CN109274775A - A kind of modular status intelligence sensing terminal with internet of things functional - Google Patents
A kind of modular status intelligence sensing terminal with internet of things functional Download PDFInfo
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- CN109274775A CN109274775A CN201811371979.8A CN201811371979A CN109274775A CN 109274775 A CN109274775 A CN 109274775A CN 201811371979 A CN201811371979 A CN 201811371979A CN 109274775 A CN109274775 A CN 109274775A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/26—Special purpose or proprietary protocols or architectures
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Abstract
The invention discloses a kind of, and the modular status with internet of things functional intelligently senses terminal comprising: microprocessor control module, condition intelligent sensing module, wireless communication module, GPS positioning module and human-computer interaction module；GPS positioning module sends the location information to microprocessor control module by serial communication interface for providing the location information of terminal node；The condition intelligent sensing module is sent to microprocessor control module for obtaining sensor sensing signal collected；The microprocessor control module is used to automatically configure driving corresponding with the sensing signal according to the parameter configuration of the human-computer interaction module, and sensing signal is handled to obtain target data, and target data is packaged into data packet by data packetizing protocol and is sent to wireless communication module, the wireless communication module is connected with the microprocessor control module, for data packet to be wirelessly transmitted to wireless gateway device.
Description
Technical field
The present invention relates to environmental monitoring technology field more particularly to a kind of modular status intelligence with internet of things functional
Terminal is sensed, which is built-in terminal, the application suitable for Intellisense and internet of things field.
Background technique
Nowadays, demand of the people to data is increasing.Whether it in people's daily life, or in industry leads
In domain, the moment generates a large amount of data.It acquires these data to be analyzed, living environment information or production mould can be obtained
Block state.Therefore, these data are utilized, so that it may help improve our living environment；Or close supervision produces module
Change state prevents the generation of production accident, reduces using and wasting for the energy.
Monitoring means is often single node earlier, wired connection, and specificity is strong.As the requirement of monitoring and control is got over
Come higher, needs more advanced mode to carry out data acquisition and monitoring.With the generation and rise of internet of things concept, monitoring
Technology and Internet of Things combine, digitlization, networking, the intelligent developing direction for being melted into monitoring technology future.Internet of Things passes through
Intellisense, identification technology and general fit calculation etc. communicate cognition technology, are widely used in the fusion of network, are also therefore referred to as
The third wave that world information industry develops after computer, internet.Monitoring node, i.e. sensor node are wirelessly to pass
The basic functional units of sensor network, sensor node need to complete acquisition and conversion, the management of data and place of monitoring data
A variety of work such as reason, the task requests of response aggregation node and node control.
However, although the equipment or monitoring terminal as sensor node existing at present has data processing, wireless communication
Etc. functions, but wireless solution is single, and hardware configuration fixation can not be replaced, and is unable to satisfy a variety of data transportation requirements.In addition,
Also without formulating unified upward transport protocol, do not have generalization and seriation.The sensor type that can be adapted to is also extremely single
One, a kind of sensor output signal of standard can only be handled, 0~5V voltage signal can only be such as handled or 4~20mA can only be handled
Current signal, application range very little.Therefore existing product is unable to satisfy diversified detection requirement.
Summary of the invention
To achieve the goals above, it is whole to provide a kind of modular status intelligence sensing with internet of things functional by the present invention
End, which overcome defects present in the above-mentioned prior art and product, have internet of things functional, hardware modularity and software automatic
Configuration.
The object of the present invention is to provide a kind of, and the modular status with internet of things functional intelligently senses terminal, packet
It includes: microprocessor control module, condition intelligent sensing module, wireless communication module, GPS positioning module and human-computer interaction module；
Wherein GPS positioning module is for providing the location information of terminal node, and passes through serial communication interface for the location information
Send the microprocessor control module to；The condition intelligent sensing module is for obtaining sensor sensing letter collected
Number, and it is sent to the microprocessor control module；The microprocessor control module is used for according to the human-computer interaction mould
The parameter configuration of block automatically configures driving corresponding with the sensing signal, and is handled the sensing signal to obtain
Target data is obtained, and target data is packaged into data packet by data packetizing protocol and is sent to wireless communication module,
The wireless communication module is connected with the microprocessor control module, for received data packet to be wirelessly transmitted to nothing
Line gateway.
