CN101539605A - Electronic measurement method based on IP core and electronic measurement instrument - Google Patents
Electronic measurement method based on IP core and electronic measurement instrument Download PDFInfo
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Abstract
The invention provides an electronic measurement method based on an IP core, comprising an electronic measurement instrument and an electronic measurement integration instrument which is provided with a data acquisition system, an intelligent analog circuit, a communication interface, a visual graphical interface and a signal processing software for achieving insulation resistance measurement, voltage measurement and conduction measurement; the method comprises the steps of arranging an embedded type LINUX operating system kernel and an instrument embedded type software design platform; arranging an instrument operating interface development platform and a digital platform development kit; arranging a hardware system of a programmable logic device to achieve SOPC by programming and various user IP cores; arranging the data acquisition system, the intelligent analog circuit, the communication interface, the visual graphical interface and the signal processing software; and connecting the electronic measurement instrument with the detected electrical equipment, initiating and then starting after electrifying, and respectively and selectively realizing one functions of insulation resistance measurement, voltage measurement or conduction measurement according to needs. The invention also provides an electronic measurement instrument for achieving the method.
Description
Technical field
The present invention relates to the electronic surveying field, relate in particular to electronic measuring method and electronic gauge based on IP kernel, whether good, whether power supply the three-in-one multifunctional electronic gauge measured of normal electronic measuring method and a kind of insulation, conducting and supply voltage that is used for electric system if more relating to a kind of insulation and conducting that detects electric equipment.
Background technology
Instrument and meter is the source and the ingredient of information industry, and its development level is the important embodiment of national science and technology level and overall national strength.Electronic measuring instrument is used the wideest the widest, and no matter national economy all departments are improvement of manufacturing line, the update of old product, and the exploitation of new product all be unable to do without the support of electronic measuring instrument.The electronic surveying field discloses a lot of electronic measuring methods based on different principle and different purposes, nowadays along with the fast-developing electric equipment of China's power industry is preventative the important step that ensures in safe operation of power system and the maintenance work, effectively the conduction of detecting instrument or material needs efficiently succinct electronic measuring method with insulation and power supply state thereof, more needs a kind of diverse in function, simple in structure and easy to operate electronic measuring instrument.
China electronic measuring instrument market has become one of electronic measuring instrument market of potentialization in the world.Looked forward to the future several years, because the great demand that China's economic development forms, the home market of electronic measuring instrument will be the high speed development of the trend of high speed development, particularly Digital Television and Communications Market, makes China's electronic measuring instrument industry faces great challenge and opportunity.
At present, various electronic measuring methods can be realized and by equipment or the material tests of instrument application in different needs, when needs carry out multinomial electronic surveying, need choose the various different electronic measuring instruments of difference in functionality, can't be integrated in different functional measurements on a kind of instrument, make its measuring process more loaded down with trivial details, bring a lot of inconvenience, and the surveying instrument of a plurality of simple functions not only involves great expense but also carries inconvenience to measurement.
Summary of the invention
At above shortcomings in the prior art, the present invention for address the above problem provide a kind of can be simultaneously to insulation resistance, voltage and conducting measuring method for measuring, the present invention also provides a kind of three-in-one multifunctional electronic gauge.
The present invention is that to solve the problems of the technologies described above the technical scheme that is adopted as follows:
A kind of electronic measuring method based on IP kernel, it comprises an electronic gauge, it comprises the steps:
(1) flush type LINUX operating system nucleus and instrument Embedded Software Design platform are set in described electronic gauge;
(2) instrumentation interface development platform and digital platform development kit are set in described electronic gauge;
(3) hardware system and the user's IP kernel that the programmable logic device (PLD) programming realizes SOPC is set in described electronic gauge;
(4) data acquisition system (DAS), artificial intelligence circuit, communication interface, visualized graphs interface and signal processing software are set in described electronic gauge;
(5) described electronic gauge is connected detected electric equipment, energising back initialization is also enabled, and selects to realize one of insulation measurement, voltage measurement or conducting measurement function as required respectively.
