CN2779518Y - Multi-functional data collector - Google Patents
Multi-functional data collector Download PDFInfo
- Publication number
- CN2779518Y CN2779518Y CN 200420120422 CN200420120422U CN2779518Y CN 2779518 Y CN2779518 Y CN 2779518Y CN 200420120422 CN200420120422 CN 200420120422 CN 200420120422 U CN200420120422 U CN 200420120422U CN 2779518 Y CN2779518 Y CN 2779518Y
- Authority
- CN
- China
- Prior art keywords
- signal
- cpu
- interface
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to a multifunctional data collector, which comprises a CPU and a display screen and a keyboard which are correspondingly connected with the CPU, wherein one signal input terminal of the CPU is connected with a serial output interface of a multipath A/D converter, and the other signal input terminal of the CPU is connected with a digital signal interface; the CPU is connected with a memory by the bus manner; a plurality of input interfaces of the multipath A/D converter are correspondingly connected with one analog signal interface respectively. The utility model can not be limited by a sensor when collecting the farmland information. The utility model can simultaneously collect a sensing signal with different types and can also collect a small voltage signal, and moreover, has the favorable data storage ability. The utility model can flexibly exports the data and can also directly transmit the measured data to external processing equipment. The utility model has the advantages of portability, low cost, high reliability, stable operation and low power consumption. The multifunctional data collector is combined with a control system of an upper machine, which can realize the real-time monitoring and manages the growth of the farmland crops.
Description
Technical field
The utility model relates to a kind of multifunctional data acquiring device, particularly a kind of can obtain the multiple heat transfer agent data in farmland simultaneously and handle, store, to the multifunctional data acquiring device of outside device transmission.
Background technology
The research and development of technology for information acquisition, practical information sampling instrument and system integration technologies such as field-crop growing way, soil parameters, crop root zone microclimate, will be for upgrading traditional field-crop production run ladder of management, meticulous, scientifically utilize agricultural resource, save and drop into, improve output, reduce production costs and reduce the important guarantee effects of performance such as blindly dropping into the environmental consequence that causes and food security.
Current continuous application along with new and high technology, the collection of agricultural land information, storage, transmission and control and management will trend towards incorporate, integrated direction and develop.As field bus technique and Bluetooth technology being applied among the research and development of field crop production system information integration application technology, can make resulting integrated system advanced technology, make system obtain information such as the crop growing state that needs most, soil physical and chemical property in the best opportunity, support field crop production management aid decision making.
Also exist some defectives in the existing product, the most outstanding is exactly the limitation of data acquisition unit to the agricultural land information sensor.A lot of data acquisition units can only be gathered the transducing signal of one type of single channel or multichannel, such as gathering voltage signal or current signal.Though a small part can be gathered the voltage and current signal simultaneously, can not gather digital signal or big or small restricted to voltage signal.Be exactly the storage problem of data in addition.Because the amount of data acquisition is bigger, so must seek suitable storer, and derived data is flexibly accomplished easy to carryly, and this all is that existing product also needs perfect place.Therefore, when having voltage, electric current, digital signal simultaneously, some signal just can not be collected.If will gather these signals simultaneously, just need several data of different types collectors to work simultaneously, the material resources that so not only waste financial resources have also increased the difficulty that all data is gathered real-time processing.
The utility model content
The purpose of this utility model is to provide a kind of multifunctional data acquiring device at the existing defective of above-mentioned existing data acquisition product, this multi-channel data acquisition device can be gathered voltage signal, current signal and digital signal simultaneously, and data wireless can be transferred to external processing apparatus (host computer), and cost is low, the reliability height, stable, low in energy consumption.
For achieving the above object, the utility model adopts a kind of multifunctional data acquiring device, it comprises CPU and corresponding display screen that is connected with this CPU and keyboard, the signal input part of described CPU is connected with the serial output interface of a multi-channel a/d converter, and another signal input part of described CPU is connected with digital signal interface; Described CPU is connected with storer with bus mode; A plurality of input interfaces of described multi-channel a/d converter correspondence separately are connected with an analog signal interface.