In one embodiment of this invention, the terminal further includes a power module, and the power module is used for described
The modules of terminal are powered, and the power module includes voltage conversion circuit and electric source filter circuit；The voltage conversion electricity
Road is used to alternating voltage being converted to DC voltage, and the voltage conversion circuit includes: off-line type switch IC component
LNK625PG and high frequency transformer EEL19.
In one embodiment of this invention, the condition intelligent sensing module judges sensor sensing letter collected
It number whether is standard signal；When the sensing signal is standard signal, collected sensing signal is sent to by bus
The microprocessor control module；When the sensing signal is non-standard signal, collected sensing signal is passed through in one
Be placed in the condition intelligent sensing module signal conditioning unit handled after be resent to the microprocessor control module.
In one embodiment of this invention, the microprocessor control module uses 32 of ARM Cortex-M3 kernel
High-performance reduced instruction set chip STM32F103RCT6 is controlled as the microprocessor of terminal node and the microprocessor
Module uses 24C02 chip, as extending out storage chip；The storage chip that extends out passes through I2C communication mode and micro- place
Manage device communication.
In one embodiment of this invention, the wireless communication module uses LoRa, ZigBee, GPRS, WIFI, NB-IoT
One of communication module is a variety of, and is connected using unified contact pin interface with the microprocessor control module.
In one embodiment of this invention, the GPS positioning module uses SIRFstarIV GSD4e WLCSP chip, institute
Stating chip includes GPS special filter and peripheral power supply circuit, and the GPS positioning module has active antenna and passive antenna.
In one embodiment of this invention, the microprocessor control module device is for will be by sensor target obtained
The ID of data, the location information of terminal node and terminal node is passed by protocol encapsulation at a data packet, and by the data packet
Give wireless communication module；The data include start bit, node ID, target data, location information, check bit sum stop bits,
Wherein for marking the data packet, the node ID is used to indicate the number of terminal node, institute for the start bit and stop bits
Check bit is stated for guaranteeing that the integrality and correctness of data packet transmission, the check bit use 16 circulation error correction CRC checks.
In one embodiment of this invention, the terminal further includes an alarm module, and the alarm module is for working as target
When data are more than threshold value, failure warning is issued；The alarm module includes alarm LED pipe and alarm buzzer, and passes through institute
State the pin control of microprocessor.
In one embodiment of this invention, the human-computer interaction module includes LCD liquid crystal touch screen and Keysheet module；It is described
LCD liquid crystal touch screen is connected to the microprocessor of the microprocessor control module by LCD interface circuit；The Keysheet module
Including a keyboard chip, the keyboard chip scanning keyboard, and will store from the key assignments of acquisition to the key of the keyboard chip
In value register, for being called to the microprocessor.
In one embodiment of this invention, the shell guide rail support installation of the terminal and screw are fixedly mounted.
There is the present invention modular status of internet of things functional intelligently to sense terminal compared with the prior art and product, this hair
Bright advantage is that (1) present invention uses modular design, and the module of same type uses unified hardware interface, and
It can replace according to actual needs, applicability is wide, flexible high；(2) modular status intelligently sensing terminal by filter circuit,
Multiple portions including signal amplification circuit, A/D converter circuit are integrated in one, and can be according to input signal feature to defeated
Enter signal type to be judged, and thus selects signal conditioning circuit appropriate, the biography suitable for multi-signal output type
Sensor；(3) various wireless communication module is provided and has formulated unified upward transport protocol, data transmission more standardizes, more
Reliably, be conducive to the generalization and seriation of product.(4) microprocessor control module uses STM32F103RCT6 chip,
It is low in energy consumption, function is strong as main control chip, be conducive to the extension of later period function.Furthermore there is the support of operating system,
Multi-task parallel is handled and process is handled in real time etc. also has certain advantage.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is that one of one embodiment of the invention there is the modular status of internet of things functional intelligently to sense terminal be
System block diagram.
