KR0131277B1 - The detectable apparatus of train number - Google Patents

Abstract

Disclosed is an apparatus for sensing car number. A transponder(350) which is set as a corresponding car number is installed at lower portion of a car. An energizing/antenna loops(300, 400) and wheel sensor(100) are installed on rails. A signal communication is performed among the energizing/antenna loops(300, 400) and the transponder(350). Thereby, a direction of car movement, the car number, and the number of car passed are detected.

Description

Vehicle number detection device

1 is a block diagram according to the present invention,

Figure 2 (a) is an assembled perspective view for explaining the installation state of the wheel detection sensor according to the present invention,

(b) is a view for explaining the wheel detection of the wheel detection sensor,

3 is a diagram illustrating an installation state of the energizing / antenna loop according to the present invention;

4 is a view for explaining the installation structure of the energizing / antenna loop according to the present invention,

5 is a block diagram of a transponder according to the present invention.

* Explanation of symbols for main parts of the drawings

100: wheel detection sensor 110: sensor

120: sensor 130: rail

140: inner side 150: detection unit

200: oscillation part 250: tuning board

300: energizing loop 350: transponder

400: antenna loop 450: receiver

500: Processor 550: Modem

600: line isolator 650: host computer

700: power supply 310, 320, 330, 340: fixing hole

360: fixed body 370: fastener

380 terminal block box

The present invention relates to a vehicle number detecting device for a railroad car, and more particularly, a transponder having a vehicle number assigned to each of the lower parts of a vehicle, and an energizing / antenna loop and a wheel detecting sensor installed on a rail. And a vehicle number detection device so as to detect the number of the passing vehicle.

As public transportation increases and traffic jams increase, passengers use railroads, and the frequency of using railroads to transport large quantities of cargo in large factories increases the efficient management of vehicles and the smooth loading and unloading of products and raw materials. To this end, there is a demand for a technology capable of stopping the vehicle at the correct position at the station.

In addition, as the number of vehicles increases, it is difficult to determine which section the vehicle is currently operating on because it does not know the number (unique number) of the vehicle running on the rail. Had the drawback of confusion in vehicle operation.

Therefore, in order to solve the above problems, a system for detecting a vehicle number has been developed, but since it is designed using a plurality of logic ICs, the system is frequently troubled, and the system circuit is complicated, which makes it difficult to maintain the system. .

Therefore, the present invention has been invented to solve the above problems, it is possible to detect the information such as the position of the vehicle, the direction of travel, the vehicle number, the number of vehicles and the passing time for efficient management of the vehicle in railways and large factories, etc. An object of the present invention is to provide a vehicle number detection device.

Hereinafter, the configuration of the present invention in more detail with reference to the accompanying drawings as follows.

According to the present invention, as shown in FIG. 1, the wheel detecting sensor 100 and the antenna loop 400 detect a slight frequency change of the rail vehicle 400 installed near one side of the rail and passing the rail. Oscillator 200 for supplying the oscillation voltage to the detector 150 and the energizing loop 300 to transfer to the processor 500 after the A / D conversion, and the oscillator 200 to supply a high level oscillation voltage when the detector 150 detects the wheel. And a tuning board 250 mounted inside the enclosure and adjusting and supplying an oscillation frequency of a predetermined frequency (for example, 69 KHz) to the energizing loop 300, and an energizing loop for increasing the loop power when a vehicle or a metal object is detected on the upper surface thereof. 300, a unique vehicle number is set, and a transponder 350 for oscillating a vehicle number by receiving high power by the energizing loop 300 and a vehicle number signal of the transponder 350. An antenna loop 400 for receiving, a receiver 450 for converting a vehicle number signal received from the antenna loop 400 into a digital signal, and then transmitting the digital signal to the processor 500, a detector 150, and a receiver 450. The processor 500 constituting a data package for analyzing, storing, and controlling the wheel detection signal and the vehicle number signal transmitted from the host computer 650, and modulates the serial data of the processor 500 and transmits the serial data. Modem 550 for converting the modulated signal of the host computer 650 into serial data, and a line isolator connected between the modem 550 and the host computer 650 to protect the system from the transient surge voltage on the line ( 600) and a host for displaying the number of wheels and the driving direction of the vehicle, the approach and the exact position of the vehicle, and the vehicle number of the vehicle on a monitor not shown based on the modulation signal. It is composed of computer 650.

