CN109632155A - Single-point type acquires device and method without uniaxial stress - Google Patents
Single-point type acquires device and method without uniaxial stress Download PDFInfo
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- CN109632155A CN109632155A CN201811553080.8A CN201811553080A CN109632155A CN 109632155 A CN109632155 A CN 109632155A CN 201811553080 A CN201811553080 A CN 201811553080A CN 109632155 A CN109632155 A CN 109632155A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000005284 excitation Effects 0.000 claims description 40
- 230000010355 oscillation Effects 0.000 claims description 14
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 abstract description 13
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 238000012544 monitoring process Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000035484 reaction time Effects 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 8
- 230000001413 cellular effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 230000002401 inhibitory effect Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/10—Measuring force or stress, in general by measuring variations of frequency of stressed vibrating elements, e.g. of stressed strings
-
- 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 present invention provides a kind of single-point types to acquire device and method without uniaxial stress, original Zigbee module monitoring scheme is substituted by NB-IoT module, it does not need to realize using coordinator-routing node-acquisition node scheme, without the concern for live occlusion issue, measurement module data are directly transferred directly to by telecommunication server using NB-IoT module, data forwarding is carried out by telecommunications, carries out the operation such as data parsing, storage in server end.Directly single-point strain gauge is carried out data transmission using NB-iot technology, effectively avoid existing such as RFID, Zigbee technology in use, signal decaying and shortage of data problem caused by various blocking interference, guarantee the real-time Transmission of monitoring data, technical staff is reduced to the reaction time of emergency situations, security risk is found as early as possible, is guaranteed safe production.Fielded system framework is succinct simultaneously, is conducive to system maintenance, stability also obtains certain guarantee.The equipment has the characteristics that data transmission is stable, at low cost, easy to use.
Description
Technical field
The present invention relates to a kind of single-point types to acquire device and method without uniaxial stress.
Background technique
With the development of technology, the enlargement of building, complication trend are more and more obvious, since project amount is huge and builds
Rough formula production method all the time is built, causes construction site situation extremely complex, is monitored using wired mode, on the one hand
Route difficulty is laid at scene, is easily destroyed, and on the other hand, will affect construction using wired mode.Using traditional wireless mode
Carry out data transmission but there are data to block, interference the problems such as.It employs new technology and solves the transmission of construction site wirelessly transmitting data
Problem is to Construction control important in inhibiting.
Currently, most of wireless monitor scheme is using groups such as data acquisition node, relay node, coordinator nodes
At being difficult to installation and maintenance under the complex environment of construction site, together as shown in Figure 1, relay node and coordinator need continued power
When construction site exist it is a large amount of stop, signal decaying, data packetloss problem are always to perplex monitoring personnel, therefore use a kind of knot
The stress monitoring equipment that structure is simple, low in energy consumption, penetration capacity is strong becomes research staff, and there is an urgent need to capture.
Summary of the invention
The purpose of the present invention is to provide a kind of single-point types to acquire device and method without uniaxial stress, is able to solve relay node
Continued power is needed with coordinator, installation and maintenance is difficult under the complex environment of construction site, while construction site has a large amount of resistances
The problems such as gear, signal decaying, data packetloss.
To solve the above problems, the present invention, which provides a kind of single-point type, acquires equipment without uniaxial stress, comprising:
Port interface and Port excitation coil, the Port interface are connect with Port excitation coil；
Sequentially connected first amplifier, filter, comparator, MCU module, NB-IoT module and server；
1:2 switch, including contact C, A and B, first amplifier are connect with the contact A, the Port interface and institute
State contact C connection；
Second amplifier, the both ends of second amplifier are connect with the contact B and MCU module respectively.
Further, in above equipment, when the contact C and A is disconnected, and the contact C and B is closed, the MCU
Module output signal output after second amplifier amplification makes Port excitation coil starting of oscillation to Port excitation coil.
Further, in above equipment, when contact C and B are disconnected, and contact C and A are closed, the Port excitation of starting of oscillation
Coil generates induced voltage through exporting after the amplifier to the filter, and the filter filters out the Port excitation line
The first comparator is output to after noise in the input signal of circle, the first comparator will generate in Port excitation coil
Vibratory string signal be converted into square-wave signal, the MCU module, which samples to obtain, obtains frequency signal through processing after the square-wave signal,
The MCU obtains being uploaded to server by the NB-Iot module after frequency signal.
Further, in above equipment, the NB-IoT module is multiple.
Another side according to the present invention provides a kind of single-point type without uniaxial stress acquisition method, comprising:
Port interface is connect with Port excitation coil；
It is sequentially connected the first amplifier, filter, comparator, MCU module, NB-IoT module and server；
Prepare 1:2 switch, 1:2 switch includes contact C, A and B, and first amplifier is connect with the contact A, will
The Port interface is connect with the contact C；
The both ends of second amplifier are connect with the contact B and MCU module respectively.