Described step (5) wherein specifically comprises the steps:
(A) insulation measurement: the requirement of withstand voltage according to equipment under test or measured material produces an Insulation test voltage, be added on the measured object with this voltage, reading flow is crossed the leakage current on the measured object again, and built-in then ohm theorem algorithm computation goes out the insulation resistance resistance; Described Insulation test voltage electronic formula high direct voltage realizes that with Switching Power Supply maximum exportable 1000V, short-circuit current are 2mA; Its insulation measurement value must show that 4 bit value and simulated pointer show minimum 10x6CM size at LCD; The range ability of described insulation measurement is: 100V:0.1M Ω-500M Ω, 250V:0.5M Ω-2G Ω, 500V:1M Ω-4G Ω, 1000V:2M Ω-10G Ω; The range short-circuit current of described insulation measurement is about 2mA; All insulation measurement accuracy ratings are: 0.1M Ω to 100M Ω: 3%+5,100M Ω to 10G Ω: 5%+5.
(B) voltage measurement: described input impedance value is 10M Ω; Described attenuation network attenuation multiple is 10000 times; It is measured sampling and is finished by set 16 ADC that form the single-chip microcomputer of described hardware system; The range ability of described voltage measurement is: the ACV:30V-750V frequency is 50/60Hz; DCV:30V-1000V; All voltage measurement accuracy ratings are: ± (2%+3), specifically comprise dc voltage measurement and ac voltage measurement:
(a) dc voltage measurement is to transfer to LCD display demonstration output by sending into behind input impedance and the attenuation network after described hardware system sampling is calculated;
(b) ac voltage measurement is to transfer to LCD display after the single-chip microcomputer sampling is calculated and show output by becoming to send into behind the direct-flow signal voltage through the mean value rectification module again behind input impedance and the attenuation network;
(C) conducting is measured: i.e. low-resistance measurement, selected conducting measuring voltage is added on the measured object, and with one accurately measuring resistance remove its shared voltage of branch, calculate conducting resistance according to intrinsic standoff ratio; Described conducting measuring voltage is to utilize the 3.3V single-chip microcomputer voltage supplied of internal system after conversion; Described conducting resistance range ability: 0.1 Ω-1000 Ω; The conducting resistance precision is: ± (1%+3).
Above-mentioned steps (A)-(C) in no particular order.
A kind of electronic gauge of realizing above-mentioned electronic measuring method based on IP kernel, it comprises an Insulation test crocodile clip, battery, power source special adapter and a table body, described table surface on one's body is provided with viewing area, high pressure caution zone and control area, the built-in power supply of described table body, a MCU and a plurality of functional control module; Described a plurality of functional control module comprises an electronic surveying module, a high pressure generation module, a function handover module and an A/D modular converter; Wherein said electronic surveying module links to each other with described MCU after being connected to the A/D modular converter by the function handover module; Described MCU and described high pressure generation module directly link to each other with described power supply; Described power supply and described a plurality of functional control module are connected to described MCU by various change-over circuits and control circuit.
The external case of described table body is connected with data transmission link by various circuit with the built-in electronic element; Described MCU comprises I/O configuration, programmable logic device (PLD) and data-carrier store, and is connected with spi bus by the I2C bus.
Described programmable logic device (PLD) plug-in Control Software and mimic channel; Described mimic channel comprises data acquisition module, signal output module, Digital Logic test module and communication interface modules.
A LCD display is equipped with in described viewing area; The LED high pressure output warning lamp that two color separations show is equipped with in described high pressure caution zone; Described control area is provided with a supervisory keyboard.
Described supervisory keyboard comprises function shift key, voltage options button, power switch key and night vision photoswitch key; It is connected with built-in each functional control module by connecting circuit respectively.
Beneficial effect of the present invention is: its overall design 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; Instrument of the present invention is multi-functional integrated, and an instrument can be used for finishing multinomial measuring task, the simplified measurement process; The numeral Presentation Function fully shows measures exact value and variation range thereof, and the security warning indication effectively prevents to exceed the dangerous surveying work of safe range; Possess the Automatic Anti-interference function, guarantee 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; Have the reliability and the confidentiality of height, high in technological content, reduce product design cycle, design and production cost greatly; But the composite design of cutting has powerful network operation function.
Below in conjunction with accompanying drawing to the detailed description of the invention;
Description of drawings
Fig. 1 is an electronic measuring method software flow block diagram of the present invention.
Fig. 2 is that three-in-one multifunctional electronic gauge hardware unit of the present invention connects block diagram.
