CN108923878A - Based on the wireless sensor node synchronous with GPS time service of WiFi - Google Patents
Based on the wireless sensor node synchronous with GPS time service of WiFi Download PDFInfo
- Publication number
- CN108923878A CN108923878A CN201811074938.2A CN201811074938A CN108923878A CN 108923878 A CN108923878 A CN 108923878A CN 201811074938 A CN201811074938 A CN 201811074938A CN 108923878 A CN108923878 A CN 108923878A
- Authority
- CN
- China
- Prior art keywords
- pin
- master controller
- module
- wifi
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 230000001133 acceleration Effects 0.000 claims description 57
- 238000004891 communication Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 13
- 230000000630 rising effect Effects 0.000 claims description 12
- 230000003321 amplification Effects 0.000 claims description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 13
- 238000012544 monitoring process Methods 0.000 abstract description 13
- 238000013461 design Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000036541 health Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 7
- 101100420795 Schizosaccharomyces pombe (strain 972 / ATCC 24843) sck1 gene Proteins 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000007405 data analysis Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of based on the wireless sensor node synchronous with GPS time service of WiFi, belongs to structural health monitoring technology field.Solve the problems, such as that traditional sensors node is at high cost, data acquisition is asynchronous and how by wireless transmission method reliable connection synchronous with GPS.It mainly include GPS module, WiFi module, power management module and data acquisition module.The many and diverse step of the effective breviaty inserting knot of the present invention, time synchronization truly is realized under GPS time service, keeps collected data more accurate；The simultaneous techniques of wireless transmission method and GPS effectively, are reliably combined together, the efficiency of data acquisition is improved, reduces cost；Entire circuit is carried out complete modularized design by the present invention, and circuit performance is highly stable reliable, and failure rate is low, long service life, and simplifiedly life cycle of the product is greatly shortened in circuit design, and enterprises production efficiency is very high.
Description
Technical field
The invention belongs to structural health monitoring technology fields, specifically, more particularly to a kind of data truly
Synchronous, low cost of layout, circuit design module, simplification, high stability can it is wirelessly synchronous with GPS time service based on WiFi
Sensor node.
Background technique
Current existing sensor node be mostly it is wired, be powered by electric wire and data interaction, with wired
Mode be inserted into adapter and carried out data transmission by capture card and computer；And what is mostly used in signal synchronization aspects is to be
The signal acquisition of the system multiple sensor nodes of clock control, the end PC receive always the data of whole equipment acquisition at the scene.It is this
There are two apparent drawbacks for sensor node：1. wired range for significantly limiting data acquisition, increases sensor
The volume of node needs adapter and data collecting card in the case where wired, increase the cost of sensor node, improve
The maintenance fund of equipment.In addition, acquisition data are seriously spent human and material resources at the scene always at the end PC；It is especially very multiple in face of being routed
Status monitoring under miscellaneous building and adverse circumstances, the disadvantage of wired sensor nodes more highlight；2. same in signal
Step aspect controls the synchronous data collection of sensor node using system clock because of prison caused by moderate accuracy is different
Measured data asynchrony phenomenon still occurs.
With the progress of GPS technology, the appearance of the timing function of GPS is so that accurately obtaining for a wide range of distributed synchronization data
Taking becomes a kind of possibility, but receives wired constraint again while be applied to the timing function of GPS at present so that measure away from
From because data line presence and be only confined on small-scale distributed data acquisition, but again with WiFi, ZigBee,
The rapid development of the wireless technologys such as Bluetooth, the methods in terms of the transmission of data have also stepped major step therewith, can be with
Data are transferred to the storage and analysis port of data by wireless transmission mode from collection terminal.So, how will be wireless
Transmission mode and the simultaneous techniques of GPS effectively, are reliably combined together, in other words how by wireless transmission method and GPS
Simultaneous techniques reliablely and stablely applied in terms of data acquisition and monitoring, be that wireless sensor network technology field needs to solve
Certainly the problem of.
Summary of the invention
The purpose of the present invention is in view of the deficienciess of the prior art, provide a kind of data truly it is synchronous,
Low cost of layout, circuit design module, simplification, high stability can based on the wireless sensing synchronous with GPS time service of WiFi
Device node.
The present invention is achieved by the following technical solutions：
It is a kind of based on the WiFi wirelessly sensor node synchronous with GPS time service, including GPS module, WiFi module, power supply pipe
Manage module and data acquisition module；The power management module is the GPS module, the WiFi module, the data are adopted
Collect module and working power is provided；The GPS module is connect with satellite electric signal, with UART communication mode by UTC time information,
1PPS pulse signal is sent to the data acquisition module, and the data acquisition module is upper the GPS module 1PPS pulse
It rises edge/failing edge and carries out data acquisition, and data are sent to WiFi module in a manner of serial communication, the WiFi module will
The information received is sent to other nodes or server terminal.
Preferably, the data acquisition module includes that master controller MCU unit, A/D converter unit and vibration accelerate
Spend sensor unit, the rising edge/decline for the 1PPS pulse that the vibration acceleration sensor unit is sent in the GPS module
Along the acquisition for the vibration acceleration signal and ambient temperature signal realized on x, y, z direction, the A/D converter unit will vibrate
The analog signal of acceleration transducer output is converted to digital signal, and the A/D converter unit will be counted using SPI communication mode
According to being sent to the master controller MCU unit, the master controller MCU unit is with UART serial communication mode by the data of acquisition
It is sent to the WiFi module.
Preferably, after the buffered amplifier unit caching amplification of the collected data of vibration acceleration sensor unit
It is sent to the A/D converter unit, the caching amplifier unit includes LT6236 amplifier chip, and LT6236 amplifier chip is defeated
Outlet is connected on the input terminal of A/D converter unit.
Preferably, the LPC54113J256BD64 for the MCU model NXP company that the master controller MCU unit uses；Institute
State the LTC2344-16 that A/D conversion chip used by A/D converter unit is TI company；The vibration acceleration sensor list
Sensor model number used by member is the ADXL356 of TI company.
Preferably, RANGE, ST1, ST2 pin of the ADXL356 is respectively with the LPC54113J256BD64's
PIO1_2, PIO1_1, PIO1_0 pin conduction be connected, for control ADXL356 GPS module 1PPS pulse rising edge/under
Drop is along the acquisition for starting to carry out vibration acceleration signal and ambient temperature signal on x, y, z direction；The STBY of the ADXL356
Pin is electrically connected with the PIO1_3 pin of master controller MCULPC54113J256BD64, by master controller
MCULPC54113J256BD64 selects standby/measurement operating mode of vibration acceleration sensor ADXL356；It is described
TEMP pin, XOUT, YOUT, ZOUT pin of ADXL356 connects with the input pin conduction of four LT6236 amplifier chips respectively
It connects, respectively by the vibration acceleration signal in ambient temperature signal, X-direction, the vibration acceleration signal in Y direction, Z axis
It exports after vibration acceleration signal caching amplification on direction to A/D converter unit；The vibration acceleration sensor
The REFIN pin of the LTC2344-16 of the VIPBANA pin of ADXL356 and the A/D converter unit is conductively connected, main to use
In the reference voltage to LTC2344-16 chip offer input signal.