The wheel detection sensor 100 is a side surface of the wheel detection sensor 100 in which the sensors 110 and 120 which operate when the wheel or the metal of the vehicle are close to each other, as shown in FIG. The upper and lower edges are formed to have an inclined surface, and the wheel detecting sensor 100 having the inclined surface is fixedly installed on the inner surface 140 of the rail 130 and formed on the left and right sides of the wheel detecting sensor 100. While inserting the ends of the fasteners 160 and 170 into the holes, the other ends of the fasteners 160 and 170 are fastened using nuts to one side lower end of the rail 130 to be fixedly installed.

Exemplary Drawing 3 is an exemplary view showing a state in which two or more energizing / antenna loops 300 and 400 are installed, and an energizing / antenna loop 300 and 400 is installed in the center of two rails 130, but one Installed between the energizing / antenna loops and other energizing / antenna loops with a distance of more than a certain distance (4 m) and connected between the tuning board 250 and the receiving unit 450 from the energizing / antenna loops and the energizing / antenna loops installed on the rails. Install a distance of 4m or more between transmission lines.

As such, the energizing / antenna loop 300 and 400 installed at the center of the rail 130 are energized loops in the terminal block box 380 connected to the tuning board 250 and the receiver 450 as shown in FIG. The antenna 300 is connected to the antenna loop 400 and embedded in the fixture 360, but there is a space between the fixture 360 and the energizing / antenna loops 300 and 400 embedded in the fixture 360. By filling the urethane foaming agent to embed the energizing / antenna loops 300, 400 inside the fixture 360, the weight of the entire fixture 360 is reduced.

Reference numeral 700 in the figure is a power supply for supplying the operating power to the vehicle number detecting apparatus according to the present invention, 310 to 340 is a fixed hole, 370 is an end, 390 is a fastener.

Referring to the effects of the present invention configured as described above are as follows.

When the wheel of the vehicle passes over the sensors 110 and 120 of the later detection sensor 100 fixedly installed on the inner surface 140 of the rail 130, the wheel detection signal is output and applied to the detection unit 150.

That is, the sensors 110 and 120 embedded in the wheel detecting sensor 100 use a high frequency oscillation type proximity switch. For example, the sensors 110 and 120 generate a high frequency magnetic field from a detection coil provided at the front end of the sensor. When an object (wheel of a vehicle) approaches, an induction magnetic field flows in the metal to generate heat loss. Accordingly, when the oscillation is attenuated or stopped, the sensor 110 and 120 detects the change of state and operate the output circuit. will be.

In the exemplary embodiment of the present invention, the sensors 110 and 120 embedded in the wheel detection sensor 100 normally output logic high level signals, and when the wheel of the train passes above the wheel detection sensor 100, the corresponding sensor ( 110 and 120 output the signal inverted as the logic level.

Thus, the direction of the wheel can be detected by the time difference between the outputs produced by the two sensors 110 and 120.

That is, as shown in (b) of FIG. 2, when the vehicle is traveling in the direction of the arrow to each of the sensors 110 and 120, a signal having a logic low level is output when the vehicle is passing through the output waveform. In the output signal of the sensor 110, a time of about T is delayed than the output signal of the sensor 120, and a signal having a logic low level is output. Therefore, it can be detected that the vehicle is traveling toward the sensor 110 from the sensor 120 side.

