CN101042813B - Intelligent digital experiment system - Google Patents
Intelligent digital experiment system Download PDFInfo
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- CN101042813B CN101042813B CN200610155712A CN200610155712A CN101042813B CN 101042813 B CN101042813 B CN 101042813B CN 200610155712 A CN200610155712 A CN 200610155712A CN 200610155712 A CN200610155712 A CN 200610155712A CN 101042813 B CN101042813 B CN 101042813B
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- master controller
- digital experiment
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Abstract
This invention relates to one intelligent experiment system, which comprises display screen, computer, bus power, bus controller on the control circuit, two power modules, USB interface on the bus controller, memory, I2C bus and intelligent sensor through multi-core terminal and I2C bus, wherein, the bus controller collects data from sensor to process data and to display the test signals through screen for storage for output through USB.
Description
Technical field
The present invention relates to a kind of intelligent digital experiment system, be applicable to the system of measuring various signal datas, comprising: the test macro of electric current, voltage, air pressure, power, magnetic field, temperature and light intensity etc.
Background technology
In the past, in the laboratory in middle school, be to do experiment with discrete experimental apparatus, measure a kind of data, change a kind of instrument, not only test dumb convenience, and the experiment place can only be limited in the laboratory also.(formerly in the technology) at present, a kind of digital experiment system has appearred in the laboratory, but it is lower that it exists the measurement essence, man-machine exchange more complicated, do not possess portable off-line test function, perhaps the running time is short during off-line, and memory space is lower and less with computer interface, measures problems such as inconvenience.
Summary of the invention
The purpose of this invention is to provide a kind of intelligent digital experiment system, can overcome the problem that exists in the above-mentioned technology formerly.
The technical solution used in the present invention is: a kind of intelligent digital experiment system is provided, comprise: display screen, computing machine, total power supply, the operation circuit that is connected with computing machine with display screen respectively, place the master controller on the operation circuit, be connected in the USB interface between master controller and the computing machine, be connected to storer, I on the master controller
2C bus and analog photoelectricity coupling mechanism are with I
2The multicore terminal that the C bus is connected places two power modules that are connected with total power supply on the operation circuit, is connected to the intelligence sensor on the multicore terminal.
Described intelligence sensor comprises: be connected to the sensor controller that has the multiway interface on the multicore terminal, be connected to the signal conditioning circuit on the multicore terminal, the measured signal input source that is connected with signal conditioning circuit.
As above-mentioned structure of the present invention, when using experimental system of the present invention, computing machine sends instruction by USB interface to master controller, simultaneously, with the corresponding intelligence sensor of want measurement data, such as measuring air pressure signal, just intelligent baroceptor is inserted on the multicore terminal, signal conditioning circuit in the intelligence sensor receives the measured signal from measured signal input source (can be and the corresponding common baroceptor of measured signal " air pressure "), and its measured signal is normalized to the unified standard signal as 0～5V, this standard signal is by multicore terminal and I
2The C bus, be input into master controller, master controller is converted to digital signal with its voltage analog signal, and through after calculating comparison, with the digital signal of net result be converted to the signal value that requires to measure such as magnitude of voltage, current value, atmospheric pressure value, force value, temperature value, light intensity value etc., again this measurement result is presented on the display screen, and is stored in the storer or outputs on the computing machine by USB interface, or printing etc.In the sensor controller that comprises in the described intelligence sensor, store the identity information of sensor, self check information, check information, check codes etc. can online detection and on-line debugging.
Aforesaid experimental system effect of the present invention is remarkable.
● as above-mentioned structure, because comprise the master controller that places on the operation circuit in the present invention, it can finish the various demonstrations of wanting measuring-signal, storage and output;
● the present invention is because by the multicore terminal, can insert multiple intelligence sensor simultaneously, and intelligence sensor can really be realized plug and play;
● the present invention is because comprise the analog photoelectricity coupling mechanism that is connected on the master controller, and it can isolate out the interference from the simulating signal on the power module, makes the measured signal value of its master controller output more accurate, and measuring accuracy is higher;
● the present invention comprises sensor controller because what adopt is intelligence sensor in the intelligence sensor, can the detecting line sensor operation conditions, online detection, debugging formerly can self-correcting, by calibration and compensation, can make the precision of sensor improve more than 10%;
● Zong the present invention places two power modules that are connected with power supply on the operation circuit because of comprising, even these two power modules disconnect with total power supply, also can power for a long time to experimental system independently, keeps the operation of pilot system;
● in sum, experimental system of the present invention is simple in structure, can make portable experimental system, contain USB interface and computing machine is easy to connect, contain the multicore terminal, easy to connect with intelligence sensor, so the place that the present invention uses is extensive, not only is limited in the laboratory and uses.
Description of drawings
Fig. 1 is the structural representation of experimental system of the present invention;
Fig. 2 is the structural representation of intelligence sensor among Fig. 1.
Embodiment
Further below in conjunction with accompanying drawing, architectural feature of the present invention is described.
