CN110930785A - Fault simulation system and method for subway power transformation device - Google Patents
Fault simulation system and method for subway power transformation device Download PDFInfo
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Abstract
A system and a method for simulating faults of a subway power transformation device comprise that a local area teaching network is formed between a teacher machine and a plurality of student machines, and the teacher machine can control the running state of each student machine; the teacher machine controls the running state of each student machine as follows: the teacher machine transmits a request instruction with running state information to the student machine to enable the student machine to realize the running state; the teacher machine transmits a request instruction with running state information to the student machine in the format of an information frame. By combining other structures and methods, the defects that all information frames in the prior art need to be copied into a constant temporary storage space controlled by a circuit before being transmitted to the WIFI module, the copying cost of other storage spaces often appears, and the transmission performance of the information frames with small capacity is not facilitated are effectively overcome.
Description
Technical Field
The invention relates to the technical field of subway power transformation, belongs to the technical field of fault simulation, and particularly relates to a fault simulation system and method of a subway power transformation device.
Background
The subway is a large-traffic track transportation system, adopts a steel wheel steel rail system, has standard gauge of 1435mm, mainly runs in a tunnel built in an underground space of a large city, and can penetrate through the ground to run on the ground or a viaduct when conditions allow. According to the different types of vehicles, the subway can be divided into a conventional subway and a small-section subway, and according to the different passenger transport scales of the lines, the subway can be divided into a high-traffic subway and a large-traffic subway. In order to simulate the faults of the subway transformer device in teaching, a subway multimedia teaching system is provided at present, wherein the subway multimedia teaching system comprises a teacher machine and a student machine; the teacher machine and the student machine are both provided with device simulation modules, and the device simulation modules comprise fault information; a local area teaching network is formed between the teacher machine and the plurality of student machines, and the teacher machine can control the running state of each student machine.
In order to facilitate carrying, the teacher computer and the student computers generally adopt notebook computers including WIFI modules, the notebook computer serving as the teacher computer is wirelessly connected with the WIFI module of the notebook computer serving as the student computers through the WIFI module to form a WLAT serving as a local area teaching network, and thus, the teacher computer controls the running state of each student computer to be that: the teacher machine transmits a request instruction with running state information to the student machine to enable the student machine to realize the running state, and with the progress of the current WLAT task and communication protocol, a larger number of WLAT centralized student machines are increased, so that task performance for stably and efficiently controlling the running state of each student machine is provided for the whole WLAT; the teacher machine and the student machine are provided with framing and efficient and stable transmission of request instructions of running state information, and sufficient support is provided for the student machine to be configured and shared according to requirements; the controller with the modular ALUs with good compatibility is a key component with information two-dimensional processing commonly used in teacher machines; however, a general WIFI module can only support information transmission of a set sub-frame length threshold at most, when a plurality of request instructions with operation state information need to be transmitted, a teacher machine must decompose a request instruction with operation state information with small capacity into a request instruction sub-segment with operation state information with a set sub-frame length threshold, and then the request instruction sub-segment is framed into an information sub-frame format, so that the transmission can be executed in a WLAT finally; because the controller with several ALUs has to perform handling for each subframe, subframe handling performance is reduced.
