CN206479576U - A kind of intelligent high-accuracy voltage data collecting system - Google Patents
A kind of intelligent high-accuracy voltage data collecting system Download PDFInfo
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- CN206479576U CN206479576U CN201620988016.2U CN201620988016U CN206479576U CN 206479576 U CN206479576 U CN 206479576U CN 201620988016 U CN201620988016 U CN 201620988016U CN 206479576 U CN206479576 U CN 206479576U
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Abstract
The utility model provides a kind of intelligent high-accuracy voltage data collecting system and method, is related to data processing field, it is characterised in that the system includes：Voltage acquisition unit, pretreatment unit, transforming gear unit, AC/DC converting units, AD conversion unit, processor and display unit；The voltage acquisition unit signal is connected to pretreatment unit；Signal is connected to transforming gear unit and processor to the pretreatment unit respectively；Signal is connected to AC/DC converting units and AD conversion unit to the transforming gear unit respectively；The AC/DC converting units signal is connected to AD conversion unit；The AD conversion unit signal is connected to processor；The processor signal is connected to display unit.The utility model have the advantages that small volume, precision it is high, simple in construction, using with convenient reading, cost performance is high and accommodation is wide.
Description
Technical field
The utility model is related to data processing field, more particularly to a kind of intelligent high-accuracy voltage data collecting system.
Background technology
One of voltage is electronics with measurement element most basic in power system, and rapidly and accurately obtaining magnitude of voltage is always
One of important content that data acquisition is studied with electronic measuring instrument.Traditional needle dc voltmeter have precision it is low, can sighting distance
The defect such as single near, function, has been not suitable with the development need of high speed information.
Widely used digital voltmeter intelligence degree is low in the market, and manual switching range is needed during measurement voltage,
When measurement range selection did not occurred that measurement accuracy declined or even burnt out the extreme case of voltmeter at that time；And high-precision gamut
Typically all employ the complicated circuit systems such as DSP, FPGA or CPLD without shelves digital voltmeter, hardware and software cost of implementation compared with
It is high.
Utility model content
In consideration of it, the utility model provides a kind of intelligent high-accuracy voltage data collecting system, the utility model tool
Have the advantages that small volume, precision it is high, simple in construction, using with convenient reading, cost performance is high and accommodation is wide.
The technical solution adopted in the utility model is as follows：
A kind of intelligent high-accuracy voltage data collecting system, it is characterised in that the system includes：Voltage acquisition list
Member, pretreatment unit, transforming gear unit, AC/DC converting units, AD conversion unit, processor and display unit；The electricity
Pressure collecting unit signal is connected to pretreatment unit, for gathering raw voltage data, and the raw voltage data collected is sent out
Deliver to pretreatment unit；Signal is connected to transforming gear unit and processor to the pretreatment unit respectively, for according to processing
The control command that device is sended over is carried out to the raw voltage data received at attenuation processing, range swithching processing and amplification
Reason；Signal is connected to AC/DC converting units and AD conversion unit to the transforming gear unit respectively, for the electricity according to collection
Pressure is the route that DC voltage or alternating voltage change voltage transmission；The AC/DC converting units signal is connected to modulus and turned
Unit is changed, for alternating current to be converted into direct current；The AD conversion unit converting unit signal is connected to processor, is used for
The raw voltage data information of the simulation received is converted into data signal；The processor signal is connected to display unit,
For being sampled, being filtered and error correction to the data signal received, the result of processing is sent to display unit and carried out
Display.
The pretreatment unit includes：Attenuator, quantum conversion module and amplification module；The attenuator signal is connected to
Quantum conversion module, for the value range for extremely setting the too high voltage attenuation of magnitude of voltage；The quantum conversion module, for root
The control command control relay sended over according to processor carries out corresponding adjustment to attenuator or amplification module, selects
Optimal range；The amplification module, for the too low voltage amplification of magnitude of voltage to the value range set.