Preferably, the A/D converter LTC2344-16 is by the digital data transmission after conversion to the master controller
MCULPC54113J256BD64, the master controller MCULPC54113J256BD64 are by the PD pin of LTC2344-16 to institute
Standby/the normal mode of operation for stating LTC2344-16 is controlled.
Preferably, the GPS module is using the UM220-IIIL model module led to star core, RF_IN pin
Aerial signal input terminal；The PIO0_2 pin conduction of its AADET_N pin and master controller MCULPC54113J256BD64 connect
It connects, for the selection to active antenna, passive antenna type；Its GPIO2 pin and master controller MCULPC54113J256BD64
PIO0_3 pin be conductively connected, for judging whether antenna normal over the ground；Its TIME PULSE pin and master controller
The PIO0_4 pin of MCULPC54113J256BD64 is conductively connected, for 1PPS pulse signal to be sent to the master controller
MCULPC54113J256BD64；The PIO0_6 pin conduction of its RXD1 pin and master controller MCULPC54113J256BD64 connect
It connects, for receiving the instruction from master controller MCULPC54113J256BD64；Its TXD1 pin and master controller
The PIO0_5 pin of MCULPC54113J256BD64 is conductively connected, after GPS module receives instruction, to master controller
MCULPC54113J256BD64 sends the UTC time information that master controller MCULPC54113J256BD64 specifies data format.
Preferably, the USR-C216 wireless module using Jinan someone company of the WiFi module；Its RFIO pipe
Foot is aerial signal input terminal；The PIO0_0 pin of its USRT0_TX pin and master controller MCULPC54113J256BD64 is led
Electrical connection, for the data received from the outside to be sent to master controller MCULPC54113J256BD64；Its USRT0_RX pipe
The PIO0_1 pin of foot and master controller MCULPC54113J256BD64 are conductively connected, for adopting the data acquisition module
The data of collection are sent；The PIO1_8 pin conduction of its nReload pin and master controller MCULPC54113J256BD64 connect
It connects, WiFi network is configured by master controller MCULPC54113J256BD64, drag down 0.5-3s starting Simple
Config Airkiss distribution drags down 3s or more factory reset；Its nLink pin and master controller
The PIO1_7 pin of MCULPC54113J256BD64 is conductively connected, which is WiFi module connection instruction pin；Its nReady
The PIO1_9 pin of pin and master controller MCULPC54113J256BD64 are conductively connected, which indicates WiFi module work
Normal instruction pin.
Preferably, the connecting wire line width between the RFIO pin and antenna RF of the USR-C216 wireless module is according to resistance
Anti- matching is designed.
Preferably, the power management module includes rechargeable battery, battery charging unit, battery capacity detection unit
And voltage conversion unit, for the battery charging unit using BQ24092 as core chips, it is described for using usb mode
Rechargeable battery charging；The battery capacity detection unit is used to detect the electricity of the rechargeable battery, using BQ27411 as core
Chip sends electric signal to the master controller MCU unit, by the master controller when the electric quantity of rechargeable battery is too low
MCU unit controls the GPS module, the WiFi module, the data acquisition module and enters stand-by operation state.
Compared with prior art, the beneficial effects of the invention are as follows：
1. the requirement present invention accomplishes current distributed data acquisition to monitoring range increases in the case where wireless
The range for having added data to acquire；Reduce weight of equipment and makes the acquisition step that data are more convenient and breviaty inserting knot is many and diverse
Suddenly, so that working in the presence of a harsh environment in monitoring building and long-time becomes possibility；
2. the present invention realizes time synchronization truly under WiFi wireless transmission and GPS time service, make to collect
Data it is more accurate, increase the confidence level of data analysis result；
3. the present invention by the simultaneous techniques of USR-C216WiFi wireless module and UM220-IIILGPS module effectively, can
It is combined together by ground, synchronization accuracy can reach delicate grade even nanosecond, and synchronization accuracy is very high, in addition while significantly contract
Subtract the size of equipment, it is easy to carry, a large amount of manpower and material resources are saved, the efficiency of data acquisition is improved, reduces cost,
Reliable underlying basis is provided for the wireless sensor network and data testing system of setting up large-scale；
4. entire circuit design power consumption of the invention is very low, primary charging can continuous work 4 in the case where no external power supply
It is more than a hour；
5. the present invention is versatile, sample frequency can freely be adjusted within the scope of 10Hz-20kHz, the stepping of sample frequency
Program-controlled switching is by changing the communication between master controller MCULPC54113J256BD64 and A/D converter LTC2344-16
Baud rate is realized；
6. entire circuit is carried out complete modularized design by the present invention, circuit performance is highly stable reliable, and failure rate is low, makes
It is long with the service life, and simplifiedly life cycle of the product is greatly shortened in circuit design, and enterprises production efficiency is very high；It is strong in structure
Health monitoring technical field is of great significance.
Detailed description of the invention
Fig. 1 be the present invention as ordinary node when each functions of modules schematic diagram；
Fig. 2 be the present invention as gateway node when each functions of modules schematic diagram；
Fig. 3 is present system block diagram；
Fig. 4 is the circuit diagram of the master controller MCU unit of data acquisition module of the present invention；
Fig. 5 is the A/D converter element circuit schematic diagram of data acquisition module of the present invention；
Fig. 6 is the vibration acceleration sensor element circuit schematic diagram of data acquisition module of the present invention；
Fig. 7 is present invention caching amplifier unit circuit diagram；
Fig. 8 is GPS module circuit diagram of the present invention；
Fig. 9 is WiFi module circuit diagram of the present invention；
Figure 10 is power management module rechargeable battery and battery charging unit circuit diagram of the present invention；
Figure 11 is power management module battery capacity detection cell circuit schematic diagram of the present invention；
Figure 12 is voltage conversion unit circuit diagram of the present invention.
In figure：1.GPS module；2.WiFi module；3. power management module；4. data acquisition module；5.A/D converter list
Member；6. vibration acceleration sensor unit；7. master controller MCU unit.
Specific embodiment
The following further describes the present invention with reference to the drawings：
It is a kind of based on the WiFi wirelessly sensor node synchronous with GPS time service, including GPS module 1, WiFi module 2, power supply
Management module 3 and data acquisition module 4；The power management module 3 is the GPS module 1, the WiFi module 2, described
Data acquisition module 4 provides working power；The GPS module 1 is connect with satellite electric signal, with UART communication mode by UTC
Temporal information, 1PPS pulse signal are sent to the data acquisition module 4, and the data acquisition module 4 is in the GPS module
The rising edge of 1PPS pulse/failing edge carries out data acquisition, and data are sent to WiFi module 2 in a manner of serial communication,
The information received is sent to other nodes or server terminal by the WiFi module 2.