With the continuous perfection of WLAT information transmission, the direct transmission of information frames with small capacity can be met, so that request instructions with running state information with small capacity can be directly transmitted to a WIFI module for processing, instructions with the highest capacity of 128 multiplied by 1024bits can be transmitted to the WIFI module for processing, the WIFI module is used for executing the division of the request instructions with the running state information, a large number of processing tasks of a controller of a teacher machine are transferred to the WIFI module for processing, namely the division and verification of the information frames are integrally achieved for the WIFI module, the number of information subframes which are required to be processed by the controller of the teacher machine is reduced, and the purpose of improving WLAT processing performance is achieved. The WIFI module capable of meeting the requirements of WALT communication and related communication protocols and the frame verification and operation performance are required, the information frame division into subframes and the frame verification and operation performance are achieved through the bottom layer of the WIFI module or a circuit of the WIFI module, so that the information frame division into subframes is required by the bottom layer of the WIFI module or the circuit of the WIFI module, the requirements for the WIFI module are high, the bottom layer of the WIFI module and the circuit of the WIFI module are complex, and the bottom layer of the WIFI module can be an OS system; in addition, the WLAT subframe of the WLAT requires the bottom layer and the circuit to operate together, and the communication cost between the bottom layer and the circuit is not low in the case of the WLAT subframe which is executed together with the circuit, which is not favorable for the performance of the WLAT subframe; a more common mode for dividing the sub-frames exists, and the mode delays the sub-frame dividing time to be achieved before a request instruction information frame with running state information is transmitted to the bottom layer of the WIFI module; the auxiliary MCU module is used for explaining pointers of the discontinuous storage space through a queue, then the head pointer of the queue is made known by the auxiliary MCU, after the auxiliary MCU transmits a request instruction with running state information of one partition, the auxiliary MCU does not transmit a stop instruction, transmits the request instruction with the running state information of the next partition by virtue of queue registration information, and then transmits a stop instruction.
In order to reduce the consumption of bottom layer and circuit information transmission brought by subframe input or output, the current improvement provides a subframe input or output mode with small capacity, such a low-consumption subframe processing information transmission mode is realized by a temporary storage space management and control clearing mode and a bottom layer and circuit common mode of uniformly assisting the MCU to read out a storage space, so that the transmission of non-copy and non-stop instructions of subframes is realized, and the information transmission consumption of the subframes on the bottom layer and the circuit of the WIFI module is reduced; however, in the subframe input or output mode with small capacity, all information frames need to be copied to a constant temporary storage space controlled by a circuit before being transmitted to the WIFI module, so that the copy cost of another storage space often occurs, which is not favorable for the transmission performance of the information frames with small capacity.
In short, in order to meet the requirement of transmitting a request instruction with running state information with good performance under the application of WLAT, a request instruction with running state information with good transmission capability, low consumption of subframe input or output, uncomplicated completion of bottom layer and circuit co-operation by a WIFI module, and no small capacity, and a request instruction subframe clearing manner with running state information are provided, so that the application requirement is met by combining a controller with a plurality of ALUs.
Disclosure of Invention
In order to solve the above problems, the present invention provides a fault simulation WLAT for a metro power transformation device and a method thereof, which effectively avoid the defects in the prior art that all information frames need to be copied into a constant temporary storage space managed and controlled by a circuit before being transmitted to a WIFI module, the copying cost of another storage space often occurs, and the transmission performance of the information frames with small capacity is not favorable.
In order to overcome the defects in the prior art, the invention provides a solution for a fault simulation WLAT (wireless local area network) of a subway power transformation device and a method thereof, which comprises the following steps:
a fault simulation WLAT of a subway power transformation device comprises a teacher machine and a student machine; the teacher machine and the student machine are both provided with device simulation modules; the device simulation module includes:
fault information;
the teacher computer and the student computers generally adopt notebook computers comprising WIFI modules, and the notebook computer serving as the teacher computer is wirelessly connected with the WIFI module of the notebook computer serving as the student computers through the WIFI module to form a WLAT serving as a local area teaching network.
The method for simulating the fault of the subway transformer device comprises the following steps:
a local area teaching network is formed between the teacher machine and the plurality of student machines, and the teacher machine can control the running state of each student machine;
the teacher machine controls the running state of each student machine as follows: the teacher machine transmits a request instruction with running state information to the student machine to enable the student machine to realize the running state;
the teacher machine transmits a request instruction with running state information to the student machine in an information frame format, and the method comprises the following specific steps:
when the hardware and the bottom layer are arranged to meet the separation or concentration performance of the discontinuous storage space, before the bottom layer is not decomposed into information frames with small capacity, the information frames with small capacity are stored with request instructions of running state information by using a variable temporary storage space, the information frame headers with small capacity are stored in a constant temporary storage space, and the information frame body storage part with small capacity is placed in the constant temporary storage space or the variable temporary storage space; the length of the request command with the nonlinear running state information is stored in the request command capacity region with the running state information S1 indicated by K8; the header of the message frame with small capacity is stored in the request instruction temporary storage space of the linear with operation state information of the message frame, and the other request instructions with operation state information of the message frame are stored in the partition pointed by the queue in the class S2.
