CN106527117A - Full-automatic driving vehicle-on-board controller and train redundancy control system and method - Google Patents

Full-automatic driving vehicle-on-board controller and train redundancy control system and method Download PDF

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Publication number
CN106527117A
CN106527117A CN201611179771.7A CN201611179771A CN106527117A CN 106527117 A CN106527117 A CN 106527117A CN 201611179771 A CN201611179771 A CN 201611179771A CN 106527117 A CN106527117 A CN 106527117A
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train
mvb
interface
vobc
information
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CN106527117B (en
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郜春海
刘波
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Traffic Control Technology TCT Co Ltd
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Traffic Control Technology TCT Co Ltd
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00Safety arrangements
    • G05B9/02Safety arrangements electric
    • G05B9/03Safety arrangements electric with multiple-channel loop, i.e. redundant control systems

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Safety Devices In Control Systems (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

The invention discloses a full-automatic driving vehicle-on-board controller and train redundancy control system and a full-automatic driving vehicle-on-board controller and train redundancy control method. The full-automatic driving vehicle-on-board controller and train redundancy control system comprises a vehicle-on-board controller VOBC and a train control system, wherein the VOBC comprises first multifunctional vehicle bus MVB interface equipment; the train control system comprises second MVB interface equipment and an information acquisition processor; the first MVB interface equipment and the second MVB interface equipment are in communication connection; and the VOBC is in communication connection with the information acquisition processor. The full-automatic driving vehicle-on-board controller and train redundancy control system transmits digital signals through the communication connection between the first MVB interface equipment and the second MVB interface equipment, can effectively avoid the problems that PWM pulses have burrs and the acquisition precision is not high, reduces the influence of electromagnetic interference, solves the problem of the acquisition precision, and reduces spurious triggering of emergency braking; by introducing digital signals, more information can be transmitted between the VOBC and the train control system, thereby being capable of controlling trains from more aspects later; and the safety and usability of train control are increased through redundant processing.

