CN110412337A - A kind of telescopic current reading device - Google Patents
A kind of telescopic current reading device Download PDFInfo
- Publication number
- CN110412337A CN110412337A CN201910713516.3A CN201910713516A CN110412337A CN 110412337 A CN110412337 A CN 110412337A CN 201910713516 A CN201910713516 A CN 201910713516A CN 110412337 A CN110412337 A CN 110412337A
- Authority
- CN
- China
- Prior art keywords
- handheld terminal
- controller
- current reading
- microampere meter
- reading device
- 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
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229960001296 zinc oxide Drugs 0.000 claims abstract description 10
- 239000011787 zinc oxide Substances 0.000 claims abstract description 10
- 239000011521 glass Substances 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 206010014357 Electric shock Diseases 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/28—Undercarriages for supports with one single telescoping pillar
-
- 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
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
Abstract
The invention discloses a kind of telescopic current reading devices, including the microampere meter being serially connected between Zinc-Oxide Arrester and again pressure cylinder, microampere meter is connected to handheld terminal by IrDA infrared transceiver, handheld terminal is mounted at the top of expansion bracket, laser is installed, the emitting head of laser and handheld terminal read data direction towards identical on handheld terminal.The present invention is using expansion bracket installation handheld terminal and installation laser, convenient for accurately adjusting the direction of handheld terminal height and handheld terminal, handheld terminal is enabled to be accurately aimed at microampere meter, reading accuracy and reading efficiency are improved, measurement efficiency is improved, long-range handheld terminal is sent the reading remote of microampere meter to using IrDA infrared receiving/transmission, it realizes and long-range watches data, reading is watched more reliable, avoids Danger Electric shock risk caused by short distance, improves operational safety.
Description
Technical field
The present invention relates to a kind of telescopic current reading devices, belong to Zinc-Oxide Arrester test equipment technical field.
Background technique
With flourishing for urban construction, in order to meet the power demands increased increasingly, will increase every year a large amount of
Power supply route.As the electric equipment products that distribution line is damaged from overvoltage, Zinc-Oxide Arrester is with its excellent protection
Performance is widely applied in distribution line.According to national standard GB " electrical equipment commissioning test standard " requirement, the distribution oxygen newly installed
The pilot project for changing zinc arrester has: 1. ontology insulation resistance；2. under DC reference voltage and 0.75 times of DC reference voltage
Leakage current.Integrated testability block diagram as shown in Figure 1, zinc oxide arrester tester is first connected to a times pressure cylinder, connect by times pressure cylinder
One microampere meter is connected to Zinc-Oxide Arrester, since pressure cylinder again to Zinc-Oxide Arrester part belongs to higher-pressure region in test
Domain, so tester needs walk to the observation of farther away safety area progress microampere meter reading, farther out due to distance, in complexity
Under environment, the reading of microampere meter possibly can not be observed reliably.
Summary of the invention
The technical problem to be solved by the present invention is a kind of telescopic current reading device is provided, to solve in the prior art
There are the problem of.
The technical scheme adopted by the invention is as follows: a kind of telescopic current reading device, including it is serially connected in Zinc-Oxide Arrester
Microampere meter between pressure cylinder again, microampere meter are connected to handheld terminal by IrDA infrared transceiver, and handheld terminal is mounted on flexible
Top of the trellis, is equipped with laser on handheld terminal, and the emitting head of laser and handheld terminal read data direction towards identical.
Preferably, above-mentioned expansion bracket includes triangle foot prop, telescopic rod and erecting bed, and triangle foot prop is fixedly connected on telescopic rod
Bottom end, telescopic rod upper end are fixedly connected with erecting bed.
Preferably, magnifying glass is installed on the shell of above-mentioned microampere meter.
Preferably, the circuit of above-mentioned microampere meter includes current reading circuit, ADC converter, controller one and IrDA infrared
Transceiver module one, current reading circuit are connected to controller one by ADC converter, and controller one is connected with IrDA infrared receiving/transmission
Module one.
Preferably, above controller one is connected with display screen one.
Preferably, the circuit of above-mentioned handheld terminal includes IrDA infrared transceiver module two, controller two and display screen two,
IrDA infrared transceiver module two and display screen two are connect with controller.
Preferably, the circuit of the power management module of above-mentioned microampere meter and handheld terminal include the 9V battery being sequentially connected in series,
5V Voltage stabilizing module, switch and 5V turn 3.3V level switch module, and 5V turns 3.3V level switch module and is connected respectively to controller one
With controller two.