Fig. 2 is the connection schematic diagram of the terminal node in embodiment of the present invention.
Fig. 3 is the peripheral hardware schematic diagram of the microprocessor of the microprocessor control module in embodiment of the present invention.
Fig. 4 is the level schematic diagram of the microprocessor in embodiment of the present invention.
Fig. 5 is the structural schematic diagram of the condition intelligent sensing module in embodiment of the present invention.
Fig. 6 is 12 needle interface structural schematic diagrams of the wireless communication module in embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
In patent document, the attached drawing that is discussed herein below and for describing each embodiment of principle disclosed by the invention only
For illustrating, and should not be construed as limiting the scope of the present disclosure.Those skilled in the art will appreciate that original of the invention
Reason can be implemented in any system suitably arranged.It will be explained in illustrative embodiments, these realities be shown in the attached drawings
The example for applying mode.In addition, terminal accoding to exemplary embodiment will be described in detail with reference to the attached drawings.Identical attached drawing mark in attached drawing
Number refer to identical element.
Term used in description of the invention is only used to describe particular implementation, and is not intended to show of the invention
Concept.Unless have clearly different meanings in context, it is otherwise, used in the singular to express the table for covering plural form
It reaches.In the description of the present invention, it should be appreciated that there are this hairs for the terms meant for illustration such as " comprising ", " having " and " containing "
A possibility that feature for being disclosed in bright specification, number, step, movement or combinations thereof, and be not intended to exclude may be present or can
A possibility that adding other one or more features, number, step, movement or combinations thereof.Same reference numerals in attached drawing refer to
For same section.
The embodiment of the present invention provides a kind of modular status intelligence sensing terminal with internet of things functional.It below will be respectively
It is described in detail.
Referring to shown in Fig. 1 to Fig. 6, in one embodiment of this invention, a kind of modularization with internet of things functional is provided
Condition intelligent senses terminal.The terminal 100 includes: microprocessor control module 110, condition intelligent sensing module 120, wireless
Communication module 150 and GPS positioning module 130.Wherein, microprocessor control module 110 can be referred to as MCU module.
The GPS positioning module 130 passes through serial communication interface for institute for providing the location information of terminal node
It states location information and sends the microprocessor control module 110 to.In the present embodiment, the GPS positioning module 130 uses
Tetra- generation of SIRF chip 131 (i.e. SIRFstarIV GSD4e WLCSP chip), the chip 131 have ARM kernel processes framework,
And integrated GPS special filter and peripheral power supply circuit, the antenna of the GPS positioning module 130 are easily debugged, while supporting have
Source antenna and passive antenna.The GPS positioning module 130 supports AGPS (Assisted Global Positioning
System, assisted global positioning system) function.In addition, the GPS positioning module 130 has a starting, the time is short, high sensitivity,
The features such as accurate positioning.The GPS positioning module 130 passes through serial communication interface and 110 phase of microprocessor control module
Even, and the location information of terminal node is sent to the microprocessor control module 110.
The condition intelligent sensing module 120 is sent to institute for obtaining the sensing signal collected of sensor 121
State microprocessor control module 110.And the condition intelligent sensing module 120 judges the sensor 121 sensing collected
Whether signal is standard signal；When the sensing signal is standard signal, collected sensing signal is connect by SDI-12
Mouth bus is sent to the microprocessor control module 110；When the sensing signal is non-standard signal, by collected sense
It surveys after signal is handled by a signal conditioning unit 122 for being built in the condition intelligent sensing module 120 and passes through again
RS232 interface bus is sent to the microprocessor control module 110.