Description

A kind of full-automatic driving Vehicle Controller and train redundancy control system and method
Technical field
The present invention relates to technical field of rail traffic, and in particular to a kind of full-automatic driving Vehicle Controller and train redundancy Control system and method.
Background technology
In subway, train generally provides the mode for configuring end to end, and the two ends of each fixed car group all respectively equip a set of vehicle-mounted Equipment, as shown in Figure 1.In general, the mode of present Vehicle Controller (VOBC) and Train Control takes circuit side connector Formula, according to certain mark and requirement arrangement circuit between Vehicle Controller and train signal point.According to the safety of signal Source can be divided into safe input, Safety output, non-security input, non-security output, their connection principle such as Fig. 2-5 institutes Show.
Controls of the existing VOBC to train can the explanation by taking controls of the VOBC to train traction and braking as an example.ATO is carried Traction is represented respectively with braking for switching value all the way, 0/1.ATO provides pwm signal output all the way, and the output area of the interface is 0 100% dutycycle, 10%-90% dutycycles are range of linearity setting value, and which is equivalent to pull strength/brake force 0 to 100% Setting value.When dutycycle is less than 5% or is more than 95%, it is believed that pwm signal failure, trailer system is without traction and electric braking, system Dynamic system does not apply braking under non-brake operating mode, under damped condition applies full service braking;When pulsewidth is more than 5%, and During less than 10%, it is believed that PWM outputs 10%;When pulsewidth is more than 90% and is less than 95%, it is believed that pwm signal output 90% (5% It is effective status with 95%).When Vehicle Controller needs output braking, output switch parameter 1, pwm signal is then according to brake force Size export different dutycycles.
Control car is carried out by the way of existing VOBC and train information point are directly connected to, between VOBC and train information point Wiring is complicated, high cost.Once circuit is out of joint, difficult, replacing inconvenience is searched, is unfavorable for the maintenance of later stage train, it is practical Property is poor.
In addition, by electromagnetic interference and the precision of acquisition chip, the PWM waveform of the ATO outputs that train is collected has ripple thorn, The unstable of speed is caused, the comfortableness of train is reduced, the fluctuation of speed in addition can also cause unnecessary traction and braking, make Into the waste of the energy.When fluctuating larger, even can cause brake hard sometimes, potential safety hazard be brought to train passenger.
The content of the invention
As prior art has the problems referred to above, the present invention proposes a kind of full-automatic driving Vehicle Controller and train redundancy Control system and method.
In a first aspect, the present invention proposes a kind of full-automatic driving Vehicle Controller and train redundancy control system, including:Car Set controller VOBC and train control system;
The VOBC includes MVB interface equipments;
The train control system includes the 2nd MVB interface equipments and information acquisition processor;
The first MVB interface equipments are communicated to connect with the 2nd MVB interface equipments;
The VOBC is communicated to connect with described information Acquisition Processor;
Wherein, digital signal is transmitted between MVB interface equipments and the 2nd MVB interface equipments;It is described Transmission of analogue signal between VOBC and described information Acquisition Processor;Described information Acquisition Processor leads to for gathering the VOBC The signal of switching value interface or analog signal interface output is crossed, and the information that MVB interfaces are received is compared redundancy process, And perform the control car instruction of the VOBC.
Alternatively, MVB interface equipments include MVB interfaces, and the 2nd MVB interface equipments include second MVB interfaces;
The first MVB interfaces are connected with the 2nd MVB interface communications.
Alternatively, MVB interfaces are communicated to connect by MVB with the 2nd MVB interfaces.
Alternatively, the VOBC includes the switching value interface and the analog signal interface;
Switching value interface and the analog signal interface are communicated to connect with described information Acquisition Processor.
Second aspect, the present invention also propose a kind of full-automatic driving Vehicle Controller and train redundancy control method, including:
Vehicle Controller VOBC passes through switching value interface and analog signal interface gathers the first train information, more than first Function train bus-line MVB interfaces gather the second train information, and first train information and second train information are done The process of first redundancy;
If the result after the first redundancy process is in default first range of error, to first train information Carry out being calculated the first result of calculation, second train information is carried out being calculated the second result of calculation, and will be described First result of calculation is sent to the Information Collecting & Processing of train control system by switching value interface and the analog signal interface Device, second result of calculation is sent by the MVB interfaces to the 2nd MVB interface equipments of train control system;
The train control system carries out the second redundancy process to first result of calculation and second result of calculation;
If the result after the second redundancy process calculates knot according to described first in default second range of error Fruit or second result of calculation are controlled to train.
Alternatively, the Vehicle Controller VOBC passes through switching value interface and analog signal interface gathers the first train letter Breath, gathers the second train information by the first multifunctional train bus MVB interface, specifically includes:
Vehicle Controller VOBC gathers first train information and second train information according to predetermined period.
Alternatively, methods described also includes:
If the result after the first redundancy process gives up the first row outside default first range of error Car information and second train information.
Alternatively, methods described also includes:
If the result after the second redundancy process maintained a upper cycle pair outside default second range of error The control instruction of train.
As shown from the above technical solution, the present invention is communicated with the 2nd MVB interface equipments by MVB interface equipments Connection transmission digital signal, the problems such as can be prevented effectively from the ripple thorn and not high acquisition precision of pwm pulse, reduces electromagnetic interference Affect, solve the problems, such as acquisition precision, reduce the false triggering of brake hard;VOBC and Train Control can be allowed by introducing digital signal More information can be transmitted between system, possibility is provided for the follow-up train that controls in terms of more;Simultaneously by redundancy Reason, increased safety and the availability of control car.
Description of the drawings
In order to be illustrated more clearly that technical scheme of the invention or of the prior art, below will be to embodiment or prior art Needed for description, accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only the present invention's Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to this A little figures obtain other accompanying drawings.
The train configuration connection diagram that Fig. 1 is provided for prior art;
The safe input principle schematic diagram of the signal that Fig. 2 is provided for prior art;
The non-security input principle schematic diagram of the signal that Fig. 3 is provided for prior art;
The Safety output principle schematic diagram of the signal that Fig. 4 is provided for prior art;
The non-security output principle schematic diagram of the signal that Fig. 5 is provided for prior art;
A kind of full-automatic driving Vehicle Controller and train redundancy control system that Fig. 6 is provided for one embodiment of the invention Structural representation;
A kind of full-automatic driving Vehicle Controller and train redundancy control method that Fig. 7 is provided for one embodiment of the invention Schematic flow sheet.
Specific embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is further described.Following examples are only used for more Technical scheme is clearly demonstrated, and can not be limited the scope of the invention with this.
Fig. 6 shows a kind of full-automatic driving Vehicle Controller of the present embodiment offer and the knot of train redundancy control system Structure schematic diagram, including:Vehicle Controller (VOBC) 601 and train control system 602;
The VOBC 601 includes MVB interface equipments 6011;
The train control system 602 includes the 2nd MVB interface equipments 6021 and information acquisition processor 6023;
