JPH0746882B2 - Train monitoring equipment - Google Patents

Description

Description: [Industrial field of application] The present invention relates to a train monitoring device capable of discriminating the position of each vehicle even when two fixed train sets are connected.

[Prior Art] FIG. 2 is a block diagram showing a configuration of a train monitoring device shown on page 496 of, for example, "19th National Symposium on Cybernetics in Railways". In the figure, (101) to (108) are monitoring stations provided for vehicles 1 to 8 respectively, and these are connected by a serial transmission line L that connects adjacent vehicles in series. It forms 8 fixed trains. Reference numeral (110) is an indicator connected to the monitoring station (101) of the first car, and (111) is an indicator connected to the monitoring station (108) of the eighth car.

The conventional train monitoring device is configured as described above, and one of the eight monitoring stations (101) to (108), which is one of the monitoring stations (101) or (108) installed in the leading vehicle, It operates as a control station for transmission control.

Now, assuming that the first vehicle on the left side of FIG. 2 is the leading vehicle, the monitoring station (101) becomes a control station, and the monitoring stations (102) to (108) become subordinate stations. Therefore, the monitoring station (101) uses the serial transmission line L
The monitoring stations (102) to (108) are sequentially called via the, to collect and edit the information of each vehicle from No. 2 to No. 8 and display it on the display (110). This information is appropriately displayed on the display (111). At this time, the station numbers (for example, 1 to 8 corresponding to the car number) of the own station are set in advance in the respective monitoring stations (101) to (108) by a switch (not shown) as a car number setting means. There is. Therefore,
The monitoring stations (102) to (108) respond to the monitoring station (101) only when the station number of the own station is designated by the monitoring station (101) and a response request is made (information regarding the vehicle to which the own station belongs). return it. Further, in this case, since it is determined that the trains are fixed trains, that is, the trains are arranged in the order of the car numbers, the positions of the trains equipped with the monitoring stations (101) to (108) on the train train (from the top It is possible to determine the number of eyes).

[Problems to be Solved by the Invention] As described above, the conventional train monitoring device determines the station numbers of the respective monitoring stations (101) to (108) according to the setting corresponding to the train number, so that it can be used on the business line. When trains were combined, multiple monitoring stations with the same station number were created,
There is a problem that it is difficult to exchange information between the monitoring stations of the control station and the subordinate stations, and the position of the train equipped with each monitoring station in the train set cannot be determined.

The present invention has been made to solve the above problems. Even when a fixed train set equipped with a train monitoring device is connected, the station numbers of the respective monitoring stations are distinguished and the train set of each car is Train monitoring that can determine the position and that does not affect the exchange of information between each monitoring station in a fixed train formation that has a train monitoring device, even if you connect a fixed train formation that does not have a train monitoring device The purpose is to obtain the device.

[Means for Solving the Problems] In the train monitoring device according to the present invention, a monitoring station belonging to a vehicle at one end of a fixed train set includes a switching circuit inserted at one end of a serial transmission line. The switching circuit is provided between the switching circuit and the train connection part of the serial transmission line, and detects whether or not a transmission signal indicating the connection state is flowing from the serial transmission line in another fixed train formation to open / close the switching circuit. And a transmission signal detection circuit for determining the state, the transmission signal detection circuit opens the switching circuit when no transmission signal is detected, and functions as a control station of the monitoring station belonging to the vehicle at one end. When the transmission signal is detected, the switching circuit is closed and the function as a control station is stopped.

[Operation] In the present invention, the switching circuit is opened / closed and the function of the control station of the own monitoring station is started or closed based on whether or not the transmission signal indicating the connection of another fixed train set is detected or not detected. It is stopped and only one monitoring station belonging to the vehicle at one of the predetermined ends of the train is operated as the control station.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. First
Figure is a block diagram showing an embodiment of the present invention, L1 and
L2 corresponds to the above-mentioned serial transmission line L. Also, (11) ~
(14) and (21) to (24) are monitoring stations having the same configuration as the above-mentioned (101) to (108), and are equipped with a vehicle number setting switch (not shown) of the vehicle to which each belongs, (11) And (21) is 1
Car No. 2, (12) and (22) are cars No. 2, (13) and (23) are cars No. 3, and (14) and (24) are cars No. 4.

