CN109459960A - Internet of Things acquisition control system and control method based on NB-IoT - Google Patents
Internet of Things acquisition control system and control method based on NB-IoT Download PDFInfo
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- CN109459960A CN109459960A CN201811511616.XA CN201811511616A CN109459960A CN 109459960 A CN109459960 A CN 109459960A CN 201811511616 A CN201811511616 A CN 201811511616A CN 109459960 A CN109459960 A CN 109459960A
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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
- G05B2219/25—Pc structure of the system
- G05B2219/25314—Modular structure, modules
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Abstract
The invention discloses a kind of Internet of Things acquisition control system and method based on NB-IoT, a kind of Internet of Things acquisition control system based on NB-IoT, it include main control unit, respectively Data Management Unit, time management unit, command process unit, data acquisition unit, system parameter administrative unit and NB-IoT communications management unit connected to the main control unit including MCU and the power supply mould group being connect with MCU, acquisition mould group and NB mould group, MCU.And the control method of the Internet of Things acquisition control system based on NB-IoT, comprising: system initialization and systematic parameter configuration；Connection is established with NB-IoT platform；Into working cycles, working cycles include acquisition data, upload data and processing order.Acquisition time of the present invention is accurate, no cumulative errors, and FRAM data storage medium cooperation data manipulation administrative mechanism is realized the safety of data and reduces the Loss Rate of data, Information Security is high.
Description
Technical field
The present invention relates to Internet of Things fields of communication technology, are a kind of Internet of Things acquisition controls based on NB-IoT specifically
System and method processed.
Background technique
Existing Internet of Things acquisition equipment is divided into line acquisition and two kinds of wireless collection, wired acquisition mode peace by connection type
Dress and maintenance cost are high, limited coverage area.Technology for wireless long distance transmission has GPRS, CDMA, LTE, NB-IoT etc.,
Wherein, compared to other wireless collection modes, NB-IoT has the outstanding features such as wide covering, low-power consumption, low cost, big connection,
It is more suitable for the little internet of things data acquisition of amount of communication data.The existing acquisition equipment based on NB-IoT technology is mainly with simple
Acquisition --- upload replace traditional manual operation, on the one hand, frequency acquisition is low, usually January one twice, to acquisition when
Between accuracy without too big requirement, acquisition time precision is lower；On the other hand, in this simple acquisition --- upload application
It is lower to the sensibility of loss of data in scene, without reliable data safety management mechanism.In recent years, with Internet of Things and
The combination of the development of big data, the two will propose compared with strict requirements acquisition time accuracy and data loss rate, existing
NB-IoT acquisition equipment be difficult to meet demand.
Summary of the invention
The purpose of the present invention is to provide a kind of Internet of Things acquisition control system and control method based on NB-IoT, is used for
Solve the problems, such as that acquisition time accuracy is not high in the prior art and data loss rate is larger.
The present invention is solved the above problems by following technical proposals:
A kind of Internet of Things acquisition control system based on NB-IoT, including MCU and the power supply mould group being connect with MCU, acquisition
Mould group and NB mould group, the MCU include main control unit, the Data Management Unit connecting respectively with the main control unit, time pipe
Manage unit, command process unit, data acquisition unit, system parameter administrative unit, NB-IoT communications management unit and house dog
Unit, in which:
Data Management Unit, for setting the data management mechanism that will not be lost before upload for guaranteeing data, and
By collected data storage to storage medium；
Time management unit, for managing the time of local RTC and control data acquisition each time；
Command process unit, the order issued for parsing and sending NB-IoT platform；
Data acquisition unit communicates with the equipment being collected for controlling acquisition mould group and obtains data；
System parameter administrative unit, for the operating parameter of management system, including initial work parameter when system starts,
It inspection parameter legitimacy and receives and executes system parameter management after configuration order；
NB-IoT communications management unit receives the order that issues of NB-IoT platform and reports data for controlling NB mould group
To NB-IoT platform；
Main control unit: for coordinating above-mentioned each unit.
Further, the MCU is also connected with debugging/configuration mould group, the debugging/configuration mould group for MCU with it is upper
Machine communication.
