JP3369428B2 - Ground-to-vehicle information transmission device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground-to-vehicle information transmission device. More specifically, the present invention relates to a ground-to-vehicle information transmission device that uses a transponder to perform bi-directional ground-to-vehicle transmission.

[0002]

2. Description of the Related Art As a typical example of a ground-to-car information transmission device that uses a transponder to perform bidirectional ground-to-car transmission, a transponder type automatic train operation device (hereinafter referred to as AT
O device) is known. The transponder type ATO device is used, for example, in one-man operation or unmanned operation in a saw-tooth monorail system. When the transponder ATO device is used to perform one-man operation or unmanned operation in this seat type monorail system, a ground element (transponder) is laid along the track in the station where the vehicle is stopped. The vehicle is equipped with a car top, a signal processing device, etc., and transmits and receives data through the connection between the car top and the ground. The signal processing device receives the data supplied from the ground wire via the car core, and returns the received data to the ground side through the coupling of the car core and the ground core. On condition that the data communication described above is performed without delay, operations such as opening and closing the vehicle door and starting the vehicle necessary for one-man operation or unmanned operation are performed.

In the case of the conventional general railroad, the distance between the upper child and the ground child is stable, and the variation in the distance is within the stable communication area even when passengers get on and off. However, the situation is different in the case of this seat type monorail system. In this seat-type monorail system, a track is provided at the center of the vehicle, and the running wheels are arranged on the track, so that the vehicle support structure is like a balance in appearance and structure. For this reason, the change in the inclination of the vehicle due to the passengers getting on and off tends to be larger than that in the case of the general railway.

Further, due to the structural vehicle limit set for vehicle operation safety, the separation distance between the vehicle upper member and the ground member is set near the limit of communicable separation distance. There is.

Therefore, when the transponder type ATO device is applied to the child-seat type monorail system, the distance between the ground element and the vehicle upper element exceeds the communicable limit distance due to the motion of the vehicle. Therefore, it is conceivable that the door open command, the fixed point area state command, and the like will be interrupted, causing a problem such that the vehicle door is closed while the passenger is getting on and off.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the problem that the distance between the ground element and the vehicle upper element temporarily fluctuates beyond the communicable limit distance while the vehicle is stopped. The object is to provide a device capable of continuing stable ground-to-vehicle information transmission.

[0007]

In order to solve the above problems, a ground-to-vehicle information transmission device according to the present invention includes a ground element and an on-board device. The ground element is laid along a track on which the vehicle runs in a station where the vehicle stops.

The on-board device includes an on-board member, a vehicle speed detecting device, and a signal processing device, and is mounted on the vehicle. The train car is connected to the ground train to transmit and receive data. The vehicle speed detection device detects the speed of the vehicle.

When the speed detection signal S1 supplied from the vehicle speed detecting device corresponds to a speed equal to or lower than a predetermined speed, the signal processing device receives the reception data supplied from the ground element through the car upper element. -Remember the received data
Output.

[0010] In the station where the vehicle stops,
The on-board child, which is laid along the track on which the vehicle travels and is included in the on-board device, is connected to the ground child to transmit and receive data. The signal processing device outputs the reception data supplied from the ground element through the on-vehicle element. The data output from the signal processing device is transmitted to the ground element via the vehicle upper element. With this configuration, a transponder ATO device can be realized.

The on-board device includes a vehicle speed detecting device, as well as an on-board component and a signal processing device. The vehicle speed detection device detects the speed of the vehicle. When the speed detection signal S1 supplied from the vehicle speed detection device corresponds to a speed equal to or lower than a predetermined speed, the signal processing device stores and stores the reception data supplied from the ground element through the vehicle upper element. Outputs received data. Therefore, even when the distance between the grounding element and the vehicle upper element temporarily exceeds the limit distance in which communication is possible while the vehicle is stopped, the signal processing device can store the stored data. It will be transmitted to the ground terminal through the train terminal. For this reason, the signal processing device capable of continuing stable ground-to-vehicle information transmission has a configuration in which when the received data changes, the stored received data is updated and the updated data is output. be able to. In this case, different data can be transmitted while the vehicle is stopped to give a required fixed point area state command, for example, a vehicle door opening / closing operation.

