CN202141759U - Resistance measuring device capable of wireless signal communication transfer - Google Patents
Resistance measuring device capable of wireless signal communication transfer Download PDFInfo
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- CN202141759U CN202141759U CN 201020676644 CN201020676644U CN202141759U CN 202141759 U CN202141759 U CN 202141759U CN 201020676644 CN201020676644 CN 201020676644 CN 201020676644 U CN201020676644 U CN 201020676644U CN 202141759 U CN202141759 U CN 202141759U
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Abstract
The utility model discloses a resistance measuring device capable of wireless signal communication transfer. The resistance measuring device includes a hardware platform built with a precision analogue integrated circuit, a digital integrated circuit and a micro programming chip. The hardware platform realizes data exchange through an external data interface. All hardware modules of the hardware platform are connected mutually through a control switch circuit, so as to realize data interactive transfer.
Description
Technical field
The utility model relates to electronic information technical field, relates in particular to a kind of electric resistance measuring apparatus that satisfies wireless signal output.
Background technology
Electronic measuring instrument is widely used in all trades and professions at present; Various electronic surveying tasks are varied; Require the detection of electrons personnel to carry multiple electronic measuring instrument and reuse the electronic surveying value that records difference in functionality and application; The surveying instrument of simple function uses different instruments in a large number because of its function singleness correspondence causes measuring process, thereby causes the lengthy and tedious complicacy of testing staff's measurement procedure, carries in the process inconvenient.
Current testing tool about electric power and safety aspect all is a simple function mostly, and needs to measure a plurality of functions in the actual measurement, is not simple function; The intact insulation of the survey that has will be surveyed conducting, survey ground connection; Also want survey time road and line resistance, function of every like this survey just needs a different instrument, just causes measurement loaded down with trivial details; Carry inconvenience, it is high to measure cost, the low many problems of storage that wait of efficiency of measurement.
The utility model content
The purpose of the utility model is to provide a kind of electric resistance measuring apparatus that satisfies wireless signal output; With insulation measurement, conducting low-resistance measurement, grounding resistance measurement, loop resistance measurement, line resistance measurement, voltage measurement and the integrated realization of frequency measurement, and through each function control of software and hardware cooperation realization.
For effectively solving the problems of the technologies described above; The technical scheme that the utility model is taked is following: a kind of electric resistance measuring apparatus that satisfies wireless signal communication transmission; This device comprises the hardware platform that accurate Analogous Integrated Electronic Circuits, digital integrated circuit and little process chip make up; Said hardware platform is realized exchanges data through external data interface, and all hardware module of said hardware platform interconnects through the control transformation circuit and realizes the data interaction transmission.
Said software platform also comprises intelligent control module, data acquisition module, data memory module and the data processing module that is used for function control, and realizes the data interaction transmission through the analog and digital signal passage.
The hardware of said hardware platform constitute comprise analogue measurement module, function selecting module, analog-to-digital conversion module, Logic control module, D/A converter module, memory module, LCD display module, communication module, by key processing module and MPU processing module.
The functional module of said software platform comprises insulation measurement module, conducting low-resistance measurement module, grounding resistance measurement module, loop resistance measurement module, line resistance measurement module, voltage measurement module and frequency measurement module.
The beneficial effect of the utility model is following: hardware platform overall design that the utility model provides realizes intelligence operation and simplified measurement operation, has characteristics such as intellectuality, integrated, software implementation; Programming moduleization, functionalization make it be easy to transplant, revise and expansion; The said apparatus multifunction of the utility model is integrated, and an instrument can be used for accomplishing multinomial measuring task, the simplified measurement process; Abundant communication interface can carry out the data upload download and can connect the PRN device printout; Enclosure designs completely cuts off interference source, possesses the Automatic Anti-interference function, guarantees the accuracy of measurement result; The multinomial function selecting pattern of instrument is equivalent to the integrated use of many instruments, and is easy to carry and with low cost, can effectively carry out electric system maintenance and power equipment testing; The integrated realization insulation measurement of the software platform that the utility model provides, conducting low-resistance measurement, grounding resistance measurement, loop resistance measurement, line resistance measurement, voltage measurement and frequency measurement function; Effectively solve the lengthy and tedious complicacy of testing staff's measurement procedure, carry in the process inconvenient.
Below in conjunction with accompanying drawing the utility model is elaborated.
Description of drawings
Fig. 1 is the hardware configuration synoptic diagram of the said device of the utility model;
Fig. 2 is the software flow synoptic diagram of the said method of the utility model;
Fig. 3 is that the said method software platform of the utility model makes up and functional task scheduling synoptic diagram.