In addition, as described above, when the two sensors 110 and 120 respectively output a logic low level signal and return to a logic high level signal, it is determined that one wheel has passed and the number of passages of the wheel can be calculated. Will be.

On the other hand, the energizing loop 300 is a high frequency current of approximately 80VAC (rms) / 69KHZ input from the oscillation unit 200 is normally excited, wherein the energizing loop 300 is a capacitor provided in the tuning board 250 It is combined with the group to form a resonant circuit.

Thus, if a train enters the energizing loop 300, the frequency of the current flowing on the energizing loop 300 is changed upward by, for example, about 1 KHZ due to the magnetic field change around the energizing loop 300, and the frequency change is detected by the detector 150. When detected by), the detector 150 instructs the excitation voltage of the oscillator 200 to rise to, for example, about 120 VAC (rms), so that the energizing loop 300 also rises to about 120 VAC (rms).

As such, when the vehicle is detected by the oscillation frequency change of the energizing loop 300, the detection unit 150 applies a driving control signal to the oscillator 200 to supply energy to the transponder 350 installed on the bottom of the vehicle to generate high oscillation. The output is supplied to the energizing loop 300 through the tuning board 250, and the vehicle's entrance detection and the passage time of the vehicle are detected and detected by detecting the oscillation frequency change of the energizing loop 300.

The energizing loop 300 supplied with the high oscillation output from the oscillator 200 transmits the supplied oscillation frequency (69KHx) to the bottom of the vehicle passing on the rail, wherein the vehicle in which the transponder 350 of the vehicle is installed is an energizing loop. When passing through the rail 130 is installed 300 receives the oscillation frequency transmitted from the energizing loop 300 from the transponder 350 to generate a certain level of induced voltage, the generated induced voltage is transponder 350 The frequency corresponding to the unique vehicle number of the vehicle passing through the energizing loop 300 and supplied to the vehicle number generation circuit configured inside the vehicle is emitted to the antenna loop 400.

That is, the transponder 350 may include a pickup coil 351 for generating power for its own operation and a vehicle number, even if a separate power supply device is not connected as shown in FIG. 5. 352, an FSK modulator 353 for directly modulating and transmitting a vehicle number using a shift register, and a bar coil 354 for wirelessly transmitting a modulated signal, wherein the pickup coil 351 has an induction effect. When the rectifier 355 rectifies and supplies the DC voltage necessary for the operation of the internal device through the rectifier 355, the shift register in the FSK modulator 353 operates to obtain the unique vehicle number stored in the memory unit 352. The bit number is read out, and the unique vehicle number is output in the form of wireless data that is modified in a variable reactance manner through the bar coil 354 by this operation, and the wireless data is energized loop 300. The antenna loop 400 is attached to the antenna loop 400 attached to the antenna loop 400 and is input to the receiver 450 via the coaxial cable.

The antenna loop 400 transmits a frequency corresponding to the vehicle number received from the transponder 350 to the receiver 450 through the terminal block box 380, and the receiver 450 transmits the frequency of the received vehicle number. The signal is converted into a digital signal and transmitted to the processor 500 and the host computer 650.

In the processor 500 in which the wheel detection signal is applied from the detector 150 and the vehicle number is applied from the receiver 450, the processor 500 itself analyzes the applied wheel detection signal and the vehicle number in the direction of the vehicle. The number of vehicles, the passing time of the vehicle, the vehicle number, etc. are determined and stored in the memory in the processor 500, and based on this, the operation of the oscillator 200 is controlled.

In the modem 550 in which various data according to the vehicle progress are input and output from the receiver 450, the processor 500, and the detector 150, the host computer 650, the receiver 450, the processor 500, and the detector ( In order to transmit the data between the receivers 450, the processor 500, and the detector 150, the data is transmitted from the host computer 650 to the host computer 650. The serial data is modulated and transmitted from the host computer 650 to the receiver 450. The modulated signal transmitted to the processor 500 and the detector 150 is converted into serial data and transmitted.

