JPH0820337A - Presentation information transmitting device to ground station - Google Patents

Abstract

PURPOSE:To reduce the facility cost of a simplified pattern type ATS device by utilizing the presentation information transmission lines to a ground station of an existing frequency change type ATS device when the simplified pattern type ATS device is installed. CONSTITUTION:A powerless ground station 10 for a simplified pattern type ATS device is connected in parallel with transmission lines A, B transmitting the presentation information to a ground station 5 of an existing ATS device via signal lines A', B', and a selector switch 3 inverting the polarity of the DC voltage applied to the signal lines A, B by a power control unit 2 based on the inputted presentation information is provided. Three presentation information of R, Y, G can be distinctively transmitted to the ground station 10 via the polarity inversion of the DC voltage with no voltage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground information transmission device for transmitting a ground signal of an ATS device to a ground device for transmitting three pieces of R, Y, G display information of a traffic light in front of a train.

[0002]

2. Description of the Related Art Currently, as an ATS device which has been put into practical use, a traffic light in front of a train transmits two pieces of information indicating whether R or not R to the ground element, and the signal is transmitted via the ground element. By transmitting to the upper side of the car, an alarm will be generated in the case of R indication,
Generally, the brake is automatically activated when the driver does not operate the confirmation button within a predetermined time after the alarm is issued. Such an ATS device (hereinafter referred to as A
In the TS-S type device), a control relay is connected to the power supply control unit via a pair of signal lines, and in the case of R indication, the DC voltage is not applied from the power supply unit to the control relay, and the R In cases other than the above, applying a DC voltage from the power supply control unit to the control relay causes the control relay contact to drop or be lifted, and the resonance circuit in the ground element is configured or not configured to move forward to the upper side of the vehicle. The traffic light informs the information indicating whether or not the signal is the R signal.

However, in the case of the ATS-S type device, in a high-density operation section where the number of trains operating is large, the train interval is short and alarms are frequently generated, making it chronic. There are some inadequate points, such as the fact that it depends on the attention of the trainee, or that the warning point is set at the position for the train with the worst braking performance, which limits the improvement of operational efficiency.

In recent years, a pattern type ATS device (hereinafter referred to as an ATS-P type device) in which such a point is improved is being put to practical use. The ATS-P type device has 3 types of R, Y, and G.
The distance information to the stop point, which is equivalent to the display information, is transmitted to the upper side of the car via the ground element, and on the upper side of the car, a brake pattern is created based on the received information, and the train speed is indicated by this brake pattern. The brake is designed to operate automatically when the speed limit is exceeded. According to this ATS-P type device, an alarm is not issued unless the speed limit indicated by the brake pattern is exceeded, and when the speed limit is erroneously exceeded, the brake operates reliably. .

By the way, the ATS-P type device is provided with a code processor and a repeater on a transmission path for transmitting the signal information indicating signal to the ground element, and the code processor receives a control message corresponding to the signal information. A ROM storing digital information of 1 and 0 is provided, and a control message in the ROM corresponding to the input display information is selected, modulated into an FSK signal and transmitted to the repeater. By making it up, information can be surely transmitted from the ground train to the running train side. Therefore, the equipment cost is higher than that of the ATS-S type device.

Under these circumstances, the simple ATS-P, which is superior in security to the ATS-S type device and has a lower equipment cost than the ATS-P type device, which requires no code processor or repeater.
A mold device is desired. As a configuration example of a simple ATS-P type device, the unpowered ground conductor is provided with a plurality of telegrams, external information is given to select telegrams, and electric waves are received by passing trains. At times, a telegram corresponding to the given display information is transmitted to the upper side of the vehicle.

As a method of transmitting the presentation information to the ground node of the simplified ATS-P type device, the above-mentioned ground information transmission route of the ATS-S type device from the viewpoint of effective use of existing equipment. Can be used.

