CN2469418Y - Measuring interface with type distinguish - Google Patents
Measuring interface with type distinguish Download PDFInfo
- Publication number
- CN2469418Y CN2469418Y CN 01216862 CN01216862U CN2469418Y CN 2469418 Y CN2469418 Y CN 2469418Y CN 01216862 CN01216862 CN 01216862 CN 01216862 U CN01216862 U CN 01216862U CN 2469418 Y CN2469418 Y CN 2469418Y
- Authority
- CN
- China
- Prior art keywords
- interface
- sensor
- measuring
- signal transmssion
- transmssion line
- 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 - Lifetime
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- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses a measuring interface with type identification, and consists of a sensor, a measuring device provided with a CPU, and a measuring interface connected between the sensor and the CPU arranged on the measuring device in series. The utility model is characterized in that the measuring interface is provided with a plurality of signal transmission lines inside, the number of which is n, wherein the n is more than or equal to 2, and is also provided with a common ground wire and an electrical source, and each signal transmission line is respectively connected with the common ground wire through a resistance. The utility model is characterized in that one measuring interface corresponds to a plurality of sensors.
Description
The utility model relates to a kind of measurement interface, especially a kind of measurement interface of belt type identification.
At present, the surveying instrument and the interface between the sensor that generally use in the society generally adopt method one to one, this instrument need carry n kind survey sensor when the data of measuring n type on certain instrument, then need on this instrument panel, to set n kind sensor interface, realize correspondence one by one, each other can not be general.Though this interface mode circuit structure is simple, the sensor kind that ought carry is more, quantity is bigger, and needs to walk abreast when using the sensor of a plurality of same kind, and the sensor interface value volume and range of product on the instrument panel just seems too many.Not only bad for the production of instrument, also be unfavorable for user's use, this is to have unsurmountable defective in the prior art.
The purpose of this utility model is to provide a kind of can be provided with the measurement interface that a measurement interface just can be realized the belt type identification of corresponding a plurality of sensors on surveying instrument.
Task of the present utility model is achieved through the following technical solutions, it comprises sensor, has the measuring equipment of central processing unit and measures interface, it is characterized in that measuring interface is serially connected with between the central processing unit on sensor and the measuring equipment, be provided with n bars transmission line in this measurement interface, n 〉=2 wherein,, a common ground and a power lead, every bars transmission line link to each other with common ground by a resistance respectively.
According to such scheme, when being decided to be " 0 " measuring the output signal that does not connect the power supply signal line in the interface, the output signal that connects the power supply signal line is decided to be " 1 ", and then under the situation that total line number is n any one or more signal transmssion line (containing whole lines) being connect the signal combination that produces when power supply is handled is 2
nKind, n bar line is not all done the situation that connects the power supply processing be considered as the interface free time, then the sensor type number that can choose for the measurement interface is 2
n-1, therefore when the sensor number of required identification was x, the pass of x and signal transmssion line n was x≤2
n-1, in use, at first the sensor number x according to required identification determines that the bar of signal transmssion line is counted n in the interface, n bars transmission line also is set in sensor then, and one or more in the n bars transmission line in this each sensor (containing all) joined with power supply according to the measured data of each sensor of predefined, with this n bars transmission line be arranged on corresponding the joining of n bars transmission line of measuring in the interface, again signal is sent to central processing unit processing and identification in addition, calculate measurement result by the measuring equipment measurement at last, according to such scheme, as long as being set, a utility model measures interface on the testing tool panel, just can realize the task of the corresponding a plurality of sensors of an interface by the sensor of changing different ground links, thereby reduced very much the sensor interface on the testing tool panel greatly, therefore can effectively realize task of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing is the structural representation that the utility model is measured interface when having three sensors.
1,2,3 is three sensors in the accompanying drawing, and 4 for measuring interface, and 5 is central processing unit, and 6 is measuring equipment.The utility model comprises sensor 1,2 and 3, have the measuring equipment 6 of central processing unit 5 and be serially connected with sensor and measuring equipment 6 on central processing unit 5 between measurement interface 4, it is characterized in that measuring and be provided with 2 bars transmission line p in the interface 4
1, p
2, common ground and power lead V
Cc, signal transmssion line p
1, p
2Pass through resistance R respectively
1, R
2Link to each other with common ground.As shown in the figure, in sensor 1,2,3, be respectively arranged with 2 bars transmission line b separately
2, b
3, c
2, c
3, d
2, d
3With a power lead b
1, c
1, d
1, the signal transmssion line b in the sensor 1
3With power lead b
1Join signal transmssion line b
2Unsettled, the signal transmssion line c in the sensor 2
2With power lead c
1Join signal transmssion line c
3Unsettled, the signal transmssion line d in the sensor 3
2And d
3All with power lead d
1Join, measure in the interface 4 and be provided with 2 bars transmission line p
1, p
2, ground wire and power lead V
Cc, common ground and this 2 bars transmission line p
1, p
2Between be serially connected with resistance R respectively
1And R
2, signal transmssion line p
1, p
2Input end can link to each other with the signal transmssion line in the sensor, its output terminal links to each other with central processing unit 5.When sensor 1 links to each other with measurement interface 4, the signal transmssion line b of sensor 1
2With the signal transmssion line p that measures in the interface 4
1Link to each other the signal transmssion line b of sensor 1
3With the signal transmssion line p that measures in the interface 4
2Link to each other, because signal transmssion line b
3With power lead b
1Link to each other signal transmssion line b
2Unsettled, to be input to the signal in the central processing unit 5 be 01 to signal transmssion line like this, equally when sensor 2 links to each other with measurement interface 4, the signal that signal transmssion line is input in the central processing unit 5 is 10, when sensor 3 links to each other with measurement interface 4, the signal that signal transmssion line is input in the central processing unit 5 is 11, and central processing unit 5 can be measured different transducing signals according to the difference of identification signal.The quantity of signal transmssion line increases in measuring interface, and the different ground connection combination by signal transmssion line can also make interface discern more sensor.
Claims (3)
1, a kind of measurement interface of belt type identification, it comprises sensor, has the measuring equipment of central processing unit and measures interface, it is characterized in that measuring and be provided with n bars transmission line in the interface,, a common ground and a power lead, every bars transmission line divides in addition and links to each other with common ground by a resistance.
2, the measurement interface of belt type identification according to claim 1 is characterized in that the bar of signal transmssion line is counted n 〉=2.
3, the measurement interface of belt type according to claim 1 identification is characterized in that measuring interface and is serially connected with between the central processing unit on sensor and the measuring equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01216862 CN2469418Y (en) | 2001-03-12 | 2001-03-12 | Measuring interface with type distinguish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01216862 CN2469418Y (en) | 2001-03-12 | 2001-03-12 | Measuring interface with type distinguish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2469418Y true CN2469418Y (en) | 2002-01-02 |
Family
ID=33635194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01216862 Expired - Lifetime CN2469418Y (en) | 2001-03-12 | 2001-03-12 | Measuring interface with type distinguish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2469418Y (en) |
-
2001
- 2001-03-12 CN CN 01216862 patent/CN2469418Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110312 Granted publication date: 20020102 |