In this embodiment, the condition intelligent sensing module 120 includes signal conditioning unit 122.The signal condition list
Member 122 is designed for small-signal or non-standard signal, using modularization, the design method of customization.The signal condition
Unit 122 can according to need integrated simulation signal transducer, signal amplification circuit, A/D converter circuit, voltage comparator etc. and exist
Interior multiple signal conditioning circuits 124.When the signal for needing to detect is non-standard signal or ultra-weak electronic signal, the signal tune
It manages unit 122 and corresponding signal conditioning circuit 124 is customized according to signal characteristic, the sensing signal of acquisition is amplified, is filtered
The operation such as wave, and the analog output improved as standard.In addition, the signal conditioning unit 122 further includes MCU123, institute
It states MCU123 and is connected to signal conditioning circuit 124.The mould for the standard that the MCU123 exports the signal conditioning circuit 124
Analog quantity is identified, is sent to the microprocessor control module 110 by RS232 interface bus (BUS) again later.Wherein,
As shown in the table, the RS232 interface bus belongs to serial communication bus, totally 9 pins, and the RS232 interface bus will adopt
The sensing signal collected is sent to the embedded microprocessor 111 in the microprocessor control module 110, and is handled
And analysis.When the condition intelligent sensing module 120 receives standard signal, then signal conditioning unit 122 is not used, directly
The standard signal is sent to microprocessor control module 110 by four-wire system sensor interface.
Specifically, the condition intelligent sensing module 120 can access multiple sensors 121.In the present embodiment, work as biography
When the signal that sensor 121 exports is the standard signals such as 0~5V, 4~20mA, electric pulse, then these standard signals are passed through into sensing
Device interface is sent to microprocessor control module 110.The sensor interface is 4 line interfaces, compatible multiple sensors type.
And by the standard signal type of the selection input of human-computer interaction module 140, to call internal corresponding driver directly to mark
Calibration signal is handled.Furthermore it is also possible to change program parameter by human-computer interaction module 140, the configurability of program is realized.
When condition intelligent sensing module 120 receives non-standard signal, when such as faint electric signal, due to microprocessor control module
110 can not be handled, and therefore, it is necessary to the signal is accessed to signal conditioning unit 122, the signal condition of signal conditioning unit 122
Circuit 124 improves non-standard signal for standard signal, and then the MCU123 of signal conditioning unit 122 carries out the standard signal
Pretreatment, is converted into digital quantity (data) for analog quantity and is sent to digital data then through RS232 interface bus
The microprocessor control module 110 is handled.
The microprocessor control module 110 according to the parameter configuration of the human-computer interaction module 140 for automatically configuring
Driving corresponding with the sensing signal, and the sensing signal is handled to obtain target data, and by number
Target data is packaged into data packet according to tunneling and is sent to wireless communication module 150.Wherein, in the present embodiment
In, the microprocessor control module 110 uses 32 high-performance reduced instruction set chips of ARM Cortex-M3 kernel
STM32F103RCT6, the microprocessor 111 as terminal node.The chip has enough peripheral hardware and pin,
Can within the scope of 1.8-3.6V supply voltage steady operation, meet the functional requirement of terminal node.In addition, the microprocessor
Control module 110 includes 24C02 chip, and as storage chip 112 is extended out, capacity 2KB includes minimum system for storing
Minimum system including parameter is set, and power down will not lose data；The storage chip 112 that extends out passes through I2C communication party
Formula is communicated with the microprocessor 111.