Embodiment
Adopt the (SuSE) Linux OS Fedora Core 4 of new generation (linux kernel version 2.6) of Red hat company as built-in Linux operating system kernel and instrument Embedded Software Design platform about electronic gauge development of the present invention in the present embodiment, utilization Qt/Embedded exploitation instrumentation interface, programmable logic device (PLD) is selected Cyclone II (FPGA) family chip and MAXII (CPLD) family chip of ALTERA company for use, select " Altera CycloneII version DSP development kit " exploitation digital platform for use, hardware system and the various user's IP kernel of utilization Quartus II 6.1 software design SOPC, the software systems of utilization Nios II IDE development environment design SOPC, utilization VHDL writes the hardware bottom layer drive software, under the ADS1.2 development environment,, finish the PCB design with PROTEL DXP with C language development tests microprocessor software.
Referring to Fig. 1, a kind of electronic measuring method based on IP kernel, it comprises an electronic gauge, it comprises the steps:
(1) flush type LINUX operating system nucleus and instrument Embedded Software Design platform are set in described electronic gauge;
(2) instrumentation interface development platform and digital platform development kit are set in described electronic gauge;
(3) hardware system and the user's IP kernel that the programmable logic device (PLD) programming realizes SOPC is set in described electronic gauge;
(4) data acquisition system (DAS), artificial intelligence circuit, communication interface, visualized graphs interface and signal processing software are set in described electronic gauge;
(5) described electronic gauge is connected detected electric equipment, energising back initialization is also enabled, and selects to realize one of insulation measurement, voltage measurement or conducting measurement function as required respectively.
Described step (5) wherein specifically comprises the steps:
(A) insulation measurement: the requirement of withstand voltage according to equipment under test or measured material produces an Insulation test voltage, be added on the measured object with this voltage, reading flow is crossed the leakage current on the measured object again, and built-in then ohm theorem algorithm computation goes out the insulation resistance resistance; Described Insulation test voltage electronic formula high direct voltage realizes that with Switching Power Supply maximum exportable 1000V, short-circuit current are 2mA; Its insulation measurement value must show that 4 bit value and simulated pointer show minimum 10x6CM size at LCD; The range ability of described insulation measurement is: 100V:0.1M Ω-500M Ω, 250V:0.5M Ω-2G Ω, 500V:1M Ω-4G Ω, 1000V:2M Ω-10G Ω; The range short-circuit current of described insulation measurement is about 2mA; All insulation measurement accuracy ratings are: 0.1M Ω to 100M Ω: 3%+5,100M Ω to 10G Ω: 5%+5.
(B) voltage measurement: described input impedance value is 10M Ω; Described attenuation network attenuation multiple is 10000 times; It is measured sampling and is finished by set 16 ADC that form the single-chip microcomputer of described hardware system; The range ability of described voltage measurement is: the ACV:30V-750V frequency is 50/60Hz; DCV:30V-1000V; All voltage measurement accuracy ratings are: ± (2%+3), specifically comprise dc voltage measurement and ac voltage measurement:
(a) dc voltage measurement is to transfer to LCD display demonstration output by sending into behind input impedance and the attenuation network after described hardware system sampling is calculated;
(b) ac voltage measurement is to transfer to LCD display after the single-chip microcomputer sampling is calculated and show output by becoming to send into behind the direct-flow signal voltage through the mean value rectification module again behind input impedance and the attenuation network;
(C) conducting is measured: i.e. low-resistance measurement, selected conducting measuring voltage is added on the measured object, and with one accurately measuring resistance remove its shared voltage of branch, calculate conducting resistance according to intrinsic standoff ratio; Described conducting measuring voltage is to utilize the 3.3V single-chip microcomputer voltage supplied of internal system after conversion; Described conducting resistance range ability: 0.1 Ω-1000 Ω; The conducting resistance precision is: ± (1%+3).
Above-mentioned steps (A)-(C) in no particular order.
Referring to Fig. 2, a kind of electronic gauge of realizing above-mentioned electronic measuring method based on IP kernel, it comprises an Insulation test crocodile clip, battery, power source special adapter and a table body, described table surface on one's body is provided with viewing area, high pressure caution zone and control area, the built-in power supply of described table body, a MCU and a plurality of functional control module; Described a plurality of functional control module comprises an electronic surveying module, a high pressure generation module, a function handover module and an A/D modular converter; Wherein said electronic surveying module links to each other with described MCU after being connected to the A/D modular converter by the function handover module; Described MCU and described high pressure generation module directly link to each other with described power supply; Described power supply and described a plurality of functional control module are connected to described MCU by various change-over circuits and control circuit.
The external case of described table body is connected with data transmission link by various circuit with the built-in electronic element; Described MCU comprises I/O configuration, programmable logic device (PLD) and data-carrier store, and is connected with spi bus by the I2C bus.