Embodiment
Referring to Fig. 2 and Fig. 3, a kind of many resistance measurement methods that satisfy wireless signal output, this method may further comprise the steps:
(1) accurate Analogous Integrated Electronic Circuits and digital circuit are set and link to each other with little process chip respectively and make up data passage and digital display circuit, other is provided with decoding chip and provides communication interface to link to each other with the built-in data integration module of said little process chip;
(2) ASH: judge test function and provide measurement required simulating signal that said simulating signal is through the logic control output after decoding processing under the embedded system pattern of said decoding chip through said little process chip;
(3) digital signal processing: the analog-to-digital conversion module that becomes required simulating signal to provide through said decoding chip the analog signal conditioner that generates after the digital-to-analog conversion is digital signal with analog signal conversion and implements logic control;
(4) data communication output: said data integration module receives and handles simulating signal and the digital signal and the classification of all outputs, and control figure signal and simulating signal get into the unlike signal transmission channel after the said communication interface identification signal kind;
(5) measurement data output: handling measurement result through said step (4) can directly show output with digital signal form, and connection PC can guide simulating signal on terminal device, to read the realization measurement function with communication modes behind the terminal.
Said step (1) is further comprising the steps of: analogue measurement module, function selecting module, analog-to-digital conversion module, Logic control module, D/A converter module, memory module, LCD display module, communication module are set, directly link to each other with said little process chip by key processing module and MPU processing module; Said function selecting module is provided with insulation measurement, conducting low-resistance measurement, grounding resistance measurement, loop and line resistance measurement, voltage measurement, seven functional modules of frequency measurement, and said digital display circuit is provided with the Based Intelligent Control, data acquisition, data storage, the data processing module that are used for function control that directly links to each other with said function selecting module in addition.
Said step (2) is further comprising the steps of: said analogue measurement module provides each item functional measurement required simulating signal; Make the signal that gets into data acquisition module meet the analog to digital converter requirement; And being transferred to digital display circuit, data system is responsible for embedded OS operation, instrument algorithm, ASH, logic control output; Said Logic control module is with other Digital Circuit Control, thereby the analog back-end that said signal output module is simulated analog-digital chip with the internal signal input produces required simulating signal.
Said step (3) is further comprising the steps of: said digital signal provides the metadata cache path when in said digital circuit, transmitting; After digital signal shows output; The reverse transmission of digital signal in the cache path generates simulating signal and direct election and selects new signal transmission passage logic control output and change the analog signal transmission passage over to after D/A converting circuit is handled again; Directly show output with the form of simulating signal through communication interface control, Communication Control satisfies two kinds of result's outputs of same functional measurement.
Said step (4) is further comprising the steps of: measurement function realizes that the back is through the functional select switch setting; Refresh LCD display mode and other corresponding setting; After the user starts measurement, measure safety inspection earlier, do not meet the measurement safety requirements if work as precondition; Then withdraw from the measurement state, and the prompting user; If when precondition coincidence measurement safety requirements, then carry out corresponding functional modules, then digital signal is carried out computing, processing, sent LCD to show measurement result at last and communicate by letter with host computer.
The many resistance measurements standard parameter value and the measurement range that realize in the present embodiment are following:
Insulation measurement: applied voltage is in the megger test: 250V/500V/1000V; Measuring current (during short circuit):＞2mA; Measurement range: 10K Ω～2000M Ω; Measuring accuracy: ± (5%+5).
Conducting small resistance measurement: about applied voltage DC5.0V; Measuring current when 0.00～2.00 Ω measuring current greater than 200mA; Measurement range is 0.05～2000 Ω; Measuring accuracy: ± (5%+5).
Grounding resistance measurement: measuring current 3.2mA (max), test specification: 0～2000 Ω; Measuring accuracy: ± (3%+3).
Loop resistance measurement: applied voltage: 230V ± 10%/45Hz～65Hz; Measuring current and test duration: 20A/20ms; Measurement range: 0.05～2000 Ω; Measuring accuracy: ± (5%+5).
Line resistance is measured: applied voltage: 230V ± 10%/45Hz～65Hz; Measuring current and test duration: 20A/20ms; Measurement range: 0.05～2000 Ω; Measuring accuracy: ± (5%+ 5).
Ac voltage measurement: measurement range: 0～600V/45～65Hz; The ac voltage measurement precision: ± (3%+3), dc voltage measurement scope: 0～750V; The dc voltage measurement precision: ± (2%+3).
Frequency measurement: measurement range: 45～1KHz; Frequency measurement accuracy: ± (1%+2).
Referring to Fig. 1, a kind of measurement mechanism of realizing said method, this device comprise hardware platform and the software platform that accurate Analogous Integrated Electronic Circuits, digital integrated circuit and little process chip make up; Said software platform comprises; Intelligent control module, data acquisition module, data memory module, data processing module and a plurality of functional module; Said hardware platform interconnects the realization exchanges data through external data interface and said software platform; The all hardware module of said hardware platform interconnects the realization exchanges data through the control transformation circuit, and all modules of said software platform realize the data interaction transmission through the analog and digital signal passage.
Said software platform also comprises intelligent control module, data acquisition module, data memory module and the data processing module that is used for function control, and realizes the data interaction transmission through the analog and digital signal passage.
The hardware of said hardware platform constitute comprise analogue measurement module, function selecting module, analog-to-digital conversion module, Logic control module, D/A converter module, memory module, LCD display module, communication module, by key processing module and MPU processing module.