In the present embodiment, the microprocessor control module 110 is automatic according to the parameter configuration of human-computer interaction module 140
Relevant objective function is called, the 120 collected sensing signal of institute of condition intelligent sensing module (is changed into as digital quantity
Or master die analog quantity signal) be analyzed and processed, to obtain target data.That is, the microprocessor control module
A lot of kinds of burning drivings inside 110, corresponding different sensing signal.When accessing different sensors 121, pass through user
Which kind of signal is machine interactive module 140 be determine access, and the microprocessor 111 in the microprocessor control module 110 is certainly
Other ginsengs moved and configure corresponding driving under μ C/OS-II operating system 114, and inputted according to human-computer interaction module 140
Several pairs of signals are handled, to obtain target data.The microprocessor control module 110 will be obtained by sensor 121
The ID of target data, the location information of terminal node and terminal node by protocol encapsulation at a data packet, and by the data
Packet sends wireless communication module 150 to.Specifically, the preset data encapsulation format of terminal node is as follows:
| Start bit | Wireless mode | Location information | Data content | Node ID | Data type | Check bit | Stop bits |
| 1-Byte | 2-Byte | 8-Byte | N-Byte | 1-Byte | 1-Byte | 2-Byte | 1-Byte |
Sensor 121 is monitored that data switch to corresponding data packet and are sent to wireless by terminal node by above table
Communication module 150.Wherein, the data packet includes that start bit, node ID, data content, location information, check bit sum terminate
Position, wherein the start bit and stop bits are for marking the data packet, the node ID is used to indicate the number of terminal node,
To prevent node upload information chaotic.Location information is the data that the GPS positioning module 130 obtains, described for recording
The geographical location of terminal node.The data content includes the target data that the collected signal of sensor 121 is converted into.It is described
Check bit is used to guarantee the integrality and correctness of data packet transmission.In the present embodiment, the check bit is using 16 circulations
Error correction CRC check, that is to say, that add the position the n frame detection sequence FCS for error check after data, add the value of redundant code
(such as microprocessor 111) is calculated by sending device and is added in data frame (i.e. data packet), (such as LoRa communicates mould to receiving device
Block) crc value is recalculated when receiving data, each frame received all divided by identical divisor, what is then checked is remaining
Number R.If remainder R=0 obtained, determines that this frame is free from mistakes, received.If R is not 0, determine that this frame has difference
Mistake is abandoned.
In the present embodiment, the wireless communication module 150 is for received data packet to be wirelessly transmitted to wirelessly
Gateway 310.The wireless communication module 150 is using in LoRa, ZigBee, GPRS, WIFI, NB-IoT communication module 151
It is one or more, by using unified contact pin interface (for example, contact pin interfaces 152 of 12 needles) and the microprocessor control
Molding block 110 is connected, and carries out parameter configuration to it according to human-computer interaction module 140 (such as screen 141, keyboard 142), with negative
Data packet is wirelessly transmitted to wireless gateway device 310 by duty.That is, can according to need voluntarily selection communication protocol mould
Block, it is mutually independent on each communication protocol module hardware.When selecting a certain communication protocol module, this module is installed to slotting
On needle interface, as shown in fig. 6, and being called by human-computer interaction module 140 manually in 141 option and installment of LCD liquid crystal touch screen
Corresponding driver enables corresponding interface pin function.Wherein, the contact pin interface 152 of the wireless communication module 150 is used
In the connection microprocessor control module 110 and wireless communication module 150.In the present embodiment, the contact pin interface 152 is adopted
With the contact pin and socket of 12 needles, and carry out data transmission and instruct transmission using serial communication form.In addition, passing through man-machine friendship
Mutual module 140 configures corresponding driver, enables different pins to be adapted to corresponding wireless module, can be compatible with
The communication protocol modules such as ZigBee, GPRS, WIFI, LoRa, NB-IoT 151.The wireless communication module 150 has compatibility
It is good, flexible high, the wide feature of applicability.Each pin functionality of wireless communication module 150 is as shown in the table:
Wireless communication module pin functionality table
| Stitch | Function | Stitch | Function |
| 1 | Power supply VCC | 7 | DSR DSR |
| 2 | Signal ground AGND | 8 | Send request RTS |
| 3 | Carrier wave detects DCD | 9 | It sends and removes CTS |
| 4 | Receive data RXD | 10 | Ring indicates RING |
| 5 | Send data TXD | 11 | Reset RESRET |
| 6 | DTR DTR | 12 | Mode MOD |
In the present embodiment, it is contemplated that be applicable in different transmission ranges, the wireless communication module 150 can use ad hoc network
The wireless communication techniques such as GPRS (2G/3G/4G/5G), NB-IoT, WIFI, ZigBee and LoRa, and pass through wireless-transmission network
Wireless gateway device 310 is sent data packets to, wherein the wireless gateway device 310 can be, for example, LoRa coordinator, no
It is limited to this.Then, the data packet received can be transmitted to remote monitoring center by the WI-FI module of wireless gateway device 310
Server 300, further processing is executed to data packet by server 300, and comprehensive assessment algorithm is combined to realize to more
Data provided by a sensor 121 carry out comprehensive assessment.Furthermore it is possible to according to actual needs, extend terminal node, Neng Gougeng
Comprehensively to reflect the situation for each sensor 121 for monitoring region, to improve the accuracy of monitoring result and expand
The network function of terminal node.