Preferably, the data acquisition module 4 includes that master controller MCU unit 7, A/D converter unit 5 and vibration add
Speed sensor units 6, the rising edge of the 1PPS pulse that the vibration acceleration sensor unit 6 is sent in the GPS module/
Failing edge realizes the acquisition of vibration acceleration signal and ambient temperature signal on x, y, z direction, the A/D converter unit 5
The analog signal that vibration acceleration sensor exports is converted into digital signal, the A/D converter unit uses SPI communication side
Formula sends the data to the master controller MCU unit 7, and the master controller MCU unit 7 will be adopted with UART serial communication mode
The data of collection are sent to the WiFi module 2.
Preferably, after the buffered amplifier unit caching amplification of the collected data of vibration acceleration sensor unit
It is sent to the A/D converter unit, the caching amplifier unit includes LT6236 amplifier chip, and LT6236 amplifier chip is defeated
Outlet is connected on the input terminal of A/D converter unit.
Preferably, the LPC54113J256BD64 for the MCU model NXP company that the master controller MCU unit 7 uses；
A/D conversion chip used by the A/D converter unit 5 is the LTC2344-16 of TI company；The vibration acceleration sensing
Sensor model number used by device unit 6 is the ADXL356 of TI company.
Preferably, RANGE, ST1, ST2 pin of the ADXL356 is respectively with the LPC54113J256BD64's
PIO1_2, PIO1_1, PIO1_0 pin conduction be connected, for control ADXL356 GPS module 1PPS pulse rising edge/under
Drop is along the acquisition for starting to carry out vibration acceleration signal and ambient temperature signal on x, y, z direction；The STBY of the ADXL356
Pin is electrically connected with the PIO1_3 pin of master controller MCULPC54113J256BD64, by master controller
MCULPC54113J256BD64 selects standby/measurement operating mode of vibration acceleration sensor ADXL356；It is described
TEMP pin, XOUT, YOUT, ZOUT pin of ADXL356 connects with the input pin conduction of four LT6236 amplifier chips respectively
It connects, respectively by the vibration acceleration signal in ambient temperature signal, X-direction, the vibration acceleration signal in Y direction, Z axis
It exports after vibration acceleration signal caching amplification on direction to A/D converter unit；The vibration acceleration sensor
The REFIN pin of the LTC2344-16 of the VIPBANA pin of ADXL356 and the A/D converter unit is conductively connected, main to use
In the reference voltage to LTC2344-16 chip offer input signal.
Preferably, the A/D converter LTC2344-16 is by the digital data transmission after conversion to the master controller
MCULPC54113J256BD64, the master controller MCULPC54113J256BD64 are by the PD pin of LTC2344-16 to institute
Standby/the normal mode of operation for stating LTC2344-16 is controlled.
Preferably, the GPS module is using the UM220-IIIL model module led to star core, RF_IN pin
Aerial signal input terminal；The PIO0_2 pin conduction of its AADET_N pin and master controller MCULPC54113J256BD64 connect
It connects, for the selection to active antenna, passive antenna type；Its GPIO2 pin and master controller MCULPC54113J256BD64
PIO0_3 pin be conductively connected, for judging whether antenna normal over the ground；Its TIME PULSE pin and master controller
The PIO0_4 pin of MCULPC54113J256BD64 is conductively connected, for 1PPS pulse signal to be sent to the master controller
MCULPC54113J256BD64；The PIO0_6 pin conduction of its RXD1 pin and master controller MCULPC54113J256BD64 connect
It connects, for receiving the instruction from master controller MCULPC54113J256BD64；Its TXD1 pin and master controller
The PIO0_5 pin of MCULPC54113J256BD64 is conductively connected, after GPS module receives instruction, to master controller
MCULPC54113J256BD64 sends the UTC time information that master controller MCULPC54113J256BD64 specifies data format.
Time synchronization truly is realized under UM220-IIIL time service, is kept collected data more accurate, is increased number
According to the confidence level of analysis result.
Preferably, the USR-C216 wireless module using Jinan someone company of the WiFi module 2；Its RFIO pipe
Foot is aerial signal input terminal；The PIO0_0 pin of its USRT0_TX pin and master controller MCULPC54113J256BD64 is led
Electrical connection, for the data received from the outside to be sent to master controller MCULPC54113J256BD64；Its USRT0_RX pipe
The PIO0_1 pin of foot and master controller MCULPC54113J256BD64 are conductively connected, for adopting the data acquisition module 4
The data of collection are sent；The PIO1_8 pin conduction of its nReload pin and master controller MCULPC54113J256BD64 connect
It connects, WiFi network is configured by master controller MCULPC54113J256BD64, drag down 0.5-3s starting Simple
Config Airkiss distribution drags down 3s or more factory reset；Its nLink pin and master controller
The PIO1_7 pin of MCULPC54113J256BD64 is conductively connected, which is WiFi module connection instruction pin；Its nReady
The PIO1_9 pin of pin and master controller MCULPC54113J256BD64 are conductively connected, which indicates WiFi module work
Normal instruction pin.The design of wireless module of the present invention can propagate 200 meters or more under accessible, meet current distribution
Data acquire the requirement to monitoring range, and the range of data acquisition is considerably increased in the case where wireless；Reduce equipment weight
Amount so that acquisition data are more convenient and breviaty inserting knot is many and diverse step so that monitor building and it is long when
Between work become possibility in the presence of a harsh environment.
Preferably, the connecting wire line width between the RFIO pin and antenna RF of the USR-C216 wireless module is according to resistance
Anti- matching is designed.Achieve the purpose that the microwave signal of all high frequencies can all reach load point by designing impedance matching,
It does not have signal reflex to return source point, to promote source benefit.
Preferably, the power management module 3 includes rechargeable battery, battery charging unit, battery capacity detection list
Member and voltage conversion unit, the battery charging unit use usb mode for institute using BQ24092 as core chips
State rechargeable battery charging；The battery capacity detection unit is used to detect the electricity of the rechargeable battery, using BQ27411 as core
Chip centroid sends electric signal to the master controller MCU unit 7, by the master control when the electric quantity of rechargeable battery is too low
Device MCU unit 7 controls the GPS module 1, the WiFi module 2, the data acquisition module 4 and enters stand-by operation state.This
Invention power management module has the super-charge super-discharge defencive function to battery, and overcharging protection is to carry function by BQ24092 chip
It is able to achieve；Cross prevention is realized by real time monitoring of the BQ27411 chip to rechargeable battery, when battery capacity reaches setting
When minimum, master controller MCU unit just controls other and the module of power supply power supply is needed to enter standby mode, and passes through indicator light
User's charging is reminded, to play the defencive function to rechargeable battery.
