CN109388085A - From the computer platform and its application method of wheel movement special equipment - Google Patents
From the computer platform and its application method of wheel movement special equipment Download PDFInfo
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- CN109388085A CN109388085A CN201811109528.7A CN201811109528A CN109388085A CN 109388085 A CN109388085 A CN 109388085A CN 201811109528 A CN201811109528 A CN 201811109528A CN 109388085 A CN109388085 A CN 109388085A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
- G05B19/0425—Safety, monitoring
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
- G06F15/163—Interprocessor communication
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- Software Systems (AREA)
- Automation & Control Theory (AREA)
- Quality & Reliability (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of from the computer platform and its application method of taking turns movement special equipment, including host and 2 personal-machine interface cells D MI；The host includes the first system A, second system B and communication extension unit；Each user-machine interface cells D MI includes the first display control unit, the second display control unit and switch unit；Switch unit is electrically connected with the first system A, second system B, communication extension unit, the first display control unit and the second display control unit respectively, and communication extension unit is electrically connected with the first system A and second system B respectively.The invention has the following beneficial effects: the first system A of the invention and second system B hot backup redundancies each other, so that the safety of vehicle track running monitoring device reaches the security level of SIL4；The present invention improves reliability, availability, maintainability, safety and the scalability of railcar operation control equipment.
Description
Technical field
The present invention relates to from the operation monitoring technology field for taking turns movement special equipment, reach more particularly, to a kind of safety
The security level of SIL4, at the same can be improved railcar operation control equipment reliability, availability, maintainability, safety and
The computer platform and its application method from wheel movement special equipment of scalability.
Background technique
Mainly have a car LKJ system in China railways locomotive operation monitor system, the ATP system of high-speed rail and be mounted on from
Take turns the GYK operation monitoring system on movement special equipment.Promotion with China's CTCS system to railway operation safety requirements,
Middle ATP, LKJ train control system is full the safety certification of sufficient SIL4, but takes turns the GYK operation monitoring system of movement special equipment certainly
Still two are not taken to take second-class safety measure yet without redundancy backup using standalone architecture；Cab signal unit does not have itself yet
There is redundancy, is also not carried out the reception of two-way coil information；This all limits the RAMS requirement of its core, and safety is not achieved
The security level of SIL4, it is difficult to meet railway development to the requirements at the higher level of safety.
Summary of the invention
The present invention in order to overcome it is existing in the prior art from wheel movement special equipment GYK operation monitoring system safety
The security level of SIL4 is not achieved in property, it is difficult to meet railway development to the deficiency of the requirements at the higher level of safety, provide a kind of safety
Property reaches the security level of SIL4, while can be improved railcar operation control equipment reliability, availability, maintainability, peace
The computer platform and its application method from wheel movement special equipment of full property and scalability.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of computer platform from wheel movement special equipment, including host and 2 personal-machine interface cells D MI；Institute
Stating host includes the first system A, second system B and communication extension unit；Each user-machine interface cells D MI includes first
Display control unit, the second display control unit and switch unit；Switch unit respectively with the first system A, second system B, logical
Believe expanding element, the first display control unit and the second display control unit electrical connection, communication extension unit respectively with the first system
The A and second system B that unites is electrically connected.
The first system A and second system B of the invention hot backup redundancy each other, forms the redundancy frame of safety computer platform
Structure realizes internal and external communication by communication extension unit；Two safety computer platform is taken to solve original by two
Have railcar pipe pressure, speed and operating condition that can only carry out the limitation of single acquisition, improve the safety of system, reliability, can
With property and maintainability.
Preferably, the first system A includes power panel, the first master control borad, the second master control borad, the first output board and
One cab signal plate；Power panel respectively with the first master control borad, the second master control borad, the first output board, the first cab signal plate and logical
Believe expanding element electrical connection, the first master control borad, the second master control borad and the first cab signal plate are electrically connected with communication extension unit,
First master control borad and the second master control borad are electrically connected with the first output board.
