CN106771420A - Portable zero-pressure lifting device - Google Patents
Portable zero-pressure lifting device Download PDFInfo
- Publication number
- CN106771420A CN106771420A CN201611050066.7A CN201611050066A CN106771420A CN 106771420 A CN106771420 A CN 106771420A CN 201611050066 A CN201611050066 A CN 201611050066A CN 106771420 A CN106771420 A CN 106771420A
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- China
- Prior art keywords
- lifting device
- pressure lifting
- module
- unit
- voltage
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- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
Abstract
The present invention relates to power transformation O＆M equipment and technical field, more particularly to portable zero-pressure lifting device.Including equipment box body, display module and output port are set, the output port connects signal generating unit, and the display module and the signal generating unit are connected with controller respectively on the body；The controller is arranged on the body interior, and the controller includes MCU module and respectively connected detection module, filtration module.Portable zero-pressure lifting device of the invention, its adjustable rated voltage disclosure satisfy that the demand of pressurization experiment, and rated current very little will not produce very big short circuit current to influence the stability of system, and easy to carry, operation is flexible, quick.
Description
Technical field
The present invention relates to power transformation O＆M equipment and technical field, more particularly to portable zero-pressure lifting device.
Background technology
It is general using the side for adding rated voltage when the completion of newly-built or reorganization and expansion power transmission and transforming equipment puts into operation in power system
Method is tested.Scheduling, the operation sequence for adjusting system operation mode are numerous and diverse, waste time and energy.When new equipment is faulty, can also produce
The very big short circuit current of life, the stability influence to system is larger.
The patent applied as 200810005156.3 provides a kind of booster circuit (12) generation and will be provided as boosting object
Low-voltage output boosted boosting output, while will as the output of itself boosting output a part as work
Energy back gives oneself.On the other hand, the startup energy that auxiliary boost circuit (13) will be generated according to low-voltage output is used as liter
Volt circuit (12) starts the startup energy for needing and booster circuit (12) is exported.
The patent applied as 201510107874.1 is related to voltage conversion device.It is contemplated that not stopping the liter of converter
In the case of press operation, made a distinction for abnormal between battery voltage sensor and the input voltage sensor of converter.
Voltage conversion device is equipped with the voltage of battery, converter, battery voltage sensor, input voltage VL for detecting converter
Sensor, the current sensor for detecting reactor current and control unit.Control unit is not stopping the liter of converter
In the case of press operation, based on the VL presumed values, the input voltage VL of converter that are calculated according to reactor current and battery electricity
Pressure VB, judgement is battery voltage sensor or input voltage sensor exception.
The patent applied as 201610671948.9 discloses a kind of device of voltage of transformation.The conversion electricity that the present invention is provided
The device of pressure is formed by reduction voltage circuit and booster circuit cascade, and the device of the voltage of transformation provided using the present invention can both be carried out
Step-down, it is also possible to boosted, buck can also be carried out, input voltage is identical with the polarity of output voltage, it is to avoid switch
Tube voltage stress is too high, while reducing number of electronic components.
The content of the invention
The purpose of the present invention is a kind of portable zero-pressure lifting device of design, and its adjustable rated voltage disclosure satisfy that pressurization
The demand of experiment, rated current very little will not produce very big short circuit current to influence the stability of system, easy to carry, operation
Flexibly, fast.
To realize that the technical scheme that the purpose of the present invention is used is：Portable zero-pressure lifting device, including equipment box sheet
Body, sets display module and output port on the body, the output port connects signal generating unit, the display module
It is connected with controller respectively with the signal generating unit；The controller is arranged on the body interior, the controller bag
Include MCU module and respectively connected detection module, filtration module.
Further, the signal generating unit includes voltage regulation unit and adjustable with what the voltage regulation unit was connected respectively
Formula current signal generator, adjustable voltage signal generator and pulse voltage source.
Further, the voltage regulation unit includes bridge-type shaping circuit and two-stage amplifying circuit.
Further, the MCU module includes singlechip chip and respectively connected modulus conversion chip, data
Deposit unit.
Further, the detection module includes voltage transformer and current transformer, and the current transformer is zero sequence
Current transformer, the core magnetism performance material of the current transformer uses permalloy.
Further, the filtration module includes arm processor and active low-pass filter.
Further, the display module includes digital-scroll technique unit, and the digital-scroll technique unit connects serial logical respectively
Letter interface, human-machine interface unit and memory, the digital-scroll technique unit include data setting panel and LED display module, institute
Stating data setting panel includes several data input buttons and order button.
