CN109976142A - A kind of sensor shared system - Google Patents
A kind of sensor shared system Download PDFInfo
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- CN109976142A CN109976142A CN201910379138.XA CN201910379138A CN109976142A CN 109976142 A CN109976142 A CN 109976142A CN 201910379138 A CN201910379138 A CN 201910379138A CN 109976142 A CN109976142 A CN 109976142A
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- 238000005070 sampling Methods 0.000 claims abstract description 17
- 238000004088 simulation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012428 routine sampling Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
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Abstract
The embodiment of the invention provides a kind of sensor shared systems, including multiple equipment and at least one shared sensor.Wherein, the equipment includes at least a signal sampling and executive device.Each shared sensor is connected with multiple equipment, for acquiring the physical quantity of the equipment output.As it can be seen that this programme reduces system bulk, weight and cost while in such a way that multiple equipment shares at least one shared sensor, capable of reducing sensor redundancy.
Description
Technical field
The present invention relates to field of new energy technologies, and in particular to a kind of sensor shared system.
Background technique
In general, as shown in Figure 1, equipment be reduce coupled with the signal of other equipment, improve the freedom degree of application, inside
Comprising a set of independent sampling system, which includes signal acquisition and executive device and multiple sensors, by more
A sensor obtains physical quantity.
Inventors have found that the device structure based on Fig. 1, in each equipment, by sensor 11 to sensor 1k to physics
Amount 1 to physical quantity k is sampled, i.e. the sampling of same physical quantitiess only used a sensor, still, from system level
It sees, multiple sensors has been used to the acquisition of same physical quantitiess, have resulted in sensor redundancy.
The cost that the redundancy of sensor will lead to system to a certain degree is larger, particularly with some pairs of sensors limitation compared with
More occasions, this influence can be bigger.Such as it under photovoltaic solid-state transformer application, will be installed in large-scale power station more
Platform equipment, and each equipment requires to sample medium voltage network voltage.In general, usual to the sampling of medium voltage network voltage
Using PT sensor, the volume of the PT sensor is larger, at high cost.Except this, since sampling end voltage is higher, need to sense in PT
Biggish insulation spacing is reserved around device.
Therefore, how a kind of sensor shared system is provided, reduced while capable of reducing sensor redundancy system bulk,
Weight and cost are those skilled in the art's big technical problems urgently to be resolved.
Summary of the invention
In view of this, the same of sensor redundancy can be reduced the embodiment of the invention provides a kind of sensor shared system
When reduce system bulk, weight and cost.
To achieve the above object, the embodiment of the present invention provides the following technical solutions:
A kind of sensor shared system, including multiple equipment and at least one shared sensor,
The equipment includes at least a signal sampling and executive device；
Each shared sensor is connected with multiple equipment, for physical quantity needed for acquiring the equipment.
Optionally, physical quantity needed for the equipment is analog quantity, correspondingly, the output signal of the shared sensor is
Digital signal or analog signal.
Optionally, the equipment further include:
Preprocessed data receives resolver, is connected with the signal acquisition and executive device, for adopting to the signal
The output signal of collection and executive device is pre-processed, and echo signal is generated.
Optionally, further includes:
Signal acquisition, pretreatment and retransmission unit are connected with the public connecting end of multiple equipment, for the mesh
Mark signal is handled, and signal is sent to the shared sensor by treated.
Optionally, the shared sensor is PT sensor.
Optionally, the equipment is photovoltaic solid-state transformer.
Optionally, the signal acquisition, pretreatment and retransmission unit include: microcontroller, sampling unit and transmission mould
Block；
The echo signal for the public connecting end that the signal acquisition module is used to sample needed for acquiring the equipment；
The microcontroller is for handling the echo signal；
The sending module is for by treated, signal to be sent to the shared sensor.
Based on the above-mentioned technical proposal, the embodiment of the invention provides a kind of sensor shared system, including multiple equipment with
And at least one shared sensor.Wherein, each equipment includes at least a signal sampling and executive device.It is each described
Shared sensor is connected with multiple equipment, for acquiring the physical quantity of the equipment output.As it can be seen that this programme is by multiple
The mode of at least one shared sensor of collaborative share, reduced while capable of reducing sensor redundancy system bulk, weight and
Cost.