Preferably, first master control borad includes first processor, the first input unit, the first output unit, communication
Interface module, the first synchronous interface module, power supply monitoring module and first memory；First processor is single with the first input respectively
Member, the first output unit, communication interface modules, the first synchronous interface module, power supply monitoring module and first memory electrical connection,
First synchronous interface module is electrically connected with the second master control borad, and communication interface modules is electrically connected with the first cab signal plate, and first is defeated
Enter unit and the first output unit is electrically connected with the first output board.
Preferably, first output board includes the first execution unit and the second execution unit；First execution unit with
The electrical connection of first master control borad, the second execution unit are electrically connected with the second master control borad.
Preferably, the first cab signal plate includes the first CPU, the 2nd CPU, the first signal conditioning module, second
Signal conditioning module, 2 communication interface modules, 2 data exchange modules, 2 synchronised clock modules, 2 power supply monitoring modules
And relay；First CPU is electrically connected with the first signal conditioning module and power supply monitoring module respectively, and the first CPU passes through each logical
Letter interface module, each data exchange module and each synchronised clock module are electrically connected with the 2nd CPU, and the 2nd CPU is respectively with the
Binary signal conditioning module and the electrical connection of power supply monitoring module, relay are improved with the first signal conditioning module and second signal respectively
Module electrical connection.
Preferably, first input unit include speed acquisition interface, pipe pressure acquisition interface, working condition acquiring interface and
Detect interface；Speed acquisition interface, pipe pressure acquisition interface, working condition acquiring interface and detection interface are electrically connected with first processor
It connects, detection interface is electrically connected with the first output board.
Preferably, communication extension unit includes CAN communication interface, high speed bus interface, LAN communication interface, 422 communications
Interface and data storage.
A kind of pipe pressure signal acquisition method of the computer platform from wheel movement special equipment, further includes first pressure sensing
Device and second pressure sensor；First pressure sensor and second pressure sensor are electrically connected with pipe pressure acquisition interface；Including
Following steps:
Threshold range [the Δ P that the first pipe presses the pressure difference of P1 and the second pipe pressure P2 is arranged in (8-1)min,ΔPmax]；
(8-2) first master control borad acquires the first pipe by first pressure sensor and presses P1, and the second master control borad passes through the second pressure
Force snesor acquires the second pipe and presses P2；
(8-3) utilizes formula Δ P=| P1-P2 | the pressure differential deltap P for calculating the first pipe pressure P1 and the second pipe pressure P2, and if Δ
Pmin≤ΔP≤ΔPmax, the first pipe presses P1 and the second pipe pressure P2 is equal to the first pipe pressure P1 and the second pipe presses the average value of P2, i.e.,
If Δ P > Δ PmaxOr Δ P < Δ Pmin, the first pipe pressure P1 and the second pipe pressure P2 are equal to the first pipe pressure P1 and the
Two pipes press the maximum value of P2, i.e. P1=P2=max { P1, P2 }；
(8-4) compares the first pipe pressure P1 and the second pipe pressure P2, if P1 ≠ P2, shows that pipe presses error in data, the first master control
Plate does not send data to user-machine interface cells D MI；If P1=P2, the first master control borad is to user-machine interface cells D MI
Send data.
A kind of speed signal acquisition method of the computer platform from wheel movement special equipment, further includes First Speed sensing
Device and second speed sensor；First Speed sensor and second speed sensor are electrically connected with speed acquisition interface；Including
Following steps:
Threshold range [the Δ V of (9-1) setting speed differencemin,ΔVmax]；
(9-2) first master control borad acquires First Speed V1 by First Speed sensor, is adopted by second speed sensor
Collect second speed V2；Second master control borad acquires third speed V1 ', second speed sensor acquisition the by First Speed sensor
Four speed V2 '；
(9-3) chooses the larger value of First Speed V1 and second speed V2 as the 5th speed V3, i.e. V3=max V1,
V2}；The larger value of third speed V1 ' and fourth speed V2 ' is chosen as the 6th speed V4, i.e. V4=max V1 ', V2 ' }；
(9-4) utilizes formula Δ V=| V3-V4 | the speed difference Δ V for calculating the 5th speed V3 and the 6th speed V4, and if Δ
Vmin≤ΔV≤ΔVmax, the 5th speed V3 and the 6th speed V4 be equal to the maximum value of the 5th speed V3 and the 6th speed V4, i.e.,
V3=V4=max { V3, V4 }；
If Δ V > Δ VmaxOr Δ V < Δ Vmin, implement emergency braking.
