CN107305357A - A kind of new structure for being capable of automatic identification continuous signal and interval signal - Google Patents
A kind of new structure for being capable of automatic identification continuous signal and interval signal Download PDFInfo
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- CN107305357A CN107305357A CN201710148560.5A CN201710148560A CN107305357A CN 107305357 A CN107305357 A CN 107305357A CN 201710148560 A CN201710148560 A CN 201710148560A CN 107305357 A CN107305357 A CN 107305357A
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
- G05B19/0425—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2612—Data acquisition interface
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Abstract
A kind of new structure for being capable of automatic identification continuous signal and interval signal, the structure includes a signal acquisition input module, a judge module, an oscillation module, a D/A converter module, and a signal processing module.The signal acquisition input module is located at collecting sensor signal chip exterior, and by a pin input signal, other modules are located at collecting sensor signal chip internal.During work, signal acquisition input module inputs a signal into judge module, and judge module will detect whether port has oscillator signal at regular intervals, if n (n>2) individual clk signal, then can close D/A converter module automatically, enable oscillation module；If detection port does not have oscillator signal, oscillation module can be closed, D/A converter module is enabled, then the continuously or discontinuously signal received can be converted to corresponding control signal by signal processing module.
Description
Technical field
The present invention relates to a kind of new structure for being capable of automatic identification continuous signal and interval signal, belong to integrated circuit skill
Art field.
Background technology
In many occasions, generally require according to specific environmental characteristic or consumer's custom demand selection continuous acquisition signal
Or interruption collection signal.Such as, temperature sensor signal acquisition chip operationally, is sometimes only needed to several characteristic temperatures
Point carries out signal acquisition, then needs to carry out continuous signal collection to a temperature section sometimes.Such as, earphone collecting sensor signal
Chip operationally, is sometimes only needed to be acquired the signal of several fixed frequencies, and the letter to whole frequencies is then needed sometimes
Number carry out continuous acquisition.Again such as, PM2.5 collecting sensor signals chip operationally, when environment is good, it is only necessary to judge
PM2.5 is outstanding rank, or good levels, and is then needed continuously for the PM2.5 of slight, moderate, severe, severity level
The PM2.5 values of monitoring, constantly output reality.
At present, it is typically relatively inexpensive to do for the information of continuous acquisition input port in collecting sensor signal chip
Method is to use RC oscillators., can be for generation using this RC oscillators being made up of resistance, electric capacity and sine-wave oscillator
1Hz-1MHz low frequency signal, carries out continuous acquisition and the output of signal.Although this RC oscillators are relative to other kinds of
It is cheap for oscillator (such as crystal oscillator), but be due to that one is straight in work, therefore power consumption is still higher.
In collecting sensor signal chip, for the information of the collection input port of interruption, digital-to-analogue conversion can be typically used
Device.Using the circuit being made up of analog-digital converter, resistance, the interruption collection of signal can only be carried out and exported, but due to being interruption
The collection of property and output information, therefore power consumption is relatively low, this is the advantage of this kind of pattern.
However, if it is desired to which both information gathering structures are placed in same integrated chip so that chip can be certainly
Move and recognize and using the collection of continuous or intermittent information, and only use the difficulty in an interface, current or industry.
Patent No. CN201610790512.1 patent, discloses a kind of company for pyroelectric infrared human body inductor
Continuous and Segmented timed method, while the patent is also disclosed that a kind of structure, the structure turns RC oscillator module, modulus
Parallel operation module and reference oscillator module are placed in same IC chip, and it is infrared that realization is sent to human body self heat
The continuous signal collection and block signal collection of line signal, although such a structure can realize continuously or discontinuously signal acquisition,
It is that module number is more, power consumption is larger.And during work, signal is to first pass through RC oscillator, and then resistance capacitance shakes
Swing the frequency of device output and the frequency of reference oscillator is compared, could judge it is continuous acquisition signal after comparison, or point
Section collection signal, that is to say, that the structure of the online patent is, it is necessary to first compare, and rear judgement could select information gathering mode.Again
Person, with the structure of the first patent, can only realize the signal acquisition of most long fixed a period of time, it is impossible to realize complete continuous letter
Number collection.