Further, the data management mechanism specifically includes:
A, after acquisition unit completes successively data acquisition, flash is stored data into immediately；
B, setting NB-IoT communications management unit is uniquely to possess the unit for deleting data permission, and collected data are being deposited
It is stored in storage media by segment, just allows to execute segment after the data of segment successfully upload and remove number
According to operation；
C, in each process operation data, data are read from flash again if there is exception.
The control method of Internet of Things acquisition control system based on NB-IoT, comprising:
Step S100: system initialization and systematic parameter configuration；
Step S200: connection is established with NB-IoT platform；
Step S300: entering working cycles, and the working cycles include acquisition data and upload data.
Further, the step S300 is specifically included:
Step S310: checking acquisition mark and uploads mark, when acquiring flag set, clear flag immediately；
Step S320: acquisition data send order to equipment by RS485 bus and obtain device data, first will acquire
Data be stored in caching, then by Protocol reassembling data and be stored in flash, empty the cache；
Step S330: waiting flag set to be uploaded, when uploading flag set, clear flag immediately；
Step S340: data are uploaded: reads the data of a segment unit from flash, it will be in data by NB mould group
Reach NB-IoT platform；
Step S350: waiting receiveing the response for NB-IoT platform to be received, after receiving correct receive the response, indicates in data
It passes successfully, deletes corresponding data in flash；Return step S310.
It further, further include reconfiguring MCU before checking acquisition mark and uploading mark in the step S310
In watchdog unit.
Further, it sets NB mould group in the step S350 receiving preservation mode, when server-side passes through NB-IoT
When platform transmitting order to lower levels, NB mould group saves the command messages received, and MCU is waited to take away.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
Acquisition time of the present invention is accurate, no cumulative errors, and FRAM data storage medium is cooperated data manipulation administrative mechanism
It realizes the safety of data and reduces the Loss Rate of data, Information Security is high.
Detailed description of the invention
Fig. 1 is system principle diagram of the invention；
Fig. 2 is flow chart of the invention.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
Embodiment 1:
In conjunction with shown in attached drawing 1, a kind of Internet of Things acquisition control system based on NB-IoT, comprising: including two large divisions: one
It is peripheral function part, comprising: power supply mould group, debugging/configuration mould group, acquisition mould group and NB mould group, NB mould group communication link are connected to
NB-IoT platform, second is that the management control section being made of MCU, realizes the various functions of acquisition control device, specifically include: main
Control unit, Data Management Unit, time management unit, command process unit, data acquisition unit, system parameter administrative unit,
NB-IoT communications management unit and watchdog unit and watchdog unit, in which:
(1) Data Management Unit
Data Management Unit is responsible for managing collected data, using FRAM as data storage medium, even if unexpected disconnected
Electricity will not lose stored data, and use data processing mechanism, guarantee to adopt in the case where memory is not filled with
Collecting data will not lose before successfully uploading, and improve Information Security, reduce the probability for losing data.Data management mechanism by
Three Xiang Zucheng below:
A. it first time memory mechanism: after acquisition unit completes a data acquisition, stores data into immediately
flash；
B. permission control+condition controlling mechanism: NB-IoT communications management unit is uniquely to possess the list for deleting data permission
Member；Collected data are stored in storage medium by segment, allow to execute the operation that clears data to each segment
Unique conditional is that the data on the segment successfully upload；
C. abnormal stressed mechanism: in each process operation data, if occur it is abnormal will again from flash read data into
Row processing, prevents exception from data being caused to generate unpredictable change.
(2) time management unit
Time management unit is responsible for managing local RTC, and main there are two effects: guaranteeing the accuracy of local real-time clock；
Control the time acquired each time.
(3) command process unit
Command process unit is responsible for the order that analysis service end is issued by NB-IoT platform, and calls corresponding function list
Member completes the operation of order request.
(4) data acquisition unit
Data acquisition unit is responsible for communicating with collected equipment, obtains data from specified equipment.
(5) system parameter administrative unit
System parameter administrative unit is responsible for managing acquisition control device items operating parameter, comprising: at the beginning of in system starting
Beginningization running parameter, inspection parameter legitimacy；Corresponding system ginseng is executed after long-range or serial ports configuration order receiving
Number management.