Embodiment 1：
It is a kind of based on the WiFi wirelessly sensor node synchronous with GPS time service, including GPS module 1, WiFi module 2, power supply
Management module 3 and data acquisition module 4；Power management module 3 is GPS module 1, WiFi module 2, data acquisition module 4 mention
For working power；GPS module 1 is connect with satellite electric signal, is believed UTC time information, 1PPS pulse with UART communication mode
Number it is sent to data acquisition module 4.Data acquisition module 4 includes master controller MCU unit 7, A/D converter unit 5 and vibration
Dynamic acceleration transducer unit 6, vibration acceleration sensor unit 6 are realized in rising edge/failing edge of GPS module 1PPS pulse
The acquisition of vibration acceleration signal and ambient temperature signal on x, y, z direction, A/D converter unit 5 pass vibration acceleration
The analog signal of sensor output is converted to digital signal, and A/D converter unit sends the data to master control using SPI communication mode
The data of acquisition are sent to WiFi module 2 with UART serial communication mode by device MCU unit 7 processed, master controller MCU unit 7,
The information received is sent to other nodes or server terminal by WiFi module 2.
The LPC54113J256BD64 for the MCU model NXP company that master controller MCU unit 7 uses；A/D converter list
A/D conversion chip used by member 5 is the LTC2344-16 of TI company；Sensing used by vibration acceleration sensor unit 6
The ADXL356 of device model TI company.
It is sent to after the buffered amplifier unit caching amplification of the collected data of vibration acceleration sensor unit described
A/D converter unit, caching amplifier unit includes LT6236 amplifier chip, and LT6236 amplifier chip output end is connected on A/D
The input terminal of converter unit.Caching amplifier unit main function is to provide low output impedance, can be in the fast run-up of acquisition phase
Vertical analog signal.When entering acquisition, it also provides the isolation between signal source and electric charge stream at simulation input.
RANGE, ST1, ST2 pin of ADXL356 respectively with PIO1_2, PIO1_1, PIO1_ of LPC54113J256BD64
0 pin conduction is connected, and starts to carry out x, y, z side in rising edge/failing edge of GPS module 1PPS pulse for controlling ADXL356
The acquisition of upward vibration acceleration signal and ambient temperature signal；The STBY pin and master controller of ADXL356
The PIO1_3 pin of MCULPC54113J256BD64 is electrically connected, and is accelerated by master controller MCULPC54113J256BD64 to vibration
Standby/measurement operating mode of degree sensors A DXL356 is selected；TEMP pin, XOUT, YOUT, ZOUT pipe of ADXL356
Foot is conductively connected with the input pin of four LT6236 amplifier chips respectively, respectively by the vibration in ambient temperature signal, X-direction
It is defeated after dynamic acceleration signal, the vibration acceleration signal in Y direction, the vibration acceleration signal caching amplification in Z-direction
Out to A/D converter unit；The VIPBANA pin of vibration acceleration sensor ADXL356 and the A/D converter unit
The REFIN pin of LTC2344-16 is conductively connected, and is mainly used for providing the reference voltage of input signal to LTC2344-16 chip.
A/D converter LTC2344-16 is by the digital data transmission after conversion to the master controller
MCULPC54113J256BD64, master controller MCULPC54113J256BD64 are by the PD pin of LTC2344-16 to described
Standby/normal mode of operation of LTC2344-16 is controlled.As shown in Figure of description Fig. 5, CNV pin, SDI pin,
Identical network label is conductive on the uniform LPC54113J256BD64 chip of SCK1 pin, SDI0 pin, BUSY pin, CS pin
Connection；Its CNV pin is that A/D conversion starts to input, and CNV is not controlled by CS, allows to start independently of serial i/O bus state
Conversion；Its SDI pin receives the instruction that LPC54113J256BD64 is sent to LTC2344-16, and LPC54113J256BD64 is first sent out
The flat input range of power transmission is instructed to LTC2344-16, and it is corresponding level model that then LTC2344-16, which controls the level of input interface,
It encloses；Its SCK1 pin is CMOS serial clock input terminal；Its SDI0 pin is the output end of entire A/D chip, i.e. analog signal
Be converted to the output end of digital signal；Its BUSY pin is easy for MCU and judges the whether busy pin of A/D chip, busy signal
Expression is being converted；CS pin is chip selection input terminal, and serial data I/O bus is enabled when CS is low, in CS high
Disabling, enables, CS can also open external clock SCKI in Hi-Z.
For GPS module using the UM220-IIIL model module led to star core, RF_IN pin is aerial signal input
End；The PIO0_2 pin of its AADET_N pin and master controller MCULPC54113J256BD64 are conductively connected, for active
The selection of antenna, passive antenna type；The PIO0_3 pin of its GPIO2 pin and master controller MCULPC54113J256BD64
It is conductively connected, for judging whether antenna is normal over the ground；Its TIME PULSE pin and master controller
The PIO0_4 pin of MCULPC54113J256BD64 is conductively connected, for 1PPS pulse signal to be sent to the master controller
MCULPC54113J256BD64；The PIO0_6 pin conduction of its RXD1 pin and master controller MCULPC54113J256BD64 connect
It connects, for receiving the instruction from master controller MCULPC54113J256BD64；Its TXD1 pin and master controller
The PIO0_5 pin of MCULPC54113J256BD64 is conductively connected, after GPS module receives instruction, to master controller
MCULPC54113J256BD64 sends the UTC time information that master controller MCULPC54113J256BD64 specifies data format.
Three light emitting diodes in the module are test indicator light.
When sensor node is ordinary node, station mode is set by USR-C216 wireless module, i.e., is passed at this time
Sensor node only sends the data of system acquisition.The USR-C216 using Jinan someone company of WiFi module 2
Wireless module；Its RFIO pin is aerial signal input terminal；Its USRT0_TX pin and master controller
The PIO0_0 pin of MCULPC54113J256BD64 is conductively connected, for the data received from the outside to be sent to master control
Device MCULPC54113J256BD64；The PIO0_1 pin of its USRT0_RX pin and master controller MCULPC54113J256BD64
It is conductively connected, the data for acquiring the data acquisition module 4 are sent；Its nReload pin and master controller
The PIO1_8 pin of MCULPC54113J256BD64 is conductively connected, by master controller MCULPC54113J256BD64 to WiFi net
Network is configured, and is dragged down 0.5-3s starting Simple Config or Airkiss distribution, is dragged down 3s or more factory reset；
The PIO1_7 pin of its nLink pin and master controller MCULPC54113J256BD64 are conductively connected, which is WiFi module
Connection instruction pin；The PIO1_9 pin of its nReady pin and master controller MCULPC54113J256BD64 are conductively connected, should
Pin indicates WiFi module instruction pin working properly.Five light emitting diodes in the module are test indicator light.