The functional module of said software platform comprises insulation measurement module, conducting low-resistance measurement module, grounding resistance measurement module, loop resistance measurement module, line resistance measurement module, voltage measurement module and frequency measurement module.
The technology path that function realizes in the present embodiment is following:
1, adopting accurate Analogous Integrated Electronic Circuits, digital circuit and little process chip to make up process chip makes up hardware platform and adopts MPU AM/BAM system development mode construction software platform;
2, the hardware of said hardware platform constitutes analogue measurement module, function selecting module, analog-to-digital conversion module, Logic control module, D/A converter module, memory module, LCD display module, communication module, button processing and MPU processing module etc.; Said software platform is divided into insulation measurement, conducting low-resistance measurement, grounding resistance measurement, loop and line resistance by test function and measures (auxiliary voltage and frequency measurement module) seven functional modules, also comprises Based Intelligent Control, data acquisition, data storage, data processing module.After said hardware platform and software platform cooperation realization are judged test function, just carry out collection of simulant signal, computing, data processing, at last measurement result is shown output or passes through communication interface and PC communication through LCD.
3, said analogue measurement module provides each item functional measurement required simulating signal, makes the signal that gets into function selecting module meet the analog to digital converter requirement; Said function selecting module is that MPU switches to the function corresponding passage through decoding chip; Said analog-to-digital conversion module is to be data-signal with analog signal conversion, and passes to MPU; Said MPU control & processing system modules is to be responsible for embedded OS operation, digital signal processing, logic control output etc.; Said D/A converter module is to convert the digital signal that MPU exports to simulating signal; Said analog back-end module is that the analog signal conditioner that generates after the digital-to-analog conversion is become required simulating signal; Said LCD shows, button is handled and communication interface modules is controlled the LCD demonstration respectively, button input, processing and the control of interface communication function, and power module provides power supply for the other system hardware module.
4, each measurement function is realized refreshing LCD display mode and other corresponding setting, after the user starts measurement through the setting of function selecting (knob) switch; Measure safety inspection earlier; If, then withdraw from the measurement state when precondition does not meet the measurement safety requirements, and the prompting user; If when precondition coincidence measurement safety requirements, then carry out corresponding functional modules, then digital signal is carried out computing, processing, sent LCD to show measurement result at last and communicate by letter with host computer.
The utility model is not limited to above-mentioned embodiment, and all employings and the utility model analog structure and method thereof realize that all embodiments of the utility model function are all within the protection domain of the utility model.
The utility model is not limited to above-mentioned embodiment, and all employings and the utility model analog structure realize that all embodiments of the utility model function are all within the protection domain of the utility model.
Claims (2)
1. one kind is satisfied the electric resistance measuring apparatus that the wireless signal communication is transmitted; It is characterized in that; This device comprises the hardware platform of realizing exchanges data through external data interface, and this hardware platform comprises through the interconnective accurate Analogous Integrated Electronic Circuits of control transformation circuit, digital integrated circuit and little process chip.
2. measurement mechanism according to claim 1; It is characterized in that, the hardware of said hardware platform constitute comprise analogue measurement module, function selecting module, analog-to-digital conversion module, Logic control module, D/A converter module, memory module, LCD display module, communication module, by key processing module and MPU processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020676644 CN202141759U (en) | 2010-12-23 | 2010-12-23 | Resistance measuring device capable of wireless signal communication transfer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020676644 CN202141759U (en) | 2010-12-23 | 2010-12-23 | Resistance measuring device capable of wireless signal communication transfer |
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| CN202141759U true CN202141759U (en) | 2012-02-08 |
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| CN 201020676644 Expired - Lifetime CN202141759U (en) | 2010-12-23 | 2010-12-23 | Resistance measuring device capable of wireless signal communication transfer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510758A (en) * | 2015-11-27 | 2016-04-20 | 湖北三江航天红峰控制有限公司 | Device for low resistance conduction |
-
2010
- 2010-12-23 CN CN 201020676644 patent/CN202141759U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510758A (en) * | 2015-11-27 | 2016-04-20 | 湖北三江航天红峰控制有限公司 | Device for low resistance conduction |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 523808, No. 6, industrial North Road, Songshan hi tech Industrial Development Zone, Guangdong, Dongguan Patentee after: Uni-Trend Technology (China) Co., Ltd. Address before: 523808, Humen Town, Guangdong, Dongguan Patentee before: Uni-Trend Technology (China) Co., Ltd. |
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| CP03 | Change of name, title or address |
Address after: 523808 No. 6 industrial North Road, Songshan Lake high tech Industrial Development Zone, Dongguan, Guangdong Patentee after: Uno Technology (China) Limited by Share Ltd Address before: 523808 No. 6 industrial North Road, Songshan Lake high tech Industrial Development Zone, Dongguan, Guangdong Patentee before: Uni-Trend Technology (China) Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120208 |
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| CX01 | Expiry of patent term |