The queue is a class, a member variable I in the class points to the relative quantity of a request instruction with running state information of an information frame in a partition, and a member variable II in the class is named as the capacity of the request instruction with the running state information of the information frame in the partition; the length of the linear request instruction with the running state information plus the capacity of the partition request instruction with the running state information can maximally meet the storage of information frames with not small capacity of 128 × 1024 bits. The method comprises the steps of copying an information frame header to a special software temporary storage space by using a method of copying the information frame header to the special software temporary storage space, completing updating of information of each partition information frame header, dividing the information frame header by using a circuit, clearing the work of updating the information of the information frame header to software implementation, and reducing the copying cost. After the information frame is split at the bottom layer, the storage mode of the sub-frame information frame is that the head of the sub-frame information frame is stored in the temporary storage space of the special software, and the sub-frame information frame body is still stored in the constant temporary storage space and the partition temporary storage space.
Decoding the header of the information frame, confirming the number of sub-frames divided by the information frame and whether the information frame needs to be partitioned or not for the information frame. For the information frames needing to be partitioned, the information frame headers are copied to a plurality of software temporary storage spaces according to the number of the required partitions. In the small information frame after the sub-frame, the information frame head of the first section is stored in the software temporary storage space, the information frame body of the first information domain is still stored in the constant temporary storage space, the information frame head of the second information domain is stored in the software temporary storage space, one part of the information frame body of the second information domain is stored in the constant temporary storage space, and the rest part of the information frame body is stored in the partition temporary storage space. And constructing a transmission expression symbol chain for the heads and bodies of all the subframe information frames, acquiring the positions of all the information frames divided into subframes or all the subareas of all the information frames divided into subframes by the hardware by virtue of the transmission expression symbol chain, and acquiring the contents of all the information frames divided into subframes or all the subareas of all the subframe information frames as a request instruction subframe clearing WIFI module method with running state information.
The method for segmenting the information frame comprises the following steps:
SA-1: acquiring the number of K8 pointing to constant temporary storage space and partitioned temporary storage space, decoding an information frame header, confirming the number of sub-frames divided by the information frame and determining whether the information frame is partitioned or not;
and SA-2: for the information frames needing to be partitioned, copying the information frame headers to a plurality of special software temporary storage spaces according to the number of the partitions, finishing the updating of the information of each partition information frame header, and crossing the SA-2 without partitioning;
and SA-3: dividing the information frame into subframes, and completing auxiliary MCU mapping for each subframe;
SA-4: dividing each information frame of each partition into sub-frames, wherein each sub-frame comprises a special temporary storage space, a constant temporary storage space and a partition temporary storage space, and acquiring a transfer expression symbol respectively, filling a related character information field and constructing an expression symbol queue; keywords are needed when the expression symbol is obtained, so that the same expression symbol cannot be obtained by a plurality of processes;
SA-5: temporarily storing K8 in a K8 temporary storage space ring, and updating a pointer of a transfer expression temporary storage space ring;
SA-6: constructing a transfer expression control block to inform hardware that a new information frame needs to be transferred;
SA-7: the hardware assists the MCU to read the transmission expression symbol chain by means of the content of the transmission expression symbol control block, and the position of each information frame in all the partitions divided into sub-frames is obtained;
SA-8: dividing the information frame into subframe addresses by means of indication information frames in the expression symbols, and assisting the MCU to read information of each subframe information frame of all the partitions; dividing a plurality of information frames belonging to the same subarea into subframes to be spliced into a subarea information frame;
SA-9: the WIFI module performs hardware operation frame verification and CRC, writes back to a transfer expression symbol after the information frame is transferred, and informs software that the information frame is transferred;
SA-10: the bottom layer handles the abort or soft abort instruction, checks the writeback status of the transfer expression, dequeues K8 from the K8 scratch space ring if the transfer is complete, completes the release of K8, and updates the read _ p pointer of the transfer expression scratch space ring.
