CN2727846Y - Multi-sensor information acquisition system - Google Patents
Multi-sensor information acquisition system Download PDFInfo
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- CN2727846Y CN2727846Y CN 200420089253 CN200420089253U CN2727846Y CN 2727846 Y CN2727846 Y CN 2727846Y CN 200420089253 CN200420089253 CN 200420089253 CN 200420089253 U CN200420089253 U CN 200420089253U CN 2727846 Y CN2727846 Y CN 2727846Y
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Abstract
The utility model relates to a multi-sensor information acquisition system, comprising a microprocessor which is electronically connected with data lines through a control circuit, a memory unit, an analog-to-digital conversion chip, a voltage conversion chip, an operation control key and a power source. The analog-to-digital conversion chip is connected with a measuring signal interface which is used to be inserted with the external sensor signal lines. The voltage conversion chip is connected with a data exchange interface which is used to be inserted with an external device. The utility model can simultaneously connect and record the GPS location information and the data of a plurality of other sensors, and can view data on site. The utility model has the advantages of simple system operation, portability, simple structure, abundant functions and smart shape, and can be used in the field and directly operated in palm.
Description
Technical field
The utility model relates to a kind of information acquisition system, particularly a kind ofly can connect GPS steady arm and a plurality of other sensor simultaneously, carries out the portable multi-sensor information extraction system of data information acquisition.
Background technology
The agrotechnical development of scientific farming and modern digital, the understanding of ground condition need have been proposed the requirement of precise quantification, this just needs by various technological means, use various sensors, measuring instrument that the multiple condition information (as: soil moisture, nutrient etc.) in soil is gathered, for agricultural, production of forestry provides reliably, agronomy parameter accurately.
In the past, the instrument that the mode that collection soil information is adopted normally distributes and various sensors is set or is used to measure in the field carries out data acquisition, record by artificial each sensor or instrument at each area again.In gatherer process, though can adopt such as palm PC, notebook computer or other specialized equipments and carry out data recording, but data information acquisition for large tracts of land soil (hectare for example up to ten thousand), then many inconvenience can appear, especially the mode of taking manual record is aspect the corresponding relation of setting up collection position and this place, position image data, and is more outstanding.
Though utilize the GPS steady arm can obtain collection position information accurately, but because the GPS steady arm can only obtain and record position information, can't be connected with other sensor, can not gather the information of several sensors simultaneously, therefore, still can't satisfy the above-mentioned demand of setting up collection position and image data corresponding relation.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of multi-sensor information acquisition system at prior art existing defective that is not easy to set up collection position and image data corresponding relation in gathering the soil information data, this system can connect GPS steady arm and a plurality of sensor simultaneously, realize obtaining simultaneously and record position information and the measurement data information in groups that transmits by a plurality of sensors, set up position data and this corresponding relation between measurement data in groups, for calling the soil data at any time, carrying out the large tracts of land soil analysis provides the means of obtaining information parameter fast.
Technical problem to be solved in the utility model is achieved through the following technical solutions:
A kind of multi-sensor information acquisition system, it comprises microprocessor CPU, storage unit, modulus conversion chip, level transferring chip, operation control key and the power supply that is electrically connected mutually by control circuit and data line.
Be connected with the measuring-signal interface of the external sensor signal wire that is used to peg graft on the described modulus conversion chip.Level transferring chip is used for the level of input/output signal is changed, and is connected with on this level transferring chip to be used to the external unit of pegging graft, as the data exchange interface of GPS steady arm or computing machine communication port.
In order to carry out data information acquisition intuitively, easily, said system can also be established LCDs, and this liquid crystal display is connected with described control circuit by driving circuit.
Above-mentioned measurement data signals interface is more than one, wherein can comprise level signal interface, current signal interface, also can mix setting.
In the operation, the data acquisition personnel can make integrated being installed in of said system special-purpose collector in the box and carry, and sensor is being installed or is carrying out of the signal output and measurement data signals interface grafting of the place of soil data acquisition at needs a plurality of sensors, simultaneously, the output and the data exchange interface of GPS steady arm are pegged graft, just can carry out the location of soil data message and gather.By data acquisition personnel's operation, microprocessor CPU carries out alignment processing with position signalling and the soil data message of being gathered, and is stored in the storage unit.Soil data acquisition when an area finishes, and the data acquisition personnel can arrive another area and carry out the soil data acquisition, and all data messages of being gathered have all obtained and the corresponding storage of this area's positional information.After finishing the soil data acquisition, data exchange interface can be connected with computing machine in addition, thereby subsequent analysis processing is carried out in the data message output that collects.Adopt the alignment processing of GPS locating information and soil data message, make the distribution of the kind soil regime that analyst, data acquisition personnel can make things convenient for, understand from computer screen or LCDs intuitively.