Beneficial effects of the present invention: compared with prior art, the present invention is swashed using expansion bracket installation handheld terminal and installation
Light device enables handheld terminal to be accurately aimed at microampere meter convenient for accurately adjusting the direction of handheld terminal height and handheld terminal,
It is time saving and energy saving to adjust alignment, improves reading accuracy and reading efficiency, improves measurement efficiency, using IrDA infrared receiving/transmission by microampere meter
Reading remote be sent to long-range handheld terminal, realize long-range data of watching, reading is watched more reliable, avoids closely leading
The Danger Electric shock risk of cause improves operational safety.
Detailed description of the invention
Fig. 1 is Zinc-Oxide Arrester test integrated testability block diagram；
Fig. 2 is testing principle block diagram of the invention；
Fig. 3 is Microampere meter circuit schematic illustration；
Fig. 4 is handheld terminal circuit theory schematic diagram；
Fig. 5 is power management module circuit diagram；
Fig. 6 is IrDA technology time diagram；
Fig. 7 is microampere meter acquisition data flowchart；
Fig. 8 is handheld terminal acquisition data flowchart.
Specific embodiment
With reference to the accompanying drawing and the present invention is described further in specific embodiment.
Embodiment: as shown in figures 1-8, a kind of telescopic current reading device, including be serially connected in Zinc-Oxide Arrester and times
Microampere meter between pressure cylinder, microampere meter are connected to handheld terminal by IrDA infrared transceiver, and the reading of microampere meter is red by IrDA
Outer transceiver, is sent on handheld terminal, and handheld device shows microampere meter current value on display screen two, handheld terminal installation
At the top of expansion bracket, laser is installed on handheld terminal, the emitting head and handheld terminal of laser read data direction direction
It is identical.
Preferably, above-mentioned expansion bracket includes triangle foot prop, telescopic rod and erecting bed, and triangle foot prop is fixedly connected on telescopic rod
Bottom end, telescopic rod upper end are fixedly connected with erecting bed, and erecting bed and the rotation of handheld terminal bottom connect, convenient for docking microampere after rotation
Table reduces installation difficulty.
Preferably, magnifying glass is installed on the shell of above-mentioned microampere meter, magnifying glass is installed, to shown on microampere meter data into
Row amplification, convenient for directly reading size of data on microampere meter.
Preferably, the circuit of above-mentioned microampere meter includes current reading circuit, ADC converter, controller one and IrDA infrared
Transceiver module one, current reading circuit are connected to controller one by ADC converter, and controller one is connected with IrDA infrared receiving/transmission
Module one, microampere meter data sending terminal general principles are as shown in figure 3, tested electric currentI XBy sampling resistorR s, produced at resistance both ends
Raw voltage, the analog voltage are admitted in the A/D converter that precision is 6bit by amplifier, and being converted into can be identified by single-chip microcontroller
Digital signal, then by infrared emission to handheld terminal, controller one is connected with display screen one.
Preferably, the circuit of above-mentioned handheld terminal includes IrDA infrared transceiver module two, controller two and display screen two,
IrDA infrared transceiver module two and display screen two are connect with controller, data receiver general principles such as Fig. 4 of handheld terminal
Shown, IrDA infrared transceiver (data of the reception IrDA infrared transceiver module one of IrDA infrared transceiver module two), which receives, to be come from
It is sent to after the data of microampere meter in two MCU of controller, two MCU of controller is transferred data in OLED display screen.
Preferably, the circuit of the power management module of above-mentioned microampere meter and handheld terminal include the 9V battery being sequentially connected in series,
5V Voltage stabilizing module, switch and 5V turn 3.3V level switch module, and 5V turns 3.3V level switch module and is connected respectively to controller one
With controller two, use 9V battery as power supply, after LDO pressure stabilizing, by switch, exports 5V direct current.Pass through 5V- again
3.3V level switch module is powered to PIC single chip microcomputer, and switch is controlled by single-chip microcomputer signal, in abnormal conditions or the specific finger of user
Under order, it can cut off the power in time.Entire power circuit block block diagram is as shown in Figure 5.
Controller one and controller two use single-chip microcontroller, and single-chip microcontroller has been widely used in industrial automatic control, automatic
Detection, Portable intellectual instrument, military affairs, aerospace, household electrical appliance, intelligent toy, power electronics, electromechanical integration are set
Standby equal fields so that no matter various product is from function, or from precision with and products thereof quality in terms of all significantly promoted,
Meanwhile the circuit of design is very simple, reliability is very high, the number of stoppages that occurs is lower, low in cost etc..PIC single chip microcomputer is
Product under Microchip house flag uses RISC(reduced instruction set computer to replace 51 single-chip microcontrollers as target), so far at 8
Comparable share is achieved in machine market.The good in anti-interference performance of PIC single chip microcomputer, reduced instruction set computer are easy to learn and easy to use, and support
IrDA technology, so controller one and controller two of the invention all selects PIC single chip microcomputer.
