KR100465782B1 - Apparatus for alarming dangerous driving situations using GPS and Radar detector - Google Patents

Abstract

The present invention provides a vehicle driving warning device in which GPS and a radar detector are combined to induce a driver's safe driving by using information received from a GPS and a signal detection function of a radar detector. The present invention includes a radar detector 100 for receiving a radio wave and a laser signal to detect the band and the intensity of the radio wave source; A GPS receiver 200 connected to the radar detector 100 for determining a current position by receiving a signal from a GPS satellite and comparing the stored position information data with a GPS receiver; It comprises a radar detector 100 and the alarm unit 300 for alarming the signals and information generated by the GPS receiver 200, the driver's safe operation using the signal detection function of the information and radar detector received from the GPS If you find a dangerous situation, you can save it so that you can be alerted later, and update location data using a telephone line without the need for a separate device.

Description

Vehicle warning system with GPS and radar detectors {Apparatus for alarming dangerous driving situations using GPS and Radar detector}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle driving warning device in which GPS and a radar detector are combined. In particular, the present invention induces driver's safe driving by using information received from GPS and a signal detection function of a radar detector. Vehicles that combine GPS and radar detectors to store location information when a dangerous situation is detected and be alerted later, as well as update location data using a telephone line without the need for a separate device. It relates to a driving warning device.

In developed countries, different microwaves and lasers are used to provide different types of speed meters and proactive safety alarm transmitters to alert you to various dangerous situations on the road.

That is, in order to prevent the speed of the vehicle, the speed gun for detecting the speed of the vehicle includes Ka-Band, X-Band, Ku-Band, K-Band and Laser. The safety alert system for informing the information of the road transmits information such as railroad crossings and emergency vehicles during construction, and the safety warning system codes and transmits 64 types of information such as fog areas, construction sites, school areas, and speed reductions. Doing.

In order to use the information transmitted from the safety alert transmitter, a radar detector is developed that receives a signal transmitted from the safety alert transmitter, classifies and processes the signal according to each signal, and alerts the user, especially the driver. Has been used.

However, in the case of the loop type camera which measures the speed of the vehicle without using radio waves and controls the speed, the radar detector cannot detect it, which limits the operation of the radar detector to provide the driver with all the information while driving.

In addition, in order to apply the safety alert system or the safety warning system as described above, there is a difficulty in installing a transmitter capable of transmitting information at a corresponding position.

Therefore, there has been a demand for a method for compensating the radar detector used for the safety alert by detecting the radio wave, and a method using the GPS function has been proposed.

GPS is an abbreviation of Global Positioning System, which uses satellites floating in orbit around the globe to provide accurate location and time regardless of the weather. It is also known as satellite positioning system.

The GPS receives the navigation messages from the satellites and calculates its position at the receiver, which means that four or more satellites are located in the clock at all times on Earth, so you can choose four of these satellites. Select to receive time signals from them and measure each distance.

Since the positions of the four satellites are known, not only the user's latitude, longitude, altitude, three-dimensional position and time deviation of the clock can be known from this measurement, but also the user's speed and movement using these information. It is also possible to calculate additional information such as directions.

GPS has been applied to many parts, and in the mobile communication field such as a mobile phone, it shows its location along with a map, and provides information such as various traffic, shopping, and restaurants nearby, and also saves lives. It is used in emergency situations, and it is also used in car navigation systems that allow users to find the place they want to go through the navigator attached to the car. In addition, it is widely applied to military and aviation control.

The present invention is to improve the above-mentioned driving warning device, by using the information received from the GPS and the signal detection function of the radar detector to induce the driver's safe driving, and if it finds a dangerous situation in addition to storing it later In addition to being able to be alerted to this situation, it is intended to provide a vehicle driving warning device combined with a GPS and a radar detector that can update location information data using a telephone line without the need for a separate device.

