CN107357195A - A kind of low-power consumption grain feelings measuring system based on STM32 - Google Patents
A kind of low-power consumption grain feelings measuring system based on STM32 Download PDFInfo
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- CN107357195A CN107357195A CN201710451033.1A CN201710451033A CN107357195A CN 107357195 A CN107357195 A CN 107357195A CN 201710451033 A CN201710451033 A CN 201710451033A CN 107357195 A CN107357195 A CN 107357195A
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- slave station
- stm32
- signal
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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
- G05B19/0421—Multiprocessor system
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- 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
- G05B2219/21014—Interface, module with relays
-
- 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
- G05B2219/22—Pc multi processor system
- G05B2219/2231—Master slave
-
- 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
- G05B2219/25251—Real time clock
-
- 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
- G05B2219/25252—Microprocessor
Abstract
The present invention relates to a kind of low-power consumption grain feelings measuring system based on STM32, including moisture and temperature measurement unit, data processing unit, GPRS data transmission unit and data display unit, as shown in Figure 1.The signal that slave station collects measuring unit is sent to main website, then is sent to host computer remote server by main website, and wherein slave station just enters resting state after having launched signal, needs transmission signal until next time.The present invention has the characteristics that cost is cheap, easy to use, signal long-distance transmissions, can be achieved solve the problems, such as that measurement efficiency is low, workload is big to difference progress moisture and temperature survey in real time.
Description
Technical field
The present invention relates to a kind of grain feelings measuring system, more particularly to a kind of low-power consumption Long-range Data Transmission based on
STM32 low-power consumption grain feelings measuring system, the moisture collected and temperature signal can be converted into frequency signal by it, by slave station
Main website is sent to, and remote server is sent to by main website.
Background technology
China increases year by year as Chan Liang big countries, grain yield, and the storage of grain also becomes more and more important, and country is to grain
The storage of food is stored using warehouse more, and in storing process, the various monitoring to grain can only be entered by manual type
OK, as the development of technology of Internet of things, the intellectuality of agricultural production are more and more valued by the people.In recent years, country is to agricultural
The input of automation and IT application to agriculture equally also promotes the development of reading intelligent agriculture.Silo is as the important field stored up grain
Institute, its existing grain feelings thermometric and moisture, functions of the equipments are single, can only complete each system operation, can not realize over all Integration and
Association control, a whole set of grain are with one's heart at the no Comprehensive Control of system, only carry out every statistics and operation, and each sensor by personnel
Energy consumption it is higher, charging trouble.
The content of the invention
It is an object of the present invention to a kind of low-power consumption grain feelings measuring system based on STM32 is provided for drawbacks described above, can
Progress moisture real-time to difference and temperature survey are realized, solves the problems, such as that measurement efficiency is low, workload is big, realizes low-power consumption
And long-distance transmissions.
To achieve the above object, the present invention is as follows using technical scheme：
A kind of low-power consumption consumption grain feelings measuring system based on STM32, it is characterised in that：Including
Measuring unit, data processing unit is sent to for gathering moisture and temperature signal and being converted into electric signal；
Data processing unit, using STM32L151 as core processor, processing is carried out to the electric signal received and is converted into frequency
Rate signal is sent to si4432 data transmission units；
Si4432 data transmission units, for reception signal and radio to main website；
Master station signal gathers and transmission unit, and using STM32L151 as core processor, slave station signal is received simultaneously by si4432
By STM32 processing, by sim808 modules by signal by GPRS transmission to remote server port；
Data display unit, for receiving the process signal of data processing unit transmission and being shown.
