CN106066465A - A kind of Watt-hour meter's field test remote impulse module and method of calibration thereof - Google Patents
A kind of Watt-hour meter's field test remote impulse module and method of calibration thereof Download PDFInfo
- Publication number
- CN106066465A CN106066465A CN201610531497.9A CN201610531497A CN106066465A CN 106066465 A CN106066465 A CN 106066465A CN 201610531497 A CN201610531497 A CN 201610531497A CN 106066465 A CN106066465 A CN 106066465A
- Authority
- CN
- China
- Prior art keywords
- pulse
- module
- signal
- idle
- restorer
- 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
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention relates to metering device field-checking technical field, particularly relate to a kind of Watt-hour meter's field test remote impulse module and method of calibration thereof.Including Pulse sampling device and pulse restorer, Pulse sampling device is arranged at electric energy meter, and the former device of going back of pulse is arranged at tester, and Pulse sampling device and pulse restorer carry out the mutual of signal by communication；Method of calibration is that Pulse sampling device collection is gained merit pulse and idle pulse；Pulse restorer is passed to after Pulse sampling device coding；Pulse restorer is reduced into meritorious pulse and idle pulse signal；Meritorious pulse signal and idle pulse signal are passed to tester；Calculate electric energy meter and the synthetic error of secondary circuit.
Description
Technical field
The present invention relates to metering device field-checking technical field, particularly relate to a kind of Watt-hour meter's field test long-range
Pulse module and method of calibration thereof.
Background technology
Watt-hour meter's field test is divided into calibrating and periodic calibration first, is to ensure that electric power meter safety and precise is stably transported
The technological means of row.At present on-the-spot at high-voltage meter, metering device by voltage transformer, current transformer and electric energy meter with
And secondary circuit composition；Potential and current transformers is converted into low voltage signal high voltage, big electric current is converted into small area analysis letter
Number passing to electric energy meter, electric energy meter calculates use energy value according to voltage x current.Watt-hour meter's field test is that transformer is exported
Low-voltage and small area analysis enter tester at electric energy meter side joint, simultaneously meritorious pulse and the idle pulse signal of electric energy meter output
Also accessing tester, the voltage x current gauge of access is calculated energy value as benchmark by tester, and pulse signal is calculated electric energy
It is worth comparison therewith and i.e. calculates the error of electric energy meter.
But for digital electric energy meter, transformer installation site is farther out and voltage and current signal is transformed in transformer side
Being connected to electric energy meter by optical fiber after digital signal, ammeter side cannot obtain voltage and current signal and cannot complete verification.Therefore examine
Consider from transformer side draw voltage and current signal, carry out field-checking from ammeter side draw pulse signal, then can detect electric energy meter
Error and secondary circuit cause the synthetic error value of error.Synthetic error value is long for digital electricity meter and secondary circuit
Common electric energy meter all can judge the accuracy of metering more directly perceived, more scientificly.
If now use tester that the error amount that electric energy meter and secondary circuit are comprehensive is verified, or tester
It is placed on electric energy meter side and extends transformer secondary voltage current signal access tester with wiring；Tester is placed on mutual inductance
Device side also extends electric energy meter pulse signal wiring access tester.Former connection is readily incorporated secondary voltage current signal and connects
The error of line is readily incorporated signal disturbing to tester to tester, latter connection.Either way can cause verification
Distortion, and wiring wastes time and energy and is susceptible to the safety problem even causing voltage x current line external of slipping up.
Summary of the invention
It is an object of the invention to for above-mentioned weak point provide a kind of Watt-hour meter's field test remote impulse module and
Method of calibration, solve this transformer position and electric energy meter farther out in the case of the defect of field-checking, it is to avoid extend wiring and draw
Enter error and interference, make field electric energy table field-checking safe and reliable, accurate, comprehensive.