[0008]

[Problems to be Solved by the Invention] However, the ATS
-In the case of the ground information transmission line of the S-type device, a DC voltage is applied to the signal line at times other than the R indication, and no voltage is applied at the R indication, and two information transmission modes. Has become. For this reason, when used in a simplified ATS-P type device that needs to transmit three pieces of R, Y, and G presentation information to the ground terminal, it cannot be used as it is.

The present invention has been made in view of the above circumstances, and when installing a simplified ATS-P type apparatus, the existing A
It is an object of the present invention to provide a display information transmission device for a ground station, which makes it possible to use a display information transmission path for a ground station of a TS-S type device.

[0010]

Therefore, according to the first aspect of the present invention, the ATS unit is connected to the ground element, and the ground element which transmits the three R, Y, G indication information of the traffic signal in front of the train is transmitted to the ground element. A signal transmitting apparatus for displaying information, wherein voltage is not applied to a pair of signal lines connected to the ground element at the time of R displaying, and the pair of signal at the time of Y and G displaying is based on the signal information of the traffic light. A power supply control unit for applying a DC voltage to the signal line is provided, and is applied to the pair of signal lines between the ground element and the power supply control unit at the time of Y and G, respectively. A configuration is provided in which polarity reversing means for reversing the polarity of the DC voltage is interposed, and the three display information of R, Y, and G are transmitted to the ground element according to the voltage of opposite polarity of the signal line and the three states of no voltage. did.

According to the second aspect of the present invention, the ground element is a non-powered ground element, a power wave receiving coil for receiving a power wave from the vehicle, and power received by the power wave receiving coil. Voltage generating means for generating a voltage based on waves, a transmission coil for transmitting a preset control message to the vehicle,
Three message storage means for respectively storing control messages to the vehicle upper side corresponding to the three display information, and a message corresponding to the display information input via a signal line when a voltage is generated from the voltage generating means. It is configured to include a telegram transmission control unit that selects the storage unit and controls the transmission of the control telegram.

[0012]

According to the configuration of the invention described in claim 1, for example, the voltage applied to the signal line is set to no at the time of the R indication, and in the case of the Y indication and the G indication, a pair is provided by the power supply control unit. The polarity of the DC voltage applied to the signal line of
The polarities are inverted by the polarity inversion means and input to the ground element. This makes it possible to distinguish the three pieces of R, Y, and G presentation information and transmit them to the ground child.

Further, in the ground element according to claim 2,
When the R, Y, and G indication information is respectively input, by selecting the telegram storage means that stores the control telegram corresponding to the input indication information from the three telegram storage means, the front traffic signal on the vehicle upper side is selected. It is possible to transmit the presentation information of.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of an embodiment of a display information transmission device to the ground according to the present invention. In FIG. 1, the signal control unit 1 includes a power supply control unit 2 and a changeover switch 3 as a polarity reversing means. The power supply control unit 2
Generates no voltage when the R signal is present, and generates a DC voltage when the signal is not the R signal (Y and G signals) based on the signal information of the input signal. , B. The changeover switch 3 is provided on the signal lines A and B, and has two interlocking switch sections 3A and 3B, and each of the switch sections 3A and 3B has three contact points a, b, and c, respectively. Based on the presentation information, the switch units 3A and 3B use the presentation information to locate the contact a at the time of G presentation, the position of the contact b at the time of Y presentation, and the central contact c at the time of R presentation. Is set to the position.

The signal lines A and B are existing ones connected to the control relay 5 for controlling the ground element 4 of the ATS-S type device. Reference numeral 5A denotes a contact of the control relay 5, which controls opening / closing of the resonance circuit in the ground element 4. For the signal lines A and B, a simple type A is provided between the changeover switch 3 and the control relay 5.
The unpowered grounding element 10 for the TS-P type device has a signal line A ',
They are electrically connected in parallel by B '.