The present invention includes a radar detector for receiving a radio wave and a laser signal to detect the band and the intensity of the radio wave source; A GPS receiver connected to the radar detector and configured to receive a signal from a GPS satellite to determine a current position and compare the stored position information data to determine an alarm; It is achieved by including an alarm unit for warning the signals and information generated by the radar detector and the GPS receiver.

1 is a block diagram showing an embodiment of the present invention;

2 is a diagram for downloading data through a modem of an embodiment of the present invention.

Schematic showing the route configuration,

3 is a block diagram showing an embodiment of a modem configuration of the present invention;

4 is an operation flowchart of a radar detector of the present invention;

5 is a flowchart showing signal processing of a GPS receiver of the present invention;

6 is a data update flowchart of a GPS receiver of the present invention.

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

100 radar detector 110 horn antenna

120: signal processor 130: laser module

140: slave processor 200: GPS receiver

210: GPS antenna 220: GPS module

230: memory 240: master processor

250: lookup table 260: data transceiver (TCP / IP modem)

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating an embodiment of the present invention, the present invention includes a radar detector 100 for receiving a radio wave and a laser signal to detect the band and the intensity of the radio wave source; A GPS receiver 200 connected to the radar detector 100 for determining a current position by receiving a signal from a GPS satellite and comparing the stored position information data with a GPS receiver; The radar detector 100 and the GPS receiver 200 is characterized in that it comprises an alarm unit 300 for alerting the signals and information generated.

In more detail, the radar detector 100 includes a horn antenna 110, a signal processor 120 for detecting a signal received by the horn antenna 110, a laser module 130 for receiving a laser signal, and In addition, the signal processor 120 and the slave processor 140 for controlling the detection of the signal of the laser module 130 is configured in detail, to determine the speed of the vehicle and all the signals for inducing safe driving of the vehicle Detect radar signals.

In addition, the GPS receiver 200 includes a GPS antenna 210 for receiving a signal from a GPS satellite, a GPS module 220 for determining a current position from the received signal and calculating other additional information, and the slave processor. It is configured to include a master processor 240 that is connected to the 140 and determines whether the current location and location information data within a predetermined range compared to the location information data stored in the memory 230.

In some cases, a lookup table 250 for quick access to the memory and a function key 270 for the user to control the operation of the radar detector 100 and the GPS receiver 200. May be further configured.

The warning unit 300 is configured to be connected to the master processor 240, and receives the received signals of the radar detector 100 and the GPS receiver 200, the LCD 310 and / or voice IC 320 And a warning device such as a speaker 330 to visually and / or audibly alert the user.

On the other hand, the master processor 240 is connected to the slave processor 140 in a parallel data line, when the signal is detected by the radar detector 100, using the interrupt, the process of the GPS receiver 200 is temporarily suspended In order to stop the signal, the radar detector 100 transmits the detected signal to the warning unit 300 and returns.

In addition, the GPS receiver 200 further comprises a data transceiver 260 for updating the location information data by connecting to a server operated by a distributor or service provider (see FIG. 2). It is possible to download new data that is not stored in the existing memory 230 from the.

In general, since there is a limitation in connecting to the Internet in a general situation, it is preferable that the data transceiver 260 uses a modem to connect to the server by connecting to a PSTN network (ordinary telephone line network).

As described above, in order to access a server using a modem and a PSTN network, as illustrated in FIG. 2, a plurality of local switches forming a PSTN network and an ISP (Internet Service Provider) for connecting the Internet and the PSTN network are provided. in need.

The modem uses a TCP / IP modem 260 including a TCP / IP stack, and includes a Point to Point Protocol (PPP) dial up function, thereby eliminating a separate Internet connection means. By only connecting, the server is connected to the server so that data can be transmitted and received.

In addition, when the user finds a new dangerous area or danger element that is not in the location information data while driving or other use, the user uses the input device to store it in the memory and later uses the stored data to alert the user. It is desirable to be able to receive.

As described above, the data stored by the user using the input device may be uploaded to the server using the data transceiver 260 so that other users may use the data.