The processor includes：Sampling module, filtration module and error correction module；The sampling module signal is connected to
Filtration module, for being sampled to the voltage signal received；The filtration module is communicated to connect with error correction module, is used
Sampled in the voltage signal to receiving；The error correction module by signal is connected to display unit, for receiving
Voltage signal carry out error correction, the result after correction is sent to display unit and shown.
The transforming gear unit includes：Identification module and switch module；The identification module signal is connected to switching molding
Block, for the voltage data received to be identified, it is DC voltage or alternating current voltage to judge it；The switching molding
Signal is connected to AC/DC converting units and AD conversion unit to block respectively, for the recognition result according to identification module, and judging should
Which bar circuit of the connection.
Using above technical scheme, the utility model generates following beneficial effect：
1st, small volume, cost are low：The utility model is simple in construction, is gathered compared to using FPGA or DSP voltage data
System, processor of the present utility model can use single-chip microcomputer, and cost is greatly lowered.
2nd, it is simple in construction：Of the present utility model simple in construction, each several part annexation is readily appreciated that, and easily industrial production
Manufacture, further reduces manufacturing cost.
3rd, alternating current voltage and DC voltage can be gathered simultaneously：The utility model can gather alternating current simultaneously and straight
The voltage data of electricity is flowed, and system can be switched over automatically according to actual conditions, automaticity is high.
Brief description of the drawings
Fig. 1 is a kind of system structure diagram of intelligent high-accuracy voltage data collecting system of the present utility model.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
This specification（Including any accessory claim, summary）Disclosed in any feature, unless specifically stated otherwise,
Replaced by other equivalent or with similar purpose alternative features.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalent or similar characteristics.
A kind of intelligent high-accuracy voltage data collecting system is provided in the utility model embodiment 1, system architecture is such as
Shown in Fig. 1：
A kind of intelligent high-accuracy voltage data collecting system, it is characterised in that the system includes：Voltage acquisition list
Member, pretreatment unit, transforming gear unit, AC/DC converting units, AD conversion unit, processor and display unit；The electricity
Pressure collecting unit signal is connected to pretreatment unit, for gathering raw voltage data, and the raw voltage data collected is sent out
Deliver to pretreatment unit；Signal is connected to transforming gear unit and processor to the pretreatment unit respectively, for according to processing
The control command that device is sended over is carried out to the raw voltage data received at attenuation processing, range swithching processing and amplification
Reason；Signal is connected to AC/DC converting units and AD conversion unit to the transforming gear unit respectively, for the electricity according to collection
Pressure is the route that DC voltage or alternating voltage change voltage transmission；The AC/DC converting units signal is connected to modulus and turned
Unit is changed, for alternating current to be converted into direct current；The AD conversion unit signal is connected to processor, for that will receive
The raw voltage data information of simulation be converted to data signal；The processor signal is connected to display unit, for docking
The data signal received is sampled, filtered and error correction, and the result of processing is sent to display unit and shown.
The pretreatment unit includes：Attenuator, quantum conversion module and amplification module；The attenuator signal is connected to
Quantum conversion module, for the value range for extremely setting the too high voltage attenuation of magnitude of voltage；The quantum conversion module, for root
The control command control relay sended over according to processor carries out corresponding adjustment to attenuator or amplification module, selects
Optimal range；The amplification module, for the too low voltage amplification of magnitude of voltage to the value range set.
The processor includes：Sampling module, filtration module and error correction module；The sampling module signal is connected to
Filtration module, for being sampled to the voltage signal received；The filtration module is communicated to connect with error correction module, is used
Sampled in the voltage signal to receiving；The error correction module by signal is connected to display unit, for receiving
Voltage signal carry out error correction, the result after correction is sent to display unit and shown.
