CN106154921A - Intelligent agricultural machinery high_speed stamping die based on Internet of Things and method - Google Patents
Intelligent agricultural machinery high_speed stamping die based on Internet of Things and method Download PDFInfo
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- CN106154921A CN106154921A CN201610580248.9A CN201610580248A CN106154921A CN 106154921 A CN106154921 A CN 106154921A CN 201610580248 A CN201610580248 A CN 201610580248A CN 106154921 A CN106154921 A CN 106154921A
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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
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/21—Pc I-O input output
- G05B2219/21108—Module, I-O module consisting of counters and comparators
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Abstract
nullThe present invention relates to a kind of Intelligent agricultural machinery high_speed stamping die based on Internet of Things and method，Including master chip、Parameter collection module、GPRS communication module、GPS locating module、CAN drives module、Interface parameter display control circuit and electric power driving module，Also include that multiplex roles drives module，Described parameter collection module drives module to access master chip by multiplex roles，There is execution efficiency high、Take up room little、The features such as real-time performance is excellent and extensibility is strong，It is dispatched to processor by scheduler priority analyze and process，By parameter collection Info low for priority level by scheduler schedules to idle control zone delay process，Ensure important parameter priority treatment，When power is off or in the case of network connection interruption，The last of memorizer storage parameter collection module gathers data and operating system update data.
Description
Technical field
The present invention relates to agricultural machinery technological field, particularly relate to a kind of Intelligent agricultural machinery based on Internet of Things at a high speed
Processing system and method.
Background technology
China is large agricultural country, but most agricultural production completes by manual labor substantially, sows, execute in most rural areas
Fertilizer, irrigates and the operation such as harvesting, relies primarily on pure manual labor, and the most not only efficiency is low, and affect crops growth and
Harvest.Even if some place achieve Mechanization sowing, apply fertilizer, the operation such as arable land, generally also need manpower to coordinate, and sow and
The mechanized operations such as harvesting, fertilising are independent of one another, the most reasonably link together, also have impact on the efficiency of agricultural mechanical operation
And the production cycle.Additionally substantially lean on irrigation amount the opportunity of agricultural irrigation the experience of people to judge, can not judge accurately
Go out irrigation time and the irrigation volume of crops, irrigate and improper will cause the serious consequence such as crop production reduction, waste water resource.
Along with the development of technology of Internet of things and the demand to construction modern agriculture, Internet of Things is organic with agricultural mechanical operation
Combine, for improve agricultural mechanical operation efficiency significant with yield.But China's agriculture production environment
Changeable, agricultural production process disperses, and supplier is complicated, and demand is ever-changing waits difficulty.
During every job parameter of agricultural machinery, operational factor, ambient parameter are acquired, first, by
In needing the overabundance of data that gathers, and the single acquisition cycle is the shortest, traditional processor gathers at multi-group data simultaneously,
There will be during process, analysis to process and postpone even to cache the situation taking rear loss of data, seriously spun out agricultural
The time cycle of mechanical treatment data, and greatly reduce the accuracy of Internet of Things collection agricultural machinery data.Second, in data
During processing, storing, show, upload, owing to multi-group data runs simultaneously, embedded system is to system processing resources very
Rely on, if system resource is deficient, task dispatcher can not Real-Time Scheduling, the reality of agricultural machinery processing system can be directly influenced
Shi Xingneng.
