may also be used for communication with a PC 521 for developing or debugging a board.

As described above, the present invention is to lower the price by integrating and operating in the conventional chip or module in one chip and to operate all the functions related to positioning on the chip.

By the way, GPS-related parts can be divided into RF and baseband. The processes are different, so they are not made into one chip but usually divided into chips.

That is, the RF IC is manufactured by the BiCOM process without using the general CMOS process because the RF operation, and the GPS baseband is manufactured by the CMOS process because the general digital operation.

 Gyro and the accelerometer also use a process called MEMS, which uses a different process than GPS chips.

The chips made by the different processes are made into one chip, which is called SoP.

In other words, SoC (System On Chip) makes all processes into one, whereas SoP (System On Package) cannot use the same process, so the chips made separately are packaged into one.

Therefore, the present invention is to collect the various chips related to the positioning to make a package, and to design the interface to be interoperable in it, and to operate the algorithm.

 Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents.

It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Therefore, the above description is not limited to the scope of the present invention by the limitation of the claims.

As described above, the apparatus using the movement information according to the present invention may output information of GPS, MEMS Gyro scope, and MEMS accelerometer on one integrated chip and display the information on the telematics through the interface means.

That is, by implementing the positioning with one chip, there is an excellent effect compared to the conventional in terms of price and operation.

Claims (5)

 In the system utilizing the position, angular velocity and acceleration information of a specific target,  An integrated positioning chip for measuring and processing the position, angular velocity, and acceleration of the specific object in one chip; Memory means for storing at least one output information and an operation program of the positioning chip; And Interface means for connecting the positioning chip and the system; wherein the integrated positioning chip includes a control unit for controlling the system, a means for outputting a predetermined frequency, a means for transmitting an angle value when the moving object is rotated, and a speed. And an A / D converter connected to a measuring means, the angle value transmitting means, and the speed measuring means . The integrated positioning chip according to claim 1, further comprising: position measuring means for indicating position information of the object through a receiving means; Means for measuring an angle value corresponding to the object when the object rotates; Speed measuring means for measuring a speed change value of the object; And And a control unit connected to each of the means to process the information, and comprising one chip. According to claim 1 or 2, wherein the integrated positioning chip is a CPU, GPS L1 / L2C RF IC and GPS L1 / L2C baseband chip that outputs a predetermined frequency, MEMS Gyroscope chip to transmit the angle value during rotation, measuring the speed And a MEMS acceleration chip and an A / D converter for transmitting signals output from the MEMS gyroscope and the accelerometer chip to the CPU. The apparatus of claim 2, wherein the means for measuring an angle value corresponding to the rotation of the object is a MEMS gyroscope.   The apparatus according to claim 2, wherein the means for measuring the speed change value of the movement target is MEMS acceleration.

Images