Analog signal interface is used to connect the farmland sensor that output signal is a simulating signal; Digital signal interface is used to connect the farmland sensor that output signal is a digital signal.Multi-channel a/d converter is a digital signal with the analog signal conversion of input, the signal of all inputs calculation process by software in CPU changes the digital recording that can represent the various parameters in farmland into and can show by display, also can be stored in the storer.Keyboard is used for artificial setting, the intervention to the data gatherer process.
Multi-channel a/d converter can be the converter with 8 input/output interfaces, wherein have 7 input interfaces with its be respectively equipped with the current/voltage-converted circuit and be provided with switch between the analog signal interface of corresponding connection.When input signal is current signal, can signal type be changed by switch and current/voltage-converted circuit.
Have in the multi-channel a/d converter 1 input interface with its be provided with amplifying circuit between the analog signal interface of corresponding connection.This input interface is used for special input millivolt magnitude voltage signals.
In the technique scheme, be provided with serial expanded circuit between another signal input part of CPU and the digital signal interface; The serial i/o interface of CPU is connected with signal output module.Signal output module is a wireless signal transmitting module.Serial expanded circuit is used to expand the two-way serial line interface so that be connected communication with the two-way digital sensor simultaneously.Wireless signal transmitting module can be carried out long-distance transmissions in the wireless transmit mode with the digital recording that disposes.
As shown from the above technical solution, the utility model can not be subjected to the limitation of sensor when agricultural land information is gathered, can gather the dissimilar transducing signal of multichannel simultaneously, such as voltage signal, current signal and digital signal, can also gather the small voltage signal; The utlity model has the good data storage capacity, and derived data flexibly, accomplish easy to carry, measurement data directly can also be transferred to external processing apparatus in addition, and cost is low, the reliability height, stable, low in energy consumption, it is combined with upper computer control system, can realize the growth of real-time monitoring and management field-crop.
Below, also in conjunction with the accompanying drawings the utility model is described in further detail by specific embodiment.
Description of drawings
Fig. 1 provides the circuit block diagram of a preferred embodiment for the utility model;
Fig. 2 is circuit theory diagrams embodiment illustrated in fig. 1.
Embodiment
Fig. 1 is the schematic block circuit diagram of a preferred embodiment provided by the utility model, and it comprises CPU1 and corresponding display screen that is connected 2 with this CPU1 and keyboard 3.The signal input part of CPU1 is connected with the serial output interface of one 8 road A/D converter 4, and another signal input part of CPU1 is connected with digital signal interface 11.In 8 road A/D converters 4, have 7 input interfaces with its be provided with current/voltage-converted circuit 41 between the analog signal interface 12 of corresponding connection.Be equipped with Manual Transfer Switch in each current/voltage-converted circuit 41.CPU1 also is connected with storer 5 with bus mode, and this storer 5 is the CF card memory.
Have in 8 road A/D converters 41 input interface with its be provided with amplifying circuit 42 between the analog signal interface 12 of corresponding connection.This amplifying circuit 42 is used for amplifying at being input as a millivolt magnitude voltage signals, to adapt to the calculation process of CPU1.
Between another part signal input part of CPU1 and digital signal interface 11, also be provided with serial expanded circuit 13.The serial i/o interface of CPU1 is connected with wireless signal transmitting module 6.
In the foregoing description, can import 10 tunnel sensor informations simultaneously altogether, wherein 8 the tunnel is the input of simulating signal, and 2 the tunnel is the input of digital signal.1 the tunnel is mV magnitude voltage signals input in 8 tunnel simulating signals, and all the other 7 tunnel inputs both can be that the input of 0～5V voltage signal also can be the input of 0～20mA current signal, and what select its input by switch is voltage signal or current signal.The mV magnitude voltage signals zooms into the V magnitude voltage signals by filtering and second amplifying circuit; Current signal also is 0～5V voltage signal after conversion.Through carrying out analog to digital conversion after these processing.