The present invention takes techniques below scheme to realize:
A kind of Watt-hour meter's field test remote impulse module includes Pulse sampling device and pulse restorer, and Pulse sampling device is arranged on
At electric energy meter, the former device of going back of pulse is arranged at tester, and Pulse sampling device and pulse restorer are carried out by communication
Signal mutual；
The electric energy meter collected is exported meritorious pulse signal and idle pulse-code and is wirelessly transmitted to by Pulse sampling device
Pulse restorer, is reduced the pulse signal received by pulse restorer and accesses tester.Tester is by transformer side
The access of voltage x current amount calculates energy value and does benchmark, calculates energy value with the pulse signal accessed by pulse restorer and does ratio
Right, calculate the synthetic error of electric energy meter and secondary circuit immediately.
Described communication uses 2.4G wireless communication protocol.
Described Pulse sampling device is by pulse collection MCU microprocessor module, pulse collection wireless communication module, pulse collection
Power module, pulse signal acquisition module and pulse collection Subscriber Interface Module SIM composition；Pulse collection MCU microprocessor module divides
Do not connect with pulse collection wireless communication module, pulse collection power module, pulse signal acquisition module and pulse collection user
Mouth die block is connected；Described pulse collection MCU microprocessor module is responsible for calling other module completion system mesh of Pulse sampling device
Mark function.
Described pulse collection MCU microprocessor module uses commercially available ARM Cortex-M3 32-bit microprocessor as core
The heart.
Described pulse collection wireless communication module uses commercially available 2.4G wireless communication module, by monolithic wireless transceiver core
Sheet and low-noise amplifier (LNA), power amplifier (PA) and antenna composition；Described monolithic wireless transceiver chip uses city
The nRF24L01 chip sold.
Described pulse collection power module uses commercially available power module, stationary filtering circuit, lithium battery, lithium battery protect
Protection circuit, lithium battery charging circuit, lithium battery discharge protection circuit and power supply switch circuit composition, be responsible for system power supply, and
To lithium cell charging, when not having external power supply to input, use lithium battery to system power supply.
Described lithium battery uses 2800mHA poly-lithium battery, is available for host computer system and works continuously more than 30 hours.
Described pulse signal acquisition module is used for gathering the meritorious pulse of electric energy meter and idle pulse signal and collecting
Signal input MCU one-chip computer module.
Described pulse collection Subscriber Interface Module SIM includes button, display lamp and buzzer, inputs for user control signal
Show with status information.
Pulse restorer (receiver) is former by MCU microprocessor module, wireless communication module, power module, pulse signal
Also module and Subscriber Interface Module SIM composition；MCU microprocessor module respectively with wireless communication module, power module, pulse signal
Acquisition module and Subscriber Interface Module SIM are connected；Described MCU microprocessor module is responsible for calling other module completion system target
Function.
Described MCU microprocessor module uses commercially available ARM Cortex-M3 32-bit microprocessor as core, is responsible for
Call other module completion system objective function in pulse restorer.
Described wireless communication module uses commercially available 2.4G wireless communication module, by monolithic wireless transceiver chip with low
Noise amplifier (LNA), power amplifier (PA) and antenna composition；Described monolithic wireless transceiver chip uses commercially available
NRF24L01 chip.
Described power module uses commercially available power module, and power module is protected by stationary filtering circuit, lithium battery, lithium battery
Protection circuit, lithium battery charging circuit, lithium battery discharge protection circuit and power supply switch circuit composition, be responsible for system power supply, and
To lithium cell charging, when not having external power supply to input, use lithium battery to system power supply.
Described lithium battery uses 900mHA poly-lithium battery to be available for host computer system and works continuously more than 5 hours.
Described pulse signal recovery module becomes meritorious pulse and idle arteries and veins for the signals revivification that MCU single-chip microcomputer is transmitted through
Rush signal and by meritorious pulse and idle output of pulse signal.
Described Subscriber Interface Module SIM includes button, display lamp and buzzer, believes with state for user control signal input
Breath display.
A kind of Watt-hour meter's field test uses the method for calibration of remote impulse module, comprises the following steps:
1) Pulse sampling device gathers the meritorious pulse of electric energy meter output and idle pulse；
2) Pulse sampling device passes to pulse restorer after the meritorious pulse collected and idle pulse signal being encoded；
3) decode after pulse restorer receives the coding that Pulse sampling device sends, be reduced into meritorious pulse and idle pulse letter
Number.
