CN2839970Y - Controlling device for sensor use - Google Patents
Controlling device for sensor use Download PDFInfo
- Publication number
- CN2839970Y CN2839970Y CN 200520113961 CN200520113961U CN2839970Y CN 2839970 Y CN2839970 Y CN 2839970Y CN 200520113961 CN200520113961 CN 200520113961 CN 200520113961 U CN200520113961 U CN 200520113961U CN 2839970 Y CN2839970 Y CN 2839970Y
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- module
- sensor
- control device
- channel selecting
- signal
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Abstract
The utility model discloses a kind of sensor control device, comprise multirange selection circuit, this circuit is made of channel selecting module, path handover module and switching range module, described channel selecting module receives the signal from each range of sensor, described switching range module receives the multirange selection instruction from the outside, thereby controls the wherein signal of some ranges of described channel selecting module output by the path handover module.The utility model also further comprises A/D modular converter, acquisition rate control module, buffer, data-carrier store, communication module, hardware serial communication circuit and identity code generation module.And can carry out serial communication by USB interface.Prior art the utlity model has characteristics such as simple in structure, applied widely, antijamming capability is strong, expansion convenience relatively.
Description
Technical field
The utility model relates to a kind of control device that is used for sensor.
Technical background
At present, general sensor is selected in its a plurality of ranges in use if desired, then must be determined before use, in use can not control multiple range switching automatically, uses very inconvenience.In addition, the transmission mode between moment sensor and data acquisition unit adopts analog form more, can only carry out analog to digital conversion (A/D conversion) by data acquisition unit.The advantage of this mode is that total system is simple, and the programming difficulty in the data acquisition unit is less; Shortcoming is anti-interference not as digital signal, is difficult for extension sensor simultaneously.
The utility model content
The purpose of this utility model is: at the deficiencies in the prior art, provide a kind of simple in structure, can realize the automatically sensor control device of control of multirange.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of sensor control device, comprise multirange selection circuit, this circuit is made of channel selecting module, path handover module and switching range module, described channel selecting module receives the signal from each range of sensor, described switching range module receives the multirange selection instruction from the outside, thereby controls the wherein signal of some ranges of described channel selecting module output by the path handover module.
Preferably, described path selects module can be multiselect one gate.
Further, can also comprise the A/D modular converter, be used for being connected, thereby will become digital signal, and export described channel selecting module to from the analog signal conversion of described sensor with the output terminal of each range of described sensor.
Further, can also comprise the acquisition rate control module, be used to receive acquisition rate steering order, thereby adjust the switching rate of A/D modular converter from the outside.
Further, also comprise buffer and data-carrier store, the digital signal of described channel selecting module output is in buffer is stored to described data-carrier store, and described acquisition rate control module is according to the data sampling interval of acquisition rate steering order control buffer.
Further, also comprise communication module and hardware serial communication circuit, described hardware serial communication circuit carries out data communication with serial mode and outside, thereby receives the steering order from the outside, and output is from the signal of sensor; Described communication module connects switching range module, acquisition rate control module and data-carrier store respectively, thereby realize and to send to corresponding switching range module or acquisition rate control module respectively from the external control instruction of hardware serial communication circuit, and the digital signal in the data-carrier store is sent to described hardware serial communication circuit.
Further, also comprise the identity code generation module, this module and described communication module communication are reported instruction thereby receive from the identity of outside, and produce identity code by communication module and the output of hardware serial communication circuit.
Preferably, in the single-chip microcomputer U1 that it is PIC16F873 that each module in this control device all is arranged at a model, the port RA0 of described single-chip microcomputer U1～RA2 is the simulating signal A1～A3 of three road ranges of input pickup respectively, and its RX end and TX end carry out serial data communication with the outside.
Preferably, the RX of described single-chip microcomputer U1 end is connected a USB interface J1 with the TX end.