By above technical scheme as can be known, the utlity model has following advantage:
The utility model has solved the deficiency that can only gather the GPS locator data in the prior art, can gather and write down the data of GPS and other a plurality of sensors simultaneously, and can check data in the scene, so that make analyzing and processing in real time; The portable GPS multi-sensor information collector that the utility model provides, easy to carry, simple to operate, can be used in multiple different occasion, especially can use in the open air; The utility model is simple in structure simultaneously, feature richness, and profile is small and exquisite, directly operates at palm.
Description of drawings
Fig. 1 is the utility model structure connection diagram;
Fig. 2 is the schematic diagram of the utility model feed circuit and monolithic microcomputer kernel part;
Fig. 3 is that the utility model liquid crystal display shows and keyboard interface circuit schematic diagram partly;
Fig. 4 is the schematic diagram of the utility model data storage, analog to digital conversion, level converting section.
Embodiment
Below, also in conjunction with the accompanying drawings the utility model is described in further detail by embodiment.
As shown in Figure 1, be the structural representation of a preferred embodiment provided by the utility model.It adopts single-chip microcomputer 1 as microprocessor.Single-chip microcomputer 1 is connected with storage unit 2, modulus conversion chip 3, level transferring chip 4 by control circuit, and simultaneously, single-chip microcomputer 1 also is connected with driving circuit 5, operation control key 6 and the power supply 7 that the graphic lcd of one 128 * 64 pixel shields.
On modulus conversion chip 3, be connected with measurement data signals interface 31.On level transferring chip 4, be connected with data exchange interface 41.The analog signal conversion that modulus conversion chip 3 is used for sensor output is a digital signal.Level transferring chip 4 is used for the level of input/output signal is changed.Data exchange interface 41 can make present embodiment be connected with the communication port of external GPS steady arm or outer computer.
The measurement data signals interface is established 8 sensor interfaces altogether, and wherein, 6 output levels of can pegging graft are the sensor of 0-5V; 2 output currents of can pegging graft are the sensor of 4-20mA.The user can use flexibly according to the output type of concrete needs and sensor.Data exchange interface adopts standard RS232 interface.
Referring to Fig. 2, single-chip microcomputer U5 is a WINBOND 78E58 series, and it provides power supply by a voltage stabilizing chip U1 and dc-battery group for it.As power supply, a slice 7805 voltage stabilizing chip U1 can provide 5V power supply to total system to feed circuit by 4 batteries that save 1.5V.
Referring to Fig. 3, J12 is a LCD Interface, and J13 is a keyboard interface.LCD Interface connects the graphic lcd screen of 128 * 64 pixels, and this graphic lcd screen can Chinese display and figure.Single-chip microcomputer U5 among Fig. 2 links to each other with the J12 LCD Interface and has realized the liquid crystal display demonstration.Single-chip microcomputer U5 among Fig. 2 links to each other with keyboard control chip U8 among Fig. 3.Keyboard control chip U8 adopts the HD7279 chip.Keyboard control chip U8 connects the J13 keyboard interface, has realized the keyboard input.Keyboard can be 4 * 4 matrix keyboards, realizes input and 6 kinds of function operations of digital 0-9.Concrete function can be according to application setting.Liquid crystal display and operation control key cooperate, and abundant operation interface is provided, and realize the control operation of system and the data of demonstration GPS and sensor.
Figure 4 shows that the connection diagram of storer, modulus conversion chip, level transferring chip, serial line interface.Storage unit U3 adopts the non-volatile RAM DS1270 chip of 2M byte to constitute, and this chip can reach more than 5 years in preservation data under the situation of system's power down.
Modulus conversion chip U4 is 12 MAX197, U10 is level transferring chip MAX232, can change the simulating signal of 6 road 0-5V, 2 road 4-20mA, promptly the sensor of 6 output 0-5V analog level signal and the sensor of 2 output 4-20mA current signals can be realized connecting and be gathered to this circuit.