3 is a block diagram showing an embodiment of the configuration of the modem of the present invention. When the configuration of the TCP / IP modem 260 is described for each communication layer, the modem 261, which is hardware in the lowest layer, will be described. The upper layer is configured with FTP (262: file transfer protocol) and TCP socket 263 for data (file) transfer.

In addition, the PPP (264: point to point protocol) serves to connect the modem 261 with a transmission control protocol (TCP) and IP (266: internet protocol), which are communication protocols in the Internet.

The radar detector 100 detects all signals for inducing safe driving of the vehicle and radar signals for determining the speed of the vehicle, applies circuits and algorithms for preventing malfunction, and sweeps a wide frequency range. It is preferable to use a scanning method using a resonant tube capable of sweeping, using a plurality of local oscillators oscillating at independent frequencies, and using a radar detector 100 integrating a laser receiving module with a horn antenna. The detection result is transmitted to the master processor 240 using parallel lines.

More specifically, the radar detector 100 of the present invention preferably uses a broadband radar detector and a control method of Korean Patent No. 299425 (registered June 8, 2001) filed and registered by the applicant of the present invention. The signal processor 120 of the radar detector 100 configures a first local oscillator in an oscillator cavity for oscillating a wide band frequency range on one side of the horn antenna 110. A first amplifier for mixing and amplifying the oscillation signals of the first local oscillator in a first mixing unit, a second local oscillator for continuously oscillating three frequencies irrespective of the presence or absence of a received signal; And a second amplifier for mixing and amplifying the oscillation signal of the second local oscillator in a second mixing unit. In addition, the filter unit for selecting and passing the signal amplified in the second amplifier, And a demodulator for detecting a signal which has passed through the unit, and is configured detail a detection signal to the AD conversion for conversion to a digital signal.

4 is a flowchart illustrating the operation of the radar detector of the present invention, FIG. 5 is a flowchart illustrating signal processing of the GPS receiver of the present invention, and FIG. 6 is a flowchart of data update of the GPS receiver of the present invention. Referring to the operation and effects of the present invention with reference to.

First, referring to FIG. 4, the operation of the radar detection unit 100 will be described. When the slave processor 140 starts to operate, it is repeatedly searched whether there is a signal input to the horn antenna 110 (R1). When the signal is input, the band of the input signal and the strength of the signal are determined and transferred to the master processor 240 (R2).

Then, the master processor 240 temporarily interrupts the GPS-related process currently in progress by using an interrupt and transfers the information input through the data line to the LCD 310 and the voice IC 320, and visually and audibly to the user. Alert by delivering information (R3).

Thereafter, after a predetermined time elapses, the master processor 240 releases the interrupt and returns to the originally executed process (R4).

Hereinafter, the signal processing operation of the GPS receiver 200 will be described with reference to FIG. 5.

The GPS receiver 200 operates as follows. First, a satellite signal is received by the GPS antenna 210 and transmitted to the GPS module 220 (G1). The GPS module 220 estimates the current position using four or more satellite signals and converts the coordinates of latitude and longitude into data such as speed and direction.

The coordinates determined in the above process are transmitted to the master processor 240 (G2), and the master processor 240 compares data based on the current position with reference to a lookup table 250. (G3).

First, when the corresponding data exists, the current position coordinates and the position coordinates in the memory 230 are compared (G4). In the process, if the distance between the two coordinates is determined to be within a certain range, Information such as a warning content and a speed limit will be informed to the user using the alarm unit 300 (G5).

In this case, when the predetermined range is increased, the user can be notified of the warning content in advance. Thus, the warning content can be alerted from 100m ahead and 50m ahead, respectively.

For example, assuming that there is a danger zone 50m away from the current position (assuming a 50m setting interval for data comparison) and that data is stored in the memory, the GPS receiver 200 when the vehicle moves in that direction. Estimates the current position and compares it with the data in memory 230.

As a result of the comparison process, it finds the data 50m away from the current position and checks the warning content included in this data. And based on the warning content to alert the user that the danger zone 50m ahead using the alarm unit 300.