The first MVB interface equipments 6011 are communicated to connect with the 2nd MVB interface equipments 6021;
Wherein, numeral letter is transmitted between MVB interface equipments 6011 and the 2nd MVB interface equipments 6021 Number;Transmission of analogue signal between the VOBC 601 and described information Acquisition Processor 602;Described information Acquisition Processor 6023 For gathering the signal that the VOBC 601 is exported by switching value interface or analog signal interface, and MVB interfaces 6011 The information for receiving is compared redundancy process, and performs the control car instruction of the VOBC 601.
Specifically, MVB interface equipments 6011 include MVB interfaces 6012, the 2nd MVB interface equipments 6021 include the 2nd MVB interfaces 6022;
The first MVB interfaces 6012 are communicated to connect with the 2nd MVB interfaces 6022.
For example, MVB interfaces 6012 are communicated to connect by MVB with the 2nd MVB interfaces 6022.
By introducing MVB technology, train control system and VOBC set up communication, can allow VOBC and Train Control system More information can be transmitted between system, and is not limited to the transmission of analogue signal in prior art.
The VOBC 601 is communicated to connect with described information Acquisition Processor 6023;
Specifically, the VOBC 601 includes switching value interface 6013 and analog signal interface 6014;
The switching value interface 6013 and analog signal interface 6014 are communicated to connect with described information Acquisition Processor 6023.
The present embodiment with the addition of a kind of new digital signal way of output in existing VOBC analog signal outputs mode, I.e. by digital signal is transmitted between MVB interface equipments 6011 and the 2nd MVB interface equipments 6021, two kinds of outputs are protected The safety of control car, availability are demonstrate,proved.
A kind of full-automatic driving Vehicle Controller that the present embodiment is proposed is with train redundancy control system in prior art On the basis of increased MVB, communication by way of Redundant Control train, while train also need increase MVB interface equipments.
Specifically, what is produced in VOBC originally is exactly digital signal, when in use, has converted thereof into switching signal or mould Intend signal to be controlled;Therefore, in the present embodiment, only need to increase MVB interfaces, set without increasing digital signal generation It is standby.
Specifically, MVB interface equipments (including MVB interface equipments 6011 and the 2nd MVB interface equipments 6021) are used for Communication between Vehicle Controller and train communication system 602;Information acquisition processor 6023 is used to gather VOBC by switch What amount interface 6013 and analog signal interface 6014 (switching value interface and analog signal interface may be collectively referred to as former interface) were exported Signal, and the information received with MVB interfaces 6012 is compared redundancy process, finally performs the control car instruction of VOBC.
The present embodiment transmits digital signal by MVB interface equipments and the 2nd MVB interface equipments communication connection, The problems such as ripple thorn and not high acquisition precision of pwm pulse can be prevented effectively from, reduces the impact of electromagnetic interference, solves acquisition precision Problem, reduces the false triggering of brake hard;Can be allowed by introducing digital signal and can transmit between VOBC and train control system More information, provide possibility for the follow-up train that controls in terms of more;Simultaneously by redundancy process, the peace of control car is increased Full property and availability.
Fig. 7 shows a kind of full-automatic driving Vehicle Controller of the present embodiment offer and the stream of train redundancy control method Journey schematic diagram, methods described include:
S701, Vehicle Controller VOBC pass through switching value interface and analog signal interface gathers the first train information, pass through First multifunctional train bus MVB interface gathers the second train information, and to first train information and second train Information does the process of the first redundancy;
Specifically, VOBC can gather first train information and second train information according to predetermined period.
If the result after the process of S702, first redundancy is in default first range of error, to the first row Car information carries out being calculated the first result of calculation, and second train information is carried out being calculated the second result of calculation, and First result of calculation is sent to the information of train control system by switching value interface and the analog signal interface and is adopted Set processor, second result of calculation is sent by the MVB interfaces to the 2nd MVB interfaces of train control system and is set It is standby;
S703, the train control system carry out the second redundancy to first result of calculation and second result of calculation Process;
If the result after the first redundancy process gives up the first row outside default first range of error Car information and second train information.
Specifically, VOBC ends workflow is as follows:
VOBC first passes through switching value interface and analog signal interface and MVB interfaces gather train information, and handle is adopted The information of collection does redundancy process, if information is gathered in certain range of error unanimously, these information is used for train next The calculating of step action, otherwise gives up.
Then VOBC calculates next step action and result of calculation is exported by processing, and ties output is calculated at VOBC ends Fruit output simultaneously is to switching value interface and analog signal interface and MVB interfaces.
If the result after the process of S704, second redundancy is in default second range of error, according to described first Result of calculation or second result of calculation are controlled to train.
If the result after the second redundancy process maintained a upper cycle pair outside default second range of error The control instruction of train.
Specifically, train end workflow is as follows:
First, train end passes through switching value interface and analog signal interface and the 2nd MVB interfaces gather the letter of VOBC outputs Breath;Then, the information of the two is compared at train end, carries out redundancy process, is held if consistent in certain range of error at once OK, the upper sampling action of maintenance if inconsistent.
The present embodiment is compared to two kinds of outputs by being processed using redundancy twice, if unanimously just continued executing with, is protected Card train safety.
For example, when train will export braking, VOBC gathers train information first, by redundancy process, calculates The information such as present speed, acceleration, position, train status judge that next step operation is to draw, brake, or maintain coasting, if Braking, then export brake signal by switching value interface and analog signal interface and MVB interfaces;Then train receives vehicle-mounted The control command redundancy that controller sends is processed, if consistent in certain range of error, is performed at once.
The present embodiment transmits digital signal by MVB interface equipments and the 2nd MVB interface equipments communication connection, The problems such as ripple thorn and not high acquisition precision of pwm pulse can be prevented effectively from, reduces the impact of electromagnetic interference, solves acquisition precision Problem, reduces the false triggering of brake hard;Can be allowed by introducing digital signal and can transmit between VOBC and train control system More information, provide possibility for the follow-up train that controls in terms of more;Simultaneously by redundancy process, the peace of control car is increased Full property and availability.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can By software plus required general hardware platform mode realizing, naturally it is also possible to by hardware.Based on such understanding, on State the part that technical scheme substantially contributes prior art in other words to embody in the form of software product, should Computer software product can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD etc., including some fingers Order is used so that a computer equipment (can be personal computer, server, or network equipment etc.) performs each enforcement Method described in some parts of example or embodiment.
It should be noted that:Above example only to illustrate technical scheme, rather than a limitation;Although reference Previous embodiment has been described in detail to the present invention, it will be understood by those within the art that:Which still can be right Technical scheme described in foregoing embodiments is modified, or carries out equivalent to which part technical characteristic;And this A little modifications are replaced, and do not make the essence of appropriate technical solution depart from the spirit and model of various embodiments of the present invention technical scheme Enclose.