Further, power module is set on the body, the power module respectively with the controller, the display
Module, signal generating unit connection.
Further, the power module includes photovoltaic array plate, and the photovoltaic array plate connects battery, the photovoltaic
Array version is arranged at the body surface.
Further, the body upper part sets folding-type handle, and the body bottom portion sets travel mechanism.
Further, the folding-type handle outer surface sets anti-skidding lining, set on the anti-skidding lining passage and
Water-absorbing sponge layer.
Further, the travel mechanism is flexible adjustable, and its underpart sets roller, and the roller is with braking
The universal wheel of component.
The beneficial effects of the present invention are：
1st, apparatus of the present invention combine detection and two big functions of output with portable design, wherein, what zero-pressure rose dependence is defeated
Go out function, the adjustable treatment of voltage stabilizing is carried out to voltage and current generating apparatus by signal generating unit, realize the defeated of pending signal
Go out, and voltage is separated with the output source of electric current, when rated voltage demand is met, will not produce larger specified electricity
Stream.
The abnormal conditions such as the 2nd, detection module that the present apparatus is connected using controller, real-time monitoring short circuit, open circuit, using control
Chip carries out Treatment Analysis in time, carries out voltage stabilizing treatment, it is ensured that the stability of system.
3rd, the present apparatus has been also compatible with display function, is capable of the voltage and current signal and the present apparatus of real-time detection test body
Output signal, and intuitively shown by digital-scroll technique unit, the data setting panel on digital-scroll technique unit can be connected
Signal generating unit, and instruction transmission is carried out to generating unit, thus when operation it is more directly perceived.
4th, the present apparatus is by setting handle and travel mechanism, it is possible to achieve quick locomotive function, and whole device is light to be used,
Rationally distributed, operation is flexible, should be widely promoted and uses.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Specific embodiment
Embodiment one
As shown in figure 1, portable zero-pressure lifting device, including equipment box body, display module 1 and output port are set on body
2, the connection signal generating unit 3 of output port 2, display module 1 and signal generating unit 3 are connected with controller 4 respectively；Controller
4 are arranged on body interior, and controller 4 includes MCU module 5 and respectively connected detection module 6, filtration module 7.Signal
Generating unit 3 includes voltage regulation unit 8 and the adjustable current signal generator 9, adjustable electric being connected with voltage regulation unit 8 respectively
Pressure signal generator 10 and pulse voltage source 11.Voltage regulation unit 8 includes bridge-type shaping circuit and two-stage amplifying circuit.MCU module 5
Including singlechip chip 12 and the connected modulus conversion chip 13 of difference, data registration unit 14.Detection module 6 includes
Voltage transformer 15 and current transformer 16, current transformer is zero sequence current mutual inductor, the core magnetism performance material of current transformer
Material uses permalloy.Filtration module 7 includes arm processor 17 and active low-pass filter 18.Display module 1 includes digital aobvious
Show unit 19, digital-scroll technique unit 19 connects serial communication interface 20, human-machine interface unit 21 and memory 22 respectively, and number is aobvious
Show that unit includes data setting panel and LED display module, data setting panel includes several data input buttons and instruction
Button.Power module is set on body, and power module is connected with controller, display module, signal generating unit respectively.Power supply mould
Block includes photovoltaic array plate, and photovoltaic array plate connection battery, photovoltaic array version is arranged at body surface.Body upper part sets folding
Stacked handle, body bottom portion sets travel mechanism.
Control core of the invention is the singlechip chip and arm processor that controller includes, they are mainly used to right
Voltage and current signal carries out detection process, is easy to display module to be shown, while being carried to the signal output of signal generating unit
For instructing foundation.Controller includes MCU module and respectively connected detection module, filtration module；MCU module includes single
Piece movement piece and respectively connected modulus conversion chip, data registration unit.