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 the structural schematic diagram of equipment in the prior art；
Fig. 2 is a kind of structural schematic diagram of sensor shared system provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another sensor shared system provided in an embodiment of the present invention；
Fig. 4 is a kind of application signal of the sensor shared system provided in an embodiment of the present invention in photovoltaic solid-state transformer
Figure；
Fig. 5 is that application of another the sensor shared system provided in an embodiment of the present invention in photovoltaic solid-state transformer is shown
It is intended to.
Specific embodiment
Referring to Fig. 2, Fig. 2 is a kind of structural schematic diagram of sensor shared system provided in this embodiment, the sensor
Shared system, including multiple equipment 21 and at least one shared sensor 22.
Wherein, each equipment includes at least a signal sampling and executive device.Each shared sensor with
Multiple equipment are connected, for physical quantity needed for acquiring the equipment.
In the present embodiment, physical quantity needed for equipment is analog quantity, correspondingly, the output signal of the shared sensor
For digital signal or analog signal.
It should be noted that in the present embodiment, equipment and shared sensor can be one-to-one relationship, can be with
It is that multiple equipment shares the same shared sensor, can also be that an equipment carries out physical quantity by multiple shared sensors and adopts
Collection, depending on actual conditions.
As it can be seen that in such a way that multiple equipment shares at least one shared sensor, it is superfluous can to reduce sensor for this programme
System bulk, weight and cost are reduced while remaining.
On the basis of the above embodiments, as shown in figure 3, the present embodiment additionally provides a kind of sensor shared system,
In, the equipment further include: preprocessed data receives resolver 31.
The preprocessed data receives resolver 11 and is connected with the signal acquisition and executive device 21, for the letter
Number acquisition and the output signal of executive device are pre-processed, and echo signal is generated.
Except this, the sensor shared system, further includes: signal acquisition, pretreatment and retransmission unit 32.The signal acquisition,
Pretreatment and retransmission unit 32 are connected with the public connecting end of multiple equipment, for handling the echo signal,
And signal is sent to the shared sensor by treated.
It should be noted that the difference of the present embodiment and above-described embodiment is, shared sensor in above-described embodiment
Information is directly obtained by multiple demand equipment, and needs to receive resolver in the present embodiment by preprocessed data to sensor
After signal is pre-processed, then it is forwarded to demand equipment.
Schematically, in sensor shared system, shared sensor is PT sensor, equipment is photovoltaic solid-state transformer
For, the working principle of sensor shared system provided by the invention is illustrated, as follows:
Since in middle-and-high voltage system, mesohigh network voltage acquisition of information is more difficult.Method common at present is all adopted
The alternating voltage of several kilovolts of even tens of thousands of volts is converted to the electricity of this order of magnitude of 100V by the first conversion that voltage is completed with PT
Pressure, then sampling processing is carried out to this by rear class routine sampling circuit.But PT is to reach the insulation realized under this voltage class, is needed
Biggish volume and weight, while to guarantee not adopt raw electric arc in use, and installation environment and periphery gap to PT
It is more demanding.Therefore the whole great volume of mesohigh metering section demand and weight.And photovoltaic solid-state transformer is being run
In must obtain the voltage signal of grid side again, be that a photovoltaic solid-state transformer configures a set of PT and uses according to traditional scheme
It is sampled in network voltage, then can be to the cost of photovoltaic solid-state transformer, volume, weight etc. causes strong influence, based on this point
Two kinds of system schemas of other design drawing 4 and Fig. 5.
As shown in figure 4, the output voltage of PT is fed directly to each photovoltaic solid-state transformer, each photovoltaic solid-state transformer is straight
It connects and carries out sampling and subsequent processing using the output signal of PT, which has scheme simple, and it is less to traditional scheme change, it adopts
The advantages that sample link extra latency is short.But because the output power of PT is relatively limited, signal is weaker, if more photovoltaic solid-state transformations
Device position farther out when, PT send the signal to solid-state transformer that will likely will receive interference, while connection over long distances is to PT's
Reliability service also results in risk, therefore this programme is more advantageous when more photovoltaic solid-state transformers are centrally placed.