(6) NB-IoT communications management unit
NB-IoT communications management unit mainly completes two tasks: first is that data are reported to NB-IoT platform；Second is that connecing
Receive the order that server-side is issued by NB-IoT platform.
(7) main control unit
MCU Main Processing Unit is responsible for coordinating and managing above-mentioned functional unit, and system is maintained to operate normally.
(8) watchdog unit
It is responsible for providing watchdog reset function.
Embodiment 2:
Referring to figs. 1 and 2, a kind of control method of the Internet of Things acquisition control system based on NB-IoT, comprising:
(1) initialize system: the data and hardware elementary diagram provided according to hardware vendor configures related register, mainly
Have and closes watchdog unit, configuration system clock RTC, opens interrupters, initialization serial ports, initialization memory block flash etc.；
(2) systematic parameter configuration: output current software version information obtains from storage medium and checks system parameter, this
Stage is supported from debugging serial port setting system parameter.The system parameter of configuration include protocol type, frequency acquisition, upload frequencies,
Number of devices, platform IP address and the port numbers of acquisition, the address etc. of each equipment to be collected；
(3) establish NB network connection: main control unit sends series of instructions to NB mould group, establishes and connects with NB-IoT platform
It connects, comprising: reset NB mould group, check NB mould group working condition, the automatic registered network of setting, the current NCDP information of inquiry, read
When SIM is with opening radio frequency, obtaining operator types, obtain NB mould group IMEI string code, adhere to and be registered to NB network, acquisition network
Between；
(4) acquisition uploads for the first time: the time of acquisition for the first time is determined according to system parameter and local real-time clock, to the
When one acquisition time, greenwich time is obtained by NB network, calculates the compensation time, is calculated next time in conjunction with system parameter
The time of acquisition reconfigures RTC and its Alarm, then executes one acquisition and upload；It is uploaded using the set time, without
It is the method for calculating time interval, avoids the accumulation of error time, makes subsequent operation not by the shadow of a preceding operation failure
It rings, realizes the accurate control to acquisition management；
(5) enter working cycles: acquisition control device enters working cycles, and each circulation successively performs the following operation: weight
New configuration watchdog unit parameter checks that acquisition upload indicates and executes relevant operation and inquiry and execute order.Work as acquisition
When mark or upload flag set, clear flag, executes acquisition operation or upload operation at once；When checking effective order,
Order is executed, order includes: configuration parameter, reads system parameter and equipment control command.After relevant operation, entrance is next
Secondary circulation；
(6) data are acquired: according to the information for being adopted device manufacturer's offer, order being sent to equipment by RS485 bus and is obtained
Device data is taken, the data deposit caching that first will acquire, then by Protocol reassembling data and it is stored in flash, finally empty the cache；
(7) upload data: the data for reading a segment unit from flash pass through NB mould group in a manner of instruction
Upload the data to NB-IoT platform, then etc. NB-IoT platform to be received is receiveed the response, when receive correctly receive the response after,
It indicates that data upload successfully, deletes corresponding data in flash；
In working cycle process, further includes:
(8) order management: setting NB mould group to receive preservation mode, when server-side passes through NB-IoT platform transmitting order to lower levels
When, NB mould group saves the command messages received, and MCU is waited to take away.When executing inquiry operation, MCU passes through NB mould group
Instruction obtains the command messages, then parses and executes relevant operation.
(9) local real time clock management:
A. before entering working cycles: sending AT instruction by NB mould group, greenwich time is obtained from NB network, according to holding
Row process and device characteristics determine the compensation time, and then calculate the setting time of RTC, the money then provided according to MCU manufacturer
Material configures related register, and RTC time is arranged；
B. after entering working cycles: after the mark of acquisition upload each time is set, first obtaining Greenwich mean time from NB network
Between, the setting time is calculated in conjunction with the compensation time；The next Alarm time is calculated according to time last time Alarm, then RTC is set
And Alarm, then the operation of mark is executed, the interruption of Alarm next time is continued waiting for after the completion of operation.Setting local RTC every time
Clock can determine time bias value according to corresponding process, last true according to the time obtained from NB network and compensation time
Time is set surely.