Therefore in view of the shortcomings of the prior art, the present invention provides a kind of knot for being capable of automatic identification continuous signal and interval signal
Structure.The structure can first judge which kind of signal acquisition mode should be used automatically, and then output judges signal exactly, realize most
The signal acquisition and output services of low energy consumption, while the structure only needs to input using a pin so that sensor signal is adopted
Collection chip cost is substantially reduced.
The content of the invention
It is an object of the invention to provide a kind of structure for being capable of automatic identification continuous signal and interval signal.The present invention is related to
And structure the automatic knowledge of continuous signal acquisition mode and interval signal acquisition mode is only can be realized as with the input of pin
Not.
A kind of structure for being capable of automatic identification continuous signal and interval signal, it includes a signal acquisition input module
101, a judge module 104, an oscillation module 102, a D/A converter module 103, and a signal processing module
105.The described output end of signal acquisition input module 101 passes through a pin input and the input of judge module 104, oscillation mode
The input of block 102, the input of D/A converter module 103 are connected, and the described output end of judge module 104 and oscillation module 102 is defeated
Go out end to be connected, while the described output end of judge module 104 is connected with the output end of D/A converter module 103, described oscillation mode
The output end of block 102 and the output end of D/A converter module 103 are connected with the input of signal processing module 105, final process module 105
The signal that continuous signal or interval signal are converted into needing is exported.
Further, signal acquisition input module 101 is located at outside sensor acquisition chip.Signal acquisition input module includes
Two parallel circuits, one of branch road 111 is used for the input of continuous signal, and another branch road 112 is used for the defeated of interval signal
Enter.
Further, the branch road 111 inputted for continuous signal, it is possible to achieve any regulation of voltage, specifically, can be with
It is combination or a unadjustable resistance 12 and one for an adjustable resistor 11 and unadjustable electric capacity 22
A switch 41 is set on the combination of individual adjustable condenser 21, branch road.
Further, judge module 104, oscillation module 102, D/A converter module 103 are located at collecting sensor signal core
Inside piece.
Further, automatic decision process is contained in judge module 104, specifically, judge module at regular intervals can
Whether detection port has oscillator signal, if n (n>2) individual clk signal, expression is follow-on test pattern, closes digital-to-analogue conversion
Module；If not detecting oscillator signal, expression is interruption test pattern, closes oscillation module.
Further, positioned at the judge module 104, oscillation module 102, digital-to-analogue conversion of collecting sensor signal chip internal
Module 103 uses integration packaging.
Compared with prior art, the present invention realizes a port access signal, and realizes continuous signal and interruption
The automatic identification function of signal, and module number is less, and the cost of integrated circuit greatly reduces, and improve signal acquisition
With the speed of output.
Brief description of the drawings：
Fig. 1 is a kind of schematic diagram of new structure for being capable of automatic identification continuous signal and interval signal of the present invention.
Fig. 2 is the structural representation of the specific implementation case 1 of the present invention.
Fig. 3 is the structural representation of the specific implementation case 2 of the present invention.
Main element symbol description：
| Signal acquisition input module | 101 |
| Oscillation module | 102 |
| D/A converter module | 103 |
| Judge module | 104 |
| Processing module | 105 |
| The branch road of continuous signal input | 111 |
| The branch road of interval signal input | 112 |
| Variable resistor | 11 |
| Fixed resistance | 12 |
| Variable capacitance | 21 |
| Fixed capacity | 22 |
| Switch | 41 |
Following embodiment will further illustrate the present invention with reference to above-mentioned accompanying drawing.
Case 1 is embodied：
During rectification and purification, there are different boiling points according to different chemical composition, allow the first evaporation of low boiling point, boiling point is high
After evaporate, so oil bath pan is required for being kept for a period of time in corresponding boiling temperature, it is ensured that purification is complete, and is heating up
Cheng Zhong, only these boiling temperatures are key temperatures, and other temperature need not all be paid close attention to.Therefore oil bath pan is in control temperature
When, the temperature sensor signal acquisition chip course of work therein is as shown in Figure 2.Shutdown signal collection input module 101 is variable
Resistance 11, the branch road 111 of fixed capacity 22 switch 41, open variable resistor 11 and the branch road 112 of fixed resistance 12 switch 41, between allowing
The disconnected electric current of property branch road 112 is input to the judge module 104 inside temperature sensor signal acquisition chip by a pin, judges
As a result module 104 is not detected by oscillator signal by whether having oscillator signal every 10ms monitoring ports, then now judge module
104 selections interruption drainage patterns, close oscillation module 102, from D/A converter module 103, then D/A converter module 103
Processing module 105 is input a signal into, the control process for reaching that boiling point stops heating being realized by processing module 105.Due to be can
Become the combination of resistance 11 and constant volume resistance 12, therefore the voltage or electric current of signal acquisition input module 101 can change, therefore several passes
The temperature spot of key can also arbitrarily adjust switching.