Further, in the above-mentioned methods, the both ends of the second amplifier are connect with the contact B and MCU module respectively
Later, further includes:
The contact C and A are disconnected, and the contact C and B is closed, the MCU module output signal is by described the
Output makes the Port excitation coil starting of oscillation to the Port excitation coil after the amplification of two amplifiers.
Further, in the above-mentioned methods, after making the Port excitation coil starting of oscillation, further includes:
The contact C and B is disconnected, and the contact C and A is closed, the Port excitation coil of starting of oscillation generates induced electricity
Through exporting after the amplifier to the filter, the filter filters out in the input signal of the Port excitation coil pressure
Noise after be output to the first comparator, the first comparator converts the vibratory string signal generated in Port excitation coil
For square-wave signal, the MCU module, which samples to obtain, obtains frequency signal through processing after the square-wave signal, and the MCU obtains frequency
Server is uploaded to by the NB-Iot module after rate signal.
Further, in the above-mentioned methods, the first amplifier, filter, comparator, MCU module, NB-IoT are sequentially connected
In module and server, comprising:
Multiple NB-IoT modules are connect with the server respectively.
Compared with prior art, the present invention substitutes original Zigbee module monitoring scheme by NB-IoT module, does not need
It is realized using coordinator-routing node-acquisition node scheme, it is straight using NB-IoT module without the concern for live occlusion issue
It connects and measurement module data is transferred directly to telecommunication server, data forwarding is carried out by telecommunications, carry out data in server end
The operations such as parsing, storage.Directly single-point strain gauge is carried out data transmission using NB-iot technology, effectively avoid it is existing such as
In use, signal decaying and shortage of data problem caused by various blocking interference guarantee the technologies such as RFID, Zigbee
The real-time Transmission of monitoring data reduces technical staff to the reaction time of emergency situations, finds security risk as early as possible, ensure safety
Production.Fielded system framework is succinct simultaneously, is conducive to system maintenance, stability also obtains certain guarantee.The equipment has number
According to the features such as stable, at low cost, easy to use is transmitted, have a good application prospect.
Detailed description of the invention
Fig. 1 is the structure chart of existing wireless monitor scheme；
Fig. 2 is the single-point type of one embodiment of the invention without the structure chart of uniaxial stress acquisition equipment；
Fig. 3 is the connection structure diagram of multiple NB-IoT modules of one embodiment of the invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in Fig. 2, the present invention, which provides a kind of single-point type, acquires equipment without uniaxial stress, comprising:
Vibrating wire sensor, the vibrating wire sensor are connect with Port interface, and Port interface is connect with Port excitation coil；
Sequentially connected first amplifier, filter, comparator, MCU module, NB-IoT module and server；
1:2 switch, including contact C, A and B, first amplifier are connect with the contact A, the Port interface and institute
State contact C connection；
Second amplifier, the both ends of second amplifier are connect with the contact B and MCU module respectively.
Here, narrowband Internet of Things (Narrow Band Internet of Things, NB-IoT) becomes all things on earth internet
One important branch of network.NB-IoT is implemented in cellular network, only consumes the bandwidth of about 180KHz, can be deployed directly into GSM
Network, UMTS network or LTE network, to reduce lower deployment cost, realize smooth upgrade.
Here, NB-IoT is the emerging technology in one, the field IoT, low power consuming devices is supported to connect in the cellular data of wide area network
It connects, also referred to as low-power consumption wide area network (LPWAN).NB-IoT supports stand-by time length, to network connectivity requirements higher device
Efficiently connection.It is said that the NB-IoT device battery service life can be improved at least 10 years, while can also provide very comprehensive interior
Cellular data connection covering.
NB-IoT has four characteristics: first is that wide covering, it will thus provide improved in-door covering, under same frequency range, and NB-
IoT is equivalent to than existing network gain 20dB and improves the ability of 100 times of overlay areas；Second is that having support magnanimity connection
Ability, mono- sector NB-IoT can support 100,000 connections, support low latency sensitivity, ultralow equipment cost, low set
The network architecture of standby power consumption and optimization；Third is that more low-power consumption, the stand-by time of NB-IoT terminal module is 10 years；Fourth is that more
Low module cost, single successive module expected from enterprise are no more than 5 dollars.
The present invention substitutes original Zigbee module monitoring scheme by NB-IoT module, does not need using coordinator-routing
Node-acquisition node scheme is realized, without the concern for live occlusion issue, using NB-IoT module directly by measurement module data
It is transferred directly to telecommunication server, data forwarding is carried out by telecommunications, carries out the operation such as data parsing, storage in server end.