4) meritorious pulse and the idle pulse signal of reduction are accessed tester by pulse restorer, thus realize meritorious pulse
Signal and the long-range and real-time Transmission of idle pulse signal；
5) be placed on the tester of transformer side to be accessed by voltage x current simultaneously, be wirelessly transferred meritorious pulse that decoding obtains and
Idle pulse signal comparison, i.e. tester is calculated energy value by current/voltage, the electric energy being converted into the umber of pulse received
Value contrasts, and calculates the synthetic error of electric energy meter and secondary circuit.
In step 1), a length of 80ms make-and-break signal when with idle pulse signal being of gaining merit of electric energy meter output, pulse is adopted
Storage is to the 5V high level signal that the upper connecting resistance of electric energy meter pulse interface offer one is 2K, when electric energy meter has pulse to export,
This signal is pulled to low level i.e. 0V；Pulse sampling device this signal of device Real-time Collection, when level is become low level also from high level
When persistent period is 80ms, i.e. it is denoted as adopting 1 pulse.
In step 3), pulse restorer, when to form 1 pulse after decoding, controls in impulse output circuit
Optocoupler signal conduction persistently 80ms.
In step 5), the conversion between umber of pulse and energy value is carried out according to constant of electric energy meter, and 1 pulse represents spy
Quantitative energy value, such as constant of electric energy meter are 3600imp/ kW.h, then 3600 pulses add up to be 1 kW.h energy value, this
Time 1 pulse be exactly 1/3600kW.h.
Advantages of the present invention: Watt-hour meter's field test remote impulse module and method of calibration, utilizes Pulse sampling device and arteries and veins
Rush restorer, it is achieved remote signal is transmitted, solve transformer position and electric energy meter farther out in the case of field-checking especially
A difficult problem for digitalized electrical energy meter field-checking, it is to avoid extend wiring and introduce error and interference, make Watt-hour meter's field test safety, can
Lean on, accurately, comprehensively.
Accompanying drawing explanation
Below with reference to accompanying drawing, the invention will be further described:
Fig. 1 is the operation principle block diagram of the present invention；
Fig. 2 is the theory diagram of the Pulse sampling device of the present invention；
Fig. 3 is the theory diagram of the pulse restorer of the present invention；
Fig. 4 is the structural representation of the Pulse sampling device of the present invention；
Fig. 5 is the channel digit display mode example schematic of the Pulse sampling device of the present invention.
Detailed description of the invention
With reference to Fig. 1～5, one Watt-hour meter's field test remote impulse module of the present invention includes Pulse sampling device and pulse also
Prototype, Pulse sampling device is arranged at electric energy meter, and the former device of going back of pulse is arranged at tester, Pulse sampling device and pulse restorer
The mutual of signal is carried out by communication；
Meritorious pulse signal that the electric energy meter collected is exported by Pulse sampling device and idle pulse-code also send arteries and veins to
Rushing restorer, pulse restorer this merit pulse signal and idle pulse signal reduced and send tester to, tester will
The voltage x current of transformer side accesses, and meritorious pulse and the idle pulse signal contrast conting sent with pulse restorer go out electric energy
Table and the synthetic error of secondary circuit.
Described communication uses 2.4G wireless communication protocol.
Described Pulse sampling device is by pulse collection MCU microprocessor module, pulse collection wireless communication module, pulse collection
Power module, pulse signal acquisition module and pulse collection Subscriber Interface Module SIM composition；Pulse collection MCU microprocessor module divides
Do not connect with pulse collection wireless communication module, pulse collection power module, pulse signal acquisition module and pulse collection user
Mouth die block is connected；Described pulse collection MCU microprocessor module is responsible for calling other module completion system mesh of Pulse sampling device
Mark function.
Described pulse collection MCU microprocessor module uses commercially available ARM Cortex-M3 32-bit microprocessor as core
The heart.