Case 2 is embodied：
In the reactor for thering is gas to produce, in order to avoid exploding, it is necessary to be carried out to the air pressure in reactor for reactor
Monitoring, and constantly export real-time air pressure in real time.As shown in Fig. 2 reacting kettle inner pressure collecting sensor signal chip is worked
Journey is as follows：Variable resistor 11, the branch road 112 of fixed resistance 12 switch 41 are closed, variable resistor 11, the branch road of fixed capacity 22 is opened
111 switches 41, allow continuous signal to gather the electric current of branch road 111 and are input to by a pin in baroceptor signal acquisition chip
As a result the judge module 104 in portion, judge module 104 detects 3 by detecting whether port has oscillator signal 102 every 10ms
Individual oscillator signal, then the now selection of judge module 104 continuous signal drainage pattern, closes D/A converter module 103, opening is shaken
Module 102 is swung, then oscillation module inputs a signal into processing module 105, the real-time monitoring of air pressure is realized by processing module 105
With output.
Case 3 is embodied：
As shown in figure 3, the course of work of PM2.5 signal acquisition chips is as follows：When PM2.5 is top grade, good grade, letter is closed
Number collection input module 101 fixed resistance 12, the branch road 111 of variable capacitance 21 switch 41, open variable resistor 11 and fixed resistance
12 branch roads 112 switch 41, allows the interval signal collection electric current of branch road 112 to be input to PM2.5 sensor signals by a pin and adopts
Collect the judge module 104 of chip internal, judge module 104 every 10ms by detecting whether port has oscillator signal.As a result not
Oscillator signal is detected, then the now selection of judge module 104 interval signal drainage pattern, closes oscillation module 102, from digital-to-analogue
Modular converter 103, then D/A converter module 103 input a signal into processing module 105, top grade, good is recognized by processing module
The boundary value of level, thus it is known that when environmental quality is more excellent, which kind of grade PM2.5 is in.When PM2.5 concentration is higher,
Close variable resistor 11 and the branch road 112 of fixed resistance 12 switch 41, opening signal collection input module 101 fixed resistance 12, can
Become the branch road 111 of electric capacity 21 switch 41, allow continuous signal to gather the electric current of branch road 111 and PM2.5 sensors are input to by a pin
The judge module 104 of signal acquisition chip internal, judge module 104 by every 10ms detect port whether have oscillator signal,
As a result 4 oscillator signals are monitored, then the now selection of judge module 104 continuous signal drainage pattern, closes D/A converter module
103, oscillation module 102 is opened, then oscillation module 102 inputs a signal into processing module 105, is realized by processing module 105
The PM2.5 monitorings of Specific amounts.It is possible thereby to know, when environmental quality is poor, PM2.5 concrete numerical value.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of structure for being capable of automatic identification continuous signal and interval signal, it includes a signal acquisition input module, one
Individual judge module, an oscillation module, a D/A converter module, and a signal processing module.Described signal acquisition is defeated
Enter module output end with judge module input, oscillation module input, D/A converter module input to be connected, described judgement
Module output end is connected with oscillation module output end, while described judge module output end and D/A converter module output end phase
Even, described oscillation module output end and digital-to-analogue conversion output is connected with signal processing module input.
2. it is capable of the structure of automatic identification continuous signal and interval signal as claimed in claim 1, it is characterised in that：Described
Signal acquisition input module is located at collecting sensor signal chip exterior.
3. it is capable of the structure of automatic identification continuous signal and interval signal as claimed in claim 1, it is characterised in that：Described
Judge module, oscillation module, D/A converter module and signal processing module are located at sensor internal.