As shown in Figure 1, experimental system of the present invention comprises: display screen 1, computing machine 3, total power supply 5, the operation circuit 2 that is connected with computing machine 3 with display screen 1 respectively, place the master controller 201 in the operation circuit 2, be connected in the USB interface between master controller 201 and the computing machine 3, be connected to storer 203, I on the master controller 201
2 C bus 204 and analog photoelectricity coupling mechanism 206 are with I
2The multicore terminal 205 that the C bus connects places first power module 207, the second source module 208 that are connected with total power supply 5 in the operation circuit 2, the intelligence sensor 4 that is connected with multicore terminal 205.
Fig. 2 is the structural representation of intelligence sensor 4 among Fig. 1.As shown in Figure 2, intelligence sensor 4 comprises: be connected to the sensor controller that has multiway interface 401 402 on the multicore terminal 205, be connected to the signal conditioning circuit 404 on the multicore terminal 205, the measured signal input source 403 that is connected with signal conditioning circuit 404.
Described measured signal input source 403, when intelligence sensor 4 was intelligent current sensor, when promptly measured signal was current signal, measured signal input source 403 can be the current-voltage conversion circuit that is connected on the tested current signal input source.Be input in the signal conditioning circuit 404 after by this current-voltage conversion circuit current signal being transformed into voltage signal, its voltage signal is normalized to 0～5V;
When intelligence sensor 4 is intelligent voltage sensor, be that measured signal is when being voltage signal, measured signal input source 403 can be the bleeder circuit that is connected on the tested voltage signal source, the tested voltage signal that to import by this bleeder circuit is divided into needed magnitude of voltage, is input in the signal conditioning circuit 404 again and is normalized to 0～5V;
When intelligence sensor 4 is when measuring signal such as air pressure, pressure, magnetic field, temperature, light intensity, measured signal input source 403 and measured signal corresponding (common) sensor, corresponding with described measured signal is baroceptor, pressure transducer, magnetic field sensor, temperature sensor, light intensity sensor etc., by common sensor measured signal is converted to be input in the signal conditioning circuit 404 behind the voltage signal to be normalized to 0～5V.
In the present embodiment, described sensor controller 402 and master controller 201 all are the singlechip chips that contains mixed signal that has the embedded A/D converter of various ports.In the present embodiment, be the C8051F series mixed signal SOC singlechip chip that adopts Silicon Laboratories, adopt the mixed signal SOC singlechip chip of C8051F06x series more specifically.The C8051F family chip all has abundant port resource, for example: ports such as I2C, SPI, UART, PCA, embedded 16 A/D, very easy to use; Have the JTAG debug port simultaneously, can realize online detection, on-line debugging; It contains high-frequency clock, can effectively improve the reaction velocity of system; Chip power-consumption is lower, is fit to the exploitation portable product.Adopt this chip to significantly reduce the peripheral circuit of system, also improved the stability of system greatly, and provided cost savings, chip piece just can be saved 300 yuan of costs (Renminbi).
In the present embodiment, display screen 1 adopts the alternating interface between man and computer easily of big screen LCD and touch-screen constructing system.Rich display information, convenient to operation, the off-line test function operations abundant for system provides good platform.
In the present embodiment, storer 203 adopts the high capacity FLASH storer, can store the data that off-line is gathered.The data content of storage is abundant, comprises measuring number of times, data such as experiment place, experimental period and measurement data.Can realize multichannel data acquisition and storage.
In the present embodiment, total power supply 5 adopts jumbo lithium polymer battery and more advanced energy-conservation mechanism, the test duration that can improve the system off-line state greatly, makes the system standby time above 10 hours.
In the present embodiment, USB interface 202 adopts USB2.0 interface at a high speed, finishes and the communicating by letter of computing machine, and has solved original like product and has adopted RS232 communication interface transfer rate lower, interface uses not general problem, and the viability of product is increased greatly.
In the present embodiment, adopt the insulating power supply structure, comprise two power modules 207,208, realize that the sensor power supply (first power module 207) and the power supply (second source module 208) of master controller isolate fully, prevented that controller is subjected to the impact of circuit-under-test power supply and fluctuation of service.
In the present embodiment, analog photoelectricity coupling mechanism 206 adopts HCNR200 analog photoelectricity coupling mechanism, and this is to have adopted the simulating signal interrupter, realizes the isolation fully with simulating signal.Prevent of the impact of the simulating signal of sensor to controller.
In the present embodiment, multicore terminal 205 adopts 10 unified transmission simulation of core S terminal and digital signals.Interface between intelligence sensor and the multicore terminal 205 adopts I in the present embodiment
2The C bus is passed through I
2The C bus connects master controller and intelligence sensor.I
2The identity information of C bus transmission intelligence sensor, self check information, check code etc. also have the calibration information of each intelligence sensor and the coefficient of penalty function etc.By these information that characterizes intelligence sensor, intelligence sensor can be realized real plug and play, and by calibration and compensation, can improve the measuring accuracy of intelligent sensor more than 10%.