Therefore, the invention has the following beneficial effects: the first system A of the invention and second system B hot backup redundancy each other,
So that the safety of vehicle track running monitoring device reaches the security level of SIL4；The present invention improves vehicle track running control and sets
Standby reliability, availability, maintainability, safety and scalability.
Detailed description of the invention
Fig. 1 is a kind of system block diagram of the invention；
Fig. 2 is a kind of block diagram of the first master control borad of the invention；
Fig. 3 is a kind of block diagram of the first cab signal plate of the invention；
Fig. 4 is a kind of schematic diagram of the embodiment of the present invention 1；
Fig. 5 is a kind of schematic diagram of the embodiment of the present invention 2；
Fig. 6 is a kind of schematic diagram of the embodiment of the present invention 3；
Fig. 7 is a kind of schematic diagram of the embodiment of the present invention 5.
In figure: host 1, user-machine interface cells D MI2, speed acquisition interface 3, pipe press acquisition interface 4, working condition acquiring
Interface 5, first pressure sensor 6, second pressure sensor 7, First Speed sensor 8, second speed sensor 9, detection connect
Mouth 10, the first system A11, second system B12, communication extension unit 13, the first display control unit 21, the second display control list
First 22, switch unit 23, power panel 111, the first master control borad 112, the second master control borad 113, the first output board 114, the first locomotive
Signal plate 115, first processor 1121, the first input unit 1122, the first output unit 1123, communication interface modules 1124,
First synchronous interface module 1125, power supply monitoring module 1126, first memory 1127, the first CPU1151, the 2nd CPU1152,
First signal conditioning module 1153, second signal conditioning module 1154, communication interface modules 1155, data exchange module 1156,
Synchronised clock module 1157, relay 1158.
Specific embodiment
The present invention is described further with specific embodiment with reference to the accompanying drawing:
Embodiment 1
Embodiment 1 as shown in Figure 1 is a kind of from the computer platform for taking turns movement special equipment, including host 1 and 2 people
Machine interface cells D MI2；The host includes the first system A11, second system B12 and communication extension unit 13；First system
The A that unites includes power panel 111, the first master control borad 112, the second master control borad 113, the first output board 114 and the first cab signal plate
115；First output board includes the first execution unit and the second execution unit；Each user-machine interface cells D MI includes
One display control unit 21, the second display control unit 22 and switch unit 23；Switch unit respectively with the first system A, second
System B, communication extension unit, the first display control unit and the electrical connection of the second display control unit, communication extension unit difference
It is electrically connected with the first system A and second system B；Power panel respectively with the first master control borad, the second master control borad, the first output board,
One cab signal plate and the electrical connection of communication extension unit, the first master control borad, the second master control borad and the first cab signal plate with it is logical
Believe expanding element electrical connection, the first master control borad and the second master control borad are electrically connected with the first output board；First execution unit and
The electrical connection of one master control borad, the second execution unit are electrically connected with the second master control borad.
Wherein, the first system A and second system B internal structure having the same, each other hot backup redundancy, second system B packet
Include power panel, third master control borad, the 4th master control borad, the second output board and the second cab signal plate；Power panel respectively with third master
Control plate, the 4th master control borad, the second output board, the second cab signal plate and the electrical connection of communication extension unit, third master control borad, the 4th
Master control borad and the second cab signal plate are electrically connected with communication extension unit, and third master control borad and the 4th master control borad are defeated with second
Ejecting plate electrical connection；First display control unit and the second display control unit internal structure having the same, each other stand-by redundancy；
Communication extension unit includes CAN communication interface, high speed bus interface, LAN communication interface, 422 communication interfaces and data storage,
Power panel is communicated by CAN communication interface, and the first system A and second system B are communicated by high speed bus interface；The
The circuit of one execution unit and the second execution unit is identical, and the first execution unit executes the control instruction of the first master control borad output,
Second execution unit executes the control instruction of the second master control borad output, and the first execution unit and the second execution unit, which use, serially may be used
It is designed by sexual norm, only when the first master control borad and the second master control borad all export identical control instruction, the first output board ability
Execute control output.