The details of the non-powered ground element 10 are shown in FIG.
The unpowered ground element 10 according to the present embodiment includes a power wave receiving coil 11 that receives a power wave (for example, 245 KHz) from a vehicle, and a DC voltage of 5 V _P1 based on the power wave received by the power wave receiving coil 11. , 5V _P2 respectively, voltage adjusting circuits 12 and 13 as voltage generating means, a transmission coil 14 for transmitting a preset control telegram signal (for example, 1.708 MHz ± 32 KHz) to the vehicle, and the control telegram. Memory 15 to 17 for storing three electronic messages as electronic message storage means for storing
And a control unit 18 as a telegram transmission control means for controlling transmission of each control telegram set in the memories 15 to 17, and a control telegram given from the outside by a contactless optical signal as an information transmission medium can be received. For example, a data receiving section 19 including a light receiving element such as a pin photodiode, a modem 21 that modulates a control message including digital information into an FSK modulated signal by an oscillation signal from an oscillator 20, and an amplifier 22.
And the DC voltage (24
V _G ), each of the power converters 23 and 24 for converting the voltage V _G ) into a predetermined voltage value (5 V _G , 5 V _Y ), and a memory 17 when R is displayed.
And an OR circuit 25 for setting the chip enable terminal of the L level to L level, and these are fixed by resin molding.

The memories 15 to 17 are non-volatile storage elements that are electrically writable and erasable, such as EEPRO.
When the control message is input via the data receiving unit 19, the control message received by the control unit 18 can be written. Therefore, the control unit 18
It also has a control message writing function. Also, the memory
The control message 15 can read the control message when the G message is displayed, the memory 16 can read the control message when the Y message is displayed, and the memory 17 can read the control message when the R message is displayed.

Next, the operation of this embodiment will be described.
A case where the front traffic light is G-display will be described. In this case, when the G indication information is determined in the signal control unit 1, a DC voltage is applied from the power supply control unit 2 to the signal lines A and B, and at the same time, each switch section 3 of the changeover switch 3 is applied.
A and 3B are connected to the position of the contact a. As a result, the signal lines A and A'sides are positive poles, and the signal lines B and B'sides are negative poles.

Therefore, in the ground element 10, the voltage 5V _G is generated from the power converter 23 side by the rectifying action of the six diodes D1 to D6, and the memory 15 storing the control message corresponding to the G indication. Only becomes active. When the train passes over the ground element 10, the power wave receiving coil 11 receives the power wave from the upper side of the vehicle, the voltage 5V _P2 is generated from the voltage adjusting circuit 13, and the controller 18, the oscillator 20, the modem 21, and the amplifier 22. The control message is read out from the memory 15 by the control unit 18, modulated by the modem 21, amplified by the amplifier 22, and transmitted from the transmission coil 14 to the vehicle upper side. On the vehicle upper side, a brake pattern of the train is created based on the transmitted control message for G indication, and train operation control is executed based on this brake pattern to ensure safe driving.

A case where the front traffic light is Y-display will be described. In this case, a DC voltage is applied from the power supply control unit 2 to the signal lines A and B, and the switch portions 3A and 3B of the changeover switch 3 are connected to the contact b. As a result, the signal lines A and A ′ have negative poles and the signal lines B and B ′ have positive poles, and the polarity of the DC voltage in the signal line is reversed from that in the case of G indication.

Therefore, in the ground element 10, the voltage 5V _Y is generated from the power converter 24 side by the rectifying action of the six diodes D1 to D6, and the memory 16 which stores the control message corresponding to the Y indication. Only becomes active. When the train passes over the ground element 10 in this state, the voltage 5V _P2 is generated from the voltage adjusting circuit 13 due to the reception of the electric power wave from the upper side of the vehicle as in the case of the G indication, and the control message in the memory 16 is transmitted. Is read out and transmitted from the transmission coil 14 to the upper side of the vehicle.
A brake pattern of the train is created based on the transmitted control message for Y indication, and train operation control is executed based on this brake pattern.