Described programmable logic device (PLD) plug-in Control Software and mimic channel; Described mimic channel comprises data acquisition module, signal output module, Digital Logic test module and communication interface modules.
A LCD display is equipped with in described viewing area; The LED high pressure output warning lamp that two color separations show is equipped with in described high pressure caution zone; Described control area is provided with a supervisory keyboard.
Described supervisory keyboard comprises function shift key, voltage options button, power switch key and night vision photoswitch key; It is connected with built-in each functional control module by connecting circuit respectively.
Originally be that instrument power source can or directly adopt 220V common frequency power network 12V direct supply after transformation with 8 No. 2 batteries among the embodiment; Instrumentation table body overall dimensions: 202mm (L) * 155mm (W) * 94mm (D).
The present invention is not limited to above-mentioned embodiment, and all employings and similar system structure of the present invention and method thereof realize all modes of the object of the invention, all within protection scope of the present invention.
Claims (10)
1. electronic measuring method based on IP kernel, it comprises an electronic gauge, it is characterized in that, it comprises the steps:
(1) flush type LINUX operating system nucleus and instrument Embedded Software Design platform are set in described electronic gauge;
(2) instrumentation interface development platform and digital platform development kit are set in described electronic gauge;
(3) hardware system and the user's IP kernel that the programmable logic device (PLD) programming realizes SOPC is set in described electronic gauge;
(4) data acquisition system (DAS), artificial intelligence circuit, communication interface, visualized graphs interface and signal processing software are set in described electronic gauge;
(5) described electronic gauge is connected detected electric equipment, energising back initialization is also enabled, and selects to realize one of insulation measurement, voltage measurement or conducting measurement function as required respectively.
2. the electronic measuring method based on IP kernel according to claim 1, it comprises an electronic gauge, it is characterized in that, described step (5) wherein specifically comprises the steps:
(A) insulation measurement: the requirement of withstand voltage according to equipment under test or measured material produces an Insulation test voltage, be added on the measured object with this voltage, reading flow is crossed the leakage current on the measured object again, and built-in then ohm theorem algorithm computation goes out the insulation resistance resistance;
(B) voltage measurement:
(a) dc voltage measurement is to transfer to LCD display demonstration output by sending into behind input impedance and the attenuation network after described hardware system sampling is calculated;
(b) ac voltage measurement is to transfer to LCD display after the single-chip microcomputer sampling is calculated and show output by becoming to send into behind the direct-flow signal voltage through the mean value rectification module again behind input impedance and the attenuation network;
(C) conducting is measured: i.e. low-resistance measurement, selected conducting measuring voltage is added on the measured object, and with one accurately measuring resistance remove its shared voltage of branch, calculate conducting resistance according to intrinsic standoff ratio;
Above-mentioned steps (A)-(C) in no particular order.
3. the electronic measuring method based on IP kernel according to claim 2 is characterized in that, wherein, (A) is further comprising the steps of for described step: described Insulation test voltage electronic formula high direct voltage, realize that with Switching Power Supply maximum exportable 1000V, short-circuit current are 2mA; Its insulation measurement value must show that 4 bit value and simulated pointer show minimum 10x6CM size at LCD; The range ability of described insulation measurement is: 100V:0.1M Ω-500M Ω, 250V:0.5M Ω-2G Ω, 500V:1M Ω-4G Ω, 1000V:2M Ω-10G Ω; The range short-circuit current of described insulation measurement is about 2mA; All insulation measurement accuracy ratings are: 0.1M Ω to 100M Ω: 3%+5,100M Ω to 10G Ω: 5%+5.
4. the electronic measuring method based on IP kernel according to claim 2 is characterized in that, wherein, (B) is further comprising the steps of for described step: described input impedance value is 10M Ω; Described attenuation network attenuation multiple is 10000 times; It is measured sampling and is finished by set 16 ADC that form the single-chip microcomputer of described hardware system; The range ability of described voltage measurement is: the ACV:30V-750V frequency is 50/60Hz; DCV:30V-1000V; All voltage measurement accuracy ratings are: ± (2%+3).
5. according to claim 2. the electronic measuring method based on IP kernel is characterized in that wherein, (C) is further comprising the steps of for described step: described conducting measuring voltage is to utilize the 3.3V single-chip microcomputer voltage supplied of internal system after conversion; Described conducting resistance range ability: 0.1 Ω-1000 Ω; The conducting resistance precision is: ± (1%+3).