As shown in Fig. 2, the first master control borad includes first processor 1121, the first input unit 1122, the first output unit
1123, communication interface modules 1124, the first synchronous interface module 1125, power supply monitoring module 1126 and first memory 1127；
First input unit includes speed acquisition interface 3, pipe pressure acquisition interface 4, working condition acquiring interface 5 and detection interface 10；；The
One output unit includes pop valve control interface, common valve control interface, pressure retaining valve control interface and flame-out control interface；First
Processor respectively with the first input unit, the first output unit, communication interface modules, the first synchronous interface module, power supply monitoring
Module and first memory electrical connection, the first synchronous interface module are electrically connected with the second master control borad, communication interface modules and first
The electrical connection of cab signal plate, the first input unit and the first output unit are electrically connected with the first output board；Speed acquisition interface,
Pipe pressure acquisition interface, working condition acquiring interface and detection interface are electrically connected with first processor, detect interface and the first output board
Electrical connection；Pop valve control interface, common valve control interface, pressure retaining valve control interface and flame-out control interface are respectively with first
Processor and the electrical connection of the first output board.
In addition, the internal circuit of the second master control borad and the first master control borad is identical, the second master control borad and the first master control borad are common
Acquire speed, pipe pressure and work information.
As shown in figure 3, the first cab signal plate includes the first CPU1151, the 2nd CPU1152, the first signal conditioning module
1153,1156,2 synchronised clocks of the communication interface modules 1155,2 of second signal conditioning module 1154,2 data exchange module
1157,2 power supply monitoring modules of module and relay 1158；First CPU respectively with the first signal conditioning module and power supply monitoring
Module electrical connection, the first CPU pass through each communication interface modules, each data exchange module and each synchronised clock module and the
Two CPU electrical connection, the 2nd CPU is electrically connected with second signal conditioning module and power supply monitoring module respectively, and relay is respectively with the
One signal conditioning module and the electrical connection of second signal conditioning module.
Wherein, No. 4 machine sensor coil signals are inputted to the first cab signal plate by relay, is machine sensor coil respectively
Group 11, machine sensor coil group 12, machine sensor coil group 21 and machine sensor coil group 22, the shape that the first cab signal plate passes through operating condition
State switching machine sensor coil group, dual processors acquire machine sensor coil signal decode simultaneously.
As shown in figure 4, a kind of pipe of the computer platform from wheel movement special equipment presses signal acquisition method, it further include the
One pressure sensor 6 and second pressure sensor 7；First pressure sensor and second pressure sensor press acquisition interface with pipe
Electrical connection；Include the following steps:
Threshold range [the Δ P that the first pipe presses the pressure difference of P1 and the second pipe pressure P2 is arranged in (8-1)min,ΔPmax]；
(8-2) first master control borad acquires the first pipe by first pressure sensor and presses P1, and the second master control borad passes through the second pressure
Force snesor acquires the second pipe and presses P2；
(8-3) utilizes formula Δ P=| P1-P2 | the pressure differential deltap P for calculating the first pipe pressure P1 and the second pipe pressure P2, and if Δ
Pmin≤ΔP≤ΔPmax, the first pipe presses P1 and the second pipe pressure P2 is equal to the first pipe pressure P1 and the second pipe presses the average value of P2, i.e.,
If Δ P > Δ PmaxOr Δ P < Δ Pmin, the first pipe pressure P1 and the second pipe pressure P2 are equal to the first pipe pressure P1 and the
Two pipes press the maximum value of P2, i.e. P1=P2=max { P1, P2 }；
(8-4) compares the first pipe pressure P1 and the second pipe pressure P2, if P1 ≠ P2, shows that pipe presses error in data, the first master control
Plate does not send data to user-machine interface cells D MI；If P1=P2, the first master control borad is to user-machine interface cells D MI
Send data.