Power management module 3 includes rechargeable battery, battery charging unit and battery capacity detection unit, and battery charging is single
Member uses usb mode to charge for the rechargeable battery using BQ24092 as core chips；Battery capacity detection unit is used
In the electricity for detecting the rechargeable battery, using BQ27411 as core chips, when electric quantity of rechargeable battery is too low, telecommunications is sent
Number to master controller MCU unit 7, by master controller MCU unit 7 control GPS module 1, WiFi module 2, data acquisition module 4 into
Enter stand-by operation state.As shown in Figure of description Figure 10 to Figure 12, peripheral circuit, the electric power detection of charging chip BQ24092
Chip BQ27411 peripheral circuit is chip manufacturer's recommended circuit, and the SDA pin of BQ27411, SCL pin are and master controller
The upper identical network label of MCULPC54113J256BD64 is conductively connected, and is passed respectively to master controller MCULPC54113J256BD64
The normal electricity electric signal of defeated rechargeable battery and under-voltage electric signal.In the module, two-color-dio light emitting diode is charging
Status indicator lamp, light emitting diode D4 are that rechargeable battery works normally indicator light, and light emitting diode D3 is the under-voltage finger of rechargeable battery
Show lamp.Supply voltage is 3.7V when USB direct charger, and the supply voltage of rechargeable battery is 4.2V；TPS61222 chip is boost chip,
The direct supply voltage of USB or rechargeable battery powered voltage are converted into 5V DC voltage；TPS62080 chip is decompression chip,
The direct supply voltage of USB or rechargeable battery powered voltage are converted into 3V DC voltage.
The present embodiment meets requirement of the current distributed data acquisition to monitoring range, increases in the case where wireless
The range for having added data to acquire；Reduce weight of equipment and makes the acquisition step that data are more convenient and breviaty inserting knot is many and diverse
Suddenly, so that working in the presence of a harsh environment in monitoring building and long-time becomes possibility；
The present embodiment realizes time synchronization truly under GPS time service, keeps collected data more accurate,
Increase the confidence level of data analysis result；The present embodiment by the simultaneous techniques of wireless transmission method and GPS effectively, reliably
It is combined together, the size of equipment is greatly reduced, save a large amount of manpower and material resources, improve the efficiency of data acquisition, subtract
Cost is lacked, reliable underlying basis is provided for the wireless sensor network and data testing system of setting up large-scale；
The present embodiment is carried out entire circuit by chips such as UM220-IIIL, USR-C216, LPC54113J256BD64
Complete modularized design, circuit performance is highly stable reliable, and failure rate is low, long service life, and simplifiedly circuit design is big
Amplitude shortens life cycle of the product, and enterprises production efficiency is very high.
Embodiment 2：
It is a kind of based on the WiFi wirelessly sensor node synchronous with GPS time service, including GPS module 1, WiFi module 2, power supply
Management module 3 and data acquisition module 4；Power management module 3 is GPS module 1, WiFi module 2, data acquisition module 4 mention
For working power；GPS module 1 is connect with satellite electric signal, is believed UTC time information, 1PPS pulse with UART communication mode
Number it is sent to data acquisition module 4.Data acquisition module 4 includes master controller MCU unit 7, A/D converter unit 5 and vibration
Dynamic acceleration transducer unit 6, vibration acceleration sensor unit 6 are realized in rising edge/failing edge of GPS module 1PPS pulse
The acquisition of vibration acceleration signal and ambient temperature signal on x, y, z direction, A/D converter unit 5 pass vibration acceleration
The analog signal of sensor output is converted to digital signal, and A/D converter unit sends the data to master control using SPI communication mode
The data of acquisition are sent to WiFi module 2 with UART serial communication mode by device MCU unit 7 processed, master controller MCU unit 7,
The information received is sent to other nodes or server terminal by WiFi module 2.
The LPC54113J256BD64 for the MCU model NXP company that master controller MCU unit 7 uses；A/D converter list
A/D conversion chip used by member 5 is the LTC2344-16 of TI company；Sensing used by vibration acceleration sensor unit 6
The ADXL356 of device model TI company.
It is sent to after the buffered amplifier unit caching amplification of the collected data of vibration acceleration sensor unit described
A/D converter unit, caching amplifier unit includes LT6236 amplifier chip, and LT6236 amplifier chip output end is connected on A/D
The input terminal of converter unit.Caching amplifier unit main function is to provide low output impedance, can be in the fast run-up of acquisition phase
Vertical analog signal.When entering acquisition, it also provides the isolation between signal source and electric charge stream at simulation input.
RANGE, ST1, ST2 pin of ADXL356 respectively with PIO1_2, PIO1_1, PIO1_ of LPC54113J256BD64
0 pin conduction is connected, and starts to carry out x, y, z side in rising edge/failing edge of GPS module 1PPS pulse for controlling ADXL356
The acquisition of upward vibration acceleration signal and ambient temperature signal；The STBY pin and master controller of ADXL356
The PIO1_3 pin of MCULPC54113J256BD64 is electrically connected, and is accelerated by master controller MCULPC54113J256BD64 to vibration
Standby/measurement operating mode of degree sensors A DXL356 is selected；TEMP pin, XOUT, YOUT, ZOUT pipe of ADXL356
Foot is conductively connected with the input pin of four LT6236 amplifier chips respectively, respectively by the vibration in ambient temperature signal, X-direction
It is defeated after dynamic acceleration signal, the vibration acceleration signal in Y direction, the vibration acceleration signal caching amplification in Z-direction
Out to A/D converter unit；The VIPBANA pin of vibration acceleration sensor ADXL356 and the A/D converter unit
The REFIN pin of LTC2344-16 is conductively connected, and is mainly used for providing the reference voltage of input signal to LTC2344-16 chip.
A/D converter LTC2344-16 is by the digital data transmission after conversion to the master controller
MCULPC54113J256BD64, master controller MCULPC54113J256BD64 are by the PD pin of LTC2344-16 to described
Standby/normal mode of operation of LTC2344-16 is controlled.As shown in Figure of description Fig. 5, CNV pin, SDI pin,
Identical network label is conductive on the uniform LPC54113J256BD64 chip of SCK1 pin, SDI0 pin, BUSY pin, CS pin
Connection；Its CNV pin is that A/D conversion starts to input, and CNV is not controlled by CS, allows to start independently of serial i/O bus state
Conversion；Its SDI pin receives the instruction that LPC54113J256BD64 is sent to LTC2344-16, and LPC54113J256BD64 is first sent out
The flat input range of power transmission is instructed to LTC2344-16, and it is corresponding level model that then LTC2344-16, which controls the level of input interface,
It encloses；Its SCK1 pin is CMOS serial clock input terminal；Its SDI0 pin is the output end of entire A/D chip, i.e. analog signal
Be converted to the output end of digital signal；Its BUSY pin is easy for MCU and judges the whether busy pin of A/D chip, busy signal
Expression is being converted；CS pin is chip selection input terminal, and serial data I/O bus is enabled when CS is low, in CS high
Disabling, enables, CS can also open external clock SCKI in Hi-Z.
