CN207472457U - Wireless remote transmission pressure sensor based on NB-IOT - Google Patents
Wireless remote transmission pressure sensor based on NB-IOT Download PDFInfo
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- CN207472457U CN207472457U CN201721416788.XU CN201721416788U CN207472457U CN 207472457 U CN207472457 U CN 207472457U CN 201721416788 U CN201721416788 U CN 201721416788U CN 207472457 U CN207472457 U CN 207472457U
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Abstract
The utility model discloses a kind of wireless remote transmission pressure sensors based on NB IOT, realize pressure signal acquisition, pressure data processing, pressure data scene is shown.The utility model includes pressure sensor body, Conditioning Circuits of Sensor, high precision analogue conversion circuit, low-power consumption MCU, ferroelectric memory, NB IOT modules, power circuit and display circuit；The output terminal connection Conditioning Circuits of Sensor of pressure sensor body, the output terminal connection high precision analogue conversion circuit of Conditioning Circuits of Sensor, the output terminal of high precision analogue conversion circuit is connected to low-power consumption MCU, the output terminal connection NB IOT modules and display circuit of low-power consumption MCU；The input terminal of the low-power consumption MCU is also associated with ferroelectric memory.
Description
Technical field
The utility model is related to a kind of wireless remote pressure sensors, and in particular to a kind of wireless remote transmission based on NB-IOT
Pressure sensor.
Background technology
Pressure sensor is widely applied to the fields such as oil, chemical industry, fire-fighting, water supply, heating.At present, pressure signal
Acquisition can be divided into mechanical pressure gauge and electronic pressure transmitter.Electronic pressure transmitter can be divided into again it is analog and digital, one
As analog pressure sensor can not realize that wireless remote transmission is long-range.It is generally passed in wireless remote transmission pressure regime using RS485 pressure
Sensor adds DTU modes or uses GPRS/GSM pressure sensors.
DTU modes is added to need field wiring when realizing wireless remote pressure data function using RS485 pressure sensors, two
It is unreliable that a component is susceptible to connection.It is big using GPRS/GSM pressure sensor power consumptions, it needs frequently with changing battery or showing
Lay power supply in field.Both modes are all using GPRS/GSM networks, live GPRS/GSM networks are covered more demanding.Underground
The places such as room and inspection shaft can not usually use.
Utility model content
The technical problem to be solved by the utility model is to the deficiencies in for the above-mentioned prior art, disclose a kind of base
In the wireless remote transmission pressure sensor of NB-IOT, pressure signal acquisition is realized, pressure data processing, pressure data scene is shown
Show.
Technical solution is used by the utility model solves its technical problem：Wireless remote transmission pressure based on NB-IOT passes
Sensor, including pressure sensor body, Conditioning Circuits of Sensor, high precision analogue conversion circuit, low-power consumption MCU, ferroelectricity storage
Device, NB-IOT modules, power circuit and display circuit；
The output terminal connection Conditioning Circuits of Sensor of pressure sensor body, the output terminal connection of Conditioning Circuits of Sensor are high
Precision analog to digital conversion circuit, the output terminal of high precision analogue conversion circuit are connected to low-power consumption MCU, the output terminal of low-power consumption MCU
Connect NB-IOT modules and display circuit；
The input terminal of the low-power consumption MCU is also associated with ferroelectric memory.
A kind of preferred embodiment as the utility model：The power circuit includes core power circuit, the core
Electrocardio source circuit is classified by analog power circuit and transmission power circuit and is improved to low-power consumption MCU, NB-IOT module, sensor
Circuit, pressure sensor and ferroelectric memory power supply.
A kind of preferred embodiment as the utility model：The NB-IOT modules are linked for BC95；The low-power consumption
MCU is stm32L053.
The utility model has the following advantages compared with prior art：
Wireless remote transmission pressure sensor based on NB-IOT disclosed in the utility model realizes pressure signal acquisition, pressure
Force data processing, pressure data scene show that pressure data uploads far-end server by NB-IOT networks.NB-IOT radio remotes
Pressure transmission force snesor power consumption is very low, and included lithium battery can be used to work long hours, and solves scene power supply and frequently replaces battery
The problem of.NB-IOT technologies solve the problems, such as the places such as basement and inspection shaft signal difference simultaneously.
In the utility model, pressure signal is converted to electric signal by pressure sensor.Conditioning Circuits of Sensor passes pressure
The voltage of sensor is improved into available voltage signal.Conditioned voltage is converted to digital letter by high-precision analog to digital conversion circuit
Number, it is transmitted to low-power consumption MCU.Data are issued display circuit and provide scene display by low-power consumption MCU.The MCU of low-power consumption believes number
Number public network is sent to by NB-IOT modules by relevant treatment, in the data storage to ferroelectric memory sent not successfully (under
It is secondary to reissue).Power circuit is powered using classification to MCU, NB-IOT module, modulate circuit, sensor and ferroelectric memory.Classification
The use of power supply, which effectively reduces caused power-supply fluctuation in radiating circuit transmission process, must influence Acquisition Circuit.
Description of the drawings
Fig. 1 is a kind of structural principle block diagram of specific embodiment of the utility model.
Specific embodiment
The utility model is described in detail in shown each embodiment below in conjunction with the accompanying drawings, but it should explanation,
These embodiments are not limitation of the utility model, and those of ordinary skill in the art are according to these embodiment institute works
Energy, method or equivalent transformation or replacement in structure, belong within the scope of protection of the utility model.