In concrete operations, device gathers the voltage and current signal of testing equipment, obtains analog signal device after filtering
Treatment is input to A/D converter, by analog-to-digital conversion, analog signal is converted into data signal, and single-chip microcomputer reads the knot of conversion
Really, and based on electrical performance index, the corresponding computing such as voltage, electric current, power is completed；Serial communication is passed through by ARM again
Sent to single-chip microcomputer and ordered, the data and operation result of single-chip microcomputer loopback measurement；Meanwhile, can also be realized by single-chip microcomputer equivalent
In over-current detection function, the detection of over-current signal is completed by zero sequence current mutual inductor, the protected circuit that it will can be detected
Overload current, and be converted into the ac voltage signal of millivolt level, then by signal rectification, amplify and filtering obtains a direct current
Voltage, coordinates corresponding control circuit to perform loop to drive, to realize that timely tripping protection circuit reaches the mesh of overcurrent protection
's；Embedded real-time operating system is transplanted on arm processor, multi-task scheduling is realized, host computer is uploaded to by Ethernet, and
And by touch-screen human-computer interaction interface being locally displayed, such bi-processor architecture can by 32 arm processors and
Singlechip chip constitutes Slave Parallel processing system, and the management and communication to various peripheral hardwares, single-chip microcomputer are completed by arm processor
Data acquisition computing, two kinds of advantages of chip can be not fully exerted, high working efficiency.For the electricity of sensing detection
Current transformer uses high performance permalloy as the magnetic material of iron core, and feature is that have magnetic conduction higher under low-intensity magnetic field
Rate, this characteristic exceedes common ferrosilicon iron core even FERRITE CORE, to ensure current transformer output in certain scope
With good linear.The factor of system reliability is influenceed to be mainly circuit power frequency odd-multiple harmonic current, therefore filtration module is adopted
With one group of active low-pass filter, the wave filter mainly filters off odd harmonic AC compounent, then carries out ac-dc conversion treatment,
To ensure the correct operation of device.
MCU module as controller core component, including single-chip microcomputer, modulus conversion chip and data registration unit, mould
Number conversion chip is that the current signal after sampling by signal transacting is digitally converted, and is needed with the treatment for adapting to single-chip microcomputer
Will；Data registration unit is primarily referred to as FLASHROM, the subprogram code for storage enclosure in single-chip microcomputer, in running
In can not change.Display module includes digital-scroll technique unit, serial communication interface, human-machine interface unit and memory, and number is aobvious
Show unit for showing real-time voltage current data, be mainly made up of digital drive circuit and LED digital displays, serial communication interface is
Serial communication port is expanded using the MAX422 of MAXIM companies, data-transformation facility is realized；Man-machine interface circuit mainly completes defeated
Go out the setting of test voltage or test current, be the control panel for relying on single-chip microcomputer and connecting extension, it is possible to achieve to MCU module
The data pacing of module data register, memory uses band EEPROM EEPROM, for preserving use
User data, can change in running, it is possible to achieve the effect for voluntarily recording, it is possible to externally carry out data biography by port
It is defeated.Photovoltaic array plate is set on power module, and photovoltaic array plate connection battery can be by solar energy supply source, so as to increase
The continuation of system and environmental protection.
In order to realize the rapidity of data processing, technical grade singlechip chip is selected as the core processing of detection module
Device, the crystal oscillator of chip up to 40MHz, using 3.3V low supply voltages, the flash with 32K words, the RAM of 2.5K, 64K word journey
Sequence area, data field；With 40 independently programmable general purpose I/O；Serial communication modular（SCI）, 2 task manager EVA and
EVB；With 5 external interrupts, respectively power drives protection interruption, reset interrupt, non-maskable interrupts etc..Because its is built-in
10 A/D modular converters cannot meet power quality analysis the need for, it is necessary to external modulus conversion chip, expand 16 in outside
6 Channel Synchronous ADS8364 chips of position precision are simulated digital conversion, lift sampling precision.The data of singlechip chip
Register, can be connected by man-machine interface with display, data setting panel, and what reception data setting panel was input into adjusts
Value Data, and be put into MCU module, facilitate the data processing subprogram of MCU module called when algorithm is sampled.Wherein, MCU
Modular program includes main program, interrupt service subroutine, Interruption service subprogram, data processing subprogram, can adopt
It is designed with C language, and is packaged in the data storage of MCU module and conveniently directly invokes.Wherein, system main program is main
The initial work of completing port, timer, constant, variable and other amounts；Interrupt service subroutine is main according to data register
The overflow position state of device, judges whether data overflow, and interruption entrance subprogram is transferred to if overflowing；Interruption service subprogram
Main completion timing interrupts sampling task, and 1 ms carries out 1 treatment, and every time continuous 6 sampling, sampled result is stored in specified memory
Unit；Data processing subprogram mainly completes to seek statistical average, carries out data comparing, so that it is determined that accurate measurements；Data
Data input button in setting panel, including ' 0 ' to ' 9 ' ten Arabic numerals enter key, order button include confirmation,
Terminal profile, return, machine open/close, automatic detection etc..