In technique scheme, the utility model is selected circuit by multirange, can realize in use selecting at any time the different ranges of sensor, and it is extremely easy to use.Further, by A/D modular converter, acquisition rate control module, buffer and data-carrier store etc., can realize the analog to digital conversion of sensor output data, functions such as data acquisition rate control, thereby can shorten the transmission range of mimic channel greatly, thereby reduce to disturb, alleviate the working pressure of collector significantly, make the sensor expansion convenient.In addition, by communication module and hardware serial communication circuit, identity code generation module and USB interface, can realize the function such as remote auto control, digitizing communication of sensor, and the characteristic of the plug and play of USB interface is used also more convenient.Characteristics such as relative prior art the utlity model has simple in structurely, applied widely, can be applicable in any sensing system, and antijamming capability is strong, expansion is convenient.
Description of drawings
Accompanying drawing 1 is the circuit block diagram of the utility model sensor with a kind of preferred embodiment of control device;
Accompanying drawing 2 is a kind of preferable enforcement circuit theory diagrams of Fig. 1.
Embodiment
Below in conjunction with Figure of description and specific embodiment the utility model is described in further detail.
A kind of sensor control device that the utility model provides can be arranged in any sensor, and is connected with the signal output apparatus of sensor.
This device comprises multirange selection circuit at least, this circuit is made of channel selecting module, path handover module and switching range module, described channel selecting module receives the signal from each range of sensor, described switching range module receives the multirange selection instruction from the outside, thereby controls the wherein signal of some ranges of described channel selecting module output by the path handover module.
Described path selects module can be multiselect one gate.As multiselect one gate that can adopt simulation, thereby realize that the simulating signal of sensor output is directly carried out multirange to be selected.In of the present utility model a kind of preferred embodiment that Fig. 1 provided,, adopt multiselect one gate of numeral in order to realize the function of sensor signal digitizing output of the present utility model simultaneously.
As above-mentioned, also comprise A/D modular converter, acquisition rate control module, buffer, data-carrier store, communication module, hardware serial communication circuit and identity code generation module among the embodiment that Fig. 1 provided.Wherein:
Described A/D modular converter is used for being connected with the output terminal of each range of described sensor, thereby will become digital signal from the analog signal conversion of described sensor, and exporting described channel selecting module to, the digital signal of described channel selecting module output is in buffer is stored to described data-carrier store.As another embodiment, if channel selecting module adopts multiselect one gate of simulation, then can exchange the position of channel selecting module and A/D modular converter among Fig. 4, make direct each the range output terminal that connects from the Sensor Analog Relay System circuit of channel selecting module, after carrying out multiselect one, select the simulating signal of one of them range to input to the A/D modular converter and convert digital signal to, after export buffer to.
Described acquisition rate control module is used to receive the acquisition rate steering order from the outside, thereby adjusts the switching rate of A/D modular converter.Described acquisition rate control module is also controlled the data sampling interval of buffer according to the acquisition rate steering order.
Described hardware serial communication circuit carries out data communication with serial mode and outside, thereby receives the steering order from the outside, and output is from the signal of sensor.
Described communication module connects switching range module, acquisition rate control module and data-carrier store respectively, thereby realize and to send to corresponding switching range module or acquisition rate control module respectively from the external control instruction of hardware serial communication circuit, and the digital signal in the data-carrier store is sent to described hardware serial communication circuit.
Described identity code generation module and described communication module communication are reported instruction thereby receive from the identity of outside, and produce identity code by communication module and the output of hardware serial communication circuit.
Figure 2 shows that a kind of preferable specific embodiments of Fig. 1.Among the figure, sensor provided by the utility model is with in the single-chip microcomputer U1 that all can be arranged at a model be PIC16F873 of each module in the control device, the port RA0 of described single-chip microcomputer U1～RA2 is the simulating signal A1～A3 of three road ranges of input pickup respectively, and its RX end and TX end carry out serial data communication with the outside.The RX end of described single-chip microcomputer U1 is connected a USB interface J1 with the TX end.In the time of in this device is arranged at sensor, this USB interface is the sensor front end USB interface.
Band A/D converter in the PIC16F873A, the sensor front end mimic channel is finished and is directly sent into PIC16F873A after the signal Processing and carry out the A/D conversion, serial communication pin by PIC16F873A links to each other with sensor output connector (USB mouth) again, and sensor output connector links to each other with the collector front-end interface by dedicated connection and finishes digital data transmission work.