In the present embodiment, the terminal further includes a power module 160, and the power module 160 was used for the end
The modules power supply at end 100, the power module 160 include voltage conversion circuit and electric source filter circuit.The voltage turns
Circuit is changed for 12V DC voltage needed for single-phase 220V AC voltage is converted to monitoring node.The voltage conversion circuit
It include: off-line type switch IC component LNK625PG and high frequency transformer EEL19, wherein the off-line type switch IC component
LNK625PG has device for power switching, oscillator, Isobarically Control engine, starting and defencive function.In addition, the power module
Further include AMS1117-3.3 power supply chip and MC34063 chip, for providing the voltage of 5V and 3.3V, makes for other components
With.
In addition, in the present embodiment, the terminal further includes a human-computer interaction module 140, the human-computer interaction module 140
Be connected with the microprocessor control module 110, for the parameter configuration by human-computer interaction module 140 come for sensing signal from
The dynamic corresponding driving of configuration.In addition, the human-computer interaction module 140 is also used for that wireless communication module 150 is selected and matched
It sets.The human-computer interaction module 140 includes LCD liquid crystal touch screen 141 and Keysheet module 142,140 benefit of human-computer interaction module
The design at interface is carried out with the GUI programming software Qt Designer of (SuSE) Linux OS, and writes program generation using C++
Code.The LCD liquid crystal touch screen 141 includes LCD touch screen interface, is connected to micro- place by corresponding LCD interface circuit
Manage the microprocessor 111 of device control module 110.The Keysheet module 142 is scanned keyboard by keyboard chip, and will
It is stored in key assignments register from keyboard key assignments obtained, the microprocessor 111 reads the key assignments by I2C bus and posts
Storage, to complete using keypad function.
In addition, in the present embodiment, the terminal further includes an alarm module 170, and the alarm module 170 is for working as mesh
When marking data more than threshold value, failure warning is issued；The alarm module 170 includes that alarm LED pipe and alarm buzzer (are schemed not
Show), and controlled by the pin of the microprocessor 111.That is, when target data occurs abnormal, the alarm
The on/off of the corresponding alarm LED pipe and alarm buzzer of module control, to issue abnormality alarming.
In addition, in the present embodiment, the mounting means that the terminal 100 uses is modularization installation.The terminal 100
The installation of shell guide rail support and screw are fixedly mounted.The occupied space of the terminal is smaller, while can satisfy industry spot
Installation requirement.The terminal of the terminal 100 is reasonably distributed, strong and weak electrically separated, to reduce in-site installation and environmental reconstruction difficulty.
Since the demanding terminal system has the function of high-performance, real time communication, data processing and multitask switching etc., according to
These requirements and the considerations of combine system function design and real-time, the terminal 100 in the present embodiment uses the behaviour of μ C/OS- II
Make system 114 to carry out the design and exploitation of node software.According to the functional requirement of node, holding terminal in the process of development
Row division of operations is 5, i.e. opening initialization, data acquisition and procession, communication, human-computer interaction and display updates.