Arm processor can use S3C1440 chips, and this is a processor based on ARM920T cores, using 16/32
Position risc processor, with external memory controller, lcd controller, 4 channel DMA controllers, triple channel UART, 2 passages
SPI, 2 tunnel full speed USB main equipment chips can transplant LINUX system and set up WEB server.Software development can be in monolithic
Realized using compilation and C language hybrid programming on machine IDE CCS；ARM performs the management and control of whole system, to
Single-chip microcomputer sends control command, it is desirable to pass various data and information back, and man-machine interaction part is used to realize intelligentized menu mode
Man-machine interface, facilitates administrative staff to inquire about Monitoring Data, with embedded Linux as Software Development Platform, using C and C Plus Plus
The application programs such as WEB server and QT are completed to develop.
Present apparatus zero-pressure rise realization be to rely on signal generating unit, including voltage regulation unit and respectively with the voltage stabilizing
Adjustable current signal generator, adjustable voltage signal generator and pulse voltage source that unit is connected, voltage regulation unit include
Bridge-type shaping circuit and two-stage amplifying circuit, wherein, it is resistance to by taking the pressure test performed by adjustable voltage signal generator as an example
Pressure experiment should meet requirement in GB/T 17215.211-2006, and test voltage answers approximate sine wave, frequency in 45Hz and
Between 65Hz, apply 1min.Generator capacity at least should be 500VA；Flashover, spark discharge should not occur in experiment and puncture existing
As.Flashover, spark discharge and punch-through should not occur in experiment.Voltage regulation unit can provide the stabilization of signal and amplify work(
Can, the adjustment of output test voltage is carried out in real time, increase adjustable extent and tuned sensitivities, it is optimal test effect.
Embodiment two
Portable zero-pressure lifting device, including equipment box body, set display module and output port on body, output port connects
Signal generating unit is connect, display module and signal generating unit are connected with controller respectively；Controller is arranged on body interior, control
Device processed includes MCU module and respectively connected detection module, filtration module.Signal generating unit include voltage regulation unit with
And adjustable current signal generator, adjustable voltage signal generator and the pulse voltage source being connected with voltage regulation unit respectively.
Voltage regulation unit includes bridge-type shaping circuit and two-stage amplifying circuit.MCU module includes singlechip chip and is connected thereto respectively
Modulus conversion chip, data registration unit.Detection module includes voltage transformer and current transformer, and current transformer is zero
Sequence current transformer, the core magnetism performance material of current transformer uses permalloy.Filtration module include arm processor with it is active
Low pass filter display module includes digital-scroll technique unit, and digital-scroll technique unit connects serial communication interface, man-machine interface respectively
Unit and memory, digital-scroll technique unit include data setting panel and LED display module, and data setting panel includes several
Data input button and order button.Power module is set on body, power module respectively with controller, display module, signal
Generating unit is connected.Power module includes photovoltaic array plate, and photovoltaic array plate connection battery, photovoltaic array version is arranged at body
Surface.Body upper part sets folding-type handle, and body bottom portion sets travel mechanism.Difference with embodiment one is：This
The folding-type handle outer surface of device sets anti-skidding lining, and passage and water-absorbing sponge layer are set on anti-skidding lining, can be used to prevent
Sliding operation, and sweat etc. can be in time absorbed, make operation easier to be comfortable.Travel mechanism is flexible adjustable, and its underpart is set
Roller, roller is the universal wheel with braking element.Travel mechanism is adjustable to stretch, in use can be according to work
Suitable height is configured as condition, its underpart sets roller, and roller is the universal wheel with braking element, such that it is able to logical
Crossing roller-coaster can conveniently shift the position of casing, and noiseless does not interfere with other people when mobile, and braking element can be with
From adjustable block rubber, wheel is fixed by its significant rubbing action.
Embodiment three
Portable zero-pressure lifting device, including equipment box body, set display module and output port on body, output port connects
Signal generating unit is connect, display module and signal generating unit are connected with controller respectively；Controller is arranged on body interior, control
Device processed includes MCU module and respectively connected detection module, filtration module.Signal generating unit include voltage regulation unit with
And adjustable current signal generator, adjustable voltage signal generator and the pulse voltage source being connected with voltage regulation unit respectively.