Summary of the invention
The technical problem to be solved is to provide a kind of Intelligent agricultural machinery of based on Internet of Things high speed processing system
System and method, first, use the master chip of MC9S12XEP100MAG model and use embedded real-time operating system, preferably μ
C/OS kernel, compact structure, can reach the real-time disposal of multi-tasks of preemptive type, can manage at 64 parameter collection Info simultaneously
Reason, and priority treatment priority is the highest and is in the parameter collection Info of the highest ready state, it is provided that parameter collection Info is dispatched
Synchronize with between management, memory management, parameter collection Info task with communicate, the function such as time management and interruption service, have and hold
The features such as line efficiency is high, it is little to take up room, real-time performance is excellent and extensibility is strong.Second, parameter collection module by connecing more
Mouth driving module accesses master chip, reduces the use of master chip pin, reduces master chip selection cost, and multiplex roles driving module can
To be concurrently accessed multiple parameter collection module, increase extended area and the expansion interface number of master chip, adopt for increasing parameter
Collection module reserves corresponding expansion interface.3rd, the parameters information that parameter collection module can be collected by processor according to
Process significance level and pass through priority identifier identification priority, parameter collection Info high for priority level is passed through scheduler
Priority scheduling analyzes and processes to processor, by parameter collection Info low for priority level by scheduler schedules to idle control zone
Delay process.4th, during priority identifier identification priority, preferential evaluator will need information to be processed according to information weight
Wanting degree to be divided at least four task stack space, wherein GPS location/GPRS communications parameter collection information is preferential as first
Level, the rotation step number counting of motor shows as third priority, LCD as the second priority, oil level/oil pressure parameter acquisition
Show parameter as the 4th priority, so master chip carry out data process time, the first priority processing GPS location/GPRS is logical
News parameter, it is to avoid time delay occur in location information and GPRS communication information；Stepping electricity in second priority processing instrument display panel
The rotation step number counting of machine, it is to avoid occur starting speed display delay；Third priority processes oil pressure/oil in instrument display panel
The reading that position postpones to occur postpones.5th, when the rotation step number counting of motor is as the second priority processing, in order to reduce
The problem of motor pointer display delay on motor dial plate, within a processor, can by motor pointer
Hunting range maximum angle is divided into 500～1000 equal portions, and encodes these 500～1000 equal portions, makes motor pointer pendulum
Dynamic coding registration form, swings coding registration form instruction motor beat of pointer angle according to control signal power comparison motor
Degree, swings the setting of coding registration form, substantially reduces the delay time of control signal A/D conversion, reduces instrument and becomes index
The delay value of display.
The technical solution adopted for the present invention to solve the technical problems is:
Intelligent agricultural machinery high_speed stamping die based on Internet of Things, including master chip, parameter collection module, GPRS communication
Module, GPS locating module, CAN drive module, interface parameter display control circuit and electric power driving module, described main core
Sheet and engine parameter acquisition module drive module to electrically connect by CAN, described master chip the most respectively with in order to upper
The GPRS communication module of machine communication electrically connects and electrically connects in order to position the GPS locating module of harvester position, described main core
Sheet is connected with the interface parameter display control circuit in order to drive interface parameter to show, it is characterised in that also include that multiplex roles drives
Dynamic model block, described parameter collection module drives module to access master chip by multiplex roles.
Further, also include that external memorizer, described external memorizer are connected with master chip.Described external memorizer is adopted
Use IS61C1024AL model.
Further, the multiplex roles driving chip that described multiplex roles drives module to be VID6606 model, there are at least four groups
Output interface, can simultaneously drive four motors in interface parameter display control circuit.Multiplex roles drives setting of module
Putting the use reducing master chip pin, reduce master chip and select cost, multiplex roles drives module can be concurrently accessed multiple parameter
Acquisition module, increases extended area and the expansion interface number of master chip, for increasing the reserved corresponding expansion of parameter collection module
Exhibition interface.
Further, described master chip selects the master chip of MC9S12XEP100MAG model, master chip 23 foot and multiplex roles
Driving module CWA pin to connect, 23 pins of master chip drive the FA pin of module to be connected with multiplex roles, 24 pins of master chip
The CWB pin driving module with multiplex roles is connected, and 7 pins of master chip are connected to multiplex roles and drive the CWD pin of module, described
Multiplex roles drives module at least to have outA interface, outB interface, outC interface and four, outD interface.
Further, described parameter collection module includes generator parameter acquisition module, auger parameter collection module, electric power storage
Pond parameter detection module, inclination angle detection module, ambient parameter acquisition module, paddy full parameter collection module, threshing parameter acquisition mould
One or more in block.