Next, a case where the front traffic light is R-indicating will be described. In this case, no DC voltage is applied from the power supply control unit 2 to the signal lines A and B, and the switch parts 3A and 3B of the changeover switch 3 are connected to the contact points c so that the power supply control unit 2 and the ground wire 10 are connected. And are electrically disconnected, and no DC voltage is input to the ground element 10. And power converter
No voltage is generated from 23 and 24, and the memories 15 and 16 are not activated. On the other hand, one input of the OR circuit 25 becomes L level, and the other input is always L level except when writing data.
Since it is at the level, the L level output from the OR circuit 25 is input to the chip enable terminal of the memory 17. In this state, when the train passes over the ground element 10, the memory 17 is activated by the application of the voltage 5V _P2 generated from the voltage adjusting circuit 13, and the control unit 18 stores the R indication for the R indication. The control telegram is read out and transmitted from the transmission coil 14 to the upper side of the vehicle. On the upper side of the vehicle, a train brake pattern is created based on the transmitted control message for R indication,
Train operation control based on this brake pattern is executed.

According to this structure, the signal lines of the existing ATS-S type device that uses only two pieces of R-Y indication information are used to make R, Y, and G indication information. It is possible to install a simple ATS-P type device using the. Therefore, a simple ATS-P type device which does not require a code processor or a repeater and has a low equipment cost as compared with the conventional ATS-P type device can be installed at a lower cost.

The control relay of the ATS-S type device includes
Since the non-polar relay is used, even if the simplified ATS-P type devices are installed side by side to invert the voltage polarity of the signal line, the existing ATS-S type devices are not affected at all, It can be operated as usual. Further, the ground element 10 of the present embodiment has a configuration capable of rewriting the control message in the memories 15-17.

That is, a power wave is received from the outside by a power wave receiving coil.
In the state given to 11, if the control message information is input to the data receiving unit 19 by using light or the like, when the control unit 18 confirms that the data is normal, it is input to the corresponding memory for storing the control message. The generated control message can be written in place of the already stored control message. Therefore, even when the installation location of the ground element 10 is changed, it is not necessary to manufacture a new non-powered ground element, and the ground element can be effectively used.

[0026]

As described above, according to the first aspect of the invention, the polarity of the DC voltage applied to the pair of signal lines is inverted to distinguish the Y display information and the G display information. Therefore, the existing pattern-changing ATS equipment ground equipment can be used to transmit the three pieces of R, Y, and G display information to the ground element, so that the simplified pattern-type ATS equipment can be manufactured at low cost. It becomes possible to install equipment. Further, the existing variable-frequency ATS device can be used as it is.

According to the second aspect of the invention, R,
When Y and G display information are respectively input, by selecting the message storage means storing the control message corresponding to the input display information from among the three message storage means, the display of the traffic light in front of the vehicle is selected. Indication information can be sent.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of a display information transmission device to a ground device according to the present invention.

FIG. 2 is a block diagram of a ground element applied to the above embodiment

[Explanation of symbols]

 2 Power supply control unit 3 Changeover switch 10 Ground element 15 to 17 Memory A, A ', B, B' Signal line

Claims (2)

[Claims] Claim: What is claimed is: 1. A ground information transmission device for transmitting to the ground station of an ATS device, which transmits three R, Y, G signal information of a traffic signal in front of a train. On the basis of the above, there is a power supply control unit that does not apply a voltage to the pair of signal lines connected to the ground element when R is shown, and applies a DC voltage to the pair of signal lines when Y and G is shown, Polarity inverting means for inverting the polarity of the DC voltage applied to the signal line between the pair of signal lines between the ground element and the power supply control unit at the time of Y and G is inserted, A device for transmitting information to the ground element, characterized in that three signals R, Y and G are transmitted to the ground element according to three states of the signal line having opposite polarities and three states of no voltage. . 2. The ground element is an unpowered ground element, and generates a voltage based on a power wave receiving coil that receives a power wave from the vehicle and a power wave received by the power wave receiving coil. Voltage generating means, a transmitting coil for transmitting a preset control message to the vehicle, three message storing means for respectively storing control messages to the vehicle upper side corresponding to the three display information, and the voltage generating 2. The ground wire according to claim 1, further comprising: a telegram transmission control means for controlling a transmission of a control telegram by selecting a telegram storage means corresponding to the display information input via a signal line when a voltage is generated from the means. Information transmission device to the.