In the SA-4, each information frame of each partition is divided into subframes, and each subframe includes an expression queue constructed by transfer expressions respectively acquired by a dedicated temporary storage space, a constant temporary storage space, and a partition temporary storage space, so as to satisfy a chain-type auxiliary MCU, allow a request instruction with running state information in fragmented storage to be completed by the auxiliary MCU at a time, and each transfer expression in the expression queue includes 64-bit storage address information, length information, and the like.
In the SA-6, the expression control block is constructed, and the description information is address and length information stored in the expression queue, and after the expression control block is constructed from the bottom layer, the expression control block informs the WIFI module hardware in a register writing manner, so as to read the entire expression queue to the hardware.
The invention has the beneficial effects that:
the invention eliminates the performance of part of hardware to software realization, namely, adopts the information frame with small bottom layer partition capacity and the information frame header information field of the updated information frame, omits the operation and disposal consumption of hardware sub-frame, and greatly reduces the complexity of hardware design; in addition, the invention can meet the input or output of the low-consumption subframe, greatly reduce the cooperative cost of the bottom layer and the circuit, and simultaneously save the one-time copy of the subframe information frame to the special software temporary storage space compared with the WIFI module which can meet the input or output of the small-capacity subframe, and only copy the frame header part of the information updated by the divided content to the software temporary storage space, thereby greatly improving the performance and realizing the high-efficiency transmission of the request instruction subframe clearing with the running state information.
Drawings
Fig. 1 is a flowchart of a method of a fault simulation system of a subway substation apparatus according to the present invention.
Detailed description of the preferred embodiment
The invention will be further described with reference to the following figures and examples.
As shown in fig. 1, the fault simulation system of the subway transformer device comprises a subway multimedia teaching WLAT, wherein the subway multimedia teaching WLAT comprises a teacher machine and a student machine; the teacher machine and the student machine are respectively provided with an auxiliary teaching module, a device simulation module, an examination test module and a WLAT setting module; the teacher computer is also provided with a student computer control module; the auxiliary teaching module is used for teaching in a format of playing the course video; the device simulation module for simulating an operation exercise with a PSCADA, comprising: the synchronous controller, the main wiring diagram simulation operation unit and the simulation cabinet body simulation operation unit; and/or the cabinet body simulation operation unit also comprises a real object cabinet body; if a real object cabinet simulation operation unit is configured, then: the states of the main wiring diagram simulation operation unit, the physical cabinet simulation operation unit and the simulation cabinet simulation operation unit are synchronously changed; if the real object cabinet body simulation operation unit is not configured, then: the states of the main wiring diagram simulation operation unit and the simulation cabinet body simulation operation unit are synchronously changed; the examination testing module comprises a teacher examination testing unit and a student examination testing unit; the WLAT setting module comprises a teacher WLAT setting unit and a student WLAT setting unit; the teacher WLAT setting unit is a setting unit shared by accounts with teacher roles, and comprises: the class management and control subunit is used for adding, modifying, deleting and checking class information; the student management and control subunit: students under classes for addition, modification, deletion, and viewing; a personal information setting subunit for setting a personal password and modifying the set personal password; the student WLAT setting unit is a setting unit shared by an account with a student role, and comprises the following steps: a viewing subunit, configured to view the personal information; a password modification subunit for modifying the set personal password; and the student machine management and control module is used for checking the basic information and the current state of the current student machine, checking the basic information of the logged students and controlling the screen locking and physical connection of the student machine by the teacher machine. The device simulation module further comprises: the device comprises an event information view configuration unit, a simulation module and a display unit, wherein the event information view configuration unit is used for registering and displaying the operation events of the device simulation module; the event comprises the following steps:
switch on/off information, card hanging/off information, remote and local information and fault information;
the teacher computer and the student computers generally adopt notebook computers comprising WIFI modules, and the notebook computer serving as the teacher computer is wirelessly connected with the WIFI module of the notebook computer serving as the student computers through the WIFI module to form a WLAT serving as a local area teaching network.