In this case, the data used may be provided by a vendor or a service provider (hereinafter, referred to as a data provider). In addition, when the user finds a new dangerous area, a camera, a school area, a construction area, etc., which are not included in the data in the memory 230 while driving, the user may select a 'save button (saving area saving button, school area storage button, construction area' Save the current position in the memory 230 to be used in the future.

The data stored in the memory 230 may include different alarm contents according to each button along with position information and direction information at the time the button is pressed. Therefore, the user can be alerted through the stored data when he / she later passes to the saved location.

Initially, the data including the location and the information are stored in the memory 230. However, as time goes by, changes in the location of existing data such as addition or deletion of data requiring safety warnings (during construction, schools, etc.) occur, which necessitates the need to update existing data.

In addition, the data stored in the memory 230 by the user using the 'save button' may be delivered to the data provider for sharing by multiple users.

The uploaded data is added when data is created from the data provider, and can be supplied to several users again. Therefore, the data in the memory 230 needs updating within a certain time and uses a telephone line (PSTN network) to perform this.

The reason why the modem is used for transmitting and receiving the data is for the user who cannot easily obtain the Internet-enabled line and the user who cannot use the computer easily. On the other hand, telephone lines are available in all regions and most people can find telephone line ports, making them suitable for use.

As described above, when the data is to be updated using the telephone line, as shown in FIG. 6, when the user sets the modem mode (U1) and connects the modem line to the port to which the telephone line is connected (U2), The master processor 240 in charge of the GPS receiver 200 connects to the ISP and performs a connection with the server (U3).

In this case, as described above, it can be seen that the TCP / IP modem 260 is connected to a telephone line and the server is connected to the Internet. In order to connect the two networks, an ISP is required between the telephone network and the Internet.

After that, a user authentication process is performed (U4), and it is more convenient to have a password or ID storage function used for this purpose.

As described above, after the user authentication process, the data is downloaded from the data provider according to the last data update date, and then the data stored by the user is uploaded (U5). The order of these downloads and uploads can be interchanged.

As described above, when the data update is completed, the original function is performed after removing the telephone line connected thereto and ending the communication state (U6).

As described above, the present invention induces the driver to drive safely by using the GPS position information and the signal detection function of the radar detector, and when it detects an additional dangerous situation, it can only be warned later in this situation. Rather, it is an invention having the effect of updating the location information data without the need for a separate device using a telephone line.

Claims (8)

delete A radar detector comprising a horn antenna, a signal processor for detecting a signal received by the horn antenna, a laser module for receiving a laser signal, and a slave processor for controlling detection of signals of the signal processor and the laser module; A GPS antenna for receiving a signal from a GPS satellite, a GPS module for determining a current position from the received signal and calculating other additional information, and a location information data connected to the slave processor and stored in a memory. A GPS receiver including a master processor for determining whether a current location and location information data fall within a predetermined range, and a data transceiver for updating the location information data by connecting to a server; And a warning unit connected to the master processor and configured to include a warning unit that receives the received signals from the radar detector and the GPS receiver and warns the received signals. The method of claim 2, wherein the master processor suspends the process of the GPS receiver by using an interrupt when a signal is detected by the radar detector, and transmits and returns the signal detected by the radar detector to the warning unit. Vehicle driving warning device is combined with the GPS and the radar detector. delete The apparatus of claim 2, wherein the data transmitting and receiving device Vehicle driving warning device combined with GPS and radar detector, characterized in that using a modem to connect to the server to access the PSTN network. The method of claim 5, wherein the modem A vehicle driving warning system incorporating a GPS and a radar detector, using a TCP / IP modem including a TCP / IP stack and including a PPP dial up function. The method of claim 2, wherein when a new danger zone or danger element is found that is not included in the location information data, the user stores the data in a memory using an input device so that the user can be alerted later using the stored data. Vehicle driving warning device which is characterized by GPS and radar detector. 8. The vehicle driving warning apparatus according to claim 7, wherein the data stored by the user using the input device can be uploaded to a server so that other users can use the data.