Intelligent agricultural machinery high speed processing method based on Internet of Things, comprises the following steps:
S01: system electrification, the principal function of master chip initializes, and intervalometer and interruption are provided with, can bus initialization
The parameters sensor initializing of parameter collection module setting of making zero after having initialized with AD conversion；
S02: master chip creates startup task, keyboard task, instrument display task, parameter acquisition task, serial ports task, number
According to the task of process and GPS location/GPRS communication task；Described instrument display task includes that the rotation counting display of motor is appointed
One or more in business, interface background display task, interface parameter display task, LCD display task；Described parameter acquisition is appointed
Business includes engine parameter acquisition tasks, oil level/oil pressure parameter acquisition task, flood dragon parameter acquisition task, ambient parameter collection
One or more in task；
S03: create task control block and queue control block (QCB), and with the pointer OSQPtr in queue control block (QCB) by all queues
Control block chaining is chained list, is contacted the task code in task control block and task stack by PC pointer and SP pointer and is transported
Row；
S04: by GPS location/GPRS communication task, oil level/oil pressure parameter acquisition task, engine parameter acquisition tasks
And/or flood dragon parameter acquisition task is set to periodically execution task；The rotation of motor is counted display task, the interface back of the body
Scape display task, interface parameter display task, LCD display task and ambient parameter acquisition tasks are set to triggering task；
The priority orders of the task in the priority identifier identification step S03 of S05: master chip, priority identifier
Preferential identification GPS location/GPRS communication task is as the first priority, and the rotation step number counting load of motor is as second
Priority, oil level/oil pressure parameter acquisition task is as third priority, and LCD display task is as the 4th priority；Other tasks
Successive arrangement priority orders；
S06: master chip is by GPS location/GPRS communication task high for priority level and engine parameter acquisition tasks, oil
Position/oil pressure parameter acquisition task, flood dragon parameter acquisition task and/or ambient parameter acquisition tasks quasi-periodic perform task to be passed through
Scheduler priority is dispatched to master chip analysis, processes, is stored in external memorizer and/or is uploaded to host computer, and master chip will
The parameter collection Info that priority level is low passes through scheduler schedules to idle control zone delay process；
S07: when multiple parameter acquisition tasks operationally, when needing mutual ensuring escapement from confliction to call same shared resource,
Master chip gives the priority level of each one semaphore task of parameter acquisition task, and collects these priority levels into signal
Collection, the priority level that master chip obtains semaphore task according to task temporarily rises to all tasks during using shared resource
Limit priority one level higher on, after this semaphore task makes to be finished shared resource release semaphore, then recover should
The priority level that parameter acquisition task is original.
Further, in step S07: when parameter acquisition tasks obtains semaphore task, and share resource accessing
After end, it is necessary to release semaphore, this semaphore task need to call function OSSemPost at transmission semaphore,
OSSemPost function, before the counter operation to semaphore, first has to check whether the task of also waiting this semaphore,
If it did not, just semaphore enumerator OSEventCnt is added one；Go to run wait if it has, then call scheduler OS_Sched
The task that task medium priority is the highest.
Further, in step S07, need to access when an exclusive formula shares resource when parameter acquisition tasks it is necessary to
Call function OSMutexPend and ask to manage the mutex signal of this resource, if semaphore has signal, then mean
There is no other tasks at present and take shared resource, this parameter acquisition task can continue to run with and this exclusive formula is shared resource
Row accesses, and otherwise parameter acquisition task is put into waiting state, shares other tasks of resource release until taking this exclusive formula
Put this semaphore.
Further, include in described external memorizer that the first register mode area, the second register mode area, the 3rd register mode area and the 4th are posted
Depositing district, described first register mode area is for depositing the parameter acquisition task of real-time update, and the registered data of the first register mode area is in power-off
Can remove afterwards, the data of last parameters acquisition tasks before described second register mode area register system power-off, second
The registered data of register mode area is not removed；Described 3rd register mode area is used for depositing real-time system more new data, and the 3rd posts
The data depositing district can be eliminated after a loss of power；Described 4th register mode area is used for registration operations system data；When the 3rd register mode area
System update data can move to the 4th register mode area after having downloaded, when in the 3rd register mode area after more new data is transferred,
The data shifted are removed in three register mode areas.