Specifically, the terminal 100 is carried out the design of node using embedded II operating system 114 of μ C/OS- and opened
Hair executes opening initialization, main task, data acquisition and procession task, communication task, display more new task and reserved API115
It is called to user's later period.Selected wireless communication module is determined according to the input of LCD liquid crystal touch screen 141 and keyboard 142
150, corresponding driver 113 is called, microprocessor 111 is configured, interface pin function is enabled, so that radio communication mold
Block 150 can normally work.In addition, the terminal 100 can use operating system and be obtained in the form of graphical interfaces to show
The target data obtained.
In addition, the communication protocol of the terminal 100 mainly includes two aspects, i.e., the microprocessor 111 of the described terminal 100
The communication protocol between agreement and wireless gateway device 310 and terminal between the wireless communication module 150.Such as when
When wireless communication module 150 is using LoRa communication module 151, the terminal 100 is mainly read by SPI serial communication protocol micro-
Data in processor 111.After the terminal 100 receives target data provided by sensor 121, the microprocessor
The microprocessor 111 of control module 110 parses it, therefrom extracts necessary information, and according to presetting data
Agreement is packaged, and is then sent to LoRa communication protocol module by serial ports.
Wireless communication module 150 will be further described by taking ZigBee module as an example below.
After selecting ZigBee communication protocol module 151 on LCD liquid crystal touch screen 141, wireless communication module 150 is enabled
RXD, TXD, CTS, RESET, MOD pin, then, ZigBee communication protocol module can operate normally.Due to ZigBee technology
Have the characteristics that low-power consumption, at low cost, time delay is short, network capacity is big, ad hoc network, safe and reliable, therefore, in the present embodiment,
Using ZigBee communication protocol module 151, to realize networking, data transmission and reception.In ZigBee communication protocol module 151
Complete networking after, the microprocessor 111 by the target data of obtained node, location information, node ID press protocol encapsulation at
Data packet, and send the data packet to wireless communication module 150, the wireless communication module 150 is again by the data
Packet is transferred to wireless routing or wireless exchange board 310, and then data packet is transferred in remote data base 300 again, will remotely be counted
It is uniformly analyzed and processed according to the data in library 300, the id information, geographical location information and monitored target of each node can be obtained
Flow information, so that unified carry out data monitoring.It is, of course, also possible to which the instruction format according to wireless gateway device is remotely sent
Order, remote administration terminal node, to uniformly be managed and configure.When gateway receives the behaviour of long-range inspection center
It after instructing, is added in command frame according to by corresponding instruction code, instruction code wakes up for control node or suspend mode, system
One change node parameter etc..
The data format for sending control instruction to terminal the following are wireless gateway device is as follows:
| Start bit | Command context | Gateway ID | Data type | Check bit | Stop bits |
| 1-Byte | 8-Byte | 1-Byte | 1-Byte | 2-Byte | 1-Byte |
Other communication protocol modules of the wireless communication module 150 can also use 12 needle interfaces, and using unified
Upward wireless data transmission protocols carry out data encapsulation according to above table, so that remote data base can be used together
One mode carries out data parsing and processing.
It is provided for the embodiments of the invention a kind of modular status intelligence sensing terminal with internet of things functional above
It is described in detail.It should be understood that illustrative embodiments as described herein should be to be considered only as descriptive, it is used to help manage
Method and its core concept of the invention are solved, and are not intended to restrict the invention.To feature in each illustrative embodiments
Or the description of aspect should usually be considered the similar features or aspects suitable for other exemplary embodiments.Although reference example
Property embodiment describe the present invention, but can suggest that those skilled in the art carries out various change and change.The invention is intended to
Cover these variations and the change in the scope of the appended claims.