The method for simulating the fault of the subway transformer device comprises the following steps:
constitute local area teaching network between teacher's machine and a plurality of student's machine, the running state of each student's machine of teacher's machine control, this running state includes: controlling the screen locking of each student machine, and controlling whether a certain student machine has a real object connection authority;
the teacher machine controls the running state of each student machine as follows: the teacher machine transmits a request instruction with running state information to the student machine to enable the student machine to realize the running state;
the teacher machine transmits a request instruction with running state information to the student machine in an information frame format, and the method comprises the following specific steps:
to understand the cost of information frame delivery, there are the following settings:
WLAT use disposal cost, a 3 × 1024bits capacity information frame disposal cost is set to K1;
the communication protocol disposal cost is set to K2 as the disposal cost of a 3 x 1024bits capacity information frame; the communication protocol handles information frames with 3 × 1024bits capacity and information frames with 128 × 1024bits capacity, and the handling cost is consistent, namely K2;
the bottom layer processing consumption of the WIFI module is set to be K3 by the processing consumption of a 3 multiplied by 1024bits capacity information frame;
under the condition of no copying, the processing cost of the information frame with the 3 x 1024bits capacity and the information frame with the 128 x 1024bits capacity at the bottom layer of the WIFI module are both K3;
the WIFI module information frame copying cost is set to be K4, and the information frame processing cost with the capacity of 3 multiplied by 1024bits is set to be K4;
the WIFI module hardware assists MCU information frame disposal consumption, and MCU information frame disposal consumption required for assisting information frame transmission is set to K5;
the processing cost of the subframe information frame of the WIFI module circuit is set to be K6, wherein the processing cost of the information frame with the capacity of 3 multiplied by 1024bits is set to be K6;
the processing cost of the information frame of the bottom layer subframe input or output of the subframe with small capacity is set to be K7;
k8 points to the request instruction with running state information and the information of the information frame header which need to be transmitted, a constant temporary storage space is used for storing the information of the information frame, and WIFI module hardware acquires the content of the information frame by means of the indicator to transmit the information frame.
The processing cost of the WIFI module for commonly transferring T3 × 1024bits of information frames and transferring path information frames is represented as T × K1+ T × K2+ T × K3+ T × K5;
the standard WIFI module can meet the requirement that TSO transfers T3 x 1024bits information frames, and the transfer path information frame handling cost is expressed as (T2< T) T x K1+ K2+ K3+ T x K4+ T x K6
The WIFI module capable of meeting the input or output of the small-capacity sub-frame transmits T information frames, K8 pointing information frame content needs to be copied to the special software temporary storage space and then can be transmitted, and the transmission path information frame disposal cost is represented as T multiplied by K1+ K2+ T multiplied by K3+ T multiplied by K4+ T multiplied by K7+ T multiplied by K4
The method for clearing the teacher machine by the request instruction subframe with the running state information, which is provided by the application and has the small capacity of the cooperation of the bottom layer and the circuit, is characterized in that the processing cost of the information frame transmission path for transmitting the T information frames with the capacity of 3 multiplied by 1024bits is represented as T multiplied by K1+ K2+ K3+ T multiplied by K7+ T multiplied by K4.
The method for requesting the instruction subframe to clear the teacher machine with the running state information saves the consumption of hardware subframe operation and processing compared with a general WIFI module which can meet the requirements of a WLAN, reduces the difficulty of circuit construction, reduces the one-time copying of subframe information frames to a special software temporary storage space compared with a WIFI module which can meet the requirements of small-capacity subframe input or output, and greatly improves the performance.
When the hardware and the bottom layer are arranged to meet the separation or concentration performance of the discontinuous storage space, before the bottom layer is not decomposed into information frames with small capacity, the information frames with small capacity are stored with request instructions of running state information by using a variable temporary storage space, the information frame headers with small capacity are stored in a constant temporary storage space, and the information frame body storage part with small capacity is placed in the constant temporary storage space or the variable temporary storage space; the length of the request command with the nonlinear running state information is stored in the request command capacity region with the running state information S1 indicated by K8; the header of the message frame with small capacity is stored in the request instruction temporary storage space of the linear with operation state information of the message frame, and the other request instructions with operation state information of the message frame are stored in the partition pointed by the queue in the class S2.