For GPS module using the UM220-IIIL model module led to star core, RF_IN pin is aerial signal input
End；The PIO0_2 pin of its AADET_N pin and master controller MCULPC54113J256BD64 are conductively connected, for active
The selection of antenna, passive antenna type；The PIO0_3 pin of its GPIO2 pin and master controller MCULPC54113J256BD64
It is conductively connected, for judging whether antenna is normal over the ground；Its TIME PULSE pin and master controller
The PIO0_4 pin of MCULPC54113J256BD64 is conductively connected, for 1PPS pulse signal to be sent to the master controller
MCULPC54113J256BD64；The PIO0_6 pin conduction of its RXD1 pin and master controller MCULPC54113J256BD64 connect
It connects, for receiving the instruction from master controller MCULPC54113J256BD64；Its TXD1 pin and master controller
The PIO0_5 pin of MCULPC54113J256BD64 is conductively connected, after GPS module receives instruction, to master controller
MCULPC54113J256BD64 sends the UTC time information that master controller MCULPC54113J256BD64 specifies data format.
Three light emitting diodes in the module are test indicator light.
When sensor node is gateway node, ap mode+station mode is set by USR-C216 wireless module,
The data received from the outside can be sent to MCU by sensor node at this time, and can send out the data that internal acquisition module acquires
It sees off；Briefly, sensor node has receive capabilities to have sending function again at this time.WiFi module 2 using Ji
The USR-C216 wireless module of southern someone company；Its RFIO pin is aerial signal input terminal；Its USRT0_TX pin and master control
The PIO0_0 pin of device MCULPC54113J256BD64 processed is conductively connected, for being sent to the data received from the outside always
Controller MCULPC54113J256BD64；The PIO0_1 of its USRT0_RX pin and master controller MCULPC54113J256BD64
Pin is conductively connected, and the data for acquiring the data acquisition module 4 are sent；Its nReload pin and master control
The PIO1_8 pin of device MCULPC54113J256BD64 is conductively connected, by master controller MCULPC54113J256BD64 to WiFi
Network is configured, and 0.5-3s starting Simple Config or Airkiss distribution is dragged down, and is dragged down 3s or more recovery factory and is set
It sets；The PIO1_7 pin of its nLink pin and master controller MCULPC54113J256BD64 are conductively connected, which is WiFi
Module connection instruction pin；The PIO1_9 pin conduction of its nReady pin and master controller MCULPC54113J256BD64 connect
It connects, which indicates WiFi module instruction pin working properly.Five light emitting diodes in the module are test indicator light.
Power management module 3 includes rechargeable battery, battery charging unit and battery capacity detection unit, and battery charging is single
Member uses usb mode to charge for the rechargeable battery using BQ24092 as core chips；Battery capacity detection unit is used
In the electricity for detecting the rechargeable battery, using BQ27411 as core chips, when electric quantity of rechargeable battery is too low, telecommunications is sent
Number to master controller MCU unit 7, by master controller MCU unit 7 control GPS module 1, WiFi module 2, data acquisition module 4 into
Enter stand-by operation state.As shown in Figure of description Figure 10-12, peripheral circuit, the electric power detection chip of charging chip BQ24092
BQ27411 peripheral circuit is chip manufacturer's recommended circuit, and the SDA pin of BQ27411, SCL pin are and master controller
The upper identical network label of MCULPC54113J256BD64 is conductively connected, and is passed respectively to master controller MCULPC54113J256BD64
The normal electricity electric signal of defeated rechargeable battery and under-voltage electric signal.In the module, two-color-dio light emitting diode is charging
Status indicator lamp, light emitting diode D4 are that rechargeable battery works normally indicator light, and light emitting diode D3 is the under-voltage finger of rechargeable battery
Show lamp.Supply voltage is 3.7V when USB direct charger, and the supply voltage of rechargeable battery is 4.2V；TPS61222 chip is boost chip,
The direct supply voltage of USB or rechargeable battery powered voltage are converted into 5V DC voltage；TPS62080 chip is decompression chip,
The direct supply voltage of USB or rechargeable battery powered voltage are converted into 3V DC voltage.
The present embodiment meets requirement of the current distributed data acquisition to monitoring range, increases in the case where wireless
The range for having added data to acquire；Reduce weight of equipment and makes the acquisition step that data are more convenient and breviaty inserting knot is many and diverse
Suddenly, so that working in the presence of a harsh environment in monitoring building and long-time becomes possibility；
The present embodiment realizes time synchronization truly under GPS time service, keeps collected data more accurate,
Increase the confidence level of data analysis result；The present embodiment by the simultaneous techniques of wireless transmission method and GPS effectively, reliably
It is combined together, the size of equipment is greatly reduced, save a large amount of manpower and material resources, improve the efficiency of data acquisition, subtract
Cost is lacked, reliable underlying basis is provided for the wireless sensor network and data testing system of setting up large-scale；
The present embodiment is carried out entire circuit by chips such as UM220-IIIL, USR-C216, LPC54113J256BD64
Complete modularized design, circuit performance is highly stable reliable, and failure rate is low, long service life, and simplifiedly circuit design is big
Amplitude shortens life cycle of the product, and enterprises production efficiency is very high.
Connecting wire line width between the RFIO pin and antenna RF of the present embodiment USR-C216 wireless module is 20mil,
It is designed according to impedance matching.The microwave signal that the present embodiment reaches all high frequencies by designing impedance matching all can
The purpose for reaching load point does not have signal reflex and returns source point, to promote source benefit.
In conclusion only presently preferred embodiments of the present invention, is not used to limit the scope of implementation of the present invention, it is all according to
Equivalent changes and modifications carried out by shape described in scope of the invention as claimed, construction, feature and spirit should be included in this
In the scope of the claims of invention.
Claims (10)
1. a kind of based on the wireless sensor node synchronous with GPS time service of WiFi, it is characterised in that：
Including GPS module, WiFi module, power management module and data acquisition module；The power management module is described
GPS module, the WiFi module, the data acquisition module provide working power；The GPS module and satellite electric signal connect
It connects, UTC time information, 1PPS pulse signal is sent to by the data acquisition module, the data with UART communication mode
Acquisition module carries out data acquisition in rising edge/failing edge of the GPS module 1PPS pulse, and by data with serial communication
Mode is sent to WiFi module, and the information received is sent to other nodes or server terminal by the WiFi module.
2. according to claim 1 based on the wireless sensor node synchronous with GPS time service of WiFi, it is characterised in that：Institute
Stating data acquisition module includes master controller MCU unit, A/D converter unit and vibration acceleration sensor unit, described
Vibration acceleration sensor unit is realized on x, y, z direction in the rising edge/failing edge for the 1PPS pulse that the GPS module is sent
Vibration acceleration signal and ambient temperature signal acquisition, the A/D converter unit exports vibration acceleration sensor
Analog signal be converted to digital signal, the A/D converter unit sends the data to the master control using SPI communication mode
The data of acquisition are sent to the WiFi mould with UART serial communication mode by device MCU unit processed, the master controller MCU unit
Block.
