CN2775765Y - Portable environment parameter collector - Google Patents

Portable environment parameter collector Download PDF

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Publication number
CN2775765Y
CN2775765Y CN 200420115833 CN200420115833U CN2775765Y CN 2775765 Y CN2775765 Y CN 2775765Y CN 200420115833 CN200420115833 CN 200420115833 CN 200420115833 U CN200420115833 U CN 200420115833U CN 2775765 Y CN2775765 Y CN 2775765Y
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China
Prior art keywords
interface
circuit board
power supply
chip
button
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Expired - Fee Related
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CN 200420115833
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Chinese (zh)
Inventor
王成
赵春江
乔晓军
杨宝祝
张馨
焦春岩
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Beijing Research Center for Information Technology in Agriculture
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Beijing Research Center for Information Technology in Agriculture
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Priority to CN 200420115833 priority Critical patent/CN2775765Y/en
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Abstract

The utility model belongs to the technical field of a measurement instrument, particularly a portable environment parameter collector. The utility model comprises a plastic instrument box (1), a surface sticking film (2), a press key clamp base (3), a conductive rubber press key (4), a wireless interface (5), a general purpose interface transition opening (6), a keyboard interface (7), a liquid-crystal display interface (8), a power supply processing module (9), a JTAG interface (10), an RS232 communication interface circuit (11), an LCD liquid-crystal display LCMO67 (12), a general purpose digital simulation signal acquisition opening (13), a main control circuit plate (14), a control module (15) composed of an MSP43OF149 single-chip microcomputer and a peripheral circuit thereof, a button cell (16), an antenna (17), a wireless module circuit plate (18), a circuit plate, a fixing opening of an instrument box, a screw (19), a power supply switch (20), three No. 5 cells, a cell base (21), a press key circuit plate (22) and a wireless module core circuit (23). The utility model can be used for the acquisition, the measurement and the computation to a digital signal, a standard simulation signal and a frequency signal of a sensor in a plurality of fields.

Description

Portable environment parameter acquisition instrument
Technical field:
The utility model belongs to the surveying instrument field, and the collection that can be used for multi-field digital signal to sensor, standard analog signal, frequency signal is measured and calculated.
Background technology
At present the portable instrument to the measurement of environmental parameter in use has following problem: 1, function singleness, can only measure one or both parameters, and when going out measurement Research, bring inconvenience.2, use sensor to fix, be difficult for changing, its serviceable life is limited.3, the instrument that can measure multiparameter is mostly introduced from foreign country, costs an arm and a leg, and cost is very high, is unfavorable for promoting.4, the number of sensors of Lian Jieing, kind is fixed, and can't adjust according to user's demand.5, do not have wireless transmission function, cannot carry out wireless telecommunications and Long-distance Control measurement with host computer.6, the storage data volume is few, does not much have the data hold function, can only gather demonstration in real time, can not store data so that research.7, on power supply was handled, the battery service efficiency was lower, the battery working time of failing fully to prolong, and power consumption is big during work measurement simultaneously, can not in time close obsolete function.8, do not have automatic arousal function, measure automatically.
Summary of the invention
The purpose of this utility model is to release a kind of general digital collection of simulant signal mouth that has, and can change sensor according to different needs, simultaneously various environmental parameters is measured, have wired and wireless transmission function, can easily with PC communication, Long-distance Control.Can wake automatic measurement automatically up, have the above data space of 32KB, adopt special-purpose power supply processing module, effective power supply command function has the portable environment parameter acquisition instrument of long working time.
