CN204270059U - The general breakout box of agricultural - Google Patents
The general breakout box of agricultural Download PDFInfo
- Publication number
- CN204270059U CN204270059U CN201420651303.5U CN201420651303U CN204270059U CN 204270059 U CN204270059 U CN 204270059U CN 201420651303 U CN201420651303 U CN 201420651303U CN 204270059 U CN204270059 U CN 204270059U
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- circuit
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- conversion
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Abstract
The utility model discloses a kind of agriculture general breakout box, the input end of mu balanced circuit is connected to 485 circuit, circuit output end of pressure-stabilizing is connected to conversion processing circuit, AD treatment circuit and mode selection circuit, and AD treatment circuit and mode selection circuit are connected to conversion processing circuit.The utility model is the switching device possessing analog sensor, digital sensor one, in switching various kinds of sensors collection signal, and data outwards can be exported by 485 data buss.
Description
Technical field
The utility model relates to agricultural technology field, especially a kind of can the general breakout box of agricultural of AD digital conversion of external analog sensor.
Background technology
In existing sensor, be usually divided into analog sensor and the large class of digital sensing tolerance, wherein analog sensor can be divided into voltage-type and current mode two class substantially, and digital sensor can be divided into impulse type, serial ports type, digital protocol type etc.The standard used due to the different sensors of manufacturer is also not quite similar, so often need special equipment or special circuit board just can read the numerical value of this sensor when using these sensors, corresponding circuit complexity is loaded down with trivial details, especially easily makes a mistake in the occasion needing collection multiple sensors.
Utility model content
The shortcoming that the applicant exists for above-mentioned prior art, there is provided a kind of agricultural rational in infrastructure general breakout box, can external analog sensor, digital sensor, and will by external analog sensor, digital sensor convert digital quantity to, and by unified interface and other device talks.
The technical scheme that the utility model adopts is as follows:
A kind of agriculture general breakout box, the input end of mu balanced circuit 5 is connected to 485 circuit, and circuit output end of pressure-stabilizing is connected to conversion processing circuit, AD treatment circuit and mode selection circuit, and AD treatment circuit and mode selection circuit are connected to conversion processing circuit.
Further improvement as technique scheme:
In described conversion processing circuit, download interface circuit is connected to processor, reset circuit is connected to the reseting interface of processor, digital conversion interface is connected to the I/O interface possessing specific function of processor, and state display LED is connected in mu balanced circuit and the standby large I/O interface of filling with electric current for the treatment of tool.
In described AD treatment circuit, the control interface of AD conversion IC circuit is connected to processor, and the output terminal of the measuring junction concatenation operation treatment circuit of AD conversion IC circuit, the input end of arithmetic processing circuit is connected to AD interface circuit.
In described AD treatment circuit, processor is AD7706.
The beneficial effects of the utility model are as follows:
The utility model is the switching device possessing analog sensor, digital sensor one, in switching various kinds of sensors collection signal, and data outwards can be exported by 485 data buss.
Accompanying drawing explanation
Fig. 1 is each model calling schematic diagram of the utility model patent.
Fig. 2 is the structural representation of conversion processing circuit.
Fig. 3 is the structural representation of AD treatment circuit.
In figure: 1,485 circuit; 2, conversion processing circuit; 3, AD treatment circuit; 4, mode selection circuit; 5, mu balanced circuit; 7, download interface circuit; 6, processor; 8, reset circuit; 9, digital conversion interface; 10, state display LED; 11, AD conversion IC circuit; 12, arithmetic processing circuit; 13, AD interface circuit.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 1, in the general breakout box of agricultural described in the utility model, the input end of mu balanced circuit 5 is connected to 485 circuit 1, mu balanced circuit 5 output terminal is connected to conversion processing circuit 2, AD treatment circuit 3 is connected to conversion processing circuit 2 with mode selection circuit 4, AD treatment circuit 3 and mode selection circuit 4.