When the speed detection signal S1 corresponds to a speed equal to or higher than a predetermined speed, the signal processing device clears the stored reception data and stops the output. This completes the fixed point area state command.

[0013]

1 is a diagram schematically showing the configuration of a ground-to-vehicle information transmission device according to the present invention. As illustrated, the ground-on-vehicle information transmission device according to the present invention includes a ground element 111 and an on-vehicle device 2. The ground element 11 constitutes the ground apparatus 1 together with the transmission / reception apparatus 12, and is laid along the track 4 on which the vehicle 3 travels in the station A where the vehicle 3 stops. 1 to 1
It is composed of three loop coils and the like. The vehicle 3 is, for example, a small-seat monorail vehicle, and the track 4 supports the monorail vehicle 3.

The on-board device 2 includes an on-board child 21, a vehicle speed detecting device 22, and a signal processing device 23, and is mounted on the vehicle 3. The on-board child 21 is an antenna and is connected to the ground child 11 to transmit and receive data. The vehicle speed detection device 22 detects the speed of the vehicle 3. A typical example of the vehicle speed detection device 22 is a speed generator, but other types may be used.

The signal processing device 23 is a vehicle speed detecting device 2.
When the speed detection signal S1 supplied from 2 corresponds to a speed equal to or lower than a predetermined speed, for example, 5 km / h or lower, the reception data supplied from the ground element 11 through the car upper element 21 is stored, The stored reception data is output.

In the embodiment, the signal processing device 23 updates the reception data stored in the memory when the reception data changes. The update data in the memory is read out by the transmitting device and output to the car top 21. The signal processing device also updates the stored reception data when the reception data has changed, and outputs the updated data.

Further, when the speed detection signal S1 corresponds to a speed equal to or higher than a predetermined speed, the stored reception data is cleared and the output is stopped.

When the speed detection signal S1 corresponds to a speed equal to or higher than a predetermined speed, the reception data stored in the memory is cleared and the output is stopped.

Next, the operation of the present invention will be described with reference to FIG. In the present invention, the ground element 11 is laid along the track 4 on which the vehicle 3 travels in the station A where the vehicle 3 is stopped, and the vehicle element 21 included in the onboard device 2 is
While the vehicle 3 is stopped, it is connected to the ground element 11 to transmit and receive data. FIG. 2 (a) shows data A to D transmitted from the ground element 11 to the vehicle upper element 21. Such data A to D include vehicle door opening / closing information, various service information, etc., and are given as, for example, FSK modulated signals.

The signal processing device 23 receives the reception data supplied from the ground element 11 via the on-board element 21, and outputs this reception data (see FIG. 2 (d)). Signal processing device 23
The data output from the above is transmitted to the ground element 11 via the vehicle upper element 21. According to this configuration, the transponder system A
A TO device can be realized.

The on-vehicle device 2 includes a vehicle speed detecting device 22 as well as an on-vehicle child 21 and a signal processing device 23.
The vehicle speed detection device 22 detects the speed of the vehicle 3. Figure 2
(e) shows the speed characteristic curve of the vehicle, and FIG. 2 (f) is shown in FIG. 2 (e).
The speed detection signal obtained from the speed characteristic curve of FIG. As is apparent from these figures, when the vehicle speed becomes 5 km / h or less, the vehicle speed detection signal S1 changes from the logical value 0 to the logical value 1.

The signal processing device 23 is a vehicle speed detecting device 22.
The speed detection signal S1 supplied from
When corresponding to / h or less, speed detection signal S1 with logical value 1
Based on the above, the reception data A to D supplied from the ground element 11 via the on-board element 21 are stored, and the stored reception data A to D are stored.
Is output (see FIG. 2 (d)).

While the vehicle 3 is stopped, the ground element 11 and the vehicle upper element 2
When the distance between the ground element 11 and the vehicle 1 fluctuates beyond the temporarily communicable limit distance, as shown at t1 to t2 and t3 to t4 in FIG. The connection with the upper child 21 is lost, and the reception data A to D of the upper child 21 is t.
Discontinuation occurs from 1 o'clock to t2 o'clock and from t3 o'clock to t4 o'clock (see FIG. 2 (c)). In such a case, conventionally, there has been a problem that the door opening command, the fixed point area state command, and the like are interrupted, and the vehicle door is closed while the passenger is getting on and off.