ADC converter uses ADS7865, and ADS7865 is a 12 double-channel analog/digital converters (ADC), and there are four tools
Fully differential or six pseudo-differential input channels are used for high-speed synchronous signal acquisition.The framework provides outstanding be total in 100kHz
Mould rejection.ADS7865 is encapsulated using TQFP-32.
Display screen one using 7.0 inches, 800*480 graphic dot matrix, 65K color the tangible liquid crystal display of super large, for showing
The menu instructions for testing information and user select information, and display screen two shows data using OLED display screen.
IrDA is infrared data association(infrared data association) english abbreviation, IrDA is red
External tapping is a kind of infrared and radio transport protocol and the wireless transmission interface based on the agreement.Infrared communication is half-duplex
Because part infrared light can be reflected back receiving end when transmitting terminal is sent, form interference, so can only be it is semiduplex,
Reception should be closed when sending, avoids receiving the data oneself sent out.Baud rate in 2.4~115.2kbps,
IrDA technology is the impulse modulation of 3/16 bit, or the impulse modulation using 1163 μ s of fixed width using pulsewidth.Data with
Serial asynchronous communication format is consistent, and it is synchronous that a frame character with start bit completes transmitting-receiving with stop position.One " 0 " with a light
Pulse indicates.IrDA technology timing is as shown in Figure 6.When serial ports sends 0, the pulse of infrared 3/16 width of output.Serial ports sends 1
When, no pulse.
As shown in fig. 7, the data acquisition flow of microampere meter: first instruction execution display screen, single-chip microcomputer timer internal
And the initialization of other chips or peripheral hardware, then start to carry out AD sampling by the voltage value of sampling resistor to discharge current,
Current value is shown on a display screen after single-chip microcontroller processing information, and instruction is sent by the IrDA module of PIC single chip microcomputer, then
Return to main program.
As shown in figure 8, the data acquisition flow of handheld terminal: the initialization of system being first carried out after booting, has initialized
The data that the infrared transmitting terminal of IrDA is waited after finishing, are handled, and be shown on OLED screen curtain after receiving, are then proceeded to
To interrupt next time.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Within protection scope of the present invention, therefore, protection scope of the present invention should be based on the protection scope of the described claims lid.
Claims (7)
1. a kind of telescopic current reading device, it is characterised in that: micro- between Zinc-Oxide Arrester and again pressure cylinder including being serially connected in
Pacify table, microampere meter is connected to handheld terminal by IrDA infrared transceiver, and handheld terminal is mounted at the top of expansion bracket, handheld terminal
On laser is installed, the emitting head of laser and handheld terminal read data direction towards identical.
2. a kind of telescopic current reading device according to claim 1, it is characterised in that: expansion bracket includes triangle foot
Frame, telescopic rod and erecting bed, triangle foot prop are fixedly connected on telescopic rod bottom end, and telescopic rod upper end is fixedly connected with erecting bed.
3. a kind of telescopic current reading device according to claim 1, it is characterised in that: installed on the shell of microampere meter
There is magnifying glass.
4. a kind of telescopic current reading device according to claim 1, it is characterised in that: the circuit of microampere meter includes electricity
Reading circuit, ADC converter, controller one and IrDA infrared transceiver module one are flowed, current reading circuit is connected by ADC converter
It is connected to controller one, controller one is connected with IrDA infrared transceiver module one.
5. a kind of telescopic current reading device according to claim 1, it is characterised in that: controller one is connected with display
Screen one.
6. a kind of telescopic current reading device according to claim 1 or 4, it is characterised in that: the circuit of handheld terminal
Including IrDA infrared transceiver module two, controller two and display screen two, IrDA infrared transceiver module two and display screen two with control
Device connection processed.
7. a kind of telescopic current reading device according to claim 1, it is characterised in that: microampere meter and handheld terminal
The circuit of power management module includes that the 9V battery being sequentially connected in series, 5V Voltage stabilizing module, switch and 5V turn 3.3V level switch module,
5V turns 3.3V level switch module and is connected respectively to controller one and controller two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910713516.3A CN110412337A (en) | 2019-08-02 | 2019-08-02 | A kind of telescopic current reading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910713516.3A CN110412337A (en) | 2019-08-02 | 2019-08-02 | A kind of telescopic current reading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110412337A true CN110412337A (en) | 2019-11-05 |
Family
ID=68365699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910713516.3A Pending CN110412337A (en) | 2019-08-02 | 2019-08-02 | A kind of telescopic current reading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110412337A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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-
2019
- 2019-08-02 CN CN201910713516.3A patent/CN110412337A/en active Pending
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191105 |
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