Its concrete course of work is as follows:
External unit, as host computer or the distance host that carries out communication with sensor, require identity to report instruction by the transmission earlier of sensor front end USB mouth, communication module is sent out this instruction and is given the identity code generation module by receiving the instruction back, through communication module and hardware serial communication circuit, sensor front end USB mouth identity code is issued external unit again.
External unit selects to send as change orders such as acquisition rate, switching range according to the user after the identity code that obtains sensor.
Communication module in the sensor passes on these orders relevant module respectively after receiving the order that send the outside, again by they concrete related commands of carrying out.
The switching of range is to realize by the path that switches the many-one gate after AD changes.
The switching of acquisition rate is to realize by the sampling period of control AD converter and buffer.
Select module, buffer, data-carrier store, communication module, hardware serial communication circuit, USB interface to send to external unit through the signal from analog circuit of selecting by AD conversion, path, so that can carry out after the external device processes as follow-up processing such as demonstration, analyses.
Claims (9)
1, a kind of sensor control device, comprise multirange selection circuit, it is characterized in that this circuit is made of channel selecting module, path handover module and switching range module, described channel selecting module receives the signal from each range of sensor, described switching range module receives the multirange selection instruction from the outside, and described channel selecting module is exported the wherein signal of some ranges under the control of described path handover module.
2, sensor control device according to claim 1 is characterized in that: it is multiselect one gate that described path is selected module.
3, sensor control device according to claim 1, it is characterized in that: also comprise the A/D modular converter, be used for being connected, will become digital signal from the analog signal conversion of described sensor, and export described channel selecting module to the output terminal of each range of described sensor.
4, as sensor control device as described in the claim 3, it is characterized in that: also comprise the acquisition rate control module, be used to receive acquisition rate steering order from the outside.
5, as sensor control device as described in the claim 4, it is characterized in that: also comprise buffer and data-carrier store, the digital signal of described channel selecting module output is in buffer is stored to described data-carrier store.
6, as sensor control device as described in the claim 5, it is characterized in that: also comprise communication module and hardware serial communication circuit, described hardware serial communication circuit carries out data communication with serial mode and outside, receives the steering order from the outside, and output is from the signal of sensor; Described communication module connects switching range module, acquisition rate control module and data-carrier store respectively, to send to corresponding switching range module or acquisition rate control module respectively from the external control instruction of hardware serial communication circuit, and the digital signal in the data-carrier store will be sent to described hardware serial communication circuit.
7, as sensor control device as described in the claim 6, it is characterized in that: also comprise the identity code generation module, this module and described communication module communication receive from the identity of outside and report instruction, and produce identity code by communication module and the output of hardware serial communication circuit.
8, as sensor control device as described in one of among the claim 1-7, it is characterized in that: in the single-chip microcomputer (U1) that it is PIC16F873 that each module in this control device all is arranged at a model, the port RA0 of described single-chip microcomputer (U1)～RA2 is the simulating signal A1～A3 of three road ranges of input pickup respectively, and its RX end and TX end carry out serial data communication with the outside.
9, as sensor control device as described in the claim 8, it is characterized in that: the RX end of described single-chip microcomputer (U1) and TX hold and are connected a USB interface (J1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113961 CN2839970Y (en) | 2005-07-18 | 2005-07-18 | Controlling device for sensor use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113961 CN2839970Y (en) | 2005-07-18 | 2005-07-18 | Controlling device for sensor use |
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| Publication Number | Publication Date |
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| CN2839970Y true CN2839970Y (en) | 2006-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200520113961 Expired - Lifetime CN2839970Y (en) | 2005-07-18 | 2005-07-18 | Controlling device for sensor use |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202602A (en) * | 2017-06-30 | 2017-09-26 | 宁波佳明测控技术有限公司 | A kind of calibration system and scaling method on sensor |
-
2005
- 2005-07-18 CN CN 200520113961 patent/CN2839970Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202602A (en) * | 2017-06-30 | 2017-09-26 | 宁波佳明测控技术有限公司 | A kind of calibration system and scaling method on sensor |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150718 Granted publication date: 20061122 |
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| EXPY | Termination of patent right or utility model |