JPH0526712B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an on-board information transmission device configured using a variable frequency automatic train stop device.

Conventional technology A variable frequency automatic train stopping system (commonly known as ATS) is based on the principle shown in Figure 3.
When electromagnetically coupled, the oscillation frequency of the variable frequency oscillator 3 on the vehicle is changed to the resonant frequency of the ground element 1, and the signal current from the ground element 1 is detected by detecting the frequency changing frequency with the receiver 4. The system receives display information and executes a predetermined ATS operation according to the display information.

Problems to be solved by the invention Including the variable frequency ATS device mentioned above, the conventional
ATS devices do not have the ability to transmit information from onboard vehicles to the ground, so onboard information cannot be easily obtained on the ground side.

The present invention was made in view of the above circumstances, and
The purpose of the present invention is to provide an ATS signal processing device that can transmit desired information from on-vehicle to the ground by using the variable frequency ATS device described above, and can also check speed on the ground side based on the information.

Means for Solving the Problems The present invention provides a variable frequency type automatic train stopping device in which an on-board device stores the variable frequency when the frequency of the variable frequency oscillator changes, and generates the same frequency as the frequency variable frequency. A frequency storage unit that continuously outputs the carrier wave until the next frequency change, and a frequency storage unit that identifies the frequency of the carrier wave.
a receiving section that obtains signal appearance information for ATS; an on-board information setting section that encodes necessary on-board information to be transmitted to the ground to obtain a predetermined on-board information signal; A modulation section that modulates a carrier wave that is present information to obtain a predetermined modulated output signal, and an on-vehicle antenna for transmitting the modulated output signal to the ground are attached to the vehicle. By providing an information processing device that receives the modulated output signal sent from the upper antenna to obtain on-vehicle information and signal appearance information, and performs a speed check based on the received signal appearance information, the above-mentioned It is a problem solved.

Effect Since the present invention is configured as described above, when the variable frequency oscillator changes the frequency on the train in accordance with the signal indication sent from the ground element, the frequency storage section stores the variable frequency. A carrier wave of the same frequency as the relevant frequency is output. The receiving unit identifies this carrier frequency and receives signal appearance information for ATS from the ground,
Execute a predetermined ATS operation according to the signal appearance.

On the other hand, the carrier wave indicating the signal appearance is modulated by the modulation section according to the necessary on-board information to be transmitted encoded by the on-board information setting section, and this modulated output signal is transmitted from the on-board antenna to the ground. Ru. The information processing device on the ground receives the modulated output signal transmitted from the on-board antenna using a loop coil, obtains on-board information and signal appearance information, and performs a speed check based on the signal appearance information. It is.

Embodiment FIG. 1 shows one embodiment of the ATS signal processing device of the present invention, where 1 is the ground transducer for the ATS shown in FIG. 3, and 2 is the onboard transducer also for the ATS. The on-board device 5 has a configuration as illustrated in FIG.
A frequency storage unit 6 detects the frequency change of the variable frequency oscillator 3 and continuously outputs a carrier wave of the same frequency as the frequency change frequency until the next frequency change, and identifies the frequency of the carrier wave output by the frequency storage unit 6. The receiving section 7 receives the ATS signal manifestation sent from the ground from the carrier frequency, and encodes necessary information such as door opening/closing information, failure information, etc. to be transmitted to the ground, and encodes it into a predetermined code. an on-board information setting section 8 that generates an on-board information signal; a modulation section that modulates the carrier wave output from the frequency storage section 6 in a predetermined format (for example, AM modulation) using the on-board information signal output from the on-board information setting section 8; 9. Output amplification section 10, transmitting the modulated output signal to the ground;
It consists of an on-vehicle antenna 11 provided separately from the ATS on-vehicle element 2.

On the other hand, on the ground side, as shown in FIG. 1, there are loop coils 12 and 13 for signal reception along the rail L.
An information processing device 16 consisting of an information receiver 14 and a speed checker 15 is also installed.

In the present invention having the above configuration, when the train C currently running on the rail L reaches the ground element 1 of the resonant frequency indicating a predetermined signal display state, the variable frequency The oscillator 3 changes frequency to the resonant frequency of the ground element 1. The frequency storage unit 6 detects this frequency change, stores the frequency change, and outputs a carrier wave having the same frequency as the frequency change that indicates the signal appearance.

The carrier wave is input to the receiving section 7. The receiving unit 7 includes band filters 17 ₁ to 17 _N provided corresponding to variable frequencies corresponding to signal manifestations such as G (progress), YG (deceleration), and Y (caution). A main relay that identifies the carrier frequency by and responds to a given signal manifestation given at the carrier frequency.
Operate one of IMR to NMR and receive ATS signal indications from the ground. Train C performs well-known ATS operations in accordance with the signal manifestation.