On the other hand, in the present invention, the signal processing device 23 has a logical value of 1 when the speed detection signal S1 supplied from the vehicle speed detection device 22 corresponds to a predetermined speed of 5 km / h or less. Based on the speed detection signal, the reception data A to D supplied from the ground element 11 via the on-board element 21 are stored, and as shown in FIG. 2 (d), the stored reception data B1,
B2 is output. Therefore, when the vehicle is stopped,
Even if the separation distance between the vehicle and the upper armature 21 fluctuates beyond the limit distance at which communication is possible temporarily, the signal processing device transmits the stored data to the ground contact point via the upper armature 21. 11 will be transmitted. Therefore, information transmission between the ground and the vehicle can be apparently continued and stably controlled.

When the reception data A to D changes, the signal processing device 23 updates the stored reception data A to D and outputs the updated data. That is, as shown in FIG. 2 (d), when the reception data B is changed to the reception data C while the reception data B2 is being stored, when the reception data B is changed, At t4 when 21 is recombined, the update data C is output.
Therefore, different data can be transmitted while the vehicle is stopped to give a required fixed point area state command, for example, a vehicle door opening / closing operation.

When the speed detection signal S1 corresponds to a predetermined speed of 5 km / h or more (see FIG. 2 (e)), the signal processing device clears the stored reception data A to D and outputs it. To stop. This completes the fixed point area state command.

[0027]

As described above, according to the present invention, when the vehicle is stopped, the distance between the ground element and the vehicle upper element fluctuates beyond the temporarily communicable limit distance. Even if
It is possible to provide a device that can stably maintain the control output by the information transmission between the ground and the vehicle.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing a configuration of a ground-to-vehicle information transmission device according to the present invention.

FIG. 2 is a time chart explaining the operation of the ground-to-vehicle information transmission device according to the present invention shown in FIG.

[Explanation of symbols]

1 Ground equipment 11 ground child 2 On-board equipment 21 car child

Claims (6)

(57) [Claims] 1. A ground-to-vehicle information transmission device including a ground element and an on-board device, wherein the ground element is laid along a track on which the vehicle runs in a station where the vehicle is stopped. The on-board device includes an on-board child, a vehicle speed detecting device, and a signal processing device, and is mounted on the vehicle. The vehicle speed detecting device detects the speed of the vehicle, and the signal processing device responds to the speed detection signal S1 supplied from the vehicle speed detecting device being equal to or lower than a predetermined speed. In this case, the ground-to-vehicle information transmission device stores the received data supplied from the ground element through the on-board element and outputs the stored received data. 2. The ground-to-vehicle information transmission device according to claim 1, wherein the signal processing device updates stored reception data when the reception data changes. A ground-on-board information transmission device that outputs updated data. 3. The ground-to-vehicle information transmission device according to claim 1, wherein the signal processing device is configured to: when the speed detection signal S1 corresponds to a speed equal to or higher than a predetermined speed. A ground-to-vehicle information transmission device that clears stored reception data and stops output. 4. An on-vehicle device which is mounted on a vehicle and constitutes an on-ground-to-on-vehicle information transmission device, comprising an on-vehicle child, a vehicle speed detecting device, and a signal processing device, The upper child couples with the ground child to send and receive data, the vehicle speed detection device detects the speed of the vehicle, and the signal processing device supplies a speed detection signal supplied from the vehicle speed detection device. An on-vehicle device that stores reception data supplied from the vehicle top and outputs the stored reception data when S1 corresponds to a speed equal to or lower than a predetermined speed. 5. The on-vehicle apparatus according to claim 4, wherein the signal processing device updates the stored reception data when the reception data changes, and updates the updated data. On-board device to output. 6. The on-vehicle device according to claim 4, wherein when the speed detection signal S1 corresponds to a speed equal to or higher than a predetermined speed, the signal processing device stores the received data. On-board device that clears data and stops output.