As shown in Figure 1, it illustrates specific embodiment of the utility model；As shown in the figure, base disclosed in the utility model
In the wireless remote transmission pressure sensor of NB-IOT, including pressure sensor body, Conditioning Circuits of Sensor, high precision analogue conversion
Circuit, low-power consumption MCU, ferroelectric memory, NB-IOT modules, power circuit and display circuit；
The output terminal connection Conditioning Circuits of Sensor of pressure sensor body, the output terminal connection of Conditioning Circuits of Sensor are high
Precision analog to digital conversion circuit, the output terminal of high precision analogue conversion circuit are connected to low-power consumption MCU, the output terminal of low-power consumption MCU
Connect NB-IOT modules and display circuit；
The input terminal of the low-power consumption MCU is also associated with ferroelectric memory.
Preferably, as shown in the figure：The power circuit includes core power circuit, and the core power circuit passes through simulation
Power circuit and send power circuit be classified to low-power consumption MCU, NB-IOT module, Conditioning Circuits of Sensor, pressure sensor and
Ferroelectric memory is powered.
Preferably, as shown in the figure：The NB-IOT modules are linked for BC95；The low-power consumption MCU is stm32L053.
To sum up, the utility model include pressure sensor body, Conditioning Circuits of Sensor, high precision analogue conversion circuit,
Low-power consumption MCU, ferroelectric memory, NB-IOT modules, power circuit.
Wherein, pressure signal is converted to electric signal by pressure sensor.Conditioning Circuits of Sensor is the electricity of pressure sensor
Pressure is improved into available voltage signal.Conditioned voltage is converted to digital signal by high-precision analog to digital conversion circuit, is transmitted to
Low-power consumption MCU.Data are issued display circuit and provide scene display by low-power consumption MCU.Digital signal is passed through phase by the MCU of low-power consumption
It closes processing and public network is sent to by NB-IOT modules, the data storage sent not successfully to (next time reissues) in ferroelectric memory.
Power circuit is powered using classification to MCU, NB-IOT module, modulate circuit, sensor and ferroelectric memory.Classification power supply can have
Effect ground reduces influence of the caused power-supply fluctuation to Acquisition Circuit in radiating circuit transmission process.
In the utility model, NB-IoT is extensively covered, it will thus provide improved in-door covering, under same frequency range, and NB-IoT
Than existing network gain 20dB, area coverage expands 100 times.Have the ability of support magnanimity connection, mono- sector of NB-IoT
It can support 100,000 connections, support low latency sensitivity, ultralow equipment cost, low equipment power dissipation and the network rack of optimization
Structure；Third, more low-power consumption, the stand-by time of NB-IoT terminal modules is 10 years.
The key problem in technology point of the utility model is：
1st, NB-IOT modules have been used, NB-IOT module dissipations are low, and signal is strong, effectively reduce the power consumption of transmission；
2nd, used the MCU of low-power consumption, low-power consumption MCU that there are a variety of low-power consumption modes, acquisition and sky can be greatly reduced
The power consumption of idle；
3rd, using ferroelectric memory as storage unit, ferroelectric memory is low in energy consumption to advantageously reduce power consumption：
4th, controllable power circuit is line related to be controlled to close by the I/O of MCU when correlation module does not work.
5th, using multistage power supply structure, Acquisition Circuit must be influenced by effectively reducing current fluctuation during data are sent out.
With existing Technical comparing, the utility model has the advantages that:
1st, the power consumption of transmission is effectively reduced using NB-IOT modules, data are sent completely module automatically into low-power consumption
Pattern；
2nd, signal sensitivity is significantly improved using NB-IOT modules, improves the use scope of equipment；
3rd, the use of low energy-consumption electronic device effectively reduces stand-by power consumption.
Multistage power supply structure, which refers under core power circuit to be added to again to have consolidated circuit and reduce data, to be transmitted across
Influence of the journey to Acquisition Circuit.
The a series of tool that the feasibility embodiment only for the utility model is described in detail of those listed above
Body illustrates, they are all to be made without departing from the utility model skill spirit not to limit the scope of protection of the utility model
Equivalent implementations or change should be included within the scope of protection of this utility model.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (3)
1. the wireless remote transmission pressure sensor based on NB-IOT, it is characterised in that：It is improved including pressure sensor body, sensor
Circuit, high precision analogue conversion circuit, low-power consumption MCU, ferroelectric memory, NB-IOT modules, power circuit and display circuit；
The output terminal connection Conditioning Circuits of Sensor of pressure sensor body, the output terminal connection high-precision of Conditioning Circuits of Sensor
Analog to digital conversion circuit, the output terminal of high precision analogue conversion circuit are connected to low-power consumption MCU, the output terminal connection of low-power consumption MCU
NB-IOT modules and display circuit；
The input terminal of the low-power consumption MCU is also associated with ferroelectric memory.
2. the wireless remote transmission pressure sensor based on NB-IOT as described in claim 1, it is characterised in that：The power circuit
Comprising core power circuit, the core power circuit is classified by analog power circuit and transmission power circuit to low-power consumption
MCU, NB-IOT module, Conditioning Circuits of Sensor, pressure sensor and ferroelectric memory power supply.
3. the wireless remote transmission pressure sensor based on NB-IOT as described in claim 1, it is characterised in that：The NB-IOT moulds
Block is linked for BC95；The low-power consumption MCU is stm32L053.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017209859128 | 2017-08-08 | ||
| CN201720985912 | 2017-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207472457U true CN207472457U (en) | 2018-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721416788.XU Active CN207472457U (en) | 2017-08-08 | 2017-10-30 | Wireless remote transmission pressure sensor based on NB-IOT |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109102689A (en) * | 2018-08-20 | 2018-12-28 | 中北大学 | Pressure sensor with WIFI interface |
-
2017
- 2017-10-30 CN CN201721416788.XU patent/CN207472457U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109102689A (en) * | 2018-08-20 | 2018-12-28 | 中北大学 | Pressure sensor with WIFI interface |
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