Embodiment 2
Embodiment 2 includes all structures of embodiment 1, as shown in figure 5, further including third pressure sensor, the first pipe pressure
Isolated amplifier, the second pipe pressure isolated amplifier, third signal conditioning module and fourth signal conditioning module；Third pressure sensing
Device presses isolated amplifier and the second pipe pressure isolated amplifier to be electrically connected with the first pipe respectively, and third signal conditioning module is respectively with the
One pipe press isolated amplifier and the first master control borad electrical connection, fourth signal conditioning module respectively with the second pipe press isolated amplifier and
The electrical connection of third master control borad；Only illustrate that pipe presses signal acquisition method in Fig. 5 by taking third pressure sensor as an example；It further include the 4th pressure
Force snesor, the pipe pressure signal acquisition method and the pipe of third pressure sensor of the 4th pressure sensor press signal acquisition method phase
Together；Third pressure sensor and the 4th pressure sensor are all made of current mode pressure sensor.
Embodiment 2 is a kind of from the computer platform the first system A and second system B share pipe pressure that take turns movement special equipment
The method of signal acquisition: the first master control borad and third master control borad share the collected pipe of third pressure sensor and press signal；Second
Master control borad and the 4th master control borad share the collected pipe of the 4th pressure sensor and press signal；When the first system A and second system B all
When normal work, the first pipe pressure isolated amplifier of the first master control borad and the second pipe pressure isolated amplifier of third master control borad pass through
The mode of concatenation forms current closed-loop, and the common current signal for acquiring third pressure sensor passes through third signal conditioning module
Become pipe pressure signal with fourth signal conditioning module；As the first system A or only one system worked well of second system B,
The current signal of third pressure sensor can flow back to form closed loop by bypass diode, not influence third pressure sensor letter
Number normal acquisition；The pipe pressure signal acquisition method of 4th pressure sensor and the pipe of third pressure sensor press signal acquisition side
Method is the same.
Embodiment 3
Embodiment 3 includes all structures of embodiment 1, as shown in fig. 6, embodiment 3 is a kind of from wheel movement special equipment
Computer platform speed signal acquisition method, further include First Speed sensor 8 and second speed sensor 9；First speed
Degree sensor and second speed sensor are electrically connected with speed acquisition interface；Include the following steps:
Threshold range [the Δ V of (9-1) setting speed differencemin,ΔVmax]；
(9-2) first master control borad acquires First Speed V1 by First Speed sensor, is adopted by second speed sensor
Collect second speed V2；Second master control borad acquires third speed V1 ', second speed sensor acquisition the by First Speed sensor
Four speed V2 '；
(9-3) chooses the larger value of First Speed V1 and second speed V2 as the 5th speed V3, i.e. V3=max V1,
V2}；The larger value of third speed V1 ' and fourth speed V2 ' is chosen as the 6th speed V4, i.e. V4=max V1 ', V2 ' }；
(9-4) utilizes formula Δ V=| V3-V4 | the speed difference Δ V for calculating the 5th speed V3 and the 6th speed V4, and if Δ
Vmin≤ΔV≤ΔVmax, the 5th speed V3 and the 6th speed V4 be equal to the maximum value of the 5th speed V3 and the 6th speed V4, i.e.,
V3=V4=max { V3, V4 }；
If Δ V > Δ VmaxOr Δ V < Δ Vmin, implement emergency braking.
