CN105302032A - Control device for realizing intermittent working of single-chip microcomputer - Google Patents
Control device for realizing intermittent working of single-chip microcomputer Download PDFInfo
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- CN105302032A CN105302032A CN201510835831.5A