CON3 is the exchanges data serial line interface, and wherein, V0, V1, V2, V3, V4, V5 are voltage input circuit, can connect 6 tunnel sensors that are output as 0-5V, and IV0, IV1 are current input circuit, can connect 2 tunnel sensors that are output as 4-20mA.
Level transferring chip MAX232 chip is finished the Transistor-Transistor Logic level of single-chip microcomputer U5 serial line interface and the EIA level of exchanges data serial port is changed mutually, has realized that single-chip microcomputer U5 is connected with communication between external GPS steady arm or the computing machine.
Single-chip microcomputer U5 links to each other with storer U3 among Fig. 4 and has realized the storage of data among Fig. 2; Single-chip microcomputer U5 is connected with modulus conversion chip U4 among Fig. 4, can realize analog to digital conversion circuit; Single-chip microcomputer U5 links to each other with level transferring chip U10 among Fig. 4, realizes the level conversion of serial ports.
The software of system can adopt KEIL C language to realize, has comprised the signals collecting subroutine, Keyboard Control subroutine, liquid crystal display subroutine, serial communication subroutine etc.
During present embodiment work: the simulating signal of 8 tunnel sensor acquisition is via being the main analog to digital conversion circuit input single-chip microcomputer U5 that formed with modulus conversion chip U4, the single-chip microcomputer of the information via RS232 level conversion of GPS or computing machine input simultaneously U5, single-chip microcomputer U5 stores by memory circuit the data of input, single-chip microcomputer U5 can also show the data of input by the liquid crystal display display circuit, make the user can from show, understand the occurrence of the parameter of surveying, the user can send order to single-chip microcomputer U5 by the operation control key interface circuit, and feed circuit each circuit module in system provides power supply.
It should be noted that at last, 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 (8)
1, a kind of multi-sensor information acquisition system, comprise a microprocessor, the corresponding link of each of this microprocessor is connected with storage unit, modulus conversion chip, level transferring chip, operation control key and power supply respectively by control circuit, it is characterized in that: the measuring-signal interface that is connected with the external sensor signal wire that is used to peg graft on the described modulus conversion chip; Be connected with the data exchange interface of the external unit communication port that is used to peg graft on the described level transferring chip.
2, multi-sensor information acquisition system according to claim 1 is characterized in that: described control circuit also is connected with a LCDs by driving circuit.
3, multi-sensor information acquisition system according to claim 1 is characterized in that: described measurement data signals interface is more than one, comprising level signal interface and/or current signal interface.
4, multi-sensor information acquisition system according to claim 3 is characterized in that: described measurement data signals interface is eight, and wherein six is the level signal interface, and two is the current signal interface.
5, according to the arbitrary described multi-sensor information acquisition system of claim 1-4, it is characterized in that: described data exchange interface is the RS232 interface.
6, multi-sensor information acquisition system according to claim 5 is characterized in that: described microprocessor CPU is a single-chip microcomputer.
7, multi-sensor information acquisition system according to claim 5 is characterized in that: described operation control key is 4 * 4 matrix keyboard, and this matrix keyboard has numerical key and function key.
8, multi-sensor information acquisition system according to claim 5 is characterized in that: described power supply is the power circuit that comprises 7805 voltage stabilizing chips and 5V battery, or the power interface that can be connected with outside DC power supply apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420089253 CN2727846Y (en) | 2004-09-17 | 2004-09-17 | Multi-sensor information acquisition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420089253 CN2727846Y (en) | 2004-09-17 | 2004-09-17 | Multi-sensor information acquisition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2727846Y true CN2727846Y (en) | 2005-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200420089253 Expired - Fee Related CN2727846Y (en) | 2004-09-17 | 2004-09-17 | Multi-sensor information acquisition system |
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| CN (1) | CN2727846Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932026A (en) * | 2012-11-14 | 2013-02-13 | 天津市翔晟远电力设备实业有限公司 | Sensor working platform for field work |
-
2004
- 2004-09-17 CN CN 200420089253 patent/CN2727846Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932026A (en) * | 2012-11-14 | 2013-02-13 | 天津市翔晟远电力设备实业有限公司 | Sensor working platform for field work |
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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 |