4. it is capable of the structure of automatic identification continuous signal and interval signal as claimed in claim 1, it is characterised in that：Described
Automatic identification continuous signal and the structure of interval signal only need to input using a pin on collecting sensor signal chip.
5. it is capable of the structure of automatic identification continuous signal and interval signal as claimed in claim 1, it is characterised in that：Described
Signal acquisition input module includes two parallel branches, and one of branch road is used for the input of continuous signal, and another branch road is used
In the input of interval signal.
6. it is capable of the structure of automatic identification continuous signal and interval signal as claimed in claim 5, it is characterised in that：Described
The parallel-connection structure of a fixed resistance, a variable capacitance and a switch composition is included for the branch road that continuous signal is inputted.
7. it is capable of the structure of automatic identification continuous signal and interval signal as claimed in claim 5, it is characterised in that：Described
The parallel-connection structure of a variable resistor, a fixed capacity and a switch composition is included for the branch road that continuous signal is inputted.
8. it is capable of the structure of automatic identification continuous signal and interval signal as claimed in claim 5, it is characterised in that：Described
The parallel-connection structure of a variable resistor, a fixed resistance and a switch composition is included for the branch road that interval signal is inputted.
9. it is capable of the structure of automatic identification continuous signal and interval signal as claimed in claim 1, it is characterised in that：Described
Automatic decision comparison process is set in judge module, and judge module can detect whether port has oscillator signal at regular intervals,
If n (n>2) individual clk signal, expression is follow-on test pattern, closes D/A converter module；If not detecting vibration
Signal, expression is interruption test pattern, closes oscillation module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710148560.5A CN107305357B (en) | 2017-03-14 | 2017-03-14 | Novel structure capable of automatically identifying continuous signal and discontinuous signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710148560.5A CN107305357B (en) | 2017-03-14 | 2017-03-14 | Novel structure capable of automatically identifying continuous signal and discontinuous signal |
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| Publication Number | Publication Date |
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| CN107305357A true CN107305357A (en) | 2017-10-31 |
| CN107305357B CN107305357B (en) | 2023-09-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115856588A (en) * | 2023-02-22 | 2023-03-28 | 长鑫存储技术有限公司 | Chip test board and test method |
| CN107305357B (en) * | 2017-03-14 | 2023-09-01 | 苏州格美芯微电子有限公司 | Novel structure capable of automatically identifying continuous signal and discontinuous signal |
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| CN104330120A (en) * | 2014-10-28 | 2015-02-04 | 姜跃炜 | Flow rate detection method for low-energy-consumption ultrasonic flow rate meter and system |
| US20150066438A1 (en) * | 2013-08-30 | 2015-03-05 | Broadcom Corporation | Low-power data acquisition system and sensor interface |
| CN106125154A (en) * | 2016-08-31 | 2016-11-16 | 苏州华芯微电子股份有限公司 | A kind of timing method for pyroelectric infrared human body induction apparatus and device thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107305357B (en) * | 2017-03-14 | 2023-09-01 | 苏州格美芯微电子有限公司 | Novel structure capable of automatically identifying continuous signal and discontinuous signal |
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- 2017-03-14 CN CN201710148560.5A patent/CN107305357B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101661276A (en) * | 2009-09-18 | 2010-03-03 | 东北大学 | Universal data acquisition unit and data acquisition method thereof |
| US20150066438A1 (en) * | 2013-08-30 | 2015-03-05 | Broadcom Corporation | Low-power data acquisition system and sensor interface |
| CN104330120A (en) * | 2014-10-28 | 2015-02-04 | 姜跃炜 | Flow rate detection method for low-energy-consumption ultrasonic flow rate meter and system |
| CN106125154A (en) * | 2016-08-31 | 2016-11-16 | 苏州华芯微电子股份有限公司 | A kind of timing method for pyroelectric infrared human body induction apparatus and device thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107305357B (en) * | 2017-03-14 | 2023-09-01 | 苏州格美芯微电子有限公司 | Novel structure capable of automatically identifying continuous signal and discontinuous signal |
| CN115856588A (en) * | 2023-02-22 | 2023-03-28 | 长鑫存储技术有限公司 | Chip test board and test method |
| CN115856588B (en) * | 2023-02-22 | 2023-08-04 | 长鑫存储技术有限公司 | Chip test board and test method |
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| CN107305357B (en) | 2023-09-01 |
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