The transforming gear unit includes：Identification module and switch module；The identification module signal is connected to switching molding
Block, for the voltage data received to be identified, it is DC voltage or alternating current voltage to judge it；The switching molding
Signal is connected to AC/DC converting units and AD conversion unit to block respectively, for the recognition result according to identification module, and judging should
Which bar circuit of the connection.
A kind of intelligent high-accuracy voltage collecting method is provided in the utility model embodiment 2：
A kind of intelligent high-accuracy voltage collecting method, it is characterised in that the described method comprises the following steps：
Step 1：System initialization, processor setting highest range, voltage acquisition unit starts to gather raw voltage data；
Step 2：Pretreatment unit is decayed and enhanced processing to the raw voltage data collected, by the electricity after processing
Pressure data send gear converting unit extremely；
Step 3：Gear converting unit judges that the voltage data that receives is DC voltage or alternating current voltage, if
DC voltage then performs step 5；If alternating current voltage, then step 4 is performed；
Step 4：Alternating current is converted to direct current by AC/DC converting units, and the voltage data after turning is sent to A/D and changed
Unit；
Step 5：The analog voltage data received are converted to digital voltage data by A/D converting units, after conversion
Voltage data is sent to processor；
Step 6：Processor judges whether the range of the voltage data received exceedes the threshold value A of setting；If not above if
Perform step 7；If exceeding, highest range is determined whether, if highest range, then carry out overload processing；If not
Highest range, then be switched to highest range, re-execute step 5；
Step 7：Processor judges whether the range of the voltage data received exceedes the threshold value B of setting；Enter if more than if
Row scales transforming, performs step 8；If being not above, minimum beam great achievement is determined whether, if minimum range, then carry out
Scales transforming performs step 8；If not minimum range, then one grade of range is dropped, step 5 is re-executed；
Step 8：Processor is sampled to the voltage data received, filtered and error correction processing, after processing
As a result send to display unit and shown.
The method that the processor is filtered to the voltage data received comprises the following steps：
Step 1：Processor presets the maximum deviation threshold value that a neighbouring sample allows： QUOTE ；
Step 2：Carry out to judge as follows when detecting new voltage data every time：If the new voltage number received
It is less than or equal to DT according to the absolute value of the previous voltage data received, then this sampled value is effective；It is opposite then abandon receive
The new voltage data arrived, takes previous voltage data to replace new voltage data.
The method that the processor carries out error correction to the voltage data received comprises the following steps：
Step 1：Set voltage sample data as： QUOTE , wherein QUOTE ；
Wherein QUOTE For the magnitude of voltage after scale conversion；The QUOTE For actual voltage value；Adopt
Coefficient QUOTE is obtained with equation below And QUOTE ；
QUOTE ；
QUOTE ；
Step 2：By each correction point data（Xi, Yi）Substitute into upper two formula and obtain coefficient a, b value, and deposit the interior of people's processor
In memory cell；In formal measurement, corrected value Y is obtained according to measured value and error correction equations Y=aX+b, so as to eliminate system
Error.
A kind of intelligent high-accuracy voltage data collecting system, system construction drawing are provided in the utility model embodiment 3
As shown in Figure 1：
A kind of intelligent high-accuracy voltage data collecting system, it is characterised in that the system includes：Voltage acquisition list
Member, pretreatment unit, transforming gear unit, AC/DC converting units, AD conversion unit, processor and display unit；The electricity
Pressure collecting unit signal is connected to pretreatment unit, for gathering raw voltage data, and the raw voltage data collected is sent out
Deliver to pretreatment unit；Signal is connected to transforming gear unit and processor to the pretreatment unit respectively, for according to processing
The control command that device is sended over is carried out to the raw voltage data received at attenuation processing, range swithching processing and amplification
Reason；Signal is connected to AC/DC converting units and AD conversion unit to the transforming gear unit respectively, for the electricity according to collection
Pressure is the route that DC voltage or alternating voltage change voltage transmission；The AC/DC converting units signal is connected to modulus and turned
Unit is changed, for alternating current to be converted into direct current；The AD conversion unit signal is connected to processor, for that will receive
The raw voltage data information of simulation be converted to data signal；The processor signal is connected to display unit, for docking
The data signal received is sampled, filtered and error correction, and the result of processing is sent to display unit and shown.