The queue is a class, a member variable I in the class points to the relative quantity of a request instruction with running state information of an information frame in a partition, and a member variable II in the class is named as the capacity of the request instruction with the running state information of the information frame in the partition; the length of the linear request instruction with the running state information plus the capacity of the partition request instruction with the running state information can maximally meet the storage of information frames with not small capacity of 128 × 1024 bits. The method comprises the steps of copying an information frame header to a special software temporary storage space by using a method of copying the information frame header to the special software temporary storage space, completing updating of information of each partition information frame header, dividing the information frame header by using a circuit, clearing the work of updating the information of the information frame header to software implementation, and reducing the copying cost. After the information frame is split at the bottom layer, the storage mode of the sub-frame information frame is that the head of the sub-frame information frame is stored in the temporary storage space of the special software, and the sub-frame information frame body is still stored in the constant temporary storage space and the partition temporary storage space.
Decoding the header of the information frame, confirming the number of sub-frames divided by the information frame and whether the information frame needs to be partitioned or not for the information frame. For the information frames needing to be partitioned, the information frame headers are copied to a plurality of software temporary storage spaces according to the number of the required partitions. In the small information frame after the sub-frame, the information frame head of the first section is stored in the software temporary storage space, the information frame body of the first information domain is still stored in the constant temporary storage space, the information frame head of the second information domain is stored in the software temporary storage space, one part of the information frame body of the second information domain is stored in the constant temporary storage space, and the rest part of the information frame body is stored in the partition temporary storage space. And constructing a transmission expression symbol chain for the heads and bodies of all the subframe information frames, acquiring the positions of all the information frames divided into subframes or all the subareas of all the information frames divided into subframes by the hardware by virtue of the transmission expression symbol chain, and acquiring the contents of all the information frames divided into subframes or all the subareas of all the subframe information frames as a request instruction subframe clearing WIFI module method with running state information.
The method for segmenting the information frame comprises the following steps:
SA-1: acquiring the number of K8 pointing to constant temporary storage space and partitioned temporary storage space, decoding an information frame header, confirming the number of sub-frames divided by the information frame and determining whether the information frame is partitioned or not;
and SA-2: for the information frames needing to be partitioned, copying the information frame headers to a plurality of special software temporary storage spaces according to the number of the partitions, finishing the updating of the information of each partition information frame header, and crossing the SA-2 without partitioning;
and SA-3: dividing the information frame into subframes, and completing auxiliary MCU mapping for each subframe;
SA-4: dividing each information frame of each partition into sub-frames, wherein each sub-frame comprises a special temporary storage space, a constant temporary storage space and a partition temporary storage space, and acquiring a transfer expression symbol respectively, filling a related character information field and constructing an expression symbol queue; keywords are needed when the expression symbol is obtained, so that the same expression symbol cannot be obtained by a plurality of processes;
SA-5: temporarily storing K8 in a K8 temporary storage space ring, and updating a pointer of a transfer expression temporary storage space ring;
SA-6: constructing a transfer expression control block to inform hardware that a new information frame needs to be transferred;
SA-7: the hardware assists the MCU to read the transmission expression symbol chain by means of the content of the transmission expression symbol control block, and the position of each information frame in all the partitions divided into sub-frames is obtained;
SA-8: dividing the information frame into subframe addresses by means of indication information frames in the expression symbols, and assisting the MCU to read information of each subframe information frame of all the partitions; dividing a plurality of information frames belonging to the same subarea into subframes to be spliced into a subarea information frame;
SA-9: the WIFI module performs hardware operation frame verification and CRC, writes back to a transfer expression symbol after the information frame is transferred, and informs software that the information frame is transferred;
SA-10: the bottom layer handles the abort or soft abort instruction, checks the writeback status of the transfer expression, dequeues K8 from the K8 scratch space ring if the transfer is complete, completes the release of K8, and updates the read _ p pointer of the transfer expression scratch space ring.