3. according to claim 1 or 2 based on the wireless sensor node synchronous with GPS time service of WiFi, it is characterised in that：
The A/D is sent to after the buffered amplifier unit caching amplification of the collected data of vibration acceleration sensor unit to turn
Exchange unit, the caching amplifier unit include LT6236 amplifier chip, and LT6236 amplifier chip output end is connected on A/D and turns
The input terminal of exchange unit.
4. according to claim 3 based on the wireless sensor node synchronous with GPS time service of WiFi, it is characterised in that：Institute
State the LPC54113J256BD64 of the MCU model NXP company of master controller MCU unit use；The A/D converter unit institute
The A/D conversion chip used is the LTC2344-16 of TI company；Sensor used by the vibration acceleration sensor unit
The ADXL356 of model TI company.
5. according to claim 4 based on the wireless sensor node synchronous with GPS time service of WiFi, it is characterised in that：Institute
State RANGE, ST1, ST2 pin of ADXL356 PIO1_2, PIO1_1, PIO1_0 with the LPC54113J256BD64 respectively
Pin conduction is connected, and starts to carry out x, y, z direction in rising edge/failing edge of GPS module 1PPS pulse for controlling ADXL356
On vibration acceleration signal and ambient temperature signal acquisition；The STBY pin and master controller of the ADXL356
The PIO1_3 pin of MCULPC54113J256BD64 is electrically connected, and is accelerated by master controller MCULPC54113J256BD64 to vibration
Standby/measurement operating mode of degree sensors A DXL356 is selected；The TEMP pin of the ADXL356, XOUT, YOUT,
ZOUT pin is conductively connected with the input pin of four LT6236 amplifier chips respectively, respectively by ambient temperature signal, X-direction
On vibration acceleration signal, the vibration acceleration signal in Y direction, the vibration acceleration signal in Z-direction caching put
It exports after big to A/D converter unit；The VIPBANA pin and the A/D of the vibration acceleration sensor ADXL356 is converted
The REFIN pin of the LTC2344-16 of device unit is conductively connected, and is mainly used for providing input signal to LTC2344-16 chip
Reference voltage.
6. according to claim 5 based on the wireless sensor node synchronous with GPS time service of WiFi, it is characterised in that：Institute
A/D converter LTC2344-16 is stated by the digital data transmission after conversion to the master controller MCULPC54113J256BD64,
The master controller MCULPC54113J256BD64 by the PD pin of LTC2344-16 to the LTC2344-16 it is standby/
Normal mode of operation is controlled.
7. according to claim 4 based on the wireless sensor node synchronous with GPS time service of WiFi, it is characterised in that：Institute
GPS module is stated using the UM220-IIIL model module led to star core, RF_IN pin is aerial signal input terminal；Its
The PIO0_2 pin of AADET_N pin and master controller MCULPC54113J256BD64 are conductively connected, for active antenna,
The selection of passive antenna type；The PIO0_3 pin conduction of its GPIO2 pin and master controller MCULPC54113J256BD64 connect
It connects, for judging whether antenna is normal over the ground；Its TIME PULSE pin is with master controller MCULPC54113J256BD64's
PIO0_4 pin is conductively connected, for 1PPS pulse signal to be sent to the master controller MCULPC54113J256BD64；Its
The PIO0_6 pin of RXD1 pin and master controller MCULPC54113J256BD64 are conductively connected, and come from master control for receiving
The instruction of device MCULPC54113J256BD64；The PIO0_5 of its TXD1 pin and master controller MCULPC54113J256BD64 are managed
Foot is conductively connected, and after GPS module receives instruction, sends master controller to master controller MCULPC54113J256BD64
MCULPC54113J256BD64 specifies the UTC time information of data format.
8. according to claim 4 based on the wireless sensor node synchronous with GPS time service of WiFi, it is characterised in that：Institute
State the USR-C216 wireless module using Jinan someone company of WiFi module；Its RFIO pin is aerial signal input
End；The PIO0_0 pin of its USRT0_TX pin and master controller MCULPC54113J256BD64 are conductively connected, for will be from outer
The data that face receives are sent to master controller MCULPC54113J256BD64；Its USRT0_RX pin and master controller
The PIO0_1 pin of MCULPC54113J256BD64 is conductively connected, for sending the data of the data collecting module collected
It goes out；The PIO1_8 pin of its nReload pin and master controller MCULPC54113J256BD64 are conductively connected, by master control
Device MCULPC54113J256BD64 configures WiFi network, drag down 0.5-3s starting Simple Config or
Airkiss distribution drags down 3s or more factory reset；Its nLink pin is with master controller MCULPC54113J256BD64's
PIO1_7 pin is conductively connected, which is WiFi module connection instruction pin；Its nReady pin and master controller
The PIO1_9 pin of MCULPC54113J256BD64 is conductively connected, which indicates WiFi module instruction pin working properly.
9. according to claim 8 based on the wireless sensor node synchronous with GPS time service of WiFi, it is characterised in that：Institute
The connecting wire line width stated between the RFIO pin of USR-C216 wireless module and antenna RF is designed according to impedance matching.