(1) is the first fixed train formation consisting of cars 1 to 4,
(2) is a second fixed train formation including cars 1 to 4, and these fixed train formations (1) and (2) are connected to form one train. Further, each monitoring station (11) to (14) and (21) to (24) in the fixed train formation has a formation number setting switch (not shown) for setting the formation number of the fixed train formation to which it belongs. Equipped with a monitoring station (11) ~ (14)
Is assigned the formation number "01" indicating the first fixed train formation, and the monitoring stations (21) to (24) are assigned the formation number "02" indicating the second fixed train formation. Incidentally, a two-digit or three-digit number is usually used as the composition number. Although not shown, the trains at both ends of the fixed train formations (1) and (2) are provided with the same indicators (not shown) as conventional ones.

T11 to T14 and T21 to T24 are transmitter / receiver circuits built in the respective monitoring stations (11) to (14) and (21) to (24), which are connected by the serial transmission lines L1 and L2, and the serial transmission lines L1. And transmitting and receiving transmission signals on L2.

D1 and D2 are the monitoring stations (1
1), a transmission signal detection circuit built in (21), which has a function to detect whether a transmission signal is flowing on the serial transmission lines L1 and L2. For example, it detects the carrier frequency signal of the transmission signal. It is supposed to do.

SW1 and SW2 are switching circuits built in the monitoring stations (11) and (21) belonging to the first car, respectively, and the transmission signal detection circuits D1 and D2 detect transmission signals indicating the connection of other fixed train sets adjacent to each other. Then, based on the detection signal from the transmission signal detection circuit D1, D2, selectively the serial transmission line in the adjacent fixed train set and each serial transmission line L1, L2 in the fixed train set to which it belongs It is designed to connect.

Here, the switching circuits SW1 and SW2 are the transmission / reception circuits T11 and T2.
21 and the transmission signal detection circuits D1 and D2.The transmission signal detection circuits D1 and D2 are composed of open / close switches inserted in the serial transmission lines L1 and L2, respectively.
It is connected between W2 and the train connection.

Also, the transmission signal detection circuits D1 and D2 and the switching circuits SW1 and S
W2 is built in the monitoring stations (11) and (21) belonging to the first car, respectively, but it is built in at one end that is predetermined, for example, the monitoring stations (14) and (24) belonging to the last vehicle. Good.

Next, the operation of the embodiment of the present invention shown in FIG. 1 will be described.

The monitoring stations (11) and (21) belonging to each car No. 1 operate under the following conditions.

(A) First, the switching circuits SW1 and SW2 are off (open) in the initial state (state after power is turned on), and at this time, the control station is activated.

(B) While operating as a control station, it is sometimes checked by the transmission signal detection circuits D1 and D2 whether or not a transmission signal is sent from the connected fixed train cars.

(C) When the transmission signal detection circuit D1 or D2 detects a transmission signal, the operation as a control station is stopped and the switching circuit SW1 or SW2 of its own station is turned on (closed) to operate as a dependent station. Enter the state.

(D) When the transmission signal from the control station is interrupted for a certain time or more while operating as a dependent station, the switching circuit SW1 or SW2 of the own station is turned off and the control station is started again.

For example, when the first fixed train formation (1) and the second fixed train formation (2) are separated, the operation of the train monitoring device in each fixed train formation (1) and (2) is the same as the conventional one. That is, in the first fixed train formation (1), the monitoring station (11) becomes the control station, and the transmission / reception circuit T11 to the serial transmission line L
Call the monitoring stations (12) to (14) via 1
Collect information for each vehicle. This operation is the same in the second fixed train formation (2).

Here, if the fixed train sets (1) and (2) are connected as shown in FIG. 1, the transmission signal detection circuit D2 in the monitoring station (21) detects the transmission signal from the serial transmission line L1. Then, the switching circuit SW2 is turned on to connect the serial transmission lines L1 and L2. Then, the monitoring station (21) stops its operation as a control station and becomes a subordinate station, stops calling for information to the serial transmission line L2, and enters an operation with a call from the monitoring station (11) (control station). .

At this time, the monitoring station (11), via the serial transmission lines L1 and L2, the station number "01" of the fixed train set to which the station belongs belongs to the monitoring stations (12) to (14) and (21). ) ~ (24).

Each of the monitoring stations (12) to (14) and (21) to (24) receives the organization number “01” from the monitoring station (11) and calls it the organization number “01” or “02” of its own. Compare. Then, if it matches the organization number “01” on the control station side, it is determined that the own station is in the same first fixed train organization (1) as the monitoring station (11), and if it does not match, the own station is the control station. It is determined that it is in a fixed train formation (2) different from the side. As a result, the monitoring station (11) can distinguish between the monitoring stations having the same car number, for example, the monitoring stations (12) and (22).