The pretreatment unit includes：Attenuator, quantum conversion module and amplification module；The attenuator signal is connected to
Quantum conversion module, for the value range for extremely setting the too high voltage attenuation of magnitude of voltage；The quantum conversion module, for root
The control command control relay sended over according to processor carries out corresponding adjustment to attenuator or amplification module, selects
Optimal range；The amplification module, for the too low voltage amplification of magnitude of voltage to the value range set.
The processor includes：Sampling module, filtration module and error correction module；The sampling module signal is connected to
Filtration module, for being sampled to the voltage signal received；The filtration module is communicated to connect with error correction module, is used
Sampled in the voltage signal to receiving；The error correction module by signal is connected to display unit, for receiving
Voltage signal carry out error correction, the result after correction is sent to display unit and shown.
The transforming gear unit includes：Identification module and switch module；The identification module signal is connected to switching molding
Block, for the voltage data received to be identified, it is DC voltage or alternating current voltage to judge it；The switching molding
Signal is connected to AC/DC converting units and AD conversion unit to block respectively, for the recognition result according to identification module, and judging should
Which bar circuit of the connection.
A kind of intelligent high-accuracy voltage collecting method, it is characterised in that the described method comprises the following steps：
Step 1：System initialization, processor setting highest range, voltage acquisition unit starts to gather raw voltage data；
Step 2：Pretreatment unit is decayed and enhanced processing to the raw voltage data collected, by the electricity after processing
Pressure data send gear converting unit extremely；
Step 3：Gear converting unit judges that the voltage data that receives is DC voltage or alternating current voltage, if
DC voltage then performs step 5；If alternating current voltage, then step 4 is performed；
Step 4：Alternating current is converted to direct current by AC/DC converting units, and the voltage data after turning is sent to A/D and changed
Unit；
Step 5：The analog voltage data received are converted to digital voltage data by A/D converting units, after conversion
Voltage data is sent to processor；
Step 6：Processor judges whether the range of the voltage data received exceedes the threshold value A of setting；If not above if
Perform step 7；If exceeding, highest range is determined whether, if highest range, then carry out overload processing；If not
Highest range, then be switched to highest range, re-execute step 5；
Step 7：Processor judges whether the range of the voltage data received exceedes the threshold value B of setting；Enter if more than if
Row scales transforming, performs step 8；If being not above, minimum beam great achievement is determined whether, if minimum range, then carry out
Scales transforming performs step 8；If not minimum range, then one grade of range is dropped, step 5 is re-executed；
Step 8：Processor is sampled to the voltage data received, filtered and error correction processing, after processing
As a result send to display unit and shown.
The method that the processor is filtered to the voltage data received comprises the following steps：
Step 1：Processor presets the maximum deviation threshold value that a neighbouring sample allows： QUOTE ；
Step 2：Carry out to judge as follows when detecting new voltage data every time：If the new voltage number received
It is less than or equal to DT according to the absolute value of the previous voltage data received, then this sampled value is effective；It is opposite then abandon receive
The new voltage data arrived, takes previous voltage data to replace new voltage data.
The method that the processor carries out error correction to the voltage data received comprises the following steps：
Step 1：Set voltage sample data as： QUOTE , wherein QUOTE ；
Wherein QUOTE For the magnitude of voltage after scale conversion；The QUOTE For actual voltage value；Adopt
Coefficient QUOTE is obtained with equation below And QUOTE ；
QUOTE ；
QUOTE ；
Step 2：By each correction point data（Xi, Yi）Substitute into upper two formula and obtain coefficient a, b value, and deposit the interior of people's processor
In memory cell；In formal measurement, corrected value Y is obtained according to measured value and error correction equations Y=aX+b, so as to eliminate system
Error.