Embodiment 4
Embodiment 4 includes all structures of embodiment 1, and embodiment 4 is that a kind of computer from wheel movement special equipment is flat
The working condition acquiring method of platform: operating condition belongs to switching value, when the first master control borad and the collected work condition state of the second master control borad occur
When inconsistent, output state error or insincere, so work condition state two takes two comparisons must be completely the same, if work condition state
Two take two to compare, and appearance is inconsistent, and data guiding safety, work condition state does not update, and maintains old data；If work condition state two
Two comparisons continuous 3 times inconsistent, expression system failures are taken, system guiding safety implements emergency braking.
Embodiment 5
Embodiment 5 includes all structures of embodiment 1, as shown in fig. 7, further including solenoid valve；First execution unit includes
First safety relay and first state observation circuit, the second execution unit include the second safety relay and the second status monitoring
Circuit；Second safety relay is electrically connected with the first safety relay and solenoid valve respectively；Embodiment 5 is a kind of special from wheel operating
The first system A of the computer platform of kind of equipment takes two methods for the hardware two of output control: the first output board while receiving
The control signal of first master control borad and the output of the second master control borad, when the control signal that the first master control borad and the second master control borad receive
When consistent, the output state of the first execution unit and the second execution unit is consistent, and the second execution unit is executed to the defeated of solenoid valve
Control action out；If the control signal that the first master control borad and the second master control borad receive is inconsistent, the first execution unit and
The state of the output of two execution units can be inconsistent, and output board does not export control action；When the first master control borad and the second master control borad
When detecting that respective output state is inconsistent, output control is completed automatically into isolation according to guiding secure side principle
Hardware two takes two functions.
It should be understood that this embodiment is only used to illustrate the invention but not to limit the scope of the invention.In addition, it should also be understood that,
After having read the content of the invention lectured, those skilled in the art can make various modifications or changes to the present invention, these etc.
Valence form is also fallen within the scope of the appended claims of the present application.
Claims (9)
1. a kind of from the computer platform for taking turns movement special equipment, which is characterized in that connect including host (1) and 2 personal-machine interfaces
Mouth cells D MI (2)；The host includes the first system A (11), second system B (12) and communication extension unit (13)；Each individual
Machine interface cells D MI includes the first display control unit (21), the second display control unit (22) and switch unit
(23)；Switch unit is aobvious with the first system A, second system B, communication extension unit, the first display control unit and second respectively
Show that control unit is electrically connected, communication extension unit is electrically connected with the first system A and second system B respectively.
2. according to claim 1 from the computer platform for taking turns movement special equipment, which is characterized in that the first system
A includes power panel (111), the first master control borad (112), the second master control borad (113), the first output board (114) and the first locomotive letter
Number plate (115)；Power panel respectively with the first master control borad, the second master control borad, the first output board, the first cab signal plate and communicate expansion
Unit electrical connection is opened up, the first master control borad, the second master control borad and the first cab signal plate are electrically connected with communication extension unit, and first
Master control borad and the second master control borad are electrically connected with the first output board.
3. according to claim 2 from the computer platform for taking turns movement special equipment, which is characterized in that first master control
Plate includes first processor (1121), the first input unit (1122), the first output unit (1123), communication interface modules
(1124), the first synchronous interface module (1125), power supply monitoring module (1126) and first memory (1127)；First processor
Respectively with the first input unit, the first output unit, communication interface modules, the first synchronous interface module, power supply monitoring module and
First memory electrical connection, the first synchronous interface module are electrically connected with the second master control borad, and communication interface modules and the first locomotive are believed
The electrical connection of number plate, the first input unit and the first output unit are electrically connected with the first output board.
4. according to claim 2 from the computer platform for taking turns movement special equipment, which is characterized in that first output
Plate includes the first execution unit and the second execution unit；First execution unit is electrically connected with the first master control borad, the second execution unit
It is electrically connected with the second master control borad.