10. according to claim 3 based on the wireless sensor node synchronous with GPS time service of WiFi, it is characterised in that：Institute
Stating power management module includes rechargeable battery, battery charging unit, battery capacity detection unit and voltage conversion unit, described
Battery charging unit uses usb mode to charge for the rechargeable battery using BQ24092 as core chips；The battery
Electric power detection unit is used to detect the electricity of the rechargeable battery, using BQ27411 as core chips, in the rechargeable battery electricity
When measuring too low, electric signal is sent to the master controller MCU unit, the GPS mould is controlled by the master controller MCU unit
Block, the WiFi module, the data acquisition module enter stand-by operation state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811074938.2A CN108923878B (en) | 2018-09-14 | 2018-09-14 | Sensor node based on WiFi wireless and GPS time service synchronization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811074938.2A CN108923878B (en) | 2018-09-14 | 2018-09-14 | Sensor node based on WiFi wireless and GPS time service synchronization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108923878A true CN108923878A (en) | 2018-11-30 |
| CN108923878B CN108923878B (en) | 2024-03-22 |
Family
ID=64409159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811074938.2A Active CN108923878B (en) | 2018-09-14 | 2018-09-14 | Sensor node based on WiFi wireless and GPS time service synchronization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108923878B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109995454A (en) * | 2019-04-29 | 2019-07-09 | 上海窗魅光学科技有限公司 | The system and method for wireless synchronization function are realized based on GPS |
| CN110505685A (en) * | 2019-08-29 | 2019-11-26 | 成都精位科技有限公司 | Base station calibration method and device based on global position system |
| CN111323665A (en) * | 2020-03-18 | 2020-06-23 | 合肥瀚度电力科技有限公司 | Lightning arrester monitoring device, method and system based on GPS time service ratio correction |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090080290A1 (en) * | 2007-09-21 | 2009-03-26 | Ray Clifford H | Method and apparatus for correcting the timing function in a nodal seismic data acquisition unit |
| US20100017139A1 (en) * | 2007-09-21 | 2010-01-21 | Geospace Technologies, Lp | Low-power satellite-timed seismic data acquisition system |
| CN104316168A (en) * | 2014-11-19 | 2015-01-28 | 中国人民解放军总参谋部工程兵科研三所 | Self-calibration networking type wireless vibration tester |
| CN105093022A (en) * | 2015-08-12 | 2015-11-25 | 国家电网公司 | Wireless synchronization data acquisition control method and system |
| CN105487448A (en) * | 2015-12-30 | 2016-04-13 | 中交路桥技术有限公司 | Sensing data acquisition device on the basis of GPS synchronization time service |
| CN205657845U (en) * | 2016-05-25 | 2016-10-19 | 北京动量科技有限责任公司 | Based on GPS time reference multi -point synchronization communication device |
| CN106123965A (en) * | 2016-08-14 | 2016-11-16 | 上海岩联工程技术有限公司 | The wireless vibratory string acquisition system of a kind of synchronized sampling and method |
| CN106341879A (en) * | 2016-05-24 | 2017-01-18 | 北京动量科技有限责任公司 | GPS time reference-based multi-point synchronous communication method and device |
| CN206893080U (en) * | 2017-07-12 | 2018-01-16 | 东华理工大学 | It is a kind of based on the seismic signal acquiring system being wirelessly transferred |
| CN208489854U (en) * | 2018-09-14 | 2019-02-12 | 扬州英迈克测控技术有限公司 | Based on the wireless sensor node synchronous with GPS time service of WiFi |
-
2018
- 2018-09-14 CN CN201811074938.2A patent/CN108923878B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090080290A1 (en) * | 2007-09-21 | 2009-03-26 | Ray Clifford H | Method and apparatus for correcting the timing function in a nodal seismic data acquisition unit |
| US20100017139A1 (en) * | 2007-09-21 | 2010-01-21 | Geospace Technologies, Lp | Low-power satellite-timed seismic data acquisition system |
| CN104316168A (en) * | 2014-11-19 | 2015-01-28 | 中国人民解放军总参谋部工程兵科研三所 | Self-calibration networking type wireless vibration tester |
| CN105093022A (en) * | 2015-08-12 | 2015-11-25 | 国家电网公司 | Wireless synchronization data acquisition control method and system |
| CN105487448A (en) * | 2015-12-30 | 2016-04-13 | 中交路桥技术有限公司 | Sensing data acquisition device on the basis of GPS synchronization time service |
| CN106341879A (en) * | 2016-05-24 | 2017-01-18 | 北京动量科技有限责任公司 | GPS time reference-based multi-point synchronous communication method and device |
| CN205657845U (en) * | 2016-05-25 | 2016-10-19 | 北京动量科技有限责任公司 | Based on GPS time reference multi -point synchronization communication device |
| CN106123965A (en) * | 2016-08-14 | 2016-11-16 | 上海岩联工程技术有限公司 | The wireless vibratory string acquisition system of a kind of synchronized sampling and method |
| CN206893080U (en) * | 2017-07-12 | 2018-01-16 | 东华理工大学 | It is a kind of based on the seismic signal acquiring system being wirelessly transferred |
| CN208489854U (en) * | 2018-09-14 | 2019-02-12 | 扬州英迈克测控技术有限公司 | Based on the wireless sensor node synchronous with GPS time service of WiFi |
Non-Patent Citations (1)
| Title |
|---|
| 荣文钲;沈统;吕中云;江山;郭磊;: "分布式无线地震数据采集同步技术研究", 计算机测量与控制, no. 02 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109995454A (en) * | 2019-04-29 | 2019-07-09 | 上海窗魅光学科技有限公司 | The system and method for wireless synchronization function are realized based on GPS |
| CN110505685A (en) * | 2019-08-29 | 2019-11-26 | 成都精位科技有限公司 | Base station calibration method and device based on global position system |
| CN111323665A (en) * | 2020-03-18 | 2020-06-23 | 合肥瀚度电力科技有限公司 | Lightning arrester monitoring device, method and system based on GPS time service ratio correction |
| CN111323665B (en) * | 2020-03-18 | 2022-06-28 | 合肥瀚度电力科技有限公司 | Lightning arrester monitoring device, method and system based on GPS time service ratio correction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108923878B (en) | 2024-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102116847B (en) | Single battery performance parameter acquisition system for battery pack | |
| CN101908377B (en) | Modular data logger based on Zigbee wireless communication and operating method thereof | |
| CN108923878A (en) | Based on the wireless sensor node synchronous with GPS time service of WiFi | |
| CN109246638A (en) | Based on the wireless collecting method with the signal synchronous collection system of GPS time service of WiFi | |
| CN107105056A (en) | A kind of cloud control electric meter system based on WiFi communication | |
| CN110419066A (en) | Sensor device and sensor network system | |
| CN102621380B (en) | Centralized intelligent electric meter | |
| CN106646122A (en) | Line distribution monitoring system based on wireless transmission and synchronization sampling method | |
| CN103983939B (en) | Electric energy meter temperature rise based on wireless sense network accurately detects localization method and its device | |
| CN208424382U (en) | Based on WiFi wirelessly with the distributed signal synchronous of GPS time service | |
| CN208489854U (en) | Based on the wireless sensor node synchronous with GPS time service of WiFi | |
| CN202424727U (en) | Portable testing device of micropower wireless communication module | |
| CN107688153B (en) | Distributed wireless bus battery screening and testing system and testing method | |
| CN211239790U (en) | Photovoltaic conflux case monitoring facilities | |
| CN203024872U (en) | Self power supply type wireless temperature measurement system | |
| CN202372630U (en) | Wireless sensor network monitoring device for states of photovoltaic power station storage batteries | |
| CN204556022U (en) | A kind of temperature/humiditydetection detection system based on ZigBee | |
| CN201984103U (en) | Lightning arrester current leakage on-line detection device | |
| CN204461635U (en) | Based on solar powered high voltage bus wireless temperature monitoring device | |
| CN103246223A (en) | Zigbee-based sensing measurement and control system | |
| CN109309559A (en) | Based on WiFi wirelessly with the distributed signal synchronous of GPS time service | |
| CN205429874U (en) | Photovoltaic microgrid system based on thing networking sensing technology | |
| CN107786165A (en) | A kind of photovoltaic battery array performance monitoring system based on ZigBee | |
| CN212012257U (en) | Energy gateway with power grid detection and power load identification capabilities | |
| CN208922464U (en) | A kind of real-time acquisition system of article moving condition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |