CN110411590A - A kind of wireless temperature-measuring terminal - Google Patents
A kind of wireless temperature-measuring terminal Download PDFInfo
- Publication number
- CN110411590A CN110411590A CN201810399272.1A CN201810399272A CN110411590A CN 110411590 A CN110411590 A CN 110411590A CN 201810399272 A CN201810399272 A CN 201810399272A CN 110411590 A CN110411590 A CN 110411590A
- Authority
- CN
- China
- Prior art keywords
- measuring terminal
- temperature
- wireless temperature
- mcu processor
- wake
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The embodiment of the invention discloses a kind of wireless temperature-measuring terminals, including temperature sensor, for sending MCU processor for collected temperature data；The MCU processor being connected with the temperature sensor, for handling the temperature data received, and by treated, temperature data is sent to communication module；The communication module being connected with the MCU processor is sent to communication base station by low-power consumption wide area wireless network for receiving treated the temperature data, and by treated the temperature data.The wireless temperature-measuring terminal is communicated using low-power consumption wide area wireless network with communication base station, using the wireless temperature-measuring terminal of ZigBee communication technology in compared with the prior art, addition communication relay set is not needed, reduce equipment cost, and use low power dissipation design, carry out temperature measurement on-line work that can be long-term, stable.
Description
Technical field
The present invention relates to field of communication technology, specially a kind of wireless temperature-measuring terminal.
Background technique
The temperature monitoring of power equipment refers to switches numerous in substation, connector, disconnecting link, capacitor, electricity in substation
The equiprobable heat generating spot of cable carries out temperature monitoring.These positions may cause to generate heat due to overload, failure and other reasons, if not
Alarm can timely be monitored, it is possible to will cause fire incident and property loss.In existing temperature monitoring mode, wirelessly
Thermometric mode will not generate interference and cost more than wired thermometric mode to other equipment since its real-time is good, completely insulated
Low reason becomes a kind of temperature measurement on-line mode most common now.
Converting station electric power equipment wireless temperature-measuring terminal currently on the market generallys use ZigBee communication technology and carries out wirelessly
Communication.Since the communicating wireless signals ability of ZigBee communication technology is weak, penetrability is not strong, substation central switch cabinet and
Under the closed environments such as capacitor room, needs in central switch cabinet or capacitor indoor deployment communication relay set, ability are effective
Signal transmission is completed, this adds increased equipment costs.And the power consumption of trunking is higher, and is installed in closed environment,
Cause trunking power supply difficult, can not long-term work wireless temperature-measuring terminal will be made to acquire once trunking stops working
Data can not timely feedback the generation that accident is easy to cause to operation maintenance personnel.
It can be seen that needing a kind of completion temperature measurement on-line work that can be long-term, stable at present, and it will not additionally increase and set
The wireless temperature-measuring terminal of standby cost.
Summary of the invention
The present invention provides a kind of wireless temperature-measuring terminal, can solve in the prior art due to using ZigBee communication technology
Wireless temperature-measuring terminal need the problem of can not carrying out temperature measurement on-line work caused by installing trunking for a long time, can not increase
Under the premise of oil (gas) filling device cost, long-term, stable completion temperature measurement on-line work.
In order to achieve the above objectives, the present invention provides the following technical scheme that
A kind of wireless temperature-measuring terminal, comprising:
Temperature sensor, for sending MCU processor for collected temperature data；
The MCU processor being connected with the temperature sensor, to the temperature data received
Reason, and temperature data is sent to communication module by treated；
The communication module being connected with the MCU processor, for receiving treated the temperature data, and by institute
Temperature data of stating that treated is sent to communication base station by low-power consumption wide area wireless network LPWA.
Preferably, the wireless temperature-measuring terminal further include:
The power module being respectively connected with the temperature sensor, the MCU processor and the communication module, for for
The temperature sensor, the MCU processor and communication module power supply.
Preferably, the MCU processor is also used to by reducing physical capacitors, conversion factor, clock frequency or power supply electricity
The mode of pressure reduces the dynamic power of the MCU processor and the communication module, makes the MCU processor and the communication mould
Block enters dormant state；The dynamic power is the capacitor charge and discharge power in wireless temperature-measuring terminal.
Preferably, the wireless temperature-measuring terminal further include:
The wake-up module being connected with the MCU processor, the wake-up information for being sent according to the communication base station wake up
The MCU processor and the communication module of dormant state.
Preferably, if the network address waken up in information comprising wireless temperature-measuring terminal to be waken up, the wake-up mould
Block is also used to verify the network address of wireless temperature-measuring terminal and the network address of current wireless temperature-measuring terminal to be waken up
It is no identical, if they are the same, then wake up the MCU processor and the communication module of dormant state.
Preferably, the wake-up module is also used to reach present count in the character numerical value of the wake-up information that receives
When value, the MCU processor and the communication module of dormant state are waken up.
Preferably, the MCU processor is also used to receive the wake-up information that the wake-up module is sent when being waken up,
Verify the network address of the wireless temperature-measuring terminal to be waken up in the wake-up information and the net of current wireless temperature-measuring terminal
Whether network address is identical, if they are the same, then wakes up the communication module of dormant state.
Preferably, the wireless temperature-measuring terminal is connected, for passing through Zhou with the communication base station using Star Network structure
Spread spectrum CSS and hopped orthogonal frequency division multiplexing technology FH-OFDM of singing realizes the wireless temperature-measuring terminal and the communication base station
Between low-power consumption wide area wireless network LPWA communication, will described treated that temperature data passes through low-power consumption wide area wireless network
LPWA communication is sent to communication base station.
Preferably, the communication module, further includes:
Communication interface, for carrying out parameter configuration to the wireless temperature-measuring terminal.
As can be seen from the above technical solutions, the invention discloses a kind of wireless temperature-measuring terminal, including temperature sensor, it is used for
MCU processor is sent by collected temperature data；The MCU processor being connected with the temperature sensor, for pair
The temperature data received is handled, and temperature data is sent to communication module by treated；With MCU processing
The connected communication module of device, for receiving treated the temperature data, and by described, treated that temperature data leads to
It crosses low-power consumption wide area wireless network and is sent to communication base station.The wireless temperature-measuring terminal using low-power consumption wide area wireless network with communicate
Base station is communicated, compared with the prior art the middle wireless temperature-measuring terminal using ZigBee communication technology, does not need addition communication
Trunking, reduces equipment cost, and uses low power dissipation design, carry out temperature measurement on-line work that can be long-term, stable.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram of wireless temperature-measuring terminal disclosed by the embodiments of the present invention；
Fig. 2 is the structural schematic diagram of the wireless temperature-measuring terminal disclosed by the invention that power module is added；
Fig. 3 is the baseband system model framework chart of the FH-OFDM communication technology in the present invention；
Fig. 4 is the structural schematic diagram of the wireless temperature-measuring terminal disclosed by the invention that wake-up module is added.
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, it is clear that 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, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It can be seen from background technology that converting station electric power equipment wireless temperature-measuring terminal currently on the market generallys use ZigBee
The communication technology carries out wireless communication.Since the communicating wireless signals ability of ZigBee communication technology is weak, penetrability is not strong, in power transformation
Under the closed environments such as the central switch cabinet stood and capacitor room, need in central switch cabinet or capacitor indoor deployment communication relay
Equipment could effectively complete signal transmission, and this adds increased equipment costs.And the power consumption of trunking is higher, and pacifies
Loaded in closed environment, causing trunking power supply difficult, can not long-term work will make once trunking stops working
The data of wireless temperature-measuring terminal acquisition can not timely feedback the generation that accident is easy to cause to operation maintenance personnel.
Therefore, it the present invention provides a kind of wireless temperature-measuring terminal, can solve in the prior art due to logical using ZigBee
The wireless temperature-measuring terminal of letter technology needs the problem of can not carrying out temperature measurement on-line work caused by installing trunking for a long time, can
Under the premise of not increasing equipment cost, long-term, stable completion temperature measurement on-line work.
As shown in Figure 1, being a kind of structural schematic diagram of wireless temperature-measuring terminal disclosed by the embodiments of the present invention, the wireless temperature measurement
Terminal includes:
Temperature sensor 101, for sending MCU processor 102 for collected temperature data.
Specifically, the temperature sensor 101 uses high-precision low-power consumption temperature sensor, thermometric resolution ratio is 0.1 DEG C,
Temperature measurement accuracy is 0.5 DEG C.
The MCU processor 102 being connected with the temperature sensor 101, for the temperature data received
It is handled, and temperature data is sent to communication module 103 by treated.
Specifically, the MCU processor 102 uses low power processor, it can be realized data acquisition, information transmit-receive, match
Set the functions such as regulation and power management.
The communication module 103 being connected with the MCU processor 102, for receiving treated the temperature data,
And communication base station is sent by low-power consumption wide area wireless network by treated the temperature data.
Wherein, low-power consumption wide area wireless network is a kind of novel long range low-consumption wireless technology, aims at low bandwidth, low
Power consumption, the remote, Internet of Things that largely connects and design.Low-power consumption wide area wireless network, which has, covers wide, the more, rate of connection
The features such as low, at low cost, power consumption is few, can support large-scale network-estabilishing, ranging and in terms of with table very outstanding
It is existing.
Specifically, the communication module 103 is low-power consumption half-duplex low-power wireless data transmission module, insertion high speed is low
Power consumption single-chip microcontroller and high-performance spread spectrum chip and radio frequency chip, are able to carry out efficient spread spectrum communication, while having outstanding resist
Interference.
It should be noted that the communication module 103 can increase substantially sensitivity using high-performance spread spectrum chip, most
Highly sensitive reachable 135dBm, this makes communication module 103 that can also substantially extend transmission distance under low-power consumption, therefore does not need to increase
Add relay or other complicated communications infrastructures, to reduce equipment cost.
In addition, the communication module 103 has multiple optional communication channels, and support online modification serial ports rate, transmitting-receiving
The many kinds of parameters such as frequency, transmission power, radio frequency rate.
The embodiment of the invention discloses a kind of wireless temperature-measuring terminals, including temperature sensor 101, are used for collected temperature
Degree evidence is sent to MCU processor 102；The MCU processor 102 being connected with the temperature sensor 101, for reception
To the temperature data handled, and will treated that temperature data is sent to communication module 103；With MCU processing
The connected communication module 103 of device 102, for receiving treated the temperature data, and will treated the temperature
Data are sent to communication base station by low-power consumption wide area wireless network.The wireless temperature-measuring terminal uses low-power consumption wide area wireless network
It is communicated with communication base station, the middle wireless temperature-measuring terminal using ZigBee communication technology, does not need to add compared with the prior art
Add communication relay set, reduce equipment cost, and uses low power dissipation design, carry out temperature measurement on-line that can be long-term, stable
Work.
Optionally, the wireless temperature-measuring terminal further include:
The power supply mould being respectively connected with the temperature sensor 101, the MCU processor 102 and the communication module 103
Block 104, for powering for the temperature sensor 101, the MCU processor 102 and the communication module 103.
As shown in Fig. 2, for the structural schematic diagram of the wireless temperature-measuring terminal of power module 104 is added.Specifically, described wireless
Temperature measurement terminal use low power dissipation design, battery can be used and be powered as power module 104, can it is long-term, stable into
The work of row temperature measurement on-line.And since itself size is smaller, the safe distance requirement under electric system application scenarios can satisfy
And it is easily installed.
Optionally, the wireless temperature-measuring terminal is connected, for passing through Zhou with the communication base station using Star Network structure
It sings spread spectrum (Chirp Spread Spectrum, CSS) and hopped orthogonal frequency division multiplexing technology (Frequency-Hopping
Orthogonal Frequency Division Multiplexing, FH-OFDM) realize the wireless temperature-measuring terminal with it is described
Low-power consumption wide area wireless network communication between communication base station, treated by described in, and temperature data passes through low-power consumption wide-area wireless
Network communication is sent to communication base station.
Wherein, for CSS spread spectrum in addition to strong with the anti-fading ability of conventional spread spectrum technology, ability of anti-interception is strong, and processing increases
The advantages such as the advantages that benefit is big also has power spectral density low, and anti-deviation capability is strong, long transmission distance, and system power dissipation is low.These are excellent
Point is so that the signal needed for CSS spread spectrum can satisfy under the closed environments such as the central switch cabinet of substation and capacitor room is sent out
Penetrate the requirements such as low in energy consumption, communications reliability and stability are good, strong antijamming capability, battery duration of power supply are long.
In addition, the CSS spread spectrum that this programme uses, not only has extraordinary anti-interference, noise resisting ability, additionally it is possible to
It is flexible to carry out multiaddress multiplexing, it is highly suitable for being communicated in the electric power environmentals such as substation.CSS spread spectrum due to its from
The exclusive pulse compression characteristics of body can effectively combine traditional amplitude modulation, frequency modulation(PFM) and phase-modulation,
A kind of efficient various dimensions multiaddress technology (Multiple Dimensional Multiple Access, MDMA) is formd,
More effective information transmitting can be carried out with lower power consumption, can not only make full use of precious frequency spectrum resource, additionally it is possible to meet
Requirement of the Low rate wireless personal area network to power consumption.Simultaneously as the generation of chirp signal and matching treatment mainly pass through sound surface
Wave filter (Surface Acoustic Wave, SAW) is completed, and the spread speed of sound wave only has propagation velocity of electromagnetic wave
Ten a ten thousandths, so be easy to carry out signal sampling and signal processing on SAW filter, this is also largely
Reduce the complexity and power consumption of wireless temperature measurement system physical layer.These factors make during CSS spread spectrum extremely meets
The reason of communicating requirement of low-power wide-area, wireless network, this is also present invention selection CSS spread spectrum.
In addition, the present invention also applies the FH-OFDM communication technology, the FH-OFDM communication technology is in ofdm system
On the basis of introduce frequency hopping, realize subcarrier frequency hopping communications.
Ofdm communication technology is as a kind of multi-carrier modulation technology, by data flow by serial to parallel conversion, be assigned to it is multiple just
It is transmitted on the subcarrier of friendship, greatly improves the availability of frequency spectrum of system.The present invention is more using ofdm communication technology
Carrier characteristics are dynamically selected one or more according to frequency hopping pattern from the subcarrier of ofdm communication technology in conjunction with frequency hopping
A subcarrier is used for transmission data, to realize frequency hopping communications.
As shown in figure 3, the baseband system model framework chart for the FH-OFDM communication technology is being sent based on ofdm system
Increase inverse frequency hopping mapping block before holding serial to parallel conversion, increases inverse frequency hopping mapping block after the parallel serial conversion of receiving end, formed new
FH-OFDM system.The frequency hopping mapping block is frequency-hopped data memory, and storage unit number is equal to the son in ofdm system
Variable number, major function are to generate Frequency Hopping Signal.Inverse frequency hopping mapping block is equally a frequency-hopped data memory, storage
Unit number is also equal to the subcarrier number of ofdm system, its major function is parsing Frequency Hopping Signal.
FH-OFDM system combines the advantage of ofdm communication technology compared with traditional frequency-hopping system, passes through subcarrier frequency point
Jump realize frequency hopping communications, due to fast discrete Fourier transformation (Fast Fourier Transformation, FFT)
Introducing, ofdm system is digitized so that the frequency-hopping communication system based on OFDM can also realize digitlization, and
FH-OFDM system will be sent on Deta bearer to different subcarriers using frequency hopping pattern and be transmitted, and eliminate traditional frequency hopping
The frequency synthesizer and filter group of communication system, thus wireless temperature measurement system has the advantages of simple structure and easy realization.
Secondly, FH-OFDM system only needs to increase fast discrete inverse Fourier transform relative to traditional frequency-hopping communication system
(Inverse Fast Fourier Transform, IFFT) or fast discrete Fourier transformation (Fast Fourier
Transformation, FFT) the calculating points of unit can be achieved with the increase of FH-OFDM system hops points, therefore it can be very
The processing gain of FH-OFDM system is improved conveniently by frequency hopping points are increased, to improve FH-OFDM system rejection to disturbance energy
Power.Simultaneously as FH-OFDM is the frequency hopping communications realized on the basis of ofdm system, thus as ofdm system, equally
Have the higher availability of frequency spectrum and stronger anti-fading ability.
In addition, when the every selected subcarrier number of jump of frequency hopping pattern is less than the subcarrier number in FH-OFDM system,
Some useless signals can be transmitted, on other not selected subcarriers to enhance the concealment of signal.Due to subcarrier
Orthogonality, these useless signals can't to useful signal generate interference.
Optionally, the MCU processor 102 is also used to by reducing physical capacitors, conversion factor, clock frequency or confession
Piezoelectric voltage reduces the dynamic power of the MCU processor 102 and the communication module 103, makes the MCU processor 102 and institute
Communication module 103 is stated into dormant state.
Specifically, dynamic power management technology is used in the embodiment of the present invention, the MCU processor in wireless temperature-measuring terminal
The operation power of the hardware modules such as 102 and communication module 103 is divided into dynamic power and static power two parts, and static power refers to
Power when circuit state is stablized, order of magnitude very little.Dynamic power refers to the capacitor charge and discharge power in circuit, generally in electricity
It is generated when the load running of road, occupies larger specific gravity in operation power.Wherein, the calculation formula (1) of dynamic power is as follows:
Pdynamic=α CV2f (1)
In formula (1), V indicates that supply voltage, C indicate that physical capacitors, f indicate clock frequency, and α indicates activity factor.
By above-mentioned formula (1) it is found that the dynamic of MCU processor 102 and communication module 103 can be reduced by four kinds of methods
Power makes the MCU processor 102 and the communication module 103 enter dormant state, which comprises
1, the charge of physical capacitors C or circuit storage is reduced；
2, conversion factor α is reduced, the realization of thresholding clock control MCU processor can be used；
3, clock frequency f is reduced；
4, supply voltage V is reduced, but must also reduce clock frequency f simultaneously.Because thresholding can be made by reducing supply voltage
Delay increases, this just needs to reduce clock frequency.
The dynamic power management that wireless temperature-measuring terminal is realized by using above four kinds of methods, makes in wireless temperature-measuring terminal
MCU processor 102 and communication module 103 carry out dormant state, and the energy consumption of wireless temperature-measuring terminal is effectively reduced, and keep wireless temperature measurement whole
Hold carry out temperature measurement on-line work that can be long-term, stable.
Based on dynamic power management technology disclosed above, the wireless temperature-measuring terminal further include:
The wake-up module 105 being connected with the MCU processor 102, the wake-up letter for being sent according to the communication base station
Breath wakes up the MCU processor 102 and the communication module 103 of dormant state.
As shown in figure 4, for the structural schematic diagram of the wireless temperature-measuring terminal of wake-up module 105 is added.Wake-up module 105 is used for
MCU processor 102 and communication module 103 are waken up from energy saving dormant state, normal working condition is entered, is surveyed online
Temperature work.
Optionally, if the network address waken up in information comprising wireless temperature-measuring terminal to be waken up, the wake-up mould
Block 105 is also used to verify the network address of the wireless temperature-measuring terminal to be waken up and the network address of current wireless temperature-measuring terminal
It is whether identical, if they are the same, then wake up the MCU processor 102 and the communication module 103 of dormant state.
Optionally, the MCU processor 102 is also used to receive the wake-up that the wake-up module 105 is sent when being waken up
Information verifies the network address for waking up the wireless temperature-measuring terminal to be waken up in information and current wireless temperature-measuring terminal
Network address it is whether identical, if they are the same, then wake up the communication module 103 of dormant state.
It should be noted that when it is not using oneself as the wake-up signal of target that wireless temperature-measuring terminal, which receives, still by
Wake-up module 105, which wakes up, carries out data receiver, but received data are not the data that the wireless temperature-measuring terminal needs at this time, should
Data are invalid data, our wake-ups in this case are referred to as Lost wake-up, and this Lost wake-up will cause the wave of energy
Take.
The network address of Target Wireless temperature measurement terminal is added in the present invention in wake-up signal, is used to specify the object of wake-up,
To solve the problems, such as Lost wake-up.
Specifically, waking up MCU processor 102, but at this moment MCU processor 102 after wake-up mould connects block and receives wake-up information
Communication module 103 is not waken up at once, and wake-up module 105 continues to wake up information and is sent to MCU processor 102, only
MCU processor 102 verifies the network address of the wireless temperature-measuring terminal to be waken up in the wake-up information and current wireless
When the network address of temperature measurement terminal is identical, it just will continue to wake up communication module 103, energy caused by Lost wake-up avoided with this
Waste.
Optionally, the wake-up module 105 is also used to reach pre- in the character numerical value of the wake-up information that receives
If when numerical value, waking up the MCU processor 102 and the communication module 103 of dormant state.
It should be noted that since the signal interference in wireless communication channel is more than the signal interference in wired communication channel
Seriously, it when wake-up module 105 is when receiving the interference signal of noise similar with wake-up signal or other signal sources, can equally produce
Raw induced current, makes wake-up module 105 wake up MCU processor 102 and communication module 103, but there is no carry out data biography at this time
Defeated, the wake-up under our this conditions is referred to as false wake-up, and this false wake-up equally will cause energy dissipation.
The present invention is that wake-up module 105 increases wake-up signal tally function to solve the problems, such as false wake-up.Wake-up module 105
Only when receiving the character numerical value for the wake-up information for reaching default value, the MCU processor 102 of dormant state can be just waken up
With communication module 103, the energy dissipation as caused by false wake-up is avoided.
Optionally, the communication module 103, further includes:
Communication interface, for carrying out parameter configuration to the wireless temperature-measuring terminal.
Specifically, the communication interface can be used Serial Peripheral Interface (SPI) (Serial Peripheral Interface,
SPI the parameter configuration function of wireless temperature-measuring terminal) is realized.
Optionally, the communication module 103 can pass through wireless parties based on radio frequency (Radio Frequency, RF) module
The transmitting-receiving of formula progress data.
Optionally, the data which is sent or received by radio-frequency module, physical layer data packet include
Leading (Preamble), physical layer message head (PHDR), physical layer message head cyclic redundancy check, physical layer message packet
(PHYPayload) and physical layer message packet loop redundancy check.Physical layer data packet format is as follows:
| Preamble | PHDR | PHDR_CRC | PHYPayload | CRC |
MAC layer data packet is by partially parsing the physical layer message packet (PHYPayload) in physical layer data packet
It obtains.
Wherein, the format of physical layer message packet is as follows:
| MHDR | MACPayload | MIC |
Physical layer message packet includes MAC layer head (MHDR), MAC Message Payload (MACPayload) and 4 words of 1 byte
The MAC layer message integrity check code (MIC) of section.
Wherein, the format of MAC layer Message Payload is as follows:
| FHDR | FPort | FRMPayload |
Based on above-mentioned data format, after which will be sent to communication base station to data by radio-frequency module,
Base station equipment first parses physical layer data packet, then carries out the parsing of MAC layer data packet again.
Wherein, physical layer data Packet analyzing are as follows: cyclic redundancy check is carried out to physical layer data packet
Whether complete (CyclicRedundancy Check, CRC), verify the physical layer data packet received.If physical layer data
It wraps imperfect, then abandons the physical layer data packet；If physical layer data packet is complete, to the physical layer in physical layer data packet
Message header carries out CRC check, if verification does not pass through, stops parsing work immediately, abandons the physical layer data packet；If school
It tests and passes through, then receive the physical layer data packet, to part physical layer message packet (PHYPayload) in the physical layer data packet
It is parsed, obtains MAC layer data packet.
MAC layer resolve packet are as follows: to completeness check code (the Maximal information of MAC layer data packet
Coefficient, MIC) it is verified, confirm whether the MAC layer data packet received is complete.If MAC layer data packet is endless
It is whole, then abandon the MAC layer data packet；If MAC layer data packet is complete, the MAC layer head of MAC layer data packet is verified,
It verifies its type of message and whether frame format is correct, if incorrect, stop parsing work immediately；If correct, connect
The data in the frame Load field of MAC layer data packet are received, and are handled.
It should be noted that after wireless temperature-measuring terminal receives the data that communication base station is sent based on radio-frequency module, to data
Resolving it is identical as above-mentioned resolving.
In conclusion the invention discloses a kind of wireless temperature-measuring terminal, including temperature sensor 101, for that will collect
Temperature data be sent to MCU processor 102；The MCU processor 102 being connected with the temperature sensor 101, for pair
The temperature data received is handled, and temperature data is sent to communication module 103 by treated；With the MCU
The connected communication module 103 of processor 102, for receiving treated the temperature data, and will described treated
Temperature data is sent to communication base station by low-power consumption wide area wireless network.The wireless temperature-measuring terminal uses low-power consumption wide-area wireless
Networks and Communications base station is communicated, and the middle wireless temperature-measuring terminal using ZigBee communication technology, is not required to compared with the prior art
Communication relay set is added, reduces equipment cost, and use low power dissipation design, carry out that can be long-term, stable is online
Thermometric work.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (9)
1. a kind of wireless temperature-measuring terminal characterized by comprising
Temperature sensor, for sending MCU processor for collected temperature data；
The MCU processor being connected with the temperature sensor, for handling the temperature data received, and
By treated, temperature data is sent to communication module；
The communication module being connected with the MCU processor, for receiving treated the temperature data, and by the place
Temperature data after reason is sent to communication base station by low-power consumption wide area wireless network LPWA.
2. wireless temperature-measuring terminal according to claim 1, which is characterized in that the wireless temperature-measuring terminal further include:
The power module being respectively connected with the temperature sensor, the MCU processor and the communication module, for being described
Temperature sensor, the MCU processor and communication module power supply.
3. wireless temperature-measuring terminal according to claim 1, which is characterized in that the MCU processor is also used to pass through reduction
Physical capacitors, conversion factor, the mode of clock frequency or supply voltage reduce the dynamic of the MCU processor and the communication module
State power makes the MCU processor and the communication module enter dormant state；The dynamic power is in wireless temperature-measuring terminal
Capacitor charge and discharge power.
4. wireless temperature-measuring terminal according to claim 1, which is characterized in that the wireless temperature-measuring terminal further include:
The wake-up module being connected with the MCU processor, the wake-up information for being sent according to the communication base station wake up suspend mode
The MCU processor and the communication module of state.
5. wireless temperature-measuring terminal according to claim 4, which is characterized in that if comprising to be waken up in the wake-up information
The network address of wireless temperature-measuring terminal, the wake-up module is with being also used to verify the network of the wireless temperature-measuring terminal to be waken up
Whether location identical as the network address of current wireless temperature-measuring terminal, if they are the same, then wake up dormant state the MCU processor and
The communication module.
6. wireless temperature-measuring terminal according to claim 4, which is characterized in that the wake-up module is also used to receiving
When the reaching default value of character numerical value for waking up information, wake up the MCU processor and the communication of dormant state
Module.
7. wireless temperature-measuring terminal according to claim 5, which is characterized in that the MCU processor is also used to be waken up
When receive the wake-up information that the wake-up module sends, verify the wireless temperature-measuring terminal to be waken up waken up in information
Network address it is whether identical as the network address of current wireless temperature-measuring terminal, if they are the same, then wake up the described logical of dormant state
Believe module.
8. wireless temperature-measuring terminal according to claim 1, which is characterized in that the wireless temperature-measuring terminal, using Star network
Network structure is connected with the communication base station, for passing through chirp spread spectrum CSS and hopped orthogonal frequency division multiplexing technology FH-OFDM
Realize that the low-power consumption wide area wireless network LPWA between the wireless temperature-measuring terminal and the communication base station is communicated, by the processing
Temperature data afterwards is sent to communication base station by low-power consumption wide area wireless network LPWA communication.
9. wireless temperature-measuring terminal according to claim 1, which is characterized in that the communication module, further includes:
Communication interface, for carrying out parameter configuration to the wireless temperature-measuring terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810399272.1A CN110411590A (en) | 2018-04-28 | 2018-04-28 | A kind of wireless temperature-measuring terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810399272.1A CN110411590A (en) | 2018-04-28 | 2018-04-28 | A kind of wireless temperature-measuring terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110411590A true CN110411590A (en) | 2019-11-05 |
Family
ID=68356985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810399272.1A Pending CN110411590A (en) | 2018-04-28 | 2018-04-28 | A kind of wireless temperature-measuring terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110411590A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393257A (en) * | 2011-08-16 | 2012-03-28 | 国网信息通信有限公司 | Wireless temperature sensor and power equipment temperature on-line monitoring system |
| KR101751786B1 (en) * | 2016-07-07 | 2017-06-28 | 이노넷 주식회사 | TERMINAL TEMPERATURE MONITORING SYSTEM and TERMINAL TEMPERATURE DETECTING DEVICE OF POWER FACILITY |
| CN106937242A (en) * | 2016-12-27 | 2017-07-07 | 四川雷克斯智慧科技股份有限公司 | A kind of scene of a fire entry control method based on Internet of Things |
| CN107290070A (en) * | 2017-08-04 | 2017-10-24 | 河北为信电子科技股份有限公司 | A kind of efficient wireless temperature measurement method of intelligent power saving formula and its device |
| CN107588801A (en) * | 2017-09-04 | 2018-01-16 | 安徽科盟电子科技有限公司 | A kind of long-range self-diagnosis system of electrical equipment fault |
| CN207164951U (en) * | 2017-12-04 | 2018-03-30 | 浙江巨感物联网科技有限公司 | Intelligent wireless interconnection type fire alarm system |
-
2018
- 2018-04-28 CN CN201810399272.1A patent/CN110411590A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393257A (en) * | 2011-08-16 | 2012-03-28 | 国网信息通信有限公司 | Wireless temperature sensor and power equipment temperature on-line monitoring system |
| KR101751786B1 (en) * | 2016-07-07 | 2017-06-28 | 이노넷 주식회사 | TERMINAL TEMPERATURE MONITORING SYSTEM and TERMINAL TEMPERATURE DETECTING DEVICE OF POWER FACILITY |
| CN106937242A (en) * | 2016-12-27 | 2017-07-07 | 四川雷克斯智慧科技股份有限公司 | A kind of scene of a fire entry control method based on Internet of Things |
| CN107290070A (en) * | 2017-08-04 | 2017-10-24 | 河北为信电子科技股份有限公司 | A kind of efficient wireless temperature measurement method of intelligent power saving formula and its device |
| CN107588801A (en) * | 2017-09-04 | 2018-01-16 | 安徽科盟电子科技有限公司 | A kind of long-range self-diagnosis system of electrical equipment fault |
| CN207164951U (en) * | 2017-12-04 | 2018-03-30 | 浙江巨感物联网科技有限公司 | Intelligent wireless interconnection type fire alarm system |
Non-Patent Citations (1)
| Title |
|---|
| 宫诗寻: "5G大规模机器类通信中的传输技术", 《中兴通讯技术》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Sahota et al. | An energy-efficient wireless sensor network for precision agriculture | |
| Sarang et al. | A QoS MAC protocol for prioritized data in energy harvesting wireless sensor networks | |
| EP2742612A1 (en) | Systems, methods, and apparatus for a short beacon in low rate wi-fi communications | |
| Harris III et al. | Idle-time energy savings through wake-up modes in underwater acoustic networks | |
| Sarang et al. | Multi-priority based QoS MAC protocol for wireless sensor networks | |
| Oller et al. | IEEE 802.11‐enabled wake‐up radio system: design and performance evaluation | |
| Wang et al. | Energy-efficient medium access approach for wireless body area network based on body posture | |
| Kobayashi et al. | Wireless full-duplex medium access control for enhancing energy efficiency | |
| Al Ameen et al. | Design and analysis of a MAC protocol for wireless body area network using wakeup radio | |
| CN105119726A (en) | Wireless sensor network node rapid awakening method and apparatus thereof | |
| CN114503681B (en) | Method and device for sending indication information | |
| Ram et al. | Analytical energy consumption model for MAC protocols in wireless sensor networks | |
| CN110411590A (en) | A kind of wireless temperature-measuring terminal | |
| Sharma et al. | Low power communication in wireless sensor networks and IoT | |
| van Kleunen et al. | Proteus II: Design and evaluation of an integrated power-efficient underwater sensor node | |
| Marinkovic et al. | Power efficient networking using a novel wake-up radio | |
| Mikhaylov et al. | Wake-up radio enabled BLE wearables: Empirical and analytical evaluation of energy efficiency | |
| CN110418302A (en) | A kind of wireless temperature measurement system | |
| Erazo et al. | SEA-MAC: A simple energy aware MAC protocol for wireless sensor networks for environmental monitoring applications | |
| Lim et al. | An ultra low power medium access control protocol with the divided preamble sampling | |
| CN109788534A (en) | Communication means and communication device, access point apparatus and site apparatus | |
| Wu et al. | Wireless sensor network based solution for nuclear radiation detection | |
| Prasetyo et al. | A novel multiple access communication protocol for LoRa networks without LoraWAN | |
| Phang et al. | Time-division multiple access based intra-body communication for wearable health tracker | |
| Ullah et al. | Evaluation of implant communication with polarisation and unslotted csma/ca protocol in wireless body area networks |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191105 |
|
| RJ01 | Rejection of invention patent application after publication |