KR940002728B1 - Vehicle discriminating device on wireless signal transmitter - Google Patents

Abstract

A radio transmitter to transmit the specific radio signals corresponding to a car number and a radio receiver to receive the above transmitted signals to identify automatically the car number are provided for this identifier system. A transmitter (A) installed in a car comprises a frequency generator (10) to generate specific frequencies, a modulator (30), a X-BAND class RF generator (50), a transmitter (40) and an antenna. A receiver (B) consisting of a RF receiver (60), a demodulator (70), a computer terminal (90), and an alarming unit (110) receives all passing through vehicles' transmitted signals automatically, records, and alarms if the detected vehicle is one of the cars wanted by the police.

Description

Vehicle identification device by wireless signal transmitter

1A is a block diagram of a transmitter of the present invention.

(b) A block diagram of the receiver of the present invention.

* Explanation of symbols for main parts of the drawings

10: natural frequency generator 20: combiner

30 modulator 40 transmitter

50: high frequency oscillator 60: high frequency receiver

70: demodulator 80: decryptor

90: computer terminal 100: central computer

110: alarm device A: transmission device

B: Receiver

The present invention relates to a vehicle identification device by a radio signal transmitter for automatically detecting the vehicle by transmitting a unique radio signal corresponding to the vehicle number.

Conventionally, a vehicle identification device using a wireless signal transmitter has been disclosed in Japanese Patent Laid-Open No. Hei 2-159700 and Japanese Utility Model Laid-Open No. 64-18398, but they transmit a pilot frequency and transmit a pilot frequency. In response, the vehicle (mobile station) receives a radio wave of a vehicle unique number transmitted by the vehicle, and if it is a vehicle registered in advance, the ground station (parking station fixing device) equipped with a device for outputting a matching signal, and the pilot radio wave transmitted from the ground station It consists of a vehicle (mobile station) equipped with a transceiver (transmission station) that transmits its own unique number so that only certain vehicles that have been pre-registered with the ground station are allowed to proceed (allowing entry to the parking lot) to prevent unauthorized progress of the vehicle. It was limited to the parking lot management system.

In general, all cars are assigned a unique license plate number and obliged to attach the license plate to identify the vehicle.However, if the license plate is crushed, badly painted, heavily soiled with dirt or dust, or at night If the number is low, it is not only difficult to read the vehicle number, but also in the traffic side of the vehicle, traffic congestion occurs due to the temporary stop at the tollgate toll road of the expressway to pay or receive a receipt. There was a problem such as.

In order to solve this problem, the present invention provides a unique wireless signal transmitter in various automobiles so that the vehicle can be automatically detected by a wireless sensor, and at the same time, the toll gate, etc., records the passing vehicle in a computer by wireless detection signal and then passes. It is to be able to solve the traffic jam phenomenon by notifying the fare later, which will be described in detail according to an embodiment as follows.

Existing license plate is a registered jurisdiction such as "Seoul, Busan, Daegu ..." and "1,2,5,7 ...", the unique number and unique characters according to the vehicle type "A, B," C ... "and 4 digit serial numbers are used to distinguish each of 7 units by using different letters and numbers. Therefore, the unique frequency band is assigned to each of the 7 units as shown in" Table 1 ".

TABLE 1

Then subdivide each frequency band according to unique letter or number as follows (the frequency unit is MHZ).

1) local frequency

Seoul, Busan, Incheon, Daegu ...

200, 210, 220, 230 ...

2) Model number frequency

1, 2, 3, 4 ...

310, 320, 330, 340 ...

3) Character frequency

Go, me, da, la ...

400, 410, 420, 430 ...

4) Serial number thousandth frequency

0, 1, 2, 3 ...

500, 510, 520, 530 ...

5) Serial number hundreds digit frequency

0, 1, 2, 3 ...

600, 610, 620, 630 ...

6) Serial number 10 digit frequency

0, 1, 2, 3 ...

700, 710, 720, 730 ...

7) Serial Number Job Frequency

0, 1, 2, 3 ...

800, 810, 820, 830 ...

If the frequency corresponding to the license plate of the vehicle by the subdivided frequency as described above is as follows.

Example) Vehicle number --- Daegu 1-ga 1234

Outgoing frequency of the transmitter

Daegu --- 230

1 --- 310

Go --- 410

1 --- 510

2 --- 620

3 --- 730

4 --- 840

Therefore, the vehicle having the Daegu 1-ga 1234 license plate is equipped with a transmitter that simultaneously transmits different radio frequencies of 230, 310, 410, 510, 620, 730 and 840 MHZ, and the radio signal is always transmitted when the vehicle is in operation.

FIG. 1A is a block diagram of a transmission apparatus mounted on various automobiles according to the present invention, in which a natural frequency generator 10 for generating the subdivided frequency and the generated frequency are respectively combined to correspond to a license plate of a vehicle. The modulator 30 for modulating the combined signal with the combiner 20 and the transmitter 40 for transmitting the modulated unique number and the antenna, respectively, and an antenna connected to the other end of the modulator 30. An X-BAND (typically between 5.2 MHZ and 10.9 MHZ) oscillator 50 is connected to a variety of vehicles in which the transmission device A is mounted so that a radio signal is always transmitted while driving.

FIG. 1A is a block diagram of a ground station receiver B installed in a toll gate, a checkpoint, or the like according to the present disclosure, and includes an antenna and an X-band (X-BAND) for receiving signals transmitted from the transmission devices A of various automobiles. A high frequency receiver 60, a demodulator 70 for demodulating the signal received by the receiver 60, a decoder 80 for decoding the demodulated signal, and a computer terminal 90 for comparing and analyzing the decoded signal. Connected to each other, the ground station receiving device (B) to which the central computer 100 and the alarm device 110 are connected to the network (NET WORK) at one end of the computer terminal 90, and installed the transmission device (A) The vehicle detects a wireless signal, which is a unique number that is transmitted as the vehicle passes, and inputs the detected signal to a terminal (local computer) for recording, and each terminal is connected to a central computer to record and store the passing vehicle. In case of departure And calculating the toll by the detection signals of the destination toll gate and the running total record of these charges by it is possible to solve the congestion caused by pauses in the toll gate hameuroseo issue a further passage bill.

In addition, checkpoints such as the installation of a separate alarm device 110 to search for a vehicle that does not detect the radio frequency for vehicle identification, or when an ordered vehicle passes from the central computer, the alarm sounds to make the arrangement of the vehicle for easy identification You can do it.

Therefore, the present invention can be used in parallel with the existing license plate to solve the difficulty of reading due to the defect of the license plate, as well as smooth the flow of cars at toll gates and toll roads, and facilitate the inspection of the vehicle. There is one effect.

In the present invention, the radio frequency band can be set differently as needed. In the present invention, the frequency band of 10MHZ is subdivided according to the unique letter or number. The effect is the same.

Claims (1)

In the wireless vehicle identification device: a natural frequency generator (10) corresponding to the license plate, a combiner (20) for combining the natural frequency to match the license plate of the vehicle, a modulator (30) for modulating the combined signal and And a high frequency antenna and a high frequency oscillator 50 connected to each of the transmitter 40 and an antenna to transmit a unique number of a vehicle to a vehicle, and to receive a signal from the transmitter A. The receiver 60, the demodulator 70 and the decoder 80 are connected to one end of the computer terminal 90 connected to the alarm device 110 connected to the receiver (B) connected to the ground station of various vehicles Receiving and detecting the unique number is input to the computer terminal (90) connected to the central computer 100, the vehicle identification device by a wireless signal transmitter, characterized in that recording and preservation of the data on the passing vehicle and alarm.

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