As shown in figure 5, the output voltage of PT is first sent to data sampling, in pretreatment and lower transmitting apparatus, the device and PT are just
It is close to place, can guarantee the signal of PT in this way from interference, the power consumption requirements of PT are reduced at the same improve PT output line it is too long when
Risk.But because increasing these intermediate links, additional delay can be generated to systematic sampling, while needing in each light
It lies prostrate and increases corresponding communication reception resolution unit in solid-state transformer.
Specifically, the signal acquisition, pretreatment and retransmission unit in the present embodiment include: microcontroller in conjunction with Fig. 5
Device, sampling unit and sending module；
The echo signal for the public connecting end that the signal acquisition module is used to sample needed for acquiring the equipment；
The microcontroller is for handling the echo signal；
The sending module is for by treated, signal to be sent to the shared sensor.
As it can be seen that reducing the usage quantity of sensor from system level, and then reduce the cost of system, volume and weight.
Especially this system is applied to photovoltaic solid-state transformer occasion, and the usage quantity of PT, the power of lifting system can be greatly reduced
Density reduces system cost.In MW grades of photovoltaic solid-state transformer, by this shared system, single device cost can drop
Low 100,000 yuan or so.
To sum up, the embodiment of the invention provides a kind of sensor shared system, including multiple equipment and at least one is total
Enjoy sensor.Wherein, each equipment includes at least a signal sampling and executive device.Each shared sensor with
Multiple equipment are connected, for acquiring the physical quantity of the equipment output.As it can be seen that this programme is shared at least by multiple equipment
The mode of one shared sensor reduces system bulk, weight and cost while capable of reducing sensor redundancy.
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.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
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.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (7)
1. a kind of sensor shared system, which is characterized in that including multiple equipment and at least one shared sensor,
The equipment includes at least a signal sampling and executive device；
Each shared sensor is connected with multiple equipment, for physical quantity needed for acquiring the equipment.
2. sensor shared system according to claim 1, which is characterized in that physical quantity needed for the equipment is simulation
Amount, correspondingly, the output signal of the shared sensor is digital signal or analog signal.
3. sensor shared system according to claim 1, which is characterized in that the equipment further include:
Preprocessed data receives resolver, is connected with the signal acquisition and executive device, be used for the signal acquisition and
The output signal of executive device is pre-processed, and echo signal is generated.
4. sensor shared system according to claim 3, which is characterized in that further include:
Signal acquisition, pretreatment and retransmission unit are connected with the public connecting end of multiple equipment, for believing the target
It number is handled, and will treated that signal is sent to the shared sensor.
5. sensor shared system according to claim 1, which is characterized in that the shared sensor is PT sensor.
6. sensor shared system according to claim 1, which is characterized in that the equipment is photovoltaic solid-state transformer.
7. sensor shared system according to claim 4, which is characterized in that the signal acquisition, pretreatment and forwarding
Device includes: microcontroller, sampling unit and sending module；
The echo signal for the public connecting end that the signal acquisition module is used to sample needed for acquiring the equipment；
The microcontroller is for handling the echo signal；
The sending module is for by treated, signal to be sent to the shared sensor.
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| CN201910379138.XA CN109976142A (en) | 2019-05-08 | 2019-05-08 | A kind of sensor shared system |
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| CN201910379138.XA CN109976142A (en) | 2019-05-08 | 2019-05-08 | A kind of sensor shared system |
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2019
- 2019-05-08 CN CN201910379138.XA patent/CN109976142A/en active Pending
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| JP2008181319A (en) * | 2007-01-24 | 2008-08-07 | Access Co Ltd | Apparatus linkage operation system, linkage operation execution method, linkage-operable apparatus and pointing device |
| CN104727948A (en) * | 2013-12-18 | 2015-06-24 | 西门子能源公司 | Multi-functional sensor system for gas turbine combustion monitoring and control |
| CN203984080U (en) * | 2014-05-14 | 2014-12-03 | 广东电网公司东莞供电局 | Electrical network UPS gapless electric supply installation |
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Application publication date: 20190705 |
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