Further, described moisture measurement uses MC1648 acquisition chip；
Further, described temperature survey uses DS18B20 digital temperature sensors；
Further, No. 1 pin of the MC1486 and No. 8 pins are coupled with copper ring and form LC oscillating circuits, vibration
Produce sine wave and be converted into the relatively low square wave letter of frequency by HC4040A and MC12080 frequency dividers and LMV7239M7X comparators
Number, it is transferred to STM32L151；
Further, the moisture and temperature measurement unit and STM32L151 data processing units form slave station；
Further, the STM32L151 of slave station normal works in gathered data, and will be collected by si4432
Signal is sent to main website；
Further, si4432 transceivers EZ-RadioPRO uses the RF transceiver si4432 of SILABS companies,
Si4432 is connected with ARMSTM32L151 by SPI interface, specifically ARMSTM32L151 SPI mouths pin respectively with si4432
SCLK, SDI, SDO, NSEL pin connection, SDN is enable signal input, and SCLK is clock signal input terminal, SDI and SDO
Input/output terminal as data；In addition to SPI interface, si4432 NIRQ pins, SDN pins are respectively with STM32L151's
PC5, PC4 pin connect, and the interruption for CPU controls si4432 is enabled and si4432 chip enables；Si4432 VCC pin
Connect the 3.3V outputs of STM32L151 single-chip microcomputers, si4432 GND and the GND ground connection of single-chip microcomputer；
Further, the STM32 of the slave station enters standby mode in the gap of gathered data, passes through what is pre-set
RTC alarm clock timings wake up, to the measurement data within STM32 standby periods, by giving pin PA0 mono- rising edge, so that it may call out
Wake up STM32；
Further, the main website is total data collector, core processor STM32L151, is received by si4432
Slave station signal, and comprising sim900 wireless modules, for GPRS wireless telecommunications；
Further, the GPRS of the data transfer mode of main website and server based on sim900 wireless modules is wirelessly passed
Defeated, STM32 serial ports pin PA2 and PA3 and sim900 Rx and Tx connection, sim900 SIM card interface is the SIM card of standard
Interface, it is directly inserted into SIM card and is communicated；
Beneficial effects of the present invention：The low-power consumption grain feelings measuring system of the present invention is using MC1486 and DS18B20 as water
Divide and temperature measurement unit, main website and slave station are converted into moisture and temperature signal using STM32L151 as core processor
Frequency signal is sent to main website by si4432 by slave station, then by main website through GPRS transmission to server, wherein slave station
STM32L151 enters sleep pattern after collecting signal, and the RTC clock defined by inside wakes up, so circulation.It may be implemented in grain
Real-time moisture and temperature survey are carried out to difference in storehouse, solve the problems, such as that measurement efficiency is low, workload is big, in addition the biography
Sensor has the characteristics that low in energy consumption, cost is cheap, easy to use, signal long-distance transmissions, while data can pass through GPRS transmission
To host computer such as PC staff can be made to carry out process monitoring.
Brief description of the drawings
Fig. 1 is a kind of module connection diagram of low-power consumption grain feelings measuring system based on STM32 of the present invention.
Fig. 2 is a kind of sensor probe configuration block diagram of low-power consumption grain feelings measuring system based on STM32 of the present invention
Fig. 3 is that a kind of main website of low-power consumption grain feelings measuring system based on STM32 of the present invention broadcasts flow chart
Fig. 4 is a kind of slave station communication flow figure of low-power consumption grain feelings measuring system based on STM32 of the present invention
Embodiment
The low-power consumption grain feelings measuring system based on STM32 of the present invention is a kind of achievable contactless low-power consumption moisture and temperature
The system that degree measurement is transmitted with si4432 and GPRS data.
As shown in figure 1, the low-power consumption grain feelings measuring system of the invention based on STM32, including：Moisture and temperature survey list
Member, data processing unit, si4432 data transmission units, master station signal collection and transmission unit, data display unit.
Measuring unit uses MC1648 and DS18B20 acquisition chips in the present invention, and the core processor of main website and slave station is equal
Using STM32L151, the frequency signal output unit of slave station using si4432 wireless transmitter modules, master station signal collection with
Transmission unit receives slave station signal using si4432, and remote server is sent to using GPRS.
The slave station of the present invention and the core processor of main website are STM32L151, and it is the ARM322 positions based on professional standard
Reduced instruction structure --- the newest kernel Cortex-M3 of ARM companies.The kernel is specially to be designed at meeting collection high-performance, low
Power consumption, in real time application, there is requirement of the competitive price in the built-in field of one.Its clock frequency is up to 72MHZ, interior
Embedding up to 128KB FLASH program storages, and abundant I/O interface can support 3.3V and 5V voltages, there is extremely strong equipment
Driving force.This processing utensil has the advantages that the speed of service is fast, reliability is high, aboundresources and low in energy consumption, can extensive use
In fields such as handheld device, Industry Control and motor controls.
In order to further understand embodiments of the present invention, the moisture of the present invention is introduced respectively below in conjunction with accompanying drawing
And temperature measurement unit, data processing unit, data transmission unit, the electric connecting mode between data display unit.
As shown in Fig. 2 it is sensor probe configuration block diagram.Moisture measurement unit uses MC1648 acquisition chip, temperature
Measurement uses DS18B20 temperature sensors, and they are coupled with copper ring and form LC oscillating circuits, and vibration produces sine wave and passed through
HC4040A and MC12080 frequency dividers and LMV7239M7X comparators are converted into the relatively low square-wave signal of frequency, are transferred to STM32.
For the frequency signal output unit of slave station using si4432 wireless transmitter modules, it is wireless with the si4432 of main website
Receiving module is carried out data transmission by broadcast communication protocol.
Main website broadcasts flow chart and slave station communication flow figure such as Fig. 3 and Fig. 4.