On the other hand, the carrier wave, which is the signal appearance information output from the frequency storage section 6, is sent to the modulation section 9. The modulating section 9 modulates the carrier wave with the required on-board information signal output from the on-board information setting section 8. The modulated output signal obtained by the modulating section 9 is amplified by the output amplifying section 10, and then output to the on-board information setting section 8. It is transmitted from the upper antenna 11 toward the ground.

When the train C reaches the loop coil 12 on the ground, the modulated output signal transmitted from the on-board antenna 11 is received, and the information receiver 14 demodulates the modulated output signal to receive signal appearance information and information from on-board. On-vehicle information is received and this information is output, and signal appearance information is sent to the speed checker 15, and the speed check timer of the speed checker is set to the check time corresponding to the signal appearance.

When the train C reaches the loop coil 13 and the modulated output signal from the on-board antenna 11 is received, the speed checker 15 starts counting the timer,
Start speed check. If the speed of the train C is faster than the train speed allowed by the signal display, the train C reaches the beacon 18 at the rear end of the loop coil 13 before the timer finishes counting the set inspection time. Therefore, when the onboard element 2 of the train C receives the ATS signal from the ground element 18, the ATS operation for overspeeding is executed. Further, if the speed of train C is slower than the train speed allowed by the signal display, the timer finishes timing before train C reaches the beacon 18, and the timer is given to the beacon 18.
Cancel ATS signal. Therefore, train C has ATS
It never takes. In this way, the speed of the train is checked on the ground.

Effects of the Invention Since the present invention has the configuration and operation as detailed above, it is possible to transmit signal display information and necessary on-board information from on-board the vehicle to the ground, and obtain necessary information from on-board the vehicle on the ground. In addition, it has the excellent effect of being able to check the speed on the ground using signal display information from onboard the vehicle.

Furthermore, since speed checks can be performed on the ground, there is no need to provide a speed check function on the vehicle, and a timer for speed checks can be set using information sent from onboard the vehicle. There is no need to pull in signal display information via cables from far away traffic lights, etc.
This has the excellent effect of simplifying the configuration of the device. Note that it is also possible to multiply and use the variable frequency as a carrier wave.

[Brief explanation of the drawing]

Fig. 1 is a device configuration diagram showing one embodiment of the ATS signal processing device of the present invention, Fig. 2 is a block circuit diagram of the on-board device in Fig. 1, and Fig. 3 is a conventional variable frequency type
This is a block circuit showing the configuration of an ATS device. 1: Ground element, 2: Onboard element, 3: Variable frequency oscillator,
5: On-vehicle device, 6: Frequency storage unit, 7: Receiving unit,
8: On-board information setting section, 9: Modulation section, 11: On-board antenna, 12, 13: Loop coil, 14: Information receiver, 15: Speed checker, 16: Information processing device, 18: Ground transducer, L : Rail, C: Train.

Claims (1)

[Claims] 1. An ATS signal processing device comprising an on-board device and a ground-side device, wherein the on-board device includes an on-board device 2, an on-board device 5, and an on-board antenna 11; 5 is a variable frequency oscillator 3, a frequency storage section 6, a reception section 7, an on-board information setting section 8, and a modulation section 9.
The onboard element 2 is connected to the variable frequency oscillator 3, the variable frequency oscillator 3 is connected to the frequency storage section 6, the frequency storage section 6 is connected to the reception section 7 and the modulation section 9, respectively. The information setting section 8 is connected to the modulation section 9, and the modulation section 9 is connected to the on-board antenna 11. The variable frequency oscillator 3 changes the frequency to the resonant frequency of the signal display information from the onboard element 2 and outputs it to the frequency storage section 6, which receives the input from the variable frequency oscillator 3. death,
When changing the frequency of the variable frequency oscillator 3, the variable frequency is memorized, and a carrier wave having the same frequency as the frequency changing frequency is continuously outputted until the next frequency changing, and the receiving section 7 receives the carrier wave input from the frequency storage section 6. The frequency is identified, signal appearance information for ATS is obtained, and a predetermined ATS operation is executed, and the onboard information setting section 8 creates the necessary onboard information to be transmitted to the ground, outputs it to the modulation section 9, and modulates it. The unit 9 modulates the carrier wave, which is the signal indication information input from the frequency storage unit 6, using the on-board information signal input from the on-board information setting unit 8, outputs a predetermined modulated output signal, and the on-board antenna 11 modulates the carrier wave. The modulated output signal from the section 9 is transmitted to the ground, and the ground side device receives the modulated output signal sent from the on-board antenna 11 to obtain on-board information and signal appearance information. An information processing device 16 is provided that performs a speed check based on the received signal appearance information, and uses a variable frequency ATS device to transmit desired on-vehicle information from on-vehicle to the ground. An ATS signal processing device that can perform speed checks on the ground based on information.