(10) data management: use FRAM (ferroelectric RAM) as data storage medium, even if accident power-off
Stored data will not be lost, and cooperate data management mechanism, significantly enhance Information Security, storage medium holds
Amount is selected according to concrete application.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair
Bright preferable embodiment, embodiment of the present invention are not limited by the above embodiments, it should be appreciated that those skilled in the art
Member can be designed that a lot of other modification and implementations, these modifications and implementations will fall in principle disclosed in the present application
Within scope and spirit.
Claims (7)
1. a kind of Internet of Things acquisition control system based on NB-IoT, which is characterized in that including MCU and the power supply being connect with MCU
Mould group, acquisition mould group and NB mould group, the MCU include main control unit, the data management list connecting respectively with the main control unit
Member, time management unit, command process unit, data acquisition unit, system parameter administrative unit, NB-IoT communications management unit
And watchdog unit, in which:
Data Management Unit for setting the data management mechanism that will not be lost before upload for guaranteeing data, and will be adopted
The data collected are stored to storage medium；
Time management unit, for managing the time of local RTC and control data acquisition each time；
Command process unit, the order issued for parsing and sending NB-IoT platform；
Data acquisition unit communicates with the equipment being collected for controlling acquisition mould group and obtains data；
System parameter administrative unit is checked for the operating parameter of management system, including initial work parameter when system starting
It parameter legitimacy and receives and executes system parameter management after configuration order；
NB-IoT communications management unit receives the order that issues of NB-IoT platform and is reported to data for controlling NB mould group
NB-IoT platform；
Main control unit: for coordinating above-mentioned each unit.
2. the Internet of Things acquisition control system according to claim 1 based on NB-IoT, which is characterized in that the MCU is also
It is connected with debugging/configuration mould group, the debugging/configuration mould group is communicated for MCU with host computer.
3. the Internet of Things acquisition control system according to claim 1 based on NB-IoT, which is characterized in that the data pipe
Reason mechanism specifically includes:
A, after acquisition unit completes successively data acquisition, flash is stored data into immediately；
B, setting NB-IoT communications management unit is uniquely to possess the unit for deleting data permission, and collected data are situated between in storage
It is stored in matter by segment, just allows to execute the behaviour that clears data to segment after the data of segment successfully upload
Make；
C, in each process operation data, data are read from flash again if there is exception.
4. using the control method of the Internet of Things acquisition control system based on NB-IoT as described in claim 1, feature exists
In, comprising:
Step S100: system initialization and systematic parameter configuration；
Step S200: connection is established with NB-IoT platform；
Step S300: entering working cycles, and the working cycles include acquisition data and upload data.
5. the control method of the Internet of Things acquisition control system according to claim 4 based on NB-IoT, which is characterized in that
The step S300 is specifically included:
Step S310: checking acquisition mark and uploads mark, when acquiring flag set, clear flag immediately；
Step S320: acquisition data send order to equipment by RS485 bus and obtain device data, the number that first will acquire
It is cached according to deposit, then by Protocol reassembling data and is stored in flash, emptied the cache；
Step S330: waiting flag set to be uploaded, when uploading flag set, clear flag immediately；
Step S340: data are uploaded: reads the data of a segment unit from flash, is uploaded to data by NB mould group
NB-IoT platform；
Step S350: waiting receiveing the response for NB-IoT platform to be received, when receive correctly receive the response after, indicate data upload at
Function deletes corresponding data in flash；Return step S310.
6. the control method of the Internet of Things acquisition control system according to claim 5 based on NB-IoT, which is characterized in that
It further include the house dog reconfigured in MCU before checking acquisition mark and uploading mark in the step S310.
7. the control method of the Internet of Things acquisition control system according to claim 5 based on NB-IoT, which is characterized in that
It sets NB mould group in the step S350 to receive preservation mode, when server-side passes through NB-IoT platform transmitting order to lower levels, NB
Mould group saves the command messages received, and MCU is waited to take away.
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| CN110943865A (en) * | 2019-12-02 | 2020-03-31 | 国网智能科技股份有限公司 | Method and device for diagnosing equipment fault time and related equipment |
| CN111817897A (en) * | 2020-07-17 | 2020-10-23 | 四川长虹电器股份有限公司 | Acquisition transmission monitoring system and acquisition transmission monitoring method capable of configuring gateway |
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