Described pulse collection wireless communication module uses commercially available 2.4G wireless communication module, by monolithic wireless transceiver core
Sheet and low-noise amplifier (LNA), power amplifier (PA) and antenna composition；Described monolithic wireless transceiver chip uses city
The nRF24L01 chip sold, is the monolithic wireless transceiver chip of ISM frequency range；NRF24L01 chip has 125 working channels,
It is distributed in 2.400G to 2.524G frequency range；For avoiding and the interfering of WIFI, the present invention shields and WIFI frequency range
(2.400G-2.4835G) 0-84(2.400G-2.484 overlapped) channel；In order to further enhance capacity of resisting disturbance, pulse is adopted
The CPU primary control program of collection MCU microprocessor module is monitored by frequency and is communicated unobstructed with frequency hopping guarantee: CPU master control journey after start
It is the most occupied that sequence monitors current channel, if occupied, jumps to X+1 channel from current channel X immediately；If X+1 channel is still
The most occupied, then jump to X+2 channel, until finding clear channel.
Described pulse collection power module uses commercially available power module, stationary filtering circuit, lithium battery, lithium battery protect
Protection circuit, lithium battery charging circuit, lithium battery discharge protection circuit and power supply switch circuit composition, be responsible for system power supply, and
To lithium cell charging, when not having external power supply to input, use lithium battery to system power supply.
Described lithium battery uses 2800mHA poly-lithium battery, is available for host computer system and works continuously more than 30 hours.
Described pulse signal acquisition module is used for gathering the meritorious pulse of electric energy meter and idle pulse signal and collecting
Signal input MCU one-chip computer module.
Described pulse collection Subscriber Interface Module SIM includes button, display lamp and buzzer, inputs for user control signal
Show with status information.
Pulse restorer (receiver) is former by MCU microprocessor module, wireless communication module, power module, pulse signal
Also module and Subscriber Interface Module SIM composition；MCU microprocessor module respectively with wireless communication module, power module, pulse signal
Acquisition module and Subscriber Interface Module SIM are connected；Described MCU microprocessor module is responsible for calling other module completion system target
Function.
Described MCU microprocessor module uses commercially available ARM Cortex-M3 32-bit microprocessor as core, is responsible for
Call other module completion system objective function in pulse restorer.
Described wireless communication module uses commercially available 2.4G wireless communication module, by monolithic wireless transceiver chip with low
Noise amplifier (LNA), power amplifier (PA) and antenna composition；Described monolithic wireless transceiver chip uses commercially available
NRF24L01 chip, is the monolithic wireless transceiver chip of ISM frequency range；NRF24L01 has 125 working channels, is distributed in
2.400G to 2.524G frequency range；For avoiding and the interfering of WIFI, shield and WIFI frequency range (2.400G-2.4835G) weight
The 0-87(2.400G-2.484 closed) channel, work in 88-119, totally 32 channels；In order to further enhance capacity of resisting disturbance,
The CPU primary control program of MCU microprocessor module is carried out frequency and is monitored and frequency hopping；The start of pulse restorer or work are adopted with pulse
When storage cannot set up connection, Automatic Cycle 32 channels of detection, contrasted by address code and search for the pulse letter matched
Number harvester, and set up connection.
Described power module uses commercially available power module, and power module is protected by stationary filtering circuit, lithium battery, lithium battery
Protection circuit, lithium battery charging circuit, lithium battery discharge protection circuit and power supply switch circuit composition, be responsible for system power supply, and
To lithium cell charging, when not having external power supply to input, use lithium battery to system power supply.
Described lithium battery uses 900mHA poly-lithium battery to be available for host computer system and works continuously more than 5 hours.
Described pulse signal recovery module becomes meritorious pulse and idle arteries and veins for the signals revivification that MCU single-chip microcomputer is transmitted through
Rush signal and by meritorious pulse and idle output of pulse signal.
Described Subscriber Interface Module SIM includes button, display lamp and buzzer, believes with state for user control signal input
Breath display.
A kind of Watt-hour meter's field test uses the method for calibration of remote impulse module, comprises the following steps:
1) Pulse sampling device gathers the meritorious pulse of electric energy meter output and idle pulse；
2) Pulse sampling device passes to pulse restorer after the meritorious pulse collected and idle pulse signal being encoded；
3) decode after pulse restorer receives the coding that Pulse sampling device sends, be reduced into meritorious pulse and idle pulse letter
Number.
