JP5008526B2 - Train detector - Google Patents

Description

  The present invention relates to a train detection device of a new traffic system using, for example, a rubber tire type vehicle or a floating type vehicle, and more particularly to an increase in train operation density and a reduction in equipment cost.

For example, a train detection method using a check-in / check-out method in order to detect the position of a train using a rubber tire type vehicle or the like is adopted as shown in, for example, Patent Document 1 and the like. Trains operated by this check-in / check-out method have an on- board device and an antenna provided at the top of the train and at the bottom of the tail , and the on- board device sends a check-in signal from the antenna provided at the top of the train to the ground The checkout signal with a frequency different from the check-in signal is always transmitted to the ground from the antenna provided at the rear of the train.

  The ground device has a loop coil and a ground device that are laid along the traveling route for each closed section of the train traveling route and detects a check-in signal and a check-out signal transmitted from the train. A check-in signal and a check-out signal detected by the coil are received to detect whether a train is present in each block section.

In the closing method using loop coils, since the speed of the train is controlled by setting each loop coil section as one block, it is necessary to increase the number of loop coils in order to increase the train operation density. In order to increase the train operation density without increasing the number of loop coils, the train control device disclosed in Patent Document 2 uses train numbering number information and train speed from two trains existing in the range of one loop coil. The ground device transmits a train signal including information to the ground, and the ground device determines a distance between the preceding train and the succeeding train based on the train signal received via the loop coil and generates a stop pattern of the succeeding train to generate the loop coil. It is sent to.
JP-A-5-238390 JP 2005-88788 A

  The train control device disclosed in Patent Document 2 cannot use a fixed block type train control theory that uses a conventional track circuit, and has to develop a new complicated control logic. For this reason, there is a disadvantage that it is not easy to make a transition from the ATC control of the fixed block method that has been used conventionally.

  The present invention improves such disadvantages and increases the operation density of the train without increasing the number of loop coils and accurately controls the train by using the control logic of the well-known fixed block train control method. It aims at providing the train detection device which can do.

The train detection device according to the present invention includes an information transmission path and a ground device which are provided for each predetermined section along a traveling path on which the train travels. Unit, a logic control unit, and a train information transmitter, and the data storage unit uses the position data of the start and end of each information transmission path and the section of each information transmission path as distance information by software. Position data and train length data of the segmented logical block section are stored in advance, and the logical control unit accumulates the travel distance of the train from the starting end of the information transmission path and stores it in the data storage unit Information indicating when the train's leading and trailing positions pass through the beginning and end of each logical block section, indicating when the train is not in the logical block section, and the train head is logical block Ward Information indicating when the vehicle entered, information indicating that the tail of the train entered the logically closed section and the train was in the logically closed section, or information indicating when the head of the train had advanced from the logically closed section, Generate logical block section occupancy information attached to each logical block section sequentially, generate train position information including the generated logical block section occupancy information and train identification information, and send it to the train information transmitter, The train information transmitter constantly transmits the train position information sent from the logic control unit to the ground from the antenna provided at the head of the train, and the ground device is included in the train position information received via the information transmission path. and detecting the position of the head and tail of the train by the train identification information and the logical block sections occupation information.

  In this invention, the data storage unit of the on-board device stores the position data of the start and end of each information transmission path, the position data of the logical block section in which the section of each information transmission path is divided as distance information by software, and the train length. The data is stored in advance, and when the train enters the information transmission path, the logic control unit accumulates the travel distance of the train from the beginning of the information transmission path and stores the position data stored in the data storage unit Train position including logical block section occupancy information and train identification information generated by sequentially generating logical block section occupancy information indicating the timing at which the beginning and tail positions of the train pass through the beginning and end of each logical block section Since the information is transmitted to the ground, the ground device can detect the position of the train based on the transmitted train position information, and performs the train control by developing the conventional closed logic as it is. It is possible.

  In addition, by configuring each information transmission path with a plurality of blocks of logical block sections, each information transmission path can be lengthened, and the number of information transmission paths can be reduced to reduce the equipment cost.

  Furthermore, when the position data of the logical block section stored in the on-board device is lost for some reason, it is detected and controlled on the train ground by the physical block section with the loop coil by each information transmission path as one unit. Therefore, safety can be ensured.

FIG. 1 is a block diagram showing the configuration of the train detection apparatus of the present invention. As shown in the figure, the train detection device is an information transmission path between the on-board device 2 mounted on the train 1, the antennas 3 and 4 provided on the lower side of the head and rear of the train 1, and the on-board device 2. Loop coils 5a, 5b, and 5c laid along the travel path on which the train 1 travels, and ground devices 6a, 6b, and 6c that exchange information with the on-board device 2 through the loop coils 5a, 5b, and 5c, Have

  The loop coils 5a, 5b, and 5c constitute, for example, a plurality of blocks of logical closed sections B1 to B5 that are divided as distance information by software and loop coils 5a and 5c that constitute a single block provided in a station yard or branch section. It has a loop coil 5b. That is, the loop coil 5b uses both the logical block sections B1 to B5 and the physical block section formed by the loop coil 5b itself.