Voltage regulation unit includes bridge-type shaping circuit and two-stage amplifying circuit.MCU module includes singlechip chip and is connected thereto respectively
Modulus conversion chip, data registration unit.Detection module includes voltage transformer and current transformer, and current transformer is zero
Sequence current transformer, the core magnetism performance material of current transformer uses permalloy.Filtration module include arm processor with it is active
Low pass filter display module includes digital-scroll technique unit, and digital-scroll technique unit connects serial communication interface, man-machine interface respectively
Unit and memory, digital-scroll technique unit include data setting panel and LED display module, and data setting panel includes several
Data input button and order button.Power module is set on body, power module respectively with controller, display module, signal
Generating unit is connected.Power module includes photovoltaic array plate, and photovoltaic array plate connection battery, photovoltaic array version is arranged at body
Surface.Difference with embodiment one or two is：The present apparatus can also set long range radio transmissions unit, can be by remote
Journey wireless GPRS communication module is connected with the database of power control center, reading database code test parameter, and will experiment
Parameter is compared with canonical parameter, and according to the size of relative error, draws detection check form, and is given birth to by connecting form
Into unit, final experimental report is generated.Form conclusion can be divided into contrast scheme and analytical plan two parts, contrast scheme according to
The related data that testing standard draws, carries out standard analysis comparison, see whether Pass Test requirement；Analytical plan then provides analysis
As a result, corresponding error compensation scheme is provided, for follow-up test operation provides feasibility reference.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, the general technology people of this area
Member using the solution of the present invention it will be recognized that can also realize many optional embodiments.It is all in the spirit and principles in the present invention
Within any modification, equivalent and the improvement made etc., should be included within the scope of the present invention.
Claims (10)
1. portable zero-pressure lifting device, it is characterised in that：Including equipment box body, display module and defeated is set on the body
Exit port, the output port connects signal generating unit, the display module and the signal generating unit respectively with control
Device is connected；The controller is arranged on the body interior, and the controller includes MCU module and respectively connected inspection
Survey module, filtration module.
2. portable zero-pressure lifting device as claimed in claim 1, it is characterised in that：The signal generating unit includes voltage stabilizing
Unit and the adjustable current signal generator, adjustable voltage signal generator and the arteries and veins that are connected with the voltage regulation unit respectively
Rush voltage source.
3. portable zero-pressure lifting device as claimed in claim 2, it is characterised in that：The voltage regulation unit includes bridge-type shaping
Circuit and two-stage amplifying circuit.
4. portable zero-pressure lifting device as claimed in claim 1, it is characterised in that：The MCU module includes monolithic movement
Piece and respectively connected modulus conversion chip, data registration unit.
5. portable zero-pressure lifting device as claimed in claim 1, it is characterised in that：The detection module includes mutual induction of voltage
Device and current transformer, the current transformer are zero sequence current mutual inductor, and the core magnetism performance material of the current transformer is adopted
Use permalloy.
6. portable zero-pressure lifting device as claimed in claim 1, it is characterised in that：The filtration module includes ARM treatment
Device and active low-pass filter.
7. portable zero-pressure lifting device as claimed in claim 1, it is characterised in that：The display module includes digital-scroll technique
Unit, the digital-scroll technique unit connects serial communication interface, human-machine interface unit and memory, the digital-scroll technique list respectively
Unit includes data setting panel and LED display module, and the data setting panel includes several data input buttons and instruction
Button.
8. portable zero-pressure lifting device as claimed in claim 1, it is characterised in that：Power module is set on the body,
The power module is connected with the controller, the display module, the signal generating unit respectively.
9. portable zero-pressure lifting device as claimed in claim 8, it is characterised in that：The power module includes photovoltaic array
Plate, the photovoltaic array plate connects battery, and the photovoltaic array version is arranged at the body surface.
10. portable zero-pressure lifting device as claimed in claim 1, it is characterised in that：The body upper part sets collapsible
Handle, the body bottom portion sets travel mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611050066.7A CN106771420A (en) | 2016-11-25 | 2016-11-25 | Portable zero-pressure lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611050066.7A CN106771420A (en) | 2016-11-25 | 2016-11-25 | Portable zero-pressure lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106771420A true CN106771420A (en) | 2017-05-31 |
Family
ID=58912898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611050066.7A Pending CN106771420A (en) | 2016-11-25 | 2016-11-25 | Portable zero-pressure lifting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106771420A (en) |
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| CN105388889A (en) * | 2015-12-17 | 2016-03-09 | 镇江市高等专科学校 | Signal generator for pavement construction machinery product control system |
| CN105403740A (en) * | 2015-12-11 | 2016-03-16 | 桂林电子科技大学 | External control type signal generator |
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| CN2687689Y (en) * | 2003-12-26 | 2005-03-23 | 西南师范大学 | Portable signal generation calibrating instrument |
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Application publication date: 20170531 |