Claims (8)

1. a kind of full-automatic driving Vehicle Controller and train redundancy control system, it is characterised in that include:Vehicle Controller VOBC and train control system;
The VOBC includes MVB interface equipments;
The train control system includes the 2nd MVB interface equipments and information acquisition processor;
The first MVB interface equipments are communicated to connect with the 2nd MVB interface equipments;
The VOBC is communicated to connect with described information Acquisition Processor;
Wherein, digital signal is transmitted between MVB interface equipments and the 2nd MVB interface equipments;The VOBC with Transmission of analogue signal between described information Acquisition Processor;Described information Acquisition Processor is used to gather the VOBC by switch The signal of interface or analog signal interface output is measured, and the information that MVB interfaces are received is compared redundancy process, and performed The control car instruction of the VOBC.
2. system according to claim 1, it is characterised in that MVB interface equipments include MVB interfaces, The 2nd MVB interface equipments include the 2nd MVB interfaces;
The first MVB interfaces are connected with the 2nd MVB interface communications.
3. system according to claim 2, it is characterised in that MVB interfaces are passed through with the 2nd MVB interfaces MVB is communicated to connect.
4. system according to claim 1, it is characterised in that the VOBC includes the switching value interface and the simulation Signaling interface;
The switching value interface and the analog signal interface are communicated to connect with described information Acquisition Processor.
5. a kind of full-automatic driving Vehicle Controller and train redundancy control method, it is characterised in that include:
Vehicle Controller VOBC passes through switching value interface and analog signal interface gathers the first train information, multi-functional by first Train bus-line MVB interfaces gather the second train information, and do first to first train information and second train information Redundancy process;
If the result after the first redundancy process is carried out to first train information in default first range of error The first result of calculation is calculated, carries out being calculated the second result of calculation to second train information, and by described first Result of calculation is sent to the Information Collecting & Processing of train control system by the switching value interface and the analog signal interface Device, second result of calculation is sent by the MVB interfaces to the 2nd MVB interface equipments of train control system;
The train control system carries out the second redundancy process to first result of calculation and second result of calculation;
If second redundancy process after result in default second range of error, according to first result of calculation or Second result of calculation is controlled to train.
6. method according to claim 5, it is characterised in that the Vehicle Controller VOBC is by the switching value interface The first train information is gathered with the analog signal interface, the second train is gathered by the first multifunctional train bus MVB interface Information, specifically includes:
Vehicle Controller VOBC gathers first train information and second train information according to predetermined period.
7. method according to claim 5, it is characterised in that methods described also includes:
If the result after the first redundancy process is outside default first range of error, give up the first train letter Breath and second train information.
8. method according to claim 7, it is characterised in that methods described also includes:
If the result after the second redundancy process maintained a upper cycle to train outside default second range of error Control instruction.
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