  As shown in the block diagram of FIG. 2, the on-board device 2 includes a data storage unit 7, a logic control unit 8, a check-in signal transmitter 9, a check-out signal transmitter 10, and a control signal receiver 11. The data storage unit 7 stores the position data of the start and end (or section distance, hereinafter referred to as the end) of each loop coil 5a to 5c of the travel path of the train 1, and the logic block of each loop coil 5 constituting a plurality of blocks. The position data of the section and the train length data of the own train 1 are stored in advance and stored. When the train enters the loop coil 5 b in which the position data of the logical block section is stored in the data storage unit 7, the logic control unit 8 integrates the distance from the starting end of the loop coil 5 b by pulse measurement from the speed generator 12. The logical block section occupancy information is sequentially generated, a check-in signal including the generated logical block section occupancy information and train identification information is generated at the carrier frequency f11 or the carrier frequency f12, and sent to the check-in signal transmitter 9 to physically A checkout signal for blocking is always transmitted from the checkout signal transmitter 10.

Logical block section occupancy information the logic control unit 8 is generated, as shown in FIG. 3, a when the train 1 is not Zaisen the logical block section Bi (i = 1~5) "00", the head of the train 1 Becomes "10" when the train enters the logical block section Bi, and the rear end of the train 1 enters the logical block section Bi, and the train 1 becomes "11" in the logical block section Bi, and the top of the train 1 is the logical block section It becomes “01” when advancing from Bi.

The check-in signal transmitter 9 constantly transmits a check-in signal from the antenna 3 provided at the head of the train 1 to the ground, and the check-out signal transmitter 10 transmits a check-out signal from the antenna 4 provided at the rear of the train 1 to the ground. Always send. The control signal receiver 11 receives a signal including speed control information from the antenna 3 provided at the head of the train 1. The logic control unit 8 controls the train speed and the like by a signal including the speed control information received by the control signal receiver 11.

  The ground device 6 includes a transceiver 13, a data storage unit 14, and a logic control unit 15, and the ground devices 6 a to 6 c are connected by a transmission path 16 such as a LAN. The transceiver 13 exchanges information with the on-board device 2 through the loop coil 5 in a frequency multiplexing manner. The data storage unit 14 stores and stores in advance the position data of the logical block section of each loop coil 5 constituting a plurality of blocks. The logic control unit 15 recognizes the position of the train 1 by the train detection logic by software corresponding to the relay circuit that has been performed in the conventional train detection based on the logic block section occupation information of the check-in signal transmitted from the train 1. Train control information is generated from the position of the preceding train recognized by the same method, and the frequency f11 of the check-in signal transmitted from the train 1 is set to the generated train control information at that time. The information specified as the carrier frequency of the check-in signal to be transmitted to the loop coil 5 immediately before the traveling direction is transmitted to the loop coil 5 via the transmission / reception unit 13.

  The process when a train is detected by this train detection device will be described with reference to the train position and logical block section occupation information shown in FIG.

When the train 1 is traveling in a section closed by the loop coil 5a, the control signal receiver 11 of the on-board device 2 receives the train control information sent from the ground device 6a to the loop coil 5a via the antenna 3. To the logic control unit 8. When the train 1 detects that the train 1 has entered the loop coil 5b by the loop coil boundary passage detection, the logic control unit 8 resets the accumulated distance so far and stores the loop coil stored in the data storage unit 7 Based on the position data of the starting end of 5b, the distance by the pulse measurement from the speed generator 12 is integrated to generate logical block section occupation information. That is, when the logic control unit 8 detects that the head of the train 1 has entered, it reads out the position data of the start and end of the loop coil 5b and the position data of the logic block sections B1 to B5 stored in the data storage unit 7, As shown in FIG. 3, logical closed section occupation information “1000000000” indicating that the train 1 has entered the logical closed section B1 is generated. A check-in signal including the generated logical block interval occupation information is generated by a carrier wave having a frequency f11 and sent to the check-in signal transmitter 9. The check-in signal transmitter 9 transmits the sent check-in signal from the antenna 3 to the ground. When the transmission / reception unit 13 of the ground device 6b connected to the loop coil 5b receives the check-in signal via the loop coil 5b, the transmission / reception unit 13 sends the received check-in signal to the logic control unit 15. When the check-in signal is sent, the logic control unit 15 compares the logic block section occupation information included in the check-in signal with the position data of the logic block sections B1 to B5 of the loop coil 5b stored in the data storage unit 14, It is detected that the train 1 has entered the logic block section B1 of the loop coil 5b in the same manner as the train detection logic by the relay circuit that has been performed in the conventional train detection.

  Further, the train 1 travels and the logical control unit 8 of the on-board device confirms that the tail of the train 1 has entered the loop coil 5b from the accumulated distance from the start of the loop coil 5b and the train length data of the train 1. Upon detection, as shown in FIG. 3, logical block section occupation information “11000000” indicating that the train 1 is in the logical block section B1 is generated, and a check-in signal including the generated logical block section occupation information is generated. It transmits to the ground via the check-in signal transmitter 9 and the antenna 3. When the check-in signal is sent, the logic control unit 15 of the ground device 6b detects that the train 1 is present in the logic block section B1 of the loop coil 5b based on the logical block section occupation information “11100000000” included in the check-in signal. .