Directly single-point strain gauge is carried out data transmission using NB-iot technology, effectively avoids existing such as RFID, Zigbee skill
In use, signal decaying and shortage of data problem caused by various blocking interference guarantee the real-time of monitoring data to art
Transmission reduces technical staff to the reaction time of emergency situations, finds security risk as early as possible, guarantee safe production.Scene simultaneously
System architecture is succinct, is conducive to system maintenance, and stability also obtains certain guarantee.The equipment have data transmission stablize, at
The features such as this is low, easy to use, has a good application prospect.
Single-point type of the invention is without in uniaxial stress acquisition one embodiment of equipment, when the contact C and A are disconnected, and the touching
When point C and B is closed, MCU module output signal output after second amplifier amplification makes to Port excitation coil
Port excitation coil starting of oscillation.
Single-point type of the invention is without in uniaxial stress acquisition one embodiment of equipment, and when contact C and B disconnection, and contact C and A are closed
When conjunction, the Port excitation coil of starting of oscillation generates induced voltage through exporting after the amplifier to the filter, the filtering
Device is output to the first comparator, the first comparator after filtering out the noise in the input signal of the Port excitation coil
Square-wave signal is converted by the vibratory string signal generated in Port excitation coil, the MCU module samples to obtain the square-wave signal
Frequency signal is obtained by processing, and the MCU obtains being uploaded to server by the NB-Iot module after frequency signal.
As shown in figure 3, single-point type of the invention is without in uniaxial stress acquisition one embodiment of equipment, the NB-IoT module is more
It is a, acquisition while to realize multiple nodes.
Single-point type of the invention is without in uniaxial stress acquisition one embodiment of equipment, and the vibrating wire sensor is three, three vibrations
Chord sensor is acquired work in three kinds of different frequency sections respectively.
Here, domestic many manufacturers all have production vibrating string type strain with the continuous development of domestic technology of Internet of things
The ability of meter, but since production technology, calibrating parameters are different, cause its product frequency optimum traffic section to have differences, and show
There is the acquisition equipment overwhelming majority or using particular acquisition frequency, not in optimal acquisition state for many products, from
And then there are error conditions in monitoring process.
The present invention is using adjustable mechanism, so that acquisition module is in optimum Working in face of various sensors.Example
Such as existing vibrating string type sensor A/B/C, optimal acquisition frequency separation is a1-a2/b1-b2/c1-c2, and traditional equipment is to ABC tri-
Kind of sensor is acquired using same frequency acquisition, and equipment of the invention can flexible modulation so that A/B/C sensor is distinguished
Collecting work is completed in tri- kinds of different frequency sections of a1-a2/b1-b2/c1-c2.Realize that acquisition equipment can be according to manufacturer's difference
Optimal acquisition frequency is automatically adjusted, acquisition data are more accurate reliable.
Another side according to the present invention provides a kind of single-point type without uniaxial stress acquisition method, comprising:
Port interface is connect with Port excitation coil；
It is sequentially connected the first amplifier, filter, comparator, MCU module, NB-IoT module and server；
Prepare 1:2 switch, 1:2 switch includes contact C, A and B, and first amplifier is connect with the contact A, will
The Port interface is connect with the contact C；
The both ends of second amplifier are connect with the contact B and MCU module respectively.
Further, in the above-mentioned methods, the both ends of the second amplifier are connect with the contact B and MCU module respectively
Later, further includes:
The contact C and A are disconnected, and the contact C and B is closed, the MCU module output signal is by described the
Output makes the Port excitation coil starting of oscillation to the Port excitation coil after the amplification of two amplifiers.
Further, in the above-mentioned methods, after making the Port excitation coil starting of oscillation, further includes:
The contact C and B is disconnected, and the contact C and A is closed, the Port excitation coil of starting of oscillation generates induced electricity
Through exporting after the amplifier to the filter, the filter filters out in the input signal of the Port excitation coil pressure
Noise after be output to the first comparator, the first comparator converts the vibratory string signal generated in Port excitation coil
For square-wave signal, the MCU module, which samples to obtain, obtains frequency signal through processing after the square-wave signal, and the MCU obtains frequency
Server is uploaded to by the NB-Iot module after rate signal.
Further, in the above-mentioned methods, the first amplifier, filter, comparator, MCU module, NB-IoT are sequentially connected
In module and server, comprising:
Multiple NB-IoT modules are connect with the server respectively.
The detailed content of each system embodiment of the invention, for details, reference can be made to the corresponding parts of each method embodiment, here,
It repeats no more.