Portable environment parameter acquisition instrument is by plastic instrument box (1), surface pad pasting (2), button deck (3), conductive rubber button (4), wave point (5), general-purpose interface converting interface (6), keyboard interface (7), LCD interface (8), power supply processing module (9), jtag interface (10), RS232 communication interface circuit (11), LCD liquid crystal display LCM067 (12), general digital collection of simulant signal mouth (13), master control circuit board (14), the control module (15) that constitutes by MSP430F149 single-chip microcomputer and peripheral circuit thereof, button cell (16), antenna (17), wireless module circuit board (18), circuit board, instrument box fixing port and screw (19), power switch (20), No. 5 batteries of three joints and battery tray (21), button circuit board (22), wireless module core circuit (23) is common to be formed; Surface pad pasting (2), button deck (3), conductive rubber button (4), button circuit board (22) are assembled into the upper surface of plastic instrument box (1); Wave point (5), general-purpose interface converting interface (6), keyboard interface (7), LCD interface (8), power supply processing module (9), jtag interface (10), RS232 communication interface circuit (11), the control module (15) that constitutes by MSP430F149 single-chip microcomputer and peripheral circuit thereof, button cell (16) is welded on the master control circuit board (14), master control circuit board (14) is fixed on the inside of plastic instrument box (1) with screw, the top that LCD liquid crystal display LCM067 (12) is stuck in plastic instrument box (1) shows that mouth is corresponding with the transparent part of pad pasting, antenna (17), wireless module circuit board (18) is bonded at the top of plastic instrument box (1), below the LCD liquid crystal display LCM067 (12); Wireless module circuit board (18), LCD liquid crystal display LCM067 (12), button circuit board (22) link to each other with the corresponding interface of master control circuit board (14) by cable; General digital collection of simulant signal mouth (13) and general-purpose interface converting interface (6) welding are to accept extraneous data; Power switch (20), No. 5 batteries of three joints and battery tray (21) are installed in the back (seeing Fig. 1,2,3) of plastic instrument box (1).
Partly by RS232 interface, the linear power supply NCP500SN33 output 3.3V voltage of single-chip microcomputer MSP430F149, clock chip PCF8556, data-carrier store iron storer FM25L256, LCD liquid crystal display LCM067, MAX3221 expansion, boosted switch power supply chip NCP1400ASN50T1 provides 5V voltage, level conversion device 74LVC4248, multi-way switch CD74HC4051, analog switch MAX4599, operational amplifier OPA2348 and is that the button cell that clock chip is powered is separately formed jointly the main control circuit of portable environment parameter acquisition instrument; Wireless module is made up of chip nRF401, gain antenna, antennal interface; The software of MSP430F149 and inside thereof is as the control core of total system, the synchronous serial interface of iron storer and single-chip microcomputer (SPI) 1 joins, the RS232 network interface is connected on the MSP430F149 asynchronous serial port (UART) 1 by extended chip, wireless module then connects the asynchronous serial port 2 of single-chip microcomputer, digital signal is linked on the MSP430F149 through level conversion device 74LVC4245, simulating signal is received analog switch MAX4599 to operational amplifier through multi-way switch CD74HC4051, receive the A/D conversion input port of single-chip microcomputer at last, the control communication port of other chip all directly links to each other with MSP430F149.NCP500SN33 and NCP1400ASN50T1 provide power supply for system and external sensor.(see figure 4)
Single-chip microcomputer is selected the super low power consuming single chip processor MSP430F149 of Texas Instrument (TI) for use, and 60KFlash is arranged in the sheet, and enough programming spaces are arranged, and can the storage of collected data; The Asynchronous Serial Interface that two full duplexs are arranged, serial ports 1 uses MAX3221 to be extended to the RS232 interface, realizes and the data transmission of PC that serial ports 2 links to each other with wireless module, realizes wireless data transmission; 12 A/D converters are arranged, can change the simulated data of gathering; The comparer of single-chip microcomputer inside is realized the monitoring to cell voltage; Its inner capture ratio can realize measurement to frequency than timer.Iron storer FM25L256 has realized data storage at a high speed, and low in energy consumption, erasable number of times is up to hundred million times.Real-time clock PCF8563 provides time reference for system, can follow according to the value of setting image data and regularly deposit data-carrier store in, also can wake single-chip microcomputer up simultaneously and gather automatically.74LVC4245 is used for level dress between 5V system and the 3V system is changed, and makes the digital collection interface can handle the digital signal of the sensor of 3.3V and 5V power supply simultaneously.Enter by analog switch MAX4599 and operational amplifier OPA2348 after simulating signal is switched through multi-way switch CD74HC4051 and switch enlargement factor, send into the A/D conversion input port of single-chip microcomputer at last.Insert different sensors by universal digital interface with analog interface, carry out data acquisition and conversion.Man-machine interface is provided with the time by liquid crystal LCM067,5 * 4 quick buttons, routine call, and the parameter setting, image data shows, display power supply situation etc.Adopt No. 5 powered battery of three joints, provide 3.3V voltage by linear power supply NCP500SN33, the boosted switch power supply chip NCP1400ASN50T1 provide 5V voltage.Chip is selected the low-power consumption chip of 3.3V power supply for use, can close chip and enter low-power consumption mode when not using, thereby reach the prolongation battery-powered time.