4) meritorious pulse and the idle pulse signal of reduction are passed to tester by pulse restorer, thus realize meritorious pulse
Signal and the long-range and real-time Transmission of idle pulse signal；
5) be placed on the tester of transformer side to be accessed by voltage x current simultaneously, be wirelessly transferred meritorious pulse that decoding obtains and
Idle pulse signal comparison, i.e. tester are calculated energy value by current/voltage and do benchmark, the umber of pulse received are converted into
Energy value in contrast, then calculate the synthetic error of electric energy meter and secondary circuit.
It is embodied as 1:
Between voltage transformer and the current transformer of cooperation close together, and the situation distant with electric energy meter；
1) Pulse sampling device in this module is placed on electric energy meter side, meritorious by its pulse signal input line and electric energy meter
Pulse output terminal is connected with idle pulse output terminal, and opens the on and off switch of Pulse sampling device, and Pulse sampling device starts
Work；
2) the pulse restorer in this module is positioned over tester side, by its output of pulse signal line and having on tester
Sub and idle pulse input end of merit pulse input end is connected, and opens the on and off switch of pulse restorer, and pulse restorer starts
Work.
3) on-site calibrator is placed on by the terminal cabinet of transformer, accesses the voltage and current signal of transformer output, school
Test beginning.
The meritorious pulse of the pulse signal acquisition module Real-time Collection electric energy meter in described Pulse sampling device and idle pulse
Output, when the level variation collected on pulse terminal, pulse signal acquisition module passes to the micro-place of pulse collection MCU signal
Reason device module, pulse collection MCU microprocessor module is according to level change type and the idle pulse pattern of meritorious pulse, to signal
Coding, then pass to pulse restorer by 2.4G communication.
The MCU microprocessor module of described pulse restorer solves receiving coding by 2.4G communication
Code, then MCU microprocessor module control wave recovery module generates meritorious pulse signal or idle pulse signal, passes to
On-site calibrator carries out field-checking.
It is embodied as 2:
When use bus-type voltage transformer coordinate circuit current transformer, voltage transformer distance current transformer farther out, and
All distant with electric energy meter situation；
1) Pulse sampling device in this module is placed on electric energy meter side, meritorious by its pulse signal input line and electric energy meter
Pulse output terminal is connected with idle pulse output terminal, and opens the on and off switch of Pulse sampling device, and Pulse sampling device starts
Work.
2) the pulse restorer in this module is positioned over tester side, by its output of pulse signal line and tester
Sub and idle pulse input end of meritorious pulse input end be connected, open the on and off switch of pulse restorer, pulse restorer
Start working.
3) on-site calibrator is placed on by current transformer terminal cabinet, accesses current signal and the use of current transformer output
Extending the voltage signal that cable exports at voltage transformer, verification starts.
The meritorious pulse gathering electric energy meter that pulse signal acquisition module in described Pulse sampling device is real-time and idle arteries and veins
Punching output, when collecting the level variation on terminal, the MCU that pulse signal acquisition module passes to Pulse sampling device signal is micro-
Processor module, MCU microprocessor module is according to level change type and the idle pulse pattern of meritorious pulse, to Signal coding,
Pulse restorer is passed to again by 2.4G communication.
The MCU microprocessor module of described pulse restorer solves receiving coding by 2.4G communication
Code, then MCU microprocessor module control wave recovery module generates meritorious pulse signal or idle pulse signal, passes to
On-site calibrator carries out field-checking.The self-checking function using secondary pressure drop tester if desired is measured and is extended the mistake that cable brings
Difference, to improve the accuracy of verification in artificial calculating to the test error value of tester.
Referring to the drawings 4, it is the structural representation of Pulse sampling device (transmitter), Pulse sampling device panel is provided with instruction
Lamp, arranging key and reset key, described display lamp includes power lights, connects lamp, battery lamp, signal lights, morse signal light and emission lamp；
Open Pulse sampling device (transmitter) and pulse restorer (receiver) power supply, connect lamp bright, when not flashing, represent connection
Stable, have built up connection, can normally work.
Battery lamp is bright, represents that electricity is low, and battery will close wireless module power supply less than 3.6V, now connects and will interrupt.