In the SA-4, each information frame of each partition is divided into subframes, and each subframe includes an expression queue constructed by transfer expressions respectively acquired by a dedicated temporary storage space, a constant temporary storage space, and a partition temporary storage space, so as to satisfy a chain-type auxiliary MCU, allow a request instruction with running state information in fragmented storage to be completed by the auxiliary MCU at a time, and each transfer expression in the expression queue includes 64-bit storage address information, length information, and the like.
In the SA-6, the expression control block is constructed, and the description information is address and length information stored in the expression queue, and after the expression control block is constructed from the bottom layer, the expression control block informs the WIFI module hardware in a register writing manner, so as to read the entire expression queue to the hardware.
While the present invention has been described above in terms of procedures described in embodiments, it will be understood by those skilled in the art that the present disclosure is not limited to the above-described embodiments, and that various changes, modifications, and substitutions may be made without departing from the scope of the present invention.
Claims (7)
1. A fault simulation system of a subway power transformation device comprises a teacher machine and a student machine; the teaching and learning device is characterized in that the teacher machine and the student machine are both provided with a device simulation module; the device simulation module includes:
fault information;
the teacher computer and the student computers generally adopt notebook computers comprising WIFI modules, and the notebook computer serving as the teacher computer is wirelessly connected with the WIFI module of the notebook computer serving as the student computers through the WIFI module to form a WLAT serving as a local area teaching network.
2. A method of simulating WLAT for a fault of a metro power plant, comprising:
a local area teaching network is formed between the teacher machine and the plurality of student machines, and the teacher machine can control the running state of each student machine;
the teacher machine controls the running state of each student machine as follows: the teacher machine transmits a request instruction with running state information to the student machine to enable the student machine to realize the running state;
the teacher machine transmits a request instruction with running state information to the student machine in an information frame format, and the method comprises the following specific steps:
when the hardware and the bottom layer are arranged to meet the separation or concentration performance of the discontinuous storage space, before the bottom layer is not decomposed into information frames with small capacity, the information frames with small capacity are stored with request instructions of running state information by using a variable temporary storage space, the information frame headers with small capacity are stored in a constant temporary storage space, and the information frame body storage part with small capacity is placed in the constant temporary storage space or the variable temporary storage space; the length of the request command with the nonlinear running state information is stored in the request command capacity region with the running state information S1 indicated by K8; the header of the message frame with small capacity is stored in the request instruction temporary storage space of the linear with operation state information of the message frame, and the other request instructions with operation state information of the message frame are stored in the partition pointed by the queue in the class S2.
3. A method for simulating a WLAT for a subway substation device as claimed in claim 2, wherein said queue is a class, a member variable one in the class points to a relative quantity of request commands with running state information of an information frame in a partition, and a member variable two in the class lists a capacity of request commands with running state information belonging to the information frame in the partition; the length of a linear request instruction with running state information plus the capacity of a partition request instruction with running state information can maximally meet the storage of information frames with small capacity of 128 × 1024 bits; the method comprises the steps that a processing cost of a subframe of a circuit is reduced, the preprocessing of a subframe of a bottom layer is utilized, information frames with small capacity are segmented on the bottom layer, a WIFI module which can meet the input or output of the subframe with small capacity can be met, all the information frames are copied to a special software temporary storage space to be transmitted, in order to reduce the copying cost of the information frames, a method of copying an information frame header to the special software temporary storage space is utilized, the information frame header is copied to a plurality of special software temporary storage spaces, meanwhile, the updating of information of each partition information frame header is completed, the information frame header is divided by the circuit, the work of updating the information of the information frame header is eliminated to be realized by software, and meanwhile, the copying cost is reduced; after the information frame is split at the bottom layer, the storage mode of the sub-frame information frame is that the head of the sub-frame information frame is stored in the temporary storage space of the special software, and the sub-frame information frame body is still stored in the constant temporary storage space and the partition temporary storage space.