The beneficial effects of the utility model:
1. can be as required emat sensor more at any time, can measure various environmental parameters simultaneously.
2. can accept processing digital signal, frequency signal, standard analog signal (voltage signal: 0~5V, 1~10V, current signal: 4~20mA, 0~10mA).
3. adopt RS232 and wireless module to transmit data, the wireless module transmission range can reach 300 meters, can realize the short distance Long-distance Control.
4. the Flash storer of single-chip microcomputer and extend out the iron storer and can be used for the storage of collected data.
5. have clock arousal function and automatic acquisition function.
6. employing low power dissipation design has the Power Supply Monitoring function, and the working time is long.
Description of drawings
Fig. 1 is an object construction front elevational schematic of the present utility model.
Fig. 2 is an object construction schematic side view of the present utility model.
Fig. 3 is the wireless module synoptic diagram.
Fig. 4 is that system of the present utility model forms structural representation.
Fig. 5 is a schematic diagram of the present utility model
Embodiment:
Portable environment parameter acquisition instrument is by plastic instrument box (1), surface pad pasting (2), button deck (3), conductive rubber button (4), wave point (5), general-purpose interface converting interface (6), keyboard interface (7), LCD interface (8), power supply processing module (9), jtag interface (10), RS232 communication interface circuit (11), LCD liquid crystal display LCM067 (12), general digital collection of simulant signal mouth (13), master control circuit board (14), the control module (15) that constitutes by MSP430F149 single-chip microcomputer and peripheral circuit thereof, button cell (16), antenna (17), wireless module circuit board (18), circuit board, instrument box fixing port and screw (19), power switch (20), No. 5 batteries of three joints and battery tray (21), button circuit board (22), wireless module core circuit (23) is common to be formed; Surface pad pasting (2), button deck (3), conductive rubber button (4), button circuit board (22) are assembled into the upper surface of plastic instrument box (1); Wave point (5), general-purpose interface converting interface (6), keyboard interface (7), LCD interface (8), power supply processing module (9), jtag interface (10), RS232 communication interface circuit (11), the control module (15) that constitutes by MSP430F149 single-chip microcomputer and peripheral circuit thereof, button cell (16) is welded on the master control circuit board (14), master control circuit board (14) is fixed on the inside of plastic instrument box (1) with screw, the top that LCD liquid crystal display LCM067 (12) is stuck in plastic instrument box (1) shows that mouth is corresponding with the transparent part of pad pasting, antenna (17), wireless module circuit board (18) is bonded at the top of plastic instrument box (1), below the LCD liquid crystal display LCM067 (12); Wireless module circuit board (18), LCD liquid crystal display LCM067 (12), button circuit board (22) link to each other with the corresponding interface of master control circuit board (14) by cable; General digital collection of simulant signal mouth (13) and general-purpose interface converting interface (6) welding are to accept extraneous data; Power switch (20), No. 5 batteries of three joints and battery tray (21) are installed in the back (seeing Fig. 1,2,3) of plastic instrument box (1).
Partly by RS232 interface, the linear power supply NCP500SN33 output 3.3V voltage of single-chip microcomputer MSP430F149, clock chip PCF8556, data-carrier store iron storer FM25L256, LCD liquid crystal display LCM067, MAX3221 expansion, boosted switch power supply chip NCP1400ASN50T1 provides 5V voltage, level conversion device 74LVC4248, multi-way switch CD74HC4051, analog switch MAX4599, operational amplifier OPA2348 and is that the button cell that clock chip is powered is separately formed jointly the main control circuit of portable environment parameter acquisition instrument; Wireless module is made up of chip nRF401, gain antenna, antennal interface; The software of MSP430F149 and inside thereof is as the control core of total system, the synchronous serial interface of iron storer and single-chip microcomputer (SPI) 1 joins, the RS232 network interface is connected on the MSP430F149 asynchronous serial port (UART) 1 by extended chip, wireless module then connects the asynchronous serial port 2 of single-chip microcomputer, digital signal is linked on the MSP430F149 through level conversion device 74LVC4245, simulating signal is received analog switch MAX4599 to operational amplifier through multi-way switch CD74HC4051, receive the A/D conversion input port of single-chip microcomputer at last, the control communication port of other chip all directly links to each other with MSP430F149.NCP500SN33 and NCP1400ASN50T1 provide power supply for system and external sensor.(see figure 4)
Single-chip microcomputer is selected the super low power consuming single chip processor MSP430F149 of Texas Instrument (TI) for use, and 60KFlash is arranged in the sheet, and enough programming spaces are arranged, and can the storage of collected data; The Asynchronous Serial Interface that two full duplexs are arranged, serial ports 1 uses MAX3221 to be extended to the RS232 interface, realizes and the data transmission of PC that serial ports 2 links to each other with wireless module, realizes wireless data transmission; 12 A/D converters are arranged, can change the simulated data of gathering; The comparer of single-chip microcomputer inside is realized the monitoring to cell voltage; Its inner capture ratio can realize measurement to frequency than timer.Iron storer FM25L256 has realized data storage at a high speed, and low in energy consumption, erasable number of times is up to hundred million times.Real-time clock PCF8563 provides time reference for system, can follow according to the value of setting image data and regularly deposit data-carrier store in, also can wake single-chip microcomputer up simultaneously and gather automatically.74LVC4245 is used for level dress between 5V system and the 3V system is changed, and makes the digital collection interface can handle the digital signal of the sensor of 3.3V and 5V power supply simultaneously.Enter by analog switch MAX4599 and operational amplifier OPA2348 after simulating signal is switched through multi-way switch CD74HC4051 and switch enlargement factor, send into the A/D conversion input port of single-chip microcomputer at last.Insert different sensors by universal digital interface with analog interface, carry out data acquisition and conversion.Man-machine interface is provided with the time by liquid crystal LCM067,5 * 4 quick buttons, routine call, and the parameter setting, image data shows, display power supply situation etc.Adopt No. 5 powered battery of three joints, provide 3.3V voltage by linear power supply NCP500SN33, the boosted switch power supply chip NCP1400ASN50T1 provide 5V voltage.Chip is selected the low-power consumption chip of 3.3V power supply for use, can close chip and enter low-power consumption mode when not using, thereby reach the prolongation battery-powered time.
Adopting No. 5 batteries of three joints to power to system through power supply processing module (9), power switch (20), make the MSP430F149 electrification reset, also is the external sensor power supply simultaneously.Linear power supply provides 3.3V power supply for system and wireless module, and the boosted switch power supply is that the level conversion and the external world provide 5V voltage.
The man-machine interface of forming by LCD liquid crystal display LCM067 (12), conductive rubber button (4).Can finish the setting of various parameters such as system date and time, connection sensor parameters, interface channel, drainage pattern, memory gap by man-machine interface.Data of gathering after setting is finished and system time can be on liquid crystal roll display.
The wireless module interface is made up of MSP430F149 control radio transmitting and receiving chip nRF401, and the data after by radio transmitting and receiving chip system being packed are transmitted by serial ports through certain time sequence.
Can directly link to each other by the RS232 mouth, carry out data transmission and analysis by upper computer software with PC.
General digital collection of simulant signal mouth (13) can connect different sensors, to digital signal, and frequency signal, standard analog signal is gathered.
By the control module (15) that MSP430F149 single-chip microcomputer and peripheral circuit thereof constitute, comprise that real time clock circuit, data storage circuitry, level shifting circuit, multichannel select then analog switching circuit, amplifying circuit etc.As the control core of total system, its control each several part circuit finish parameter setting, sensing data read conversion, time and date read differentiation, data storage, wired, tasks such as wireless telecommunications.