6. electronic gauge of realizing claim 1 or 2 described electronic measuring methods based on IP kernel, it comprises an Insulation test crocodile clip, battery, power source special adapter and a table body, it is characterized in that, described table surface on one's body is provided with viewing area, high pressure caution zone and control area, the built-in power supply of described table body, a MCU and a plurality of functional control module; Described a plurality of functional control module comprises an electronic surveying module, a high pressure generation module, a function handover module and an A/D modular converter; Wherein said electronic surveying module links to each other with described MCU after being connected to the A/D modular converter by the function handover module; Described MCU and described high pressure generation module directly link to each other with described power supply; Described power supply and described a plurality of functional control module are connected to described MCU by various change-over circuits and control circuit.
7. electronic gauge according to claim 6 is characterized in that, the external case of described table body is connected with data transmission link by various circuit with the built-in electronic element; Described MCU comprises I/O configuration, programmable logic device (PLD) and data-carrier store, and is connected with spi bus by the I2C bus.
8. three-in-one multifunctional electronic gauge according to claim 7 is characterized in that, described programmable logic device (PLD) plug-in Control Software and mimic channel; Described mimic channel comprises data acquisition module, signal output module, Digital Logic test module and communication interface modules.
9. electronic gauge according to claim 6 is characterized in that a LCD display is equipped with in described viewing area; The LED high pressure output warning lamp that two color separations show is equipped with in described high pressure caution zone; Described control area is provided with a supervisory keyboard.
10. electronic gauge according to claim 9 is characterized in that, described supervisory keyboard comprises function shift key, voltage options button, power switch key and night vision photoswitch key; It is connected with built-in each functional control module by connecting circuit respectively.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004667A (en) * | 2010-12-03 | 2011-04-06 | 上海交通大学 | SOPC (system on programmable chip) software and hardware cooperative system based on Linux |
| CN102116800A (en) * | 2010-12-23 | 2011-07-06 | 优利德科技(中国)有限公司 | Multi-resistance measuring method for satisfying wireless signal output and measuring device |
| CN102116814A (en) * | 2010-12-23 | 2011-07-06 | 优利德科技(中国)有限公司 | Multifunction integrated electronic measurement method and device |
| CN103245837A (en) * | 2013-05-16 | 2013-08-14 | 优利德科技(中国)有限公司 | Insulation resistance measurement method supporting output volage of any point and measurement device |
| CN106405375A (en) * | 2016-08-31 | 2017-02-15 | 福建星网视易信息系统有限公司 | Multipath resistance and voltage testing method, device and system |
| CN110926797A (en) * | 2019-12-10 | 2020-03-27 | 航天新长征大道科技有限公司 | Compact peripheral interconnection bus board card |
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2009
- 2009-04-30 CN CN2009101375329A patent/CN101539605B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004667A (en) * | 2010-12-03 | 2011-04-06 | 上海交通大学 | SOPC (system on programmable chip) software and hardware cooperative system based on Linux |
| CN102116800A (en) * | 2010-12-23 | 2011-07-06 | 优利德科技(中国)有限公司 | Multi-resistance measuring method for satisfying wireless signal output and measuring device |
| CN102116814A (en) * | 2010-12-23 | 2011-07-06 | 优利德科技(中国)有限公司 | Multifunction integrated electronic measurement method and device |
| CN103245837A (en) * | 2013-05-16 | 2013-08-14 | 优利德科技(中国)有限公司 | Insulation resistance measurement method supporting output volage of any point and measurement device |
| CN103245837B (en) * | 2013-05-16 | 2015-08-05 | 优利德科技(中国)有限公司 | A kind of insulation measurement method and measurement mechanism supporting arbitrfary point output voltage |
| CN106405375A (en) * | 2016-08-31 | 2017-02-15 | 福建星网视易信息系统有限公司 | Multipath resistance and voltage testing method, device and system |
| CN110926797A (en) * | 2019-12-10 | 2020-03-27 | 航天新长征大道科技有限公司 | Compact peripheral interconnection bus board card |
| CN110926797B (en) * | 2019-12-10 | 2021-07-06 | 航天新长征大道科技有限公司 | Compact peripheral interconnection bus board card |
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| CN101539605B (en) | 2012-05-09 |
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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: 523925, Humen Town, Guangdong, Dongguan Patentee before: Uni-Trend Technology (China) Co., Ltd. |
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