Main website is constantly broadcasted first, and the information of broadcast is tributary address configuration information, such as AY3600, wherein the 1st
Byte representation slave station encodes, such as A, B, C；2nd 2 byte indicates whether the change cycle, and Y represents change, and N represents not change；
Cycle after the change of 3rd~6 byte representation, such as 3600, that is, represent 1h；
By taking main website and slave station A communication as an example, main website broadcast address configuration information AY3600, all slave stations all connect first
The information is received, each slave station takes out the 1st byte and itself encoding ratio pair, and this information is the letter of this TV station measuring unit if identical
Breath, preparation is given up if different and receives next information；The slave station A feedbacks character A of matching is sentenced to main website, main website to this
It is disconnected, if feedback character is identical with slave station coding, etc. slave station information to be received；Then slave station sends data acquisition to main website immediately
Information；Main website receives data message and judged, if data are correct, main website feeds back character Y to slave station, and slave station enters dormancy
State, if main website feeds back character N to slave station, slave station returns and resends data acquisition information, if continuously receiving more than 5 times N,
Slave station stops sending data acquisition information, waits main website to broadcast next time；
Wherein enter sleep pattern after the STM32L151 collection signals of slave station, the RTC clock defined by inside wakes up, such as
This circulation.It may be implemented in and carry out real-time moisture and temperature survey in silo to difference, solution measurement efficiency is low, workload
The problem of big.
The si4432 of main website receives slave station signal, and GPRS is carried out by core processor STM32L151 sim900 modules
Wireless telecommunications.The data transfer mode of main website and server is that the GPRS based on sim900 wireless modules is wirelessly transferred, STM32's
Serial ports pin PA2 and PA3 and sim900 Rx and Tx connection, sim900 SIM card interface is the SIM card interface of standard, can be with
SIM card is inserted directly into be communicated.
Power supply power supply master chip is LT3652HV, and it is a high integration of Linear Techn Inc.'s production, multi-functional to fill
Electric managing chip, 4.95V to 34V wide input range can be received.The voltage of output is adjustable, high voltage utilization, can be
Other measurements and control element provide safe and reliable supply voltage.
Claims (5)
1. a kind of low-power consumption grain feelings measuring system based on STM32, including moisture and temperature measurement unit, for gather moisture and
Temperature signal is simultaneously converted into electric signal and is sent to data processing unit；Data processing unit, using STM32L151 as core processing
Device, processing is carried out to the electric signal received it is converted into frequency signal to be sent to si4432 data transmission units, si4432 data
Transmission unit is used for reception signal and radios to main website；Master station signal collecting unit, using STM32L151 as core processing
Device, slave station signal is received and by STM32 processing by si4432, by sim808 modules by signal by GPRS transmission to long-range clothes
Business device port；Data display unit, for receiving the process signal of data processing unit transmission and being shown.
A kind of 2. low-power consumption grain feelings measuring system based on STM32 according to claim 1, it is characterised in that：Data are adopted
During collection, each module normal work of slave station, after data acquisition finishes and is transferred to main website, STM32 enters standby mode, by pre-
The RTC alarm clock timings first set wake up, to the measurement data within STM32 standby periods, by giving pin PA0 mono- rising
Edge, so that it may wake up STM32.
A kind of 3. low-power consumption grain feelings measuring system based on STM32 according to claim 1, it is characterised in that：Moisture is surveyed
Amount uses MC1648 acquisition chips, and temperature survey uses DS18B20 temperature sensors, their pin is coupled with into copper ring structure
Into LC oscillating circuits, vibration produces sine wave and is converted into by HC4040A and MC12080 frequency dividers and LMV7239M7X comparators
The relatively low square-wave signal of frequency, is transferred to STM32；Described measuring unit and STM32 forms the slave station of the grain feelings measuring system；
The frequency signal output unit of slave station uses si4432 wireless transmitter modules.
A kind of 4. low-power consumption grain feelings measuring system based on STM32 according to claim 3, it is characterised in that：Main website is
Total data collector, for receiving slave station signal and sending host computer remote server to；Its core processor is equally
STM32；Si4432 is additionally included to be used for receiving slave station signal；Sim900 wireless modules, for GPRS wireless telecommunications；Above-mentioned master
It is that the GPRS based on sim900 wireless modules is wirelessly transferred to stand with the data transfer mode of server, STM32 serial ports pin PA2
Connected with PA3 and sim900 Rx and Tx, sim900 SIM card interface is the SIM card interface of standard, is directly inserted into SIM
Card is communicated.