Key is set for arranging manual communication channel；During use, press and key is set, enter the state that arranges, and by [launching
Connect signal communication battery] five display lamps, show current channel, have 32 channels, 88-119；Entrance arranges state
After, by pressing "+" key so that channel digit increases, and increases to 119 channels, then adds return 88 channels；After being provided with, by resetting
Key is restarted.
Accompanying drawing 5 is concrete channel digit display mode example, and the bright corresponding numerical value of display lamp is 1, and display lamp goes out, and corresponding numerical value is
0, corresponding [0] position of emission lamp, connect lamp corresponding [1], corresponding [2] position of signal lights, morse signal light is corresponding [3], and battery lamp is corresponding [4],
Now, [0]=1, [1]=0, [2]=1, [3]=1, [4]=0；
Channel number=88+ ([0] * 1+ [1] * 2+ [2] * 4+ [3] * 8+ [4] * 16)
=88+(1*1+0*2+1*4+1*8+0*16)
=101
Described power supply has USB interface, can be general with cellular phone data line.
The battery capacity of affiliated lithium battery is 900mAH, about 5 hours working times, about 90 minutes charging intervals.
The signal transmission distance of Pulse sampling device is, transmits about 1000 meters at complex environment more than 50m, depletion region.
Claims (10)
1. a Watt-hour meter's field test remote impulse module, it is characterised in that: include Pulse sampling device and pulse restorer, arteries and veins
Rushing harvester and be arranged at electric energy meter, the former device of going back of pulse is arranged at tester, and Pulse sampling device and pulse restorer pass through nothing
Line communication mode carries out the mutual of signal；
Meritorious pulse signal that the electric energy meter collected is exported by Pulse sampling device and idle pulse-code also send arteries and veins to
Rushing restorer, pulse restorer this merit pulse signal and idle pulse signal reduced and access tester, tester will be mutually
The voltage x current of sensor side accesses, and meritorious pulse and the idle pulse signal contrast conting sent with pulse restorer go out electric energy meter
Synthetic error with secondary circuit.
Watt-hour meter's field test remote impulse module the most according to claim 1, it is characterised in that: described side wireless communication
Formula uses 2.4G wireless communication protocol.
Watt-hour meter's field test remote impulse module the most according to claim 1, it is characterised in that: described Pulse sampling device
By pulse collection MCU microprocessor module, pulse collection wireless communication module, pulse collection power module, pulse signal acquisition
Module and pulse collection Subscriber Interface Module SIM composition；Pulse collection MCU microprocessor module respectively with pulse collection wireless telecommunications
Module, pulse collection power module, pulse signal acquisition module and pulse collection Subscriber Interface Module SIM are connected；Described pulse is adopted
Collection MCU microprocessor module is responsible for calling other module completion system objective function of Pulse sampling device.
Watt-hour meter's field test remote impulse module the most according to claim 1, it is characterised in that: described pulse signal is adopted
Collection module is used for gathering the meritorious pulse of electric energy meter and idle pulse signal the signal input MCU single-chip microcomputer mould that will collect
Block.
Watt-hour meter's field test remote impulse module the most according to claim 1, it is characterised in that: described pulse collection is used
Family interface module includes button, display lamp and buzzer, shows with status information for user control signal input.
Watt-hour meter's field test remote impulse module the most according to claim 1, it is characterised in that: pulse restorer by
The former also module of MCU microprocessor module, wireless communication module, power module, pulse signal and Subscriber Interface Module SIM composition；MCU
Microprocessor module is connected with wireless communication module, power module, pulse signal acquisition module and Subscriber Interface Module SIM respectively；
Described MCU microprocessor module is responsible for calling other module completion system objective function；Described pulse signal recovery module is used for
The signals revivification that MCU single-chip microcomputer is transmitted through becomes meritorious pulse and idle pulse signal and by meritorious pulse and idle pulse signal
Output.
Watt-hour meter's field test remote impulse module the most according to claim 1, it is characterised in that: described user interface mould
Block includes button, display lamp and buzzer, shows with status information for user control signal input.