4. A method for simulating WLAT for a failure of a subway substation device as claimed in claim 2, wherein decoding the information frame header, confirming for the information frame that the information frame is divided into a number of sub-frames and whether the information frame partitioning is required; for the information frames needing to be partitioned, copying the information frame headers to a plurality of software temporary storage spaces according to the number of the partitions needing to be partitioned; in the small information frame after the sub-frame, the information frame head of the first section is stored in the software temporary storage space, the information frame body of the first information domain is still stored in the constant temporary storage space, the information frame head of the second information domain is stored in the software temporary storage space, one part of the information frame body of the second information domain is stored in the constant temporary storage space, and the rest part of the information frame body of the second information domain is stored in the partition temporary storage space; and constructing a transmission expression symbol chain for the heads and bodies of all the subframe information frames, acquiring the positions of all the information frames divided into subframes or all the subareas of all the information frames divided into subframes by the hardware by virtue of the transmission expression symbol chain, and acquiring the contents of all the information frames divided into subframes or all the subareas of all the subframe information frames as a request instruction subframe clearing WIFI module method with running state information.
5. A method for simulating WLAT of a fault in a subway substation apparatus as claimed in claim 2, wherein said method for segmenting information frames comprises:
SA-1: acquiring the number of K8 pointing to constant temporary storage space and partitioned temporary storage space, decoding an information frame header, confirming the number of sub-frames divided by the information frame and determining whether the information frame is partitioned or not;
and SA-2: for the information frames needing to be partitioned, copying the information frame headers to a plurality of special software temporary storage spaces according to the number of the partitions, finishing the updating of the information of each partition information frame header, and crossing the SA-2 without partitioning;
and SA-3: dividing the information frame into subframes, and completing auxiliary MCU mapping for each subframe;
SA-4: dividing each information frame of each partition into sub-frames, wherein each sub-frame comprises a special temporary storage space, a constant temporary storage space and a partition temporary storage space, and acquiring a transfer expression symbol respectively, filling a related character information field and constructing an expression symbol queue; keywords are needed when the expression symbol is obtained, so that the same expression symbol cannot be obtained by a plurality of processes;
SA-5: temporarily storing K8 in a K8 temporary storage space ring, and updating a pointer of a transfer expression temporary storage space ring;
SA-6: constructing a transfer expression control block to inform hardware that a new information frame needs to be transferred;
SA-7: the hardware assists the MCU to read the transmission expression symbol chain by means of the content of the transmission expression symbol control block, and the position of each information frame in all the partitions divided into sub-frames is obtained;
SA-8: dividing the information frame into subframe addresses by means of indication information frames in the expression symbols, and assisting the MCU to read information of each subframe information frame of all the partitions; dividing a plurality of information frames belonging to the same subarea into subframes to be spliced into a subarea information frame;
SA-9: the WIFI module performs hardware operation frame verification and CRC, writes back to a transfer expression symbol after the information frame is transferred, and informs software that the information frame is transferred;
SA-10: the bottom layer handles the abort or soft abort instruction, checks the writeback status of the transfer expression, dequeues K8 from the K8 scratch space ring if the transfer is complete, completes the release of K8, and updates the read _ p pointer of the transfer expression scratch space ring.
6. A method for simulating WLAT (wafer level transport) of a subway substation device according to claim 5, wherein in SA-4, each information frame of each partition is divided into subframes, and the subframes comprise an expression symbol queue constructed by transfer expression symbols respectively acquired by a dedicated temporary storage space, a constant temporary storage space and a partition temporary storage space, so as to satisfy a chained auxiliary MCU (microprogrammed control unit), allow a request instruction with running state information in fragmented storage to be completed by the auxiliary MCU at one time, and each transfer expression symbol in the expression symbol queue comprises 64-bit storage address information, length information and the like.
7. The method for simulating WLAT (wafer level temperature) of the subway substation device according to claim 5, wherein in the SA-6, a constructed expression control block is used, the explained information is address and length information stored in an expression queue, and after the expression control block is constructed from a bottom layer, the expression control block informs WIFI module hardware in a register writing mode so as to realize the performance of reading the whole expression queue to the hardware.
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