Further, described operating system control with MCB the first register mode area in external memorizer, second
Register mode area, the 3rd register mode area and the 4th register mode area, described external memorizer internal memory divides the first register mode area, the second register mode area,
The method of the 3rd register mode area and the 4th register mode area is, one two-dimensional array of each register mode area definition, each in two-dimensional array
Dimension group is exactly a memory block, when scheduler is not in use by a memory block, can it be discharged in time.
Beneficial effect
Owing to have employed above-mentioned technical scheme, the present invention compared with prior art, has the following advantages that and actively imitates
Really:
First, use the master chip of MC9S12XEP100MAG model and use embedded real-time operating system, preferably μ
C/OS kernel, compact structure, can reach the real-time disposal of multi-tasks of preemptive type, can manage at 64 parameter collection Info simultaneously
Reason, and priority treatment priority is the highest and is in the parameter collection Info of the highest ready state, it is provided that parameter collection Info is dispatched
Synchronize with between management, memory management, parameter collection Info task with communicate, the function such as time management and interruption service, have and hold
The features such as line efficiency is high, it is little to take up room, real-time performance is excellent and extensibility is strong.Second, parameter collection module by connecing more
Mouth driving module accesses master chip, reduces the use of master chip pin, reduces master chip selection cost, and multiplex roles driving module can
To be concurrently accessed multiple parameter collection module, increase extended area and the expansion interface number of master chip, adopt for increasing parameter
Collection module reserves corresponding expansion interface.3rd, the parameters information that parameter collection module can be collected by processor according to
Process significance level and pass through priority identifier identification priority, parameter collection Info high for priority level is passed through scheduler
Priority scheduling analyzes and processes to processor, by parameter collection Info low for priority level by scheduler schedules to idle control zone
Delay process.4th, during priority identifier identification priority, preferential evaluator will need information to be processed according to information weight
Wanting degree to be divided at least four task stack space, wherein GPS location/GPRS communications parameter collection information is preferential as first
Level, the rotation step number counting of motor shows as third priority, LCD as the second priority, oil level/oil pressure parameter acquisition
Show parameter as the 4th priority, so master chip carry out data process time, the first priority processing GPS location/GPRS is logical
News parameter, it is to avoid time delay occur in location information and GPRS communication information；Stepping electricity in second priority processing instrument display panel
The rotation step number counting of machine, it is to avoid occur starting speed display delay；Third priority processes oil pressure/oil in instrument display panel
The reading that position postpones to occur postpones.5th, when the rotation step number counting of motor is as the second priority processing, in order to reduce
The problem of motor pointer display delay on motor dial plate, within a processor, can by motor pointer
Hunting range maximum angle is divided into 500～1000 equal portions, and encodes these 500～1000 equal portions, makes motor pointer pendulum
Dynamic coding registration form, swings coding registration form instruction motor beat of pointer angle according to control signal power comparison motor
Degree, swings the setting of coding registration form, substantially reduces the delay time of control signal A/D conversion, reduces instrument and becomes index
The delay value of display.6th, the second register mode area and the setting of the 3rd register mode area, it is ensured that when power is off or network connection interruption
In the case of, the last of memorizer storage parameter collection module gathers data and operating system update data.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the present invention.
Fig. 2 is the circuit diagram that multiplex roles of the present invention drives module.
Fig. 3 is the circuit diagram of external memorizer of the present invention.
Fig. 4 is the circuit diagram of external memorizer interface of the present invention.
Fig. 5 is the FB(flow block) of one embodiment of the invention.
Fig. 6 is signal set operation of the present invention and controls schematic diagram.