8. utilize the Watt-hour meter's field test described in claim 1 to use a method of calibration for remote impulse module, its feature
It is, comprises the following steps:
1) Pulse sampling device gathers the meritorious pulse of electric energy meter output and idle pulse；
2) Pulse sampling device passes to pulse restorer after the meritorious pulse collected and idle pulse signal being encoded；
3) decode after pulse restorer receives the coding that Pulse sampling device sends, be reduced into meritorious pulse and idle pulse letter
Number；
4) meritorious pulse and the idle pulse signal of reduction are passed to tester by pulse restorer, thus realize meritorious pulse signal
With the long-range of idle pulse signal and real-time Transmission；
5) be placed on the tester of transformer side to be accessed by voltage x current simultaneously, be wirelessly transferred meritorious pulse that decoding obtains and
Idle pulse signal comparison, i.e. tester is calculated energy value by current/voltage, the electric energy being converted into the umber of pulse received
Value contrasts, and calculates the synthetic error of electric energy meter and secondary circuit.
Watt-hour meter's field test the most according to claim 8 uses the method for calibration of remote impulse module, it is characterised in that
In step 1), a length of 80ms make-and-break signal when with idle pulse signal being of gaining merit of electric energy meter output, Pulse sampling device gives electricity
One upper connecting resistance of energy table pulse interface offer is the 5V high level signal of 2K, when electric energy meter has pulse to export, this signal quilt
Draw as low level i.e. 0V；Pulse sampling device this signal of device Real-time Collection, when level is become low level persistent period from high level
During for 80ms, i.e. it is denoted as adopting 1 pulse.
The method of calibration of Watt-hour meter's field test remote impulse module the most according to claim 8, it is characterised in that
In step 3), pulse restorer is when to form 1 pulse after decoding, and the light coupling signal controlled in impulse output circuit is led
Lead to and continue 80ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610531497.9A CN106066465A (en) | 2016-07-07 | 2016-07-07 | A kind of Watt-hour meter's field test remote impulse module and method of calibration thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610531497.9A CN106066465A (en) | 2016-07-07 | 2016-07-07 | A kind of Watt-hour meter's field test remote impulse module and method of calibration thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106066465A true CN106066465A (en) | 2016-11-02 |
Family
ID=57206648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610531497.9A Pending CN106066465A (en) | 2016-07-07 | 2016-07-07 | A kind of Watt-hour meter's field test remote impulse module and method of calibration thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106066465A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110764045A (en) * | 2019-11-26 | 2020-02-07 | 国网四川省电力公司电力科学研究院 | Verification system and verification method for digital metering of intelligent substation |
| CN110988784A (en) * | 2019-12-27 | 2020-04-10 | 广东电科院能源技术有限责任公司 | Error verification system for electric energy metering equipment |
| CN111882847A (en) * | 2020-04-16 | 2020-11-03 | 中国电力科学研究院有限公司 | Electric energy meter pulse transmission method and device based on low-power-consumption Bluetooth chip |
| CN111935687A (en) * | 2020-07-21 | 2020-11-13 | 深圳市创鸿新智能科技有限公司 | Pulse signal wireless transmission system and calibration method thereof |
| CN112700632A (en) * | 2020-12-23 | 2021-04-23 | 南方电网电力科技股份有限公司 | Method and system for transmitting wireless metering pulse in multiple channels |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221229A (en) * | 2008-01-29 | 2008-07-16 | 郑州万特电气有限公司 | Method for testing synthetic measuring error of high tension electric energy metering installation |
| EP2343561A1 (en) * | 2010-01-07 | 2011-07-13 | Mobile Comfort Holding | Method and system for remotely controlling a certified measuring chain |
| CN204166121U (en) * | 2014-11-12 | 2015-02-18 | 成都天兴电气有限公司 | Based on the electric energy meter field calibration system of satellite navigation system |
| CN204705708U (en) * | 2015-07-07 | 2015-10-14 | 国家电网公司 | To the device that the measuring apparatus in distributed transformer substation is calibrated |