At this time, the line isolator 600 connected between the receiver 450, the processor 500, the detector 150, and the host computer 650 is connected to the host computer from an instantaneous surge voltage generated on a line connected to the host computer 650. Protect the configuration of the entire system, including (650).

The host computer 650 in which data about the driving direction of the vehicle, the number of connected vehicles, the passing time of the vehicle, the number of the vehicle, and the like is inputted is not shown to more efficiently control the vehicle operation by transmitting and receiving data with a system installed on another rail. By displaying the driving direction, the number of connected vehicles, the passing time of the vehicle and the vehicle number with the display device, it is possible to cope with the driving or accident of the vehicle.

As described above, the present invention determines the driving direction of the vehicle, the number of connected vehicles, the passing time of the vehicle and the like by using the wheel detection signal detected from the wheel detection sensor, and the high amplitude of the transponder installed on the bottom of the vehicle from the energizing loop when the vehicle enters. The number of vehicle connections and the passing time of the vehicle are transmitted by transmitting the oscillation frequency with the antenna number by operating the transponder installed in the vehicle with the voltage induced by the oscillation frequency and receiving the emitted vehicle number frequency through the antenna loop. , Car number, etc. is effective.

Claims (6)

The two high frequency oscillation type proximity sensors 110 and 120 are installed in a line along the rail 130 to detect the wheels of the vehicle passing on the rails through the change of the high frequency magnetic field, and the energizing sensor. Detection of the frequency change of the loop 300 to adjust the excitation voltage of the oscillator 200, supplying a basic oscillation voltage to the energizing loop 300 and the detection unit 150 stepped up than the basic oscillation voltage when detecting the vehicle Oscillator 200 for supplying the oscillation voltage, the tuning board 250 for adjusting and supplying the oscillation frequency of a predetermined frequency (69KHz) to the energizing loop 300, the transponder (350) when the vehicle passes on the upper surface ( Energizing loop 300 to induce the driving power of 350, the unique vehicle number is stored and the transponder 350 to wirelessly transmit the vehicle number by receiving a high power by the energizing loop 300, the An antenna loop 400 for receiving the vehicle number of the lansponder 350, a receiver 450 for converting the vehicle number data received by the antenna loop 400 into a digital signal, and then transmitting the converted vehicle number data to the processor 500. 150 and serial data of the processor 500 constituting a data package for analyzing, storing and controlling the wheel detection signal and the vehicle number transmitted from the receiving unit 450 and transmitting to the host computer 650 Modem 550 which modulates and transmits to the line and converts the signal of the host computer 650 into serial data, and is connected between the modem 550 and the host computer 650 to protect the system from momentary surge voltage on the line. The line isolator 600 to display the number of wheels and the direction of travel of the vehicle and the approach and position of the vehicle on the monitor not shown on the basis of the modulated signal and the vehicle number of the vehicle Display the license plate number detecting device, characterized by doeeojim comprises a host computer (650). The vehicle number according to claim 1, wherein the transponder 350 is installed at the bottom of the vehicle and the antenna / energizing loops 400 and 300 corresponding to the transponder 350 are installed at the center of the rail. Detection device. 3. The vehicle number detection apparatus of claim 2, wherein the transponder (350) comprises a memory unit (352) for setting different vehicle numbers. The vehicle number detection device of claim 2, wherein the transponder (350) is configured to drive the oscillation voltage transmitted from the energizing loop (300) to the pickup coil (351) and use it as a driving power source. According to claim 1, wheel detection sensor 100 is composed of two high-frequency oscillation type proximity sensor (110, 120) according to the wheel detection time difference of the sensor 110, 120, the driving direction of the vehicle, the wheel of the passing vehicle Vehicle number detection device, characterized in that detecting the head. The apparatus of claim 1, wherein the oscillation unit 200 oscillates by raising the amplitude of the oscillation frequency when the vehicle or the metal is detected.