Signal set operation and control schematic diagram when Fig. 7 is delay process of the present invention.
In the drawings: 1-task control block；2-queue control block (QCB)；3-chained list；4-task code；5-delay process.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments are merely to illustrate the present invention
Rather than restriction the scope of the present invention.In addition, it is to be understood that after having read the content that the present invention lectures, people in the art
The present invention can be made various changes or modifications by member, and these equivalent form of values fall within the application appended claims equally and limited
Scope.
Embodiments of the present invention:
Seeing Fig. 1～Fig. 7, Intelligent agricultural machinery high_speed stamping die based on Internet of Things, including master chip, parameter acquisition
Module, GPRS communication module, GPS locating module, CAN drive module, interface parameter display control circuit and power drives
Module, described master chip drives module to electrically connect with engine parameter acquisition module by CAN, and described master chip is also distinguished
With in order to electrically connect with the GPRS communication module of upper machine communication and to be electrically connected in order to position the GPS locating module of harvester position
Connecing, described master chip is connected with the interface parameter display control circuit in order to drive interface parameter to show, it is characterised in that also wrap
Including multiplex roles and drive module, described parameter collection module drives module to access master chip by multiplex roles.
As the presently preferred embodiments, also include that external memorizer, described external memorizer are connected with master chip.Described external deposit
Reservoir uses IS61C1024AL model.
As the presently preferred embodiments, described multiplex roles drives module to be the multiplex roles driving chip of VID6606 model, have to
Few four groups of output interfaces, can simultaneously drive four motors in interface parameter display control circuit.Multiplex roles drives mould
The use arranging minimizing master chip pin of block, reduces master chip and selects cost, and multiplex roles drives module can be concurrently accessed many
Individual parameter collection module, increases extended area and the expansion interface number of master chip, reserves phase for increasing parameter collection module
The expansion interface answered.
As the presently preferred embodiments, described master chip select MC9S12XEP100MAG model master chip, master chip 23 foot with
Multiplex roles drives module CWA pin to connect, and 23 pins of master chip drive the FA pin of module to be connected with multiplex roles, master chip
24 pins drive the CWB pin of module to be connected with multiplex roles, and 7 pins of master chip are connected to multiplex roles and drive the CWD of module to draw
Foot, described multiplex roles drives module at least to have outA interface, outB interface, outC interface and four, outD interface.
As the presently preferred embodiments, described parameter collection module includes generator parameter acquisition module, auger parameter acquisition mould
Block, accumulator parameter detection module, inclination angle detection module, ambient parameter acquisition module, paddy full parameter collection module, threshing parameter
One or more in acquisition module.
Intelligent agricultural machinery high speed processing method based on Internet of Things, comprises the following steps:
S01: system electrification, the principal function of master chip initializes, and intervalometer and interruption are provided with, can bus initialization
The parameters sensor initializing of parameter collection module setting of making zero after having initialized with AD conversion；
S02: master chip creates startup task, keyboard task, instrument display task, parameter acquisition task, serial ports task, number
According to the task of process and GPS location/GPRS communication task；Described instrument display task includes that the rotation counting display of motor is appointed
One or more in business, interface background display task, interface parameter display task, LCD display task；Described parameter acquisition is appointed
Business includes engine parameter acquisition tasks, oil level/oil pressure parameter acquisition task, flood dragon parameter acquisition task, ambient parameter collection
One or more in task；
S03: create task control block and queue control block (QCB), and with the pointer OSQPtr in queue control block (QCB) by all queues
Control block chaining is chained list, is contacted the task code in task control block and task stack by PC pointer and SP pointer and is transported
Row；
S04: by GPS location/GPRS communication task, oil level/oil pressure parameter acquisition task, engine parameter acquisition tasks
And/or flood dragon parameter acquisition task is set to periodically execution task；The rotation of motor is counted display task, the interface back of the body
Scape display task, interface parameter display task, LCD display task and ambient parameter acquisition tasks are set to triggering task；
The priority orders of the task in the priority identifier identification step S03 of S05: master chip, priority identifier