Further, the train 1 travels and the logic control unit 8 of the on-board device 2 determines the train 1 from the accumulated distance from the start of the loop coil 5b and the position data of the logic block sections B1 to B5 stored in the data storage unit 7. When it is detected that the head has entered the logical block section B2 of the loop coil 5b, as shown in FIG. 3, the logical block section occupation information “011000000000” indicating that the train 1 has entered the logical block section B2 is generated. The generated check-in signal including the logical block section occupation information is transmitted to the ground via the check-in signal transmitter 9 and the antenna 3. When the check-in signal is sent, the logic control unit 15 of the ground device 6b detects that the train 1 is present in the logic block section B2 of the loop coil 6b based on the logic block section occupation information “0110000000” included in the check-in signal. .

  As described above, when the train 1 is traveling in the section of the loop coil 5b, the train detection process based on the logical block section occupation information is sequentially repeated. When the train 1 is in the logical block section B5 of the loop coil 5b and the subsequent train 1a enters the loop coil 5b, the logical block indicates that the subsequent train 1a has entered the logical block section B1 from the subsequent train 1a. A check-in signal of the carrier wave of frequency f12 including the section occupation information “1000000000” is transmitted to the ground. When this check-in signal is sent to the logic control unit 15 of the ground device 6b, the logic control unit 15 uses the carrier frequency f12 of the check-in signal and the logic block section occupation information “11000000” to make the following train 1 perform the logic block of the loop coil 5b. It detects that it has entered the section B1, generates train control information of the subsequent train 1a from the position of the preceding train 1, and transmits the generated train control information of the subsequent train 1a to the loop coil 5 via the transmission / reception unit 13.

  Hereinafter, the logical control unit 8 of the on-board device 2 of each train 1, 1a sequentially detects the position of the train 1, 1a, transmits the logical block section occupancy information in the check-in signal, and transmits it to the ground. The logic control unit 15 detects the position of the train 11a based on the logical block section occupancy information included in the sent check-in signal.

  Thus, the position data of the logic block sections B1 to B5 of the loop coil 5b constituting the plurality of blocks are stored in the data storage section 7 of the on-board device 2, and the logic control section 8 determines the positions of the trains 1 and 1a. Detecting and generating logical block section occupancy information indicating the train position, transmitting a check-in signal including the generated logical block section occupancy information to the ground, and the ground device 6b uses the transmitted check-in signal to detect the trains 1 and 1a. Since the position is detected, the train control can be performed by developing the conventional closed logic as it is.

  In addition, by configuring the loop coil 5b with a plurality of blocks of the logic block sections B1 to B5, the loop coil 5b can be lengthened, and the number of the loop coils 5 can be reduced to reduce the equipment cost.

  Further, when the position data of the logical block sections B1 to B5 stored in the data storage unit 7 of the on-board device 2 is lost for some reason, the train 1 is detected on the ground by the physical block section by the loop coil 5b, Safety can be ensured by controlling.

It is a block diagram which shows the structure of the train detection apparatus of this invention. It is a block diagram which shows the structure of a vehicle-mounted apparatus. It is a schematic diagram which shows logic block area occupation information. It is a figure which shows a train position and logic block section occupation information.

Explanation of symbols

1; train, 2; on-board device, 3, 4; antenna, 5; loop coil, 6; ground device,
7; data storage unit, 8; logic control unit, 9; check-in signal transmitter,
10; Checkout signal transmitter; 11; Control signal receiver; 12; Speed generator;
13; transceiver; 14; data storage unit; 15; logic control unit.

Claims (1)

It has an information transmission path and a ground device that are provided for each predetermined section along the traveling path on the vehicle and the train,
The on-board device has a data storage unit, a logic control unit, and a train information transmitter,
The data storage unit stores in advance the position data of the start and end of each information transmission path, the position data and train length data of the logically closed section obtained by dividing the section of each information transmission path as distance information by software. And
The logic control unit integrates the travel distance of the train from the start end of the information transmission path and collates with the position data stored in the data storage unit, and the position of the train head and tail is in each logical block section. Information indicating the timing of passing through the start and end, information indicating when the train is not in the logically closed section, information indicating when the beginning of the train has entered the logically closed section, and the tail of the train is in the logically closed section Logical block section occupancy information attached to all logical block sections with information indicating that the train has entered the logical block section or information indicating when the head of the train has advanced from the logical block section, respectively. Are generated sequentially, train position information including the generated logical block section occupation information and train identification information is generated and sent to the train information transmitter,
The train information transmitter constantly transmits the train position information sent from the logic control unit to the ground from the antenna provided at the top of the train,
The above-mentioned ground device detects the position of the head and the tail of a train from the above- mentioned logical block section occupation information and the above-mentioned train identification information contained in the train position information received via the above-mentioned information transmission path.

Images