Claims (8)
1. intelligent digital experiment system, comprise display screen, computing machine, total power supply, it is characterized in that comprising: the operation circuit that is connected with computing machine with display screen respectively, place the master controller on the operation circuit, be connected in the USB interface between master controller and the computing machine, be connected to storer, I on the master controller
2C bus and analog photoelectricity coupling mechanism are with I
2The multicore terminal that the C bus is connected places two power modules that are connected with total power supply on the operation circuit, is connected to the intelligence sensor on the multicore terminal; A power supply as intelligence sensor in described two power modules, another is as the power supply of master controller.
2. intelligent digital experiment system according to claim 1, it is characterized in that described intelligence sensor comprises: be connected to the sensor controller that has the multiway interface on the multicore terminal, be connected to the signal conditioning circuit on the multicore terminal, the measured signal input source that is connected with signal conditioning circuit.
3. intelligent digital experiment system according to claim 2 is characterized in that when intelligence sensor is intelligent current sensor, and described measured signal input source is the current-voltage conversion circuit that is connected on the tested current signal input source.
4. according to the described intelligent digital experiment system of claim 2, it is characterized in that when intelligence sensor is intelligent voltage sensor that described measured signal input source is the bleeder circuit that is connected on the tested voltage signal source.
5. intelligent digital experiment system according to claim 2 is characterized in that described measured signal input source is and the corresponding sensor of measured signal.
6. intelligent digital experiment system according to claim 5 is characterized in that described and the corresponding sensor of measured signal is a baroceptor, or pressure transducer, or magnetic field sensor, or temperature sensor, or light intensity sensor.
7. intelligent digital experiment system according to claim 2 is characterized in that described sensor controller is the singlechip chip that contains mixed signal that has the embedded A/D converter of various ports.
8. intelligent digital experiment system according to claim 1 is characterized in that described master controller is the singlechip chip that contains mixed signal that has the embedded A/D converter of various ports.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200610155712A CN101042813B (en) | 2006-12-31 | 2006-12-31 | Intelligent digital experiment system |
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| CN200610155712A CN101042813B (en) | 2006-12-31 | 2006-12-31 | Intelligent digital experiment system |
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| CN101042813A CN101042813A (en) | 2007-09-26 |
| CN101042813B true CN101042813B (en) | 2010-05-19 |
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| CN200610155712A Expired - Fee Related CN101042813B (en) | 2006-12-31 | 2006-12-31 | Intelligent digital experiment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544347A (en) * | 2017-09-29 | 2018-01-05 | 武汉理工大学 | A kind of multi-channel digital TT＆C system based on I2C buses |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101290607B (en) * | 2008-05-31 | 2010-06-16 | 青岛海信电器股份有限公司 | Chip debugging interface device |
| CN103983379A (en) * | 2014-04-11 | 2014-08-13 | 东莞市捷科自动化设备有限公司 | Multifunctional portable elastic force tester |
| CN105139730A (en) * | 2015-09-20 | 2015-12-09 | 兴化市成顺消防科技研究院有限公司 | Vacuum tube photoelectric effect experimental demonstration instrument |
| DE102016111672A1 (en) * | 2016-06-24 | 2017-12-28 | Harting Electric Gmbh & Co. Kg | Interface module, system with an interface module and method for coupling data buses |
| CN107145058A (en) * | 2017-06-16 | 2017-09-08 | 浙江胜昔信息科技有限公司 | One kind digitlization dotted timer |
| CN108877429A (en) * | 2018-08-29 | 2018-11-23 | 苏州市格致科教仪器设备制造有限公司 | A kind of hydrodynamics comprehensive experimental device |
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| CN2096735U (en) * | 1991-06-29 | 1992-02-19 | 西安矿业学院 | Multi-way displacement automatic searching and surveying instrument |
| CN2510830Y (en) * | 2001-12-10 | 2002-09-11 | 李子才 | Multi-purpose electronic temperature-humidity voice-alarming monitor |
| CN2715114Y (en) * | 2004-05-13 | 2005-08-03 | 戴戈 | Multifunctional handheld intelligent virtual instrument |
| CN200986437Y (en) * | 2006-11-28 | 2007-12-05 | 李彩珍 | Digitalized experiment system |
| CN200990158Y (en) * | 2006-12-31 | 2007-12-12 | 李彩珍 | Intelligent digital experimental apparatus |
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- 2006-12-31 CN CN200610155712A patent/CN101042813B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2096735U (en) * | 1991-06-29 | 1992-02-19 | 西安矿业学院 | Multi-way displacement automatic searching and surveying instrument |
| CN2510830Y (en) * | 2001-12-10 | 2002-09-11 | 李子才 | Multi-purpose electronic temperature-humidity voice-alarming monitor |
| CN2715114Y (en) * | 2004-05-13 | 2005-08-03 | 戴戈 | Multifunctional handheld intelligent virtual instrument |
| CN200986437Y (en) * | 2006-11-28 | 2007-12-05 | 李彩珍 | Digitalized experiment system |
| CN200990158Y (en) * | 2006-12-31 | 2007-12-12 | 李彩珍 | Intelligent digital experimental apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107544347A (en) * | 2017-09-29 | 2018-01-05 | 武汉理工大学 | A kind of multi-channel digital TT＆C system based on I2C buses |
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| CN101042813A (en) | 2007-09-26 |
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