Preferential identification GPS location/GPRS communication task is as the first priority, and the rotation step number counting load of motor is as second
Priority, oil level/oil pressure parameter acquisition task is as third priority, and LCD display task is as the 4th priority；Other tasks
Successive arrangement priority orders；
S06: master chip is by GPS location/GPRS communication task high for priority level and engine parameter acquisition tasks, oil
Position/oil pressure parameter acquisition task, flood dragon parameter acquisition task and/or ambient parameter acquisition tasks quasi-periodic perform task to be passed through
Scheduler priority is dispatched to master chip analysis, processes, is stored in external memorizer and/or is uploaded to host computer, and master chip will
The parameter collection Info that priority level is low passes through scheduler schedules to idle control zone delay process；
S07: when multiple parameter acquisition tasks operationally, when needing mutual ensuring escapement from confliction to call same shared resource,
Master chip gives the priority level of each one semaphore task of parameter acquisition task, and collects these priority levels into signal
Collection, the priority level that master chip obtains semaphore task according to task temporarily rises to all tasks during using shared resource
Limit priority one level higher on, after this semaphore task makes to be finished shared resource release semaphore, then recover should
The priority level that parameter acquisition task is original.
As the presently preferred embodiments, in step S07: when parameter acquisition tasks obtains semaphore task, and accessing altogether
Enjoying after resource terminates, it is necessary to release semaphore, this semaphore task need to call function OSSemPost sending semaphore,
OSSemPost function, before the counter operation to semaphore, first has to check whether the task of also waiting this semaphore,
If it did not, just semaphore enumerator OSEventCnt is added one；Go to run wait if it has, then call scheduler OS_Sched
The task that task medium priority is the highest.
As the presently preferred embodiments, in step S07, share resource when parameter acquisition tasks needs to access an exclusive formula
Time it is necessary to call function OSMutexPend to ask to manage the mutex signal of this resource, if semaphore has signal,
Then meaning that there is no other tasks at present takies shared resource, this parameter acquisition task can continue to run with and be total to this exclusive formula
Enjoying resource to conduct interviews, otherwise parameter acquisition task is put into waiting state, until taking this exclusive formula to share its of resource
His task releases this semaphore.
As the presently preferred embodiments, include in described external memorizer the first register mode area, the second register mode area, the 3rd register mode area and
4th register mode area, described first register mode area is for depositing the parameter acquisition task of real-time update, the registered data of the first register mode area
Can remove after power is turned off, the number of last parameters acquisition tasks before described second register mode area register system power-off
According to, the registered data of the second register mode area is not removed；Described 3rd register mode area is used for depositing real-time system more new data,
The data of the 3rd register mode area can be eliminated after a loss of power；Described 4th register mode area is used for registration operations system data；When the 3rd posts
Deposit after the system update data in district have been downloaded and can move to the 4th register mode area, when the more new data in the 3rd register mode area is transferred
After, the data shifted are removed in the 3rd register mode area.
As the presently preferred embodiments, described operating system first is deposited with what MCB controlled in external memorizer
District, the second register mode area, the 3rd register mode area and the 4th register mode area, described external memorizer internal memory divides the first register mode area, second
The method of register mode area, the 3rd register mode area and the 4th register mode area is, one two-dimensional array of each register mode area definition, in two-dimensional array
Each one-dimension array is exactly a memory block, when scheduler is not in use by a memory block, can it be discharged in time.
Claims (10)
1. Intelligent agricultural machinery high_speed stamping die based on Internet of Things, including master chip, parameter collection module, GPRS communication mould
Block, GPS locating module, CAN drive module, interface parameter display control circuit and electric power driving module, described master chip
With engine parameter acquisition module by CAN drive module electrically connect, described master chip the most respectively with in order to host computer
The GPRS communication module of communication electrically connects and electrically connects in order to position the GPS locating module of harvester position, described master chip
It is connected with the interface parameter display control circuit in order to drive interface parameter to show, it is characterised in that also include that multiplex roles drives
Module, described parameter collection module drives module to access master chip by multiplex roles.