The utility model is not limited to foregoing embodiment.The utility model expands to any in this specification
The new feature of middle disclosure or any new combination, and disclose any new method or process the step of or any new group
Close.
Claims (4)
1. a kind of intelligent high-accuracy voltage data collecting system, it is characterised in that the system includes：Voltage acquisition unit,
Pretreatment unit, transforming gear unit, AC/DC converting units, AD conversion unit, processor and display unit；The voltage
Collecting unit signal is connected to pretreatment unit, for gathering raw voltage data, and the raw voltage data collected is sent
To pretreatment unit；Signal is connected to transforming gear unit and processor to the pretreatment unit respectively, for according to processor
The control command sended over carries out attenuation processing, range swithching processing and enhanced processing to the raw voltage data received；
Signal is connected to AC/DC converting units and AD conversion unit to the transforming gear unit respectively, for the voltage according to collection
It is the route that DC voltage or alternating voltage change voltage transmission；The AC/DC converting units signal is connected to analog-to-digital conversion
Unit, for alternating current to be converted into direct current；The AD conversion unit signal is connected to processor, for that will receive
The raw voltage data information of simulation is converted to data signal；The processor signal is connected to display unit, for receiving
To data signal sampled, filtered and error correction, the result of processing is sent to display unit and shown.
2. intellectuality high-accuracy voltage data collecting system as claimed in claim 1, it is characterised in that the pretreatment unit
Including：Attenuator, quantum conversion module and amplification module；The attenuator signal is connected to quantum conversion module, for by electricity
Pressure is worth too high voltage attenuation to the value range set；The quantum conversion module, for the control sended over according to processor
Order control relay processed carries out corresponding adjustment to attenuator or amplification module, selects optimal range；The amplification
Module, for the too low voltage amplification of magnitude of voltage to the value range set.
3. intellectuality high-accuracy voltage data collecting system as claimed in claim 2, it is characterised in that the processor bag
Include：Sampling module, filtration module and error correction module；The sampling module signal is connected to filtration module, for receiving
To voltage signal sampled；The filtration module is communicated to connect with error correction module, for believing the voltage received
Number sampled；The error correction module by signal is connected to display unit, for carrying out error to the voltage signal received
Correction, the result after correction is sent to display unit and shown.
4. intellectuality high-accuracy voltage data collecting system as claimed in claim 3, it is characterised in that the transforming gear list
Member includes：Identification module and switch module；The identification module signal is connected to switch module, for the voltage number to receiving
According to being identified, it is DC voltage or alternating current voltage to judge it；Signal is connected to AC/DC turns to the switch module respectively
Unit and AD conversion unit are changed, for the recognition result according to identification module, which bar circuit judgement should connect.
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| CN201620988016.2U CN206479576U (en) | 2016-08-31 | 2016-08-31 | A kind of intelligent high-accuracy voltage data collecting system |
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| CN201620988016.2U CN206479576U (en) | 2016-08-31 | 2016-08-31 | A kind of intelligent high-accuracy voltage data collecting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199169A (en) * | 2016-08-31 | 2016-12-07 | 成都市和平科技有限责任公司 | A kind of intelligent high-accuracy voltage data collecting system and method |
| WO2022016577A1 (en) * | 2020-07-21 | 2022-01-27 | 南京智金科技创新服务中心 | Power monitoring system and monitoring method |
-
2016
- 2016-08-31 CN CN201620988016.2U patent/CN206479576U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199169A (en) * | 2016-08-31 | 2016-12-07 | 成都市和平科技有限责任公司 | A kind of intelligent high-accuracy voltage data collecting system and method |
| WO2022016577A1 (en) * | 2020-07-21 | 2022-01-27 | 南京智金科技创新服务中心 | Power monitoring system and monitoring method |
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