Claims (10)
1. a kind of modular status with internet of things functional intelligently senses terminal characterized by comprising microprocessor control
Module, condition intelligent sensing module, wireless communication module, GPS positioning module and human-computer interaction module；Wherein GPS positioning module
The location information is sent to the micro process for providing the location information of terminal node, and by serial communication interface
Device control module；The condition intelligent sensing module 120 is sent to institute for obtaining sensor sensing signal collected
State microprocessor control module；The microprocessor control module is used for automatic according to the parameter configuration of the human-computer interaction module
Driving corresponding with the sensing signal is configured, and the sensing signal is handled to obtain target data, and
Target data is packaged into data packet by data packetizing protocol and is sent to wireless communication module, the wireless communication module
It is connected with the microprocessor control module, for received data packet to be wirelessly transmitted to wireless gateway device.
2. terminal according to claim 1, which is characterized in that the terminal further includes a power module, the power supply mould
Block is used to power to the modules of the terminal, and the power module includes voltage conversion circuit and electric source filter circuit；Institute
Voltage conversion circuit is stated for alternating voltage to be converted to DC voltage, the voltage conversion circuit includes: off-line type switch IC
Component LNK625PG and high frequency transformer EEL19.
3. terminal according to claim 1, which is characterized in that the condition intelligent sensing module 120 judges the sensing
Whether device sensing signal collected is standard signal；When the sensing signal is standard signal, collected sensing is believed
Number the microprocessor control module is sent to by bus；It, will be collected when the sensing signal is non-standard signal
Sensing signal is resent to institute after being handled by a signal conditioning unit for being built in the condition intelligent sensing module 120
State microprocessor control module.
4. terminal according to claim 1, which is characterized in that the microprocessor control module uses ARM Cortex-
32 high-performance reduced instruction set chip STM32F103RCT6 of M3 kernel, as the microprocessor of terminal node and described
Microprocessor control module uses 24C02 chip, as extending out storage chip；The storage chip that extends out passes through I2C communication party
Formula and the microprocessor communication.
5. terminal according to claim 1, which is characterized in that the wireless communication module using LoRa, ZigBee,
One of GPRS, WIFI, NB-IoT communication module is a variety of, and using unified contact pin interface and the microprocessor control
Molding block is connected.
6. terminal according to claim 1, which is characterized in that the GPS positioning module uses SIRFstarIV GSD4e
WLCSP chip, the chip include GPS special filter and peripheral power supply circuit, and the GPS positioning module has active antenna
And passive antenna.
7. terminal according to claim 1, which is characterized in that the microprocessor control module device is used for sensor institute
The ID of collected target data, the location information of terminal node and terminal node presses protocol encapsulation into a data packet, and will
The data packet sends wireless communication module to；The data include start bit, node ID, target data, location information, verification
Position and stop bits, wherein the start bit and stop bits are for marking the data packet, the node ID is for indicating terminal section
The number of point, the check bit are used to guarantee the integrality and correctness of data packet transmission, and the check bit is using 16 circulations
Error correction CRC check.
8. terminal according to claim 1, which is characterized in that the terminal further includes an alarm module, the alarm mould
Block is used to issue failure warning when target data is more than threshold value；The alarm module includes alarm LED pipe and alarm buzzing
Device, and controlled by the pin of the microprocessor.
9. terminal according to claim 1, which is characterized in that the human-computer interaction module include LCD liquid crystal touch screen and
Keysheet module；The LCD liquid crystal touch screen is connected to the micro process of the microprocessor control module by LCD interface circuit
Device；The Keysheet module includes a keyboard chip, the keyboard chip scanning keyboard, and will store from the key assignments of acquisition to institute
It states in the key assignments register of keyboard chip, for being called to the microprocessor.
10. terminal according to claim 1, which is characterized in that the shell guide rail support of the terminal is installed and screw is solid
Dingan County's dress.
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| CN201811371979.8A CN109274775A (en) | 2018-11-16 | 2018-11-16 | A kind of modular status intelligence sensing terminal with internet of things functional |
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Application publication date: 20190125 |