Two ways of digital signals mainly is to be input in the CPU single-chip microcomputer by standard 232 serial ports in addition, because CPU single-chip microcomputer itself is only with a serial ports and be used for the communication of wireless signal transmission circuit and host computer, so expanded two-way serial port and digital sensor communication by a serial ports expansion chip.The CPU single-chip microcomputer is controlled the serial ports expansion chip with bus mode and serial ports expansion chip interface by read-write, and sensor information is read in the single-chip microcomputer.
Display adopts LCD, it combines with keyboard realizes that visual keyboard is made up of 16 buttons, is respectively: numeral 0～9, definite (ENTER), withdraw from (ESC), shutdown/radix point (OFF/.), transducer calibration function switching/LCD backlight open and close (I U/BL).LCD adopts 122*32B graphical dots configuration, and one page can show seven half-words of two row.Can realize sampling time, the setting of passage input and the input of each transducer calibration function parameter by operation keyboard, and in conjunction with display, make one step of every operation all can on liquid crystal, show, and make corresponding prompt, the real effect of visualization that reaches.
The CF card memory has solved the problem of memory space and data derivation.CF card (Compact FlashCard) is a kind of normal component that has comprised controller and high capacity flash memory, have that capacity is big, volume is little, high-performance, advantage such as easy to carry, can be widely used in many consumer electronics products such as portable computer, digital camera, the digital audio tape.In occasions such as data acquisition, speech processes, often to preserve a large amount of field datas, when memory capacity reaches tens000000 even during hundreds of million, the selection of memory just becomes distinct issues, need to consider all many-sides such as cost, volume, reliability, power consumption, data, security, if adopt RAM or EEPROM, can be subjected to the restriction of all many-sides such as printed board area, microprocessor addressing space, power consumption, thereby if adopt flicker storage card (CompactFlash Card) a kind of effective solution of can yet be regarded as.And computing machine can read the data of storing in the CF card by card reader.
The wireless transmission of data adopts STR-10 type micropower type wireless data transmission module, DC power supply, voltage 5.0V.Communication channel is semiduplex, is suitable for the communication mode of point-to-multipoint most, also can be used for point-to-point communication.Its emissive power is low, and antijamming capability is strong, and the bit error rate is low, long transmission distance.Maximum transmission distance can reach more than the 500m.
Fig. 2 is the circuit theory diagrams of above-mentioned preferred embodiment.Among the figure, the AT89S51 single-chip microcomputer that CPU adopts American ATMEL to produce, this chip not only has the fundamental characteristics of MCS51 series monolithic, and chip integration becomes to have the electro erasible programmable storer (EEPROM) of 4K byte, price is low, one of singlechip chip that the present ratio of performance to price is higher.Oscillatory circuit adopts single-chip microcomputer internal oscillator and external quartz crystal to constitute, and crystal oscillation frequency is elected 11.0592MHz as.
The input channel treatment circuit mainly is to be the voltage signal that is converted to of current signal with input in the data acquisition unit, 1 road mV step voltage small-signal constitutes second amplifying circuit by LM358 and is amplified to the V magnitude voltage signals, then this 8 road signal is carried out the conversion of analog to digital by A/D conversion chip MAX186, so that CPU reads it; 2 way word signals are read by CPU by serial ports expansion chip PC16552D.PC16552D is the serial ports expansion chip of expansion two-way serial ports, and it is connected in the mode of bus with CPU, and carries out read-write operation to data with the form of the interruption read-write by single-chip microcomputer.