Intelligent agricultural machinery high_speed stamping die based on Internet of Things the most according to claim 1, it is characterised in that also wrap
Including external memorizer, described external memorizer is connected with master chip.
Intelligent agricultural machinery high_speed stamping die based on Internet of Things the most according to claim 1, it is characterised in that described
The multiplex roles driving chip that multiplex roles drives module to be VID6606 model, has at least four group output interfaces, can simultaneously drive
Four motors in interface parameter display control circuit.
Intelligent agricultural machinery high_speed stamping die based on Internet of Things the most according to claim 1, it is characterised in that described
Master chip selects the master chip of MC9S12XEP100MAG model, master chip 23 foot to drive module CWA pin to be connected with multiplex roles,
23 pins of master chip drive the FA pin of module to be connected with multiplex roles, and 24 pins of master chip drive module with multiplex roles
CWB pin connects, and 7 pins of master chip are connected to multiplex roles and drive the CWD pin of module, and described multiplex roles drives module at least
There is outA interface, outB interface, outC interface and four, outD interface.
Intelligent agricultural machinery high_speed stamping die based on Internet of Things the most according to claim 1, it is characterised in that described
Parameter collection module includes generator parameter acquisition module, auger parameter collection module, accumulator parameter detection module, inclination angle inspection
Survey one or more in module, ambient parameter acquisition module, paddy full parameter collection module, threshing parameter collection module.
6. Intelligent agricultural machinery high speed processing method based on Internet of Things, it is characterised in that comprise the following steps:
S01: system electrification, the principal function of master chip initializes, and intervalometer and interruption are provided with, can bus initialization and AD
Transition initialization complete after the parameters sensor initializing of parameter collection module setting of making zero；
S02: master chip creates at startup task, keyboard task, instrument display task, parameter acquisition task, serial ports task, data
Reason task and GPS location/GPRS communication task；Described instrument display task include motor rotation counting display task,
One or more in interface background display task, interface parameter display task, LCD display task；Described parameter acquisition task
Appoint including engine parameter acquisition tasks, oil level/oil pressure parameter acquisition task, flood dragon parameter acquisition task, ambient parameter collection
One or more in business；
S03: create task control block and queue control block (QCB), and with the pointer OSQPtr in queue control block (QCB) by all queue controls
Clamp dog is linked as chained list, is contacted the task code in task control block and task stack by PC pointer and SP pointer and is run
It；
S04: by GPS location/GPRS communication task, oil level/oil pressure parameter acquisition task, engine parameter acquisition tasks and/or
Flood dragon parameter acquisition task is set to periodically execution task；The rotation of motor is counted display task, interface background shows
Show that task, interface parameter display task, LCD display task and ambient parameter acquisition tasks are set to triggering task；
The priority orders of the task in the priority identifier identification step S03 of S05: master chip, priority identifier is preferential
Identification GPS location/GPRS communication task is as the first priority, and the rotation step number counting load of motor is preferential as second
Level, oil level/oil pressure parameter acquisition task is as third priority, and LCD display task is as the 4th priority；Other tasks are follow-up
Priority of disposing order order；
S06: master chip by GPS location/GPRS communication task high for priority level and engine parameter acquisition tasks, oil level/
Oil pressure parameter acquisition task, flood dragon parameter acquisition task and/or ambient parameter acquisition tasks quasi-periodic perform task by adjusting
Degree device priority scheduling to master chip analysis, process, be stored in external memorizer and/or be uploaded to host computer, master chip is by excellent
The parameter collection Info that first rank is low passes through scheduler schedules to idle control zone delay process；
S07: when multiple parameter acquisition tasks operationally, when needing mutual ensuring escapement from confliction to call same shared resource, main core
Sheet gives the priority level of each one semaphore task of parameter acquisition task, and these priority levels is collected as signal collection,
Master chip obtains the priority level of semaphore task according to task and temporarily rises to all tasks during resource using to share
High priority one level higher on, after this semaphore task makes to be finished shared resource release semaphore, then recover this ginseng
The priority level that number acquisition tasks is original.