As shown in Figure 2, in described conversion processing circuit 2, download interface circuit 7 is connected to processor 6, reset circuit 8 is connected to the reseting interface of processor 6, digital conversion interface 9 is connected to the I/O interface possessing specific function of processor 6, state display LED10 be connected to mu balanced circuit 5 and processor 6 possess fill with greatly electric current (inside electric current) I/O interface on.
As shown in Figure 3, in described AD treatment circuit 3, the control interface of AD conversion IC circuit 11 is connected to processor 6, and the output terminal of the measuring junction concatenation operation treatment circuit 12 of AD conversion IC circuit 11, the input end of arithmetic processing circuit 12 is connected to AD interface circuit 13.
In described AD treatment circuit 3, processor 6 is AD7706, and possess 3 ALT-CH alternate channel pseudo-differential AD converter, wherein its resolution is 16.Y1 is base when AD7706 provides, and U6 is operational amplifier, and this amp.in connects input interface J4, and output terminal is connected to U1AD7706 and measures input end, and the digital control end of U1AD7706 is connected to conversion processing circuit 2.
In described conversion processing circuit 2, U3 is processor, and U4 is for downloading chip, and U3 processor is connected to U4 and downloads chip CH340G, and U4 downloads chip and is connected to J5USB interface.D1, D10, D11 are light emitting diode, and wherein D10, D11 are connected to download circuit U4.
In 485 described circuit 1 and mu balanced circuit 5, U8 is voltage stabilizing IC, U7 in mu balanced circuit is 485 change-over circuit IC; R6, R9, R10, D7, D8 form 485 protection circuits; U7 is connected to 485 protection circuits; 485 protection circuit connecting interface J3; interface J3 is connected to the input end of U8 mu balanced circuit, and the output terminal of mu balanced circuit 5 is connected to 485 protection circuits and U7485 change-over circuit.
More than describing is to explanation of the present utility model, and be not the restriction to utility model, when without prejudice to the utility model spirit, the utility model can do any type of amendment.
Claims (2)
1. the general breakout box of agricultural, it is characterized in that: the input end of mu balanced circuit (5) is connected to 485 circuit (1), mu balanced circuit (5) output terminal is connected to conversion processing circuit (2), AD treatment circuit (3) and mode selection circuit (4), and AD treatment circuit (3) and mode selection circuit (4) are connected to conversion processing circuit (2); In described conversion processing circuit (2), download interface circuit (7) is connected to processor (6), reset circuit (8) is connected to the reseting interface of processor (6), digital conversion interface (9) is connected to the I/O interface possessing specific function of processor (6), state display LED(10) be connected to mu balanced circuit (5) and processor (6) and possess in large I/O interface of filling with electric current; In described AD treatment circuit (3), the control interface of AD conversion IC circuit (11) is connected to processor (6), the output terminal of the measuring junction concatenation operation treatment circuit (12) of AD conversion IC circuit (11), the input end of arithmetic processing circuit (12) is connected to AD interface circuit (13).
2. according to the general breakout box of agricultural according to claim 1, it is characterized in that: in described AD treatment circuit (3), processor (6) is AD7706.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651303.5U CN204270059U (en) | 2014-11-04 | 2014-11-04 | The general breakout box of agricultural |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651303.5U CN204270059U (en) | 2014-11-04 | 2014-11-04 | The general breakout box of agricultural |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204270059U true CN204270059U (en) | 2015-04-15 |
Family
ID=52804916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420651303.5U Expired - Fee Related CN204270059U (en) | 2014-11-04 | 2014-11-04 | The general breakout box of agricultural |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204270059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022090284A (en) * | 2020-12-07 | 2022-06-17 | 株式会社日立製作所 | Sensing system and detection method |
-
2014
- 2014-11-04 CN CN201420651303.5U patent/CN204270059U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022090284A (en) * | 2020-12-07 | 2022-06-17 | 株式会社日立製作所 | Sensing system and detection method |
| JP7377787B2 (en) | 2020-12-07 | 2023-11-10 | 株式会社日立製作所 | Sensing system and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20151104 |
|
| EXPY | Termination of patent right or utility model |