That LCD MODULE adopts is the operating voltage 5V that Electronics Co., Ltd. of Jinpeng produces, and maximum operating currenbt 0.6mA is not with character library, and the master controller chip is the graphical dots configuration Liquid Crystal Module (OCM12232B) of SED1520.Show that with 16*16 a Chinese character and 16*8 show a character, can show two row, 7.5 Chinese characters of every row or 15 characters.Interface circuit adopts the mode of control indirectly, and eight data lines join with the PA mouth of I/O mouth extended chip 8255, controls it with the I/O mouth of single-chip microcomputer in addition and reads and writes and whether button selects backlight to open.Keypad circuit mainly is that 16 buttons adopt the 4*4 mode to connect, and the eight PC mouths with data line and 8255 join, and wherein the middle fracture of four data lines and CPU joins, and other four data lines are also drawn high into high level by 10K resistance.These 16 buttons are respectively: numeral 0～9, determine (ENTER), withdraw from (ESC), shutdown/radix point (OFF/.), transducer calibration function switching/LCD backlight open and close (I U/BL).
CF card and the interface circuit of CPU mainly are that data bus, address bus and the read-write by single-chip microcomputer is connected with corresponding pin in the CF card in the mode of bus, thereby realize the establishment of file and the storage of data.
Wireless data transmission module is the STR-10 type micropower type wireless data transmission module of being produced by Shanghai Sang Bo electronics technology company limited, DC power supply, and supply voltage is 5.0V.Communication channel is semiduplex, is suitable for the communication mode of point-to-multipoint most, also can be used for point-to-point communication.Its emissive power is low, and antijamming capability is strong, and the bit error rate is low, long transmission distance, and maximum transmission distance can reach more than the 500m.Circuit mainly is that the serial ports by single-chip microcomputer is connected with wireless data transmission module.
It should be noted last that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (6)
1, a kind of multifunctional data acquiring device, it comprises CPU and corresponding display screen that is connected with this CPU and keyboard, it is characterized in that: the signal input part of described CPU is connected with the serial output interface of a multi-channel a/d converter, and another signal input part of described CPU is connected with digital signal interface; Described CPU is connected with storer with bus mode; A plurality of input interfaces of described multi-channel a/d converter correspondence separately are connected with an analog signal interface.
2, multifunctional data acquiring device according to claim 1, it is characterized in that: described multi-channel a/d converter has 8 input interfaces, wherein have 7 input interfaces with its be respectively equipped with the current/voltage-converted circuit that current signal or voltage signal are changed of being used between the analog signal interface of corresponding connection with Manual Transfer Switch.
3, multifunctional data acquiring device according to claim 1 and 2 is characterized in that: have in the described multi-channel a/d converter 1 input interface with its be provided with amplifying circuit between the analog signal interface of corresponding connection.
4, multifunctional data acquiring device according to claim 1 is characterized in that: be provided with serial expanded circuit between another signal input part of described CPU and the described digital signal interface; The serial i/o interface of described CPU is connected with the signal output module that can realize communication with external processing apparatus.
5, multifunctional data acquiring device according to claim 4 is characterized in that: described signal output module is a wireless signal transmitting module.