Compared with prior art, the present invention substitutes original Zigbee module monitoring scheme by NB-IoT module, does not need
It is realized using coordinator-routing node-acquisition node scheme, it is straight using NB-IoT module without the concern for live occlusion issue
It connects and measurement module data is transferred directly to telecommunication server, data forwarding is carried out by telecommunications, carry out data in server end
The operations such as parsing, storage.Directly single-point strain gauge is carried out data transmission using NB-iot technology, effectively avoid it is existing such as
In use, signal decaying and shortage of data problem caused by various blocking interference guarantee the technologies such as RFID, Zigbee
The real-time Transmission of monitoring data reduces technical staff to the reaction time of emergency situations, finds security risk as early as possible, ensure safety
Production.Fielded system framework is succinct simultaneously, is conducive to system maintenance, stability also obtains certain guarantee.The equipment has number
According to the features such as stable, at low cost, easy to use is transmitted, have a good application prospect.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from spirit of the invention to invention
And range.If in this way, these modifications and changes of the present invention belong to the claims in the present invention and its equivalent technologies range it
Interior, then the invention is also intended to include including these modification and variations.
Claims (8)
1. a kind of single-point type acquires equipment without uniaxial stress characterized by comprising
Port interface and Port excitation coil, the Port interface are connect with Port excitation coil；
Sequentially connected first amplifier, filter, comparator, MCU module, NB-IoT module and server；
1:2 switch, including contact C, A and B, first amplifier are connect with the contact A, the Port interface and the touching
Point C connection；
Second amplifier, the both ends of second amplifier are connect with the contact B and MCU module respectively.
2. single-point type as described in claim 1 acquires equipment without uniaxial stress, which is characterized in that when the contact C and A are disconnected,
And when the contact C and B closure, MCU module output signal output after second amplifier amplification is sharp to Port
Coil is encouraged, Port excitation coil starting of oscillation is made.
3. single-point type as claimed in claim 2 acquires equipment without uniaxial stress, which is characterized in that when contact C and B disconnection, and touch
When point C and A is closed, the Port excitation coil of starting of oscillation generates induced voltage and is exported later through the amplifier to the filter,
The filter, which filters out, is output to the first comparator after the noise in the input signal of the Port excitation coil, and described
The vibratory string signal generated in Port excitation coil is converted square-wave signal by one comparator, and the MCU module samples to obtain described
Frequency signal is obtained through processing after square-wave signal, and the MCU obtains being uploaded to clothes by the NB-Iot module after frequency signal
Business device.
4. single-point type as described in claim 1 acquires equipment without uniaxial stress, which is characterized in that the NB-IoT module is more
It is a.
5. a kind of single-point type is without uniaxial stress acquisition method characterized by comprising
Port interface is connect with Port excitation coil；
It is sequentially connected the first amplifier, filter, comparator, MCU module, NB-IoT module and server；
Prepare 1:2 switch, 1:2 switch includes contact C, A and B, and first amplifier is connect with the contact A, will be described
Port interface is connect with the contact C；
The both ends of second amplifier are connect with the contact B and MCU module respectively.
6. single-point type as claimed in claim 5 is without uniaxial stress acquisition method, which is characterized in that by the both ends of the second amplifier point
After not connect with the contact B and MCU module, further includes:
The contact C and A is disconnected, and the contact C and B is closed, the MCU module output signal is put by described second
Output makes the Port excitation coil starting of oscillation to the Port excitation coil after big device amplification.
7. single-point type as claimed in claim 6 is without uniaxial stress acquisition method, which is characterized in that enclose the Port excitation line
After vibration, further includes:
The contact C and B is disconnected, and the contact C and A is closed, the Port excitation coil of starting of oscillation generates induced voltage warp
It exports after the amplifier to the filter, the filter filters out making an uproar in the input signal of the Port excitation coil
The first comparator, the vibratory string signal side of being converted into that the first comparator will generate in Port excitation coil are output to after sound
Wave signal, the MCU module, which samples to obtain, obtains frequency signal through processing after the square-wave signal, and the MCU obtains frequency letter
Server is uploaded to by the NB-Iot module after number.
8. single-point type as claimed in claim 5 is without uniaxial stress acquisition method, which is characterized in that be sequentially connected the first amplifier,
In filter, comparator, MCU module, NB-IoT module and server, comprising:
Multiple NB-IoT modules are connect with the server respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811553080.8A CN109632155A (en) | 2018-12-19 | 2018-12-19 | Single-point type acquires device and method without uniaxial stress |
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| CN201811553080.8A CN109632155A (en) | 2018-12-19 | 2018-12-19 | Single-point type acquires device and method without uniaxial stress |
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