5. according to claim 2 from the computer platform for taking turns movement special equipment, which is characterized in that first locomotive
Signal plate includes the first CPU (1151), the 2nd CPU (1152), the first signal conditioning module (1153), second signal conditioning module
(1154), 2 communication interface modules (1155), 2 data exchange modules (1156), 2 synchronised clock modules (1157), 2
Power supply monitoring module and relay (1158)；First CPU is electrically connected with the first signal conditioning module and power supply monitoring module respectively,
First CPU is electrically connected by each communication interface modules, each data exchange module and each synchronised clock module with the 2nd CPU
Connect, the 2nd CPU is electrically connected with second signal conditioning module and power supply monitoring module respectively, relay respectively with the first signal condition
Module and the electrical connection of second signal conditioning module.
6. according to claim 3 from the computer platform for taking turns movement special equipment, which is characterized in that first input
Unit includes speed acquisition interface (3), pipe pressure acquisition interface (4), working condition acquiring interface (5) and detection interface (10)；Speed is adopted
Collection interface, pipe pressure acquisition interface, working condition acquiring interface and detection interface are electrically connected with first processor, detect interface and first
Output board electrical connection.
7. according to claim 1 or 2 or 3 or 4 or 5 or 6 from the computer platform for taking turns movement special equipment, feature exists
In communication extension unit includes CAN communication interface, high speed bus interface, LAN communication interface, 422 communication interfaces and data storage
Device.
8. a kind of pipe based on the computer platform as claimed in claim 6 from wheel movement special equipment presses signal acquisition method,
It further include first pressure sensor (6) and second pressure sensor (7)；First pressure sensor and second pressure sensor with
Pipe presses acquisition interface electrical connection；It is characterized by comprising the following steps:
Threshold range [the Δ P that the first pipe presses the pressure difference of P1 and the second pipe pressure P2 is arranged in (8-1)min,ΔPmax]；
(8-2) first master control borad acquires the first pipe by first pressure sensor and presses P1, and the second master control borad is passed by second pressure
Sensor acquires the second pipe and presses P2；
(8-3) utilizes formula Δ P=| P1-P2 | the pressure differential deltap P for calculating the first pipe pressure P1 and the second pipe pressure P2, and if Δ Pmin≤
ΔP≤ΔPmax, the first pipe presses P1 and the second pipe pressure P2 is equal to the first pipe pressure P1 and the second pipe presses the average value of P2, i.e.,
If Δ P > Δ PmaxOr Δ P < Δ Pmin, the first pipe pressure P1 and the second pipe pressure P2 are equal to the first pipe pipe of pressure P1 and second
Press the maximum value of P2, i.e. P1=P2=max { P1, P2 }；
(8-4) compares the first pipe pressure P1 and the second pipe pressure P2, if P1 ≠ P2, shows that pipe presses error in data, the first master control borad is not
Data are sent to user-machine interface cells D MI；If P1=P2, the first master control borad is sent to user-machine interface cells D MI
Data.
9. a kind of speed signal acquisition method based on the computer platform as claimed in claim 6 from wheel movement special equipment,
It further include First Speed sensor (8) and second speed sensor (9)；First Speed sensor and second speed sensor with
The electrical connection of speed acquisition interface；It is characterized by comprising the following steps:
Threshold range [the Δ V of (9-1) setting speed differencemin,ΔVmax]；
(9-2) first master control borad acquires First Speed V1 by First Speed sensor, passes through second speed sensor acquisition the
Two speed V2；Second master control borad acquires third speed V1 ' by First Speed sensor, and second speed sensor acquires four-speed
Spend V2 '；
(9-3) chooses the larger value of First Speed V1 and second speed V2 as the 5th speed V3, i.e. V3=max { V1, V2 }；Choosing
Take the larger value of third speed V1 ' and fourth speed V2 ' as the 6th speed V4, i.e. V4=max V1 ', V2 ' }；
(9-4) utilizes formula Δ V=| V3-V4 | the speed difference Δ V for calculating the 5th speed V3 and the 6th speed V4, and if Δ Vmin
≤ΔV≤ΔVmax, the 5th speed V3 and the 6th speed V4 are equal to the maximum value of the 5th speed V3 and the 6th speed V4, i.e. V3
=V4=max { V3, V4 }；
If Δ V > Δ VmaxOr Δ V < Δ Vmin, implement emergency braking.
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