| CN205941876U (en) * | 2016-07-07 | 2017-02-08 | 国网江苏省电力公司宿迁供电公司 | Long -range pulse module of on --spot check -up of electric energy meter |
-
2016
- 2016-07-07 CN CN201610531497.9A patent/CN106066465A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221229A (en) * | 2008-01-29 | 2008-07-16 | 郑州万特电气有限公司 | Method for testing synthetic measuring error of high tension electric energy metering installation |
| EP2343561A1 (en) * | 2010-01-07 | 2011-07-13 | Mobile Comfort Holding | Method and system for remotely controlling a certified measuring chain |
| CN204166121U (en) * | 2014-11-12 | 2015-02-18 | 成都天兴电气有限公司 | Based on the electric energy meter field calibration system of satellite navigation system |
| CN204705708U (en) * | 2015-07-07 | 2015-10-14 | 国家电网公司 | To the device that the measuring apparatus in distributed transformer substation is calibrated |
| CN205941876U (en) * | 2016-07-07 | 2017-02-08 | 国网江苏省电力公司宿迁供电公司 | Long -range pulse module of on --spot check -up of electric energy meter |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110764045A (en) * | 2019-11-26 | 2020-02-07 | 国网四川省电力公司电力科学研究院 | Verification system and verification method for digital metering of intelligent substation |
| CN110988784A (en) * | 2019-12-27 | 2020-04-10 | 广东电科院能源技术有限责任公司 | Error verification system for electric energy metering equipment |
| CN111882847A (en) * | 2020-04-16 | 2020-11-03 | 中国电力科学研究院有限公司 | Electric energy meter pulse transmission method and device based on low-power-consumption Bluetooth chip |
| CN111935687A (en) * | 2020-07-21 | 2020-11-13 | 深圳市创鸿新智能科技有限公司 | Pulse signal wireless transmission system and calibration method thereof |
| CN111935687B (en) * | 2020-07-21 | 2024-01-16 | 深圳市创鸿新智能科技有限公司 | Pulse signal wireless transmission system and calibration method thereof |
| CN112700632A (en) * | 2020-12-23 | 2021-04-23 | 南方电网电力科技股份有限公司 | Method and system for transmitting wireless metering pulse in multiple channels |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106066465A (en) | A kind of Watt-hour meter's field test remote impulse module and method of calibration thereof | |
| CN104410164B (en) | Ii type electric energy efficiency management terminal and system | |
| CN105004918A (en) | Acquisition device for operation energy consumption data of urban rail transit train | |
| CN102288849B (en) | Highway addressable remote transducer (HART) loop fault diagnosis instrument and method | |
| CN101833032A (en) | High-voltage direct metering device | |
| CN107367594A (en) | A kind of long-distance water quality monitoring system based on GPRS and SMS | |
| CN205941876U (en) | Long -range pulse module of on --spot check -up of electric energy meter | |
| CN104155530B (en) | Broadband multifunctional portable electromagnetic radiation detecting device | |
| CN202904325U (en) | Electric energy consumption data remote-monitoring matching device | |
| CN102997990B (en) | Transmission line of electricity audible noise and radio interference long-term measurement system and measuring method | |
| CN207623444U (en) | A kind of multi-epitope is visited one house after another examination device | |
| CN209148803U (en) | Intelligent casing on-Line Monitor Device | |
| CN208283463U (en) | A kind of Insulation Resistance Tester | |
| CN107884653B (en) | Electricity inspection equipment for extensible module | |
| CN201319049Y (en) | High-tension current mutual-inductor transformation ratio tester | |
| CN202916360U (en) | Switching value tester | |
| CN205317925U (en) | Intelligent ammeter metering error discriminating gear | |
| CN104897954A (en) | Multipath intelligent gas meter quiescent current automatic detection device | |
| CN212749169U (en) | Non-contact type electrified detection device for mechanical characteristics of circuit breaker | |
| CN110601367B (en) | Novel intelligent remote control measurement terminal system | |
| CN204304614U (en) | I type electric energy efficiency office terminal and system | |
| CN209784773U (en) | wireless transmission type liquid level monitoring device | |
| CN103116970B (en) | A kind of meter data gathers automatically, teletransmission and processing system and method | |
| CN201421477Y (en) | High-voltage direct measuring device attached to electric power line | |
| CN112526332A (en) | Non-contact type electrified detection device for mechanical characteristics of circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161102 |
|
| RJ01 | Rejection of invention patent application after publication |