Claims (2)

1. portable environment parameter acquisition instrument, it is characterized in that by by plastic instrument box (1), surface pad pasting (2), button deck (3), conductive rubber button (4), wave point (5), general-purpose interface converting interface (6), keyboard interface (7), LCD interface (8), power supply processing module (9), jtag interface (10), RS232 communication interface circuit (11), LCD liquid crystal display LCM067 (12), general digital collection of simulant signal mouth (13), master control circuit board (14), the control module (15) that constitutes by MSP430F149 single-chip microcomputer and peripheral circuit thereof, button cell (16), antenna (17), wireless module circuit board (18), circuit board, instrument box fixing port and screw (19), power switch (20), No. 5 batteries of three joints and battery tray (21), button circuit board (22), wireless module core circuit (23) is common to be formed; Surface pad pasting (2), button deck (3), conductive rubber button (4), button circuit board (22) are assembled into the upper surface of plastic instrument box (1); Wave point (5), general-purpose interface converting interface (6), keyboard interface (7), LCD interface (8), power supply processing module (9), jtag interface (10), RS232 communication interface circuit (11), the control module (15) that constitutes by MSP430F149 single-chip microcomputer and peripheral circuit thereof, button cell (16) is welded on the master control circuit board (14), master control circuit board (14) is fixed on the inside of plastic instrument box (1) with screw, the top that LCD liquid crystal display LCM067 (12) is stuck in plastic instrument box (1) shows that mouth is corresponding with the transparent part of pad pasting, antenna (17), wireless module circuit board (18) is bonded at the top of plastic instrument box (1), below the LCD liquid crystal display LCM067 (12); Wireless module circuit board (18), LCD liquid crystal display LCM067 (12), button circuit board (22) link to each other with the corresponding interface of master control circuit board (14) by cable; General digital collection of simulant signal mouth (13) and general-purpose interface converting interface (6) welding are to accept extraneous data; Power switch (20), No. 5 batteries of three joints and battery tray (21) are installed in the back of plastic instrument box (1).
2. portable environment parameter acquisition instrument as claimed in claim 1, the main control circuit that it is characterized in that circuit part is by single-chip microcomputer MSP430F149, clock chip PCF8563, data-carrier store iron storer FM25L256, LCD liquid crystal display LCM067, the RS232 interface of MAX3221 expansion, the linear power supply NCP500SN33 of output 3.3V voltage, the boosted switch power supply chip NCP1400ASN50T1 of 5V voltage is provided, level conversion device 74LVC4248, multi-way switch CD74HC4051, analog switch MAX4599, operational amplifier OPA2348 and for clock chip separately the button cell of power supply form jointly; Wireless module is made up of chip nRF401, gain antenna, antennal interface; The software of MSP430F149 and inside thereof is as the control core of total system, the synchronous serial interface SPI 1 of iron storer and single-chip microcomputer joins, the RS232 network interface is connected on the MSP430F149 asynchronous serial port UART 1 by extended chip, wireless module then connects the asynchronous serial port 2 of single-chip microcomputer, digital signal is linked on the MSP430F149 through level conversion device 74LVC4245, simulating signal is received analog switch MAX4599 to operational amplifier through multi-way switch CD74HC4051, receive the A/D conversion input port of single-chip microcomputer at last, the control communication port of other chip all directly links to each other with MSP430F149, and NCP500SN33 and NCP1400ASN50T1 provide power supply for system and external sensor.
CN 200420115833 2004-11-30 2004-11-30 Portable environment parameter collector Expired - Fee Related CN2775765Y (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103134534A (en) * 2011-11-24 2013-06-05 上海辰昊信息科技有限公司 Meter head of wireless sensor
CN105588923A (en) * 2016-03-30 2016-05-18 澳门理工学院 Environment monitoring method and device based on environment monitoring instrument
CN105974848A (en) * 2016-06-28 2016-09-28 北京电子工程总体研究所 Universal configurable signal monitoring device
CN110164112A (en) * 2019-05-06 2019-08-23 山东远大朗威教育科技股份有限公司 Data terminal, sensor device and Digitized experimental system
WO2020042400A1 (en) * 2018-08-31 2020-03-05 武汉互创联合科技有限公司 Incubator data obtaining device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103134534A (en) * 2011-11-24 2013-06-05 上海辰昊信息科技有限公司 Meter head of wireless sensor
CN105588923A (en) * 2016-03-30 2016-05-18 澳门理工学院 Environment monitoring method and device based on environment monitoring instrument
CN105974848A (en) * 2016-06-28 2016-09-28 北京电子工程总体研究所 Universal configurable signal monitoring device
WO2020042400A1 (en) * 2018-08-31 2020-03-05 武汉互创联合科技有限公司 Incubator data obtaining device
CN110164112A (en) * 2019-05-06 2019-08-23 山东远大朗威教育科技股份有限公司 Data terminal, sensor device and Digitized experimental system

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