Intelligent agricultural machinery high speed processing method based on Internet of Things the most according to claim 1, it is characterised in that in step
In rapid S07: when parameter acquisition tasks obtains semaphore task, and after the shared resource of access terminates, it is necessary to release letter
Number amount, this semaphore task send semaphore need to call function OSSemPost, OSSemPost function is at the meter to semaphore
Before number device operation, first have to check whether the task of also waiting this semaphore, if it did not, just semaphore enumerator
OSEventCnt adds one；Go to run the task that wait task medium priority is the highest if it has, then call scheduler OS_Sched.
Intelligent agricultural machinery high speed processing method based on Internet of Things the most according to claim 7, it is characterised in that in step
In rapid S07, when parameter acquisition tasks needs to access when an exclusive formula shares resource it is necessary to call function OSMutexPend
Request manages the mutex signal of this resource, if semaphore has signal, then means that there is no other tasks at present takies
Sharing resource, this parameter acquisition task can continue to run with and this exclusive formula is shared resource and conduct interviews, otherwise parameter acquisition
Task is put into waiting state, shares other tasks of resource release this semaphore until taking this exclusive formula.
Intelligent agricultural machinery high speed processing method based on Internet of Things the most according to claim 7, it is characterised in that described
Include in external memorizer that the first register mode area, the second register mode area, the 3rd register mode area and the 4th register mode area, described first register mode area are used
In depositing the parameter acquisition task of real-time update, the registered data of the first register mode area can be removed after power is turned off, and described second posts
The data of last parameters acquisition tasks before depositing district register system power-off, the registered data of the second register mode area is in power-off
After do not remove；Described 3rd register mode area is used for depositing real-time system more new data, and the data of the 3rd register mode area after a loss of power can be by
Remove；Described 4th register mode area is used for registration operations system data；When the system update data of the 3rd register mode area have downloaded it
After can move to the 4th register mode area, when in the 3rd register mode area after more new data is transferred, the number shifted is removed in the 3rd register mode area
According to.
Intelligent agricultural machinery high speed processing method based on Internet of Things the most according to claim 9, it is characterised in that institute
State operating system with MCB to the first register mode area controlling in external memorizer, the second register mode area, the 3rd register mode area and
4th register mode area, divides the first register mode area, the second register mode area, the 3rd register mode area and the 4th are deposited in described external memorizer internal memory
The method in district is, one two-dimensional array of each register mode area definition, and each one-dimension array in two-dimensional array is exactly a memory block,
When scheduler is not in use by a memory block, can in time it be discharged.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593305A (en) * | 2018-04-19 | 2018-09-28 | 浙江大学 | A kind of agricultural machinery diesel engine real time execution monitoring of working condition instrument |
| CN109428946A (en) * | 2017-08-31 | 2019-03-05 | Abb瑞士股份有限公司 | Method and system for Data Stream Processing |
| CN114323096A (en) * | 2021-12-10 | 2022-04-12 | 中国船舶重工集团公司第七一九研究所 | General type process parameter display instrument |
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2016
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109428946A (en) * | 2017-08-31 | 2019-03-05 | Abb瑞士股份有限公司 | Method and system for Data Stream Processing |
| EP3451626A1 (en) * | 2017-08-31 | 2019-03-06 | ABB Schweiz AG | Method and system for data stream processing |
| US10798011B2 (en) | 2017-08-31 | 2020-10-06 | Abb Schweiz Ag | Method and system for data stream processing |
| CN108593305A (en) * | 2018-04-19 | 2018-09-28 | 浙江大学 | A kind of agricultural machinery diesel engine real time execution monitoring of working condition instrument |
| CN114323096A (en) * | 2021-12-10 | 2022-04-12 | 中国船舶重工集团公司第七一九研究所 | General type process parameter display instrument |
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