A kind of 5. low-power consumption grain feelings measuring system based on STM32 according to claim 4, it is characterised in that：Main website and
Radio communication between slave station, it is that the information transfer of main website and slave station is realized by customized si4432 communication protocols；Institute
Stating the information of main website includes tributary address configuration information and feeds back to the confirmation of slave station；Wherein tributary address configuration information is
6 bytes, after the 1st byte representation slave station coding, the 2nd byte judge whether to change cycle, the 3rd~6 byte to change
Periodic quantity；The confirmation for feeding back to slave station is 1 byte, and Y represents that main website receives that slave station information is correct, and N represents that main website is received
The information arrived is incorrect；The information of the slave station includes feeding back to the slave station coding of main website and the data message of slave station collection；Its
In feed back to main website slave station coding include a byte；The data message of slave station collection includes 57 bytes, and the 1st byte is
Beginning flag symbol, the 2nd~12 byte are the absolute address of slave station equipment number, the 13rd~26 byte is temporal information, the 27th
~46 bytes be collection 2 groups of moisture and temperature data, the 47th~56 be lithium battery dump energy, the 57th byte be end
Identifier.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710451033.1A CN107357195A (en) | 2017-06-15 | 2017-06-15 | A kind of low-power consumption grain feelings measuring system based on STM32 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710451033.1A CN107357195A (en) | 2017-06-15 | 2017-06-15 | A kind of low-power consumption grain feelings measuring system based on STM32 |
Publications (1)
| Publication Number | Publication Date |
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| CN107357195A true CN107357195A (en) | 2017-11-17 |
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| CN201710451033.1A Withdrawn CN107357195A (en) | 2017-06-15 | 2017-06-15 | A kind of low-power consumption grain feelings measuring system based on STM32 |
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|---|---|---|---|---|
| JPH07242337A (en) * | 1994-01-12 | 1995-09-19 | Japan Energy Corp | Grain fitting monitoring method and device |
| CN101848246A (en) * | 2010-07-05 | 2010-09-29 | 河南工业大学 | Grain cabin capacity information wireless monitoring system, monitoring method and networking method |
| CN102013024A (en) * | 2010-11-04 | 2011-04-13 | 南通大学 | Grain depot and grain situation wireless monitoring system based on multistage RFID reader-writer network |
| CN102419192A (en) * | 2011-08-04 | 2012-04-18 | 洛阳理工学院 | Granary grain status monitoring system based on wireless sensing network |
| CN102607642A (en) * | 2011-12-28 | 2012-07-25 | 中兴长天信息技术（南昌）有限公司 | Grain condition monitoring system based on wireless Ad Hoc network |
| CN104697641A (en) * | 2015-03-17 | 2015-06-10 | 太原市同心得科贸有限公司 | STM32-based (STMicroelectronics 32) infrared temperature sensor |
| CN204576211U (en) * | 2015-01-07 | 2015-08-19 | 合肥弘恩机电科技有限公司 | A kind of wireless grain condition analysis based on Modbus agreement and Measurement and Control System |
| CN205353824U (en) * | 2016-02-01 | 2016-06-29 | 山西久昌科技有限公司 | No line number word grain feelings system of observing and controling |
| CN106643867A (en) * | 2016-09-20 | 2017-05-10 | 华中科技大学 | Embedded processor-based Ethernet granary multipoint temperature and humidity detection system |
-
2017
- 2017-06-15 CN CN201710451033.1A patent/CN107357195A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07242337A (en) * | 1994-01-12 | 1995-09-19 | Japan Energy Corp | Grain fitting monitoring method and device |
| CN101848246A (en) * | 2010-07-05 | 2010-09-29 | 河南工业大学 | Grain cabin capacity information wireless monitoring system, monitoring method and networking method |
| CN102013024A (en) * | 2010-11-04 | 2011-04-13 | 南通大学 | Grain depot and grain situation wireless monitoring system based on multistage RFID reader-writer network |
| CN102419192A (en) * | 2011-08-04 | 2012-04-18 | 洛阳理工学院 | Granary grain status monitoring system based on wireless sensing network |
| CN102607642A (en) * | 2011-12-28 | 2012-07-25 | 中兴长天信息技术（南昌）有限公司 | Grain condition monitoring system based on wireless Ad Hoc network |
| CN204576211U (en) * | 2015-01-07 | 2015-08-19 | 合肥弘恩机电科技有限公司 | A kind of wireless grain condition analysis based on Modbus agreement and Measurement and Control System |
| CN104697641A (en) * | 2015-03-17 | 2015-06-10 | 太原市同心得科贸有限公司 | STM32-based (STMicroelectronics 32) infrared temperature sensor |
| CN205353824U (en) * | 2016-02-01 | 2016-06-29 | 山西久昌科技有限公司 | No line number word grain feelings system of observing and controling |
| CN106643867A (en) * | 2016-09-20 | 2017-05-10 | 华中科技大学 | Embedded processor-based Ethernet granary multipoint temperature and humidity detection system |
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Application publication date: 20171117 |
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