Specifically, in the monitoring stations (11) to (14) in the first fixed train formation (1) on the control station side, the car number of its own station is directly used as the station number, and the second fixed train formation (2) In each of the monitoring stations (21) to (24), the number obtained by adding "10" to the car number of its own station is set as the station number.

As a result, in the example of FIG. 1, each monitoring station (11) to (14)
And the registration station numbers of (21) to (24) are from the left end,
"1", "2", "3", "4", "11", "12",
It becomes "13" and "14". Therefore, in the transmission control of the monitoring station (11), the monitoring stations (11) to (14) and (21) to (24)
The registered station numbers do not overlap, and the station number arrangement is in a fixed order of size corresponding to the physical arrangement of each vehicle.

In this way, the monitoring station (11) discriminates the position of the vehicle to which each monitoring station (11) to (14) and (21) to (24) belongs in the train set (what number it is from the head) and monitors it. The status of each vehicle is displayed on a display (see FIG. 2) connected to the stations (11) and (24) to inform the driver or crew accurately.

Further, assuming that the fixed train formations (1) and (2) are separated from each other, the transmission signal detection circuit D2 detects that the transmission signal from the serial transmission line L1 to the serial transmission line L2 is interrupted. Turns off, and the monitoring station (21) starts operating as a control station.

In the above embodiment, each fixed train formation (1) and (2)
Have described the case where they are equipped with a train monitoring device, it is clear that there is no inconvenience when connecting fixed train sets of different types that are not equipped with a train monitoring device.

For example, if the first fixed train formation (1) does not include a train monitoring device, even if it is connected to the second fixed train formation (2) as shown in FIG. Since the detection circuit D2 does not receive the transmission signal, the monitoring station (21) continues to operate as a control station. Therefore, there is no influence due to the connection of the first fixed train formation (1), and the information of each vehicle can be accurately displayed on the display connected to each monitoring station (21) and (24). .

The above operation can be performed even when there is no margin in the signal line of the train connecting portion or when a signal of an appropriate condition cannot be obtained from another device.

[Effects of the Invention] As described above, according to the present invention, the monitoring station belonging to the vehicle at the end of the fixed train formation has the switching circuit inserted into one end of the series transmission line, the switching circuit and the serial transmission. For determining the open / closed state of the switching circuit by being provided between the line and the train connecting part and detecting whether or not a transmission signal indicating the connected state is flowing from the serial transmission line in another fixed train formation. The transmission signal detection circuit has a transmission signal detection circuit, and when the transmission signal is not detected, the transmission signal detection circuit opens the switching circuit and activates the function as the control station of the monitoring station belonging to the vehicle at one end, When it is detected, the switching circuit is closed and the function as a control station is stopped, and only one monitoring station belonging to the vehicle at one end of the train that is predetermined is operated as a control station. Is it the form of fixed train organization? However, even if the two fixed train formations are connected and disconnected on the business line at any time, there is an effect that a train monitoring device capable of accurately grasping the monitoring information of the entire connection can be obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional train monitoring device. (1) …… First fixed train formation (2) …… Second fixed train formation (11) to (14), (21) to (24) …… Monitoring stations L1 and L2 …… Serial transmission lines D1 and D2 ...... Transmission signal detection circuit SW1, SW2 ...... Switching circuit In the figures, the same symbols indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A monitoring station mounted on each vehicle of a fixed train set consisting of a predetermined number of vehicles; a serial transmission line that connects each of the vehicles in series and is connected to all of the monitoring stations; A car number setting means for giving information indicating where in the fixed train formation to the monitoring station, and a formation number setting means for giving formation numbers for distinguishing the fixed train formation to each of the monitoring stations. In the train monitoring device provided, the monitoring station belonging to the vehicle at one end of the fixed train formation is a switching circuit inserted at one end of the series transmission line, and the switching circuit and the series transmission line Transmission for determining the open / closed state of the opening / closing circuit by being provided between the train connecting section and detecting whether or not a transmission signal indicating the connected state is flowing from the serial transmission line in another fixed train formation With signal detection circuit The transmission signal detection circuit, when the transmission signal is not detected, start a function as a control station for monitoring station belonging to the vehicle of the one end portion with opening the opening and closing circuit,
The train monitoring device, wherein when the transmission signal is detected, the switching circuit is closed and the function as the control station is stopped.