6, multifunctional data acquiring device according to claim 1 is characterized in that: described storer is the CF card memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420120422 CN2779518Y (en) | 2004-12-13 | 2004-12-13 | Multi-functional data collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420120422 CN2779518Y (en) | 2004-12-13 | 2004-12-13 | Multi-functional data collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2779518Y true CN2779518Y (en) | 2006-05-10 |
Family
ID=36753604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420120422 Expired - Fee Related CN2779518Y (en) | 2004-12-13 | 2004-12-13 | Multi-functional data collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2779518Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453977C (en) * | 2006-11-08 | 2009-01-21 | 中国科学院合肥物质科学研究院 | Embedded agricultural plant growth environment detector and working method thereof |
| WO2012000295A1 (en) * | 2010-06-30 | 2012-01-05 | 大连理工大学 | Dual-mcu controlling multi-channel analog signal acquisition device |
| CN103226293A (en) * | 2013-03-26 | 2013-07-31 | 中国科学院光电技术研究所 | High-precision multichannel data acquisition system for focus detection system of photoetching machine |
| CN103226346A (en) * | 2013-03-21 | 2013-07-31 | 清华大学 | Configurable multi-channel analog and digital signal acquisition system |
| CN103575328A (en) * | 2012-08-09 | 2014-02-12 | 四川奥格科技有限公司 | Portable farmland information collecting terminal |
| CN103778760A (en) * | 2012-10-17 | 2014-05-07 | 成都龙冠科技实业有限公司 | Wireless data collector based on DSP and FPGA |
| CN106895868A (en) * | 2017-04-19 | 2017-06-27 | 北京同力数矿科技有限公司 | A kind of internet of things sensors equipment batch caliberating device |
-
2004
- 2004-12-13 CN CN 200420120422 patent/CN2779518Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453977C (en) * | 2006-11-08 | 2009-01-21 | 中国科学院合肥物质科学研究院 | Embedded agricultural plant growth environment detector and working method thereof |
| WO2012000295A1 (en) * | 2010-06-30 | 2012-01-05 | 大连理工大学 | Dual-mcu controlling multi-channel analog signal acquisition device |
| CN103575328A (en) * | 2012-08-09 | 2014-02-12 | 四川奥格科技有限公司 | Portable farmland information collecting terminal |
| CN103778760A (en) * | 2012-10-17 | 2014-05-07 | 成都龙冠科技实业有限公司 | Wireless data collector based on DSP and FPGA |
| CN103226346A (en) * | 2013-03-21 | 2013-07-31 | 清华大学 | Configurable multi-channel analog and digital signal acquisition system |
| CN103226293A (en) * | 2013-03-26 | 2013-07-31 | 中国科学院光电技术研究所 | High-precision multichannel data acquisition system for focus detection system of photoetching machine |
| CN106895868A (en) * | 2017-04-19 | 2017-06-27 | 北京同力数矿科技有限公司 | A kind of internet of things sensors equipment batch caliberating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201413484Y (en) | Wireless temperature moisture measurement and control network system | |
| CN102331485B (en) | Portable water quality monitor | |
| CN101261241B (en) | Soil water content monitoring instrument based on embedded system | |
| CN204302840U (en) | A kind of dust free room monitoring device | |
| CN2779518Y (en) | Multi-functional data collector | |
| CN202075305U (en) | State recording device of full-function rotating machine | |
| CN202589519U (en) | Wearing type wireless brain signal collecting system based on radio frequency identification | |
| CN1821915A (en) | Automatic control system and method for greenhouse environment and irrigation | |
| CN101158855A (en) | Serial interface type single-chip data acquisition system | |
| CN203414433U (en) | Temperature and humidity detection system for drying process | |
| CN101067563A (en) | Hand-held temperature and humidity dew-point measuring method and device | |
| CN203432700U (en) | Multi-channel temperature acquisition system | |
| CN210666692U (en) | Display page turning system based on infrared gesture control | |
| CN100453977C (en) | Embedded agricultural plant growth environment detector and working method thereof | |
| CN204856153U (en) | Environmental monitoring system with inputoutput unit | |
| CN103439370A (en) | Temperature and humidity detection system in drying process | |
| CN202720509U (en) | Internet of things-based intelligent greenhouse monitoring terminal | |
| CN205066813U (en) | Integrated form data acquisition system | |
| CN208922245U (en) | A kind of low power consumption data record and high-speed data transmission apparatus | |
| CN2779522Y (en) | Plants near-ground microclimate temperature and humidity sensor | |
| CN105137893A (en) | Grain condition monitoring device and monitoring method | |
| CN2750392Y (en) | Portable multi-point digital earth temperature gauge | |
| CN1718996A (en) | Data collection circuit and control module | |
| CN205210744U (en) | Agricultural thing networking monitor terminal | |
| CN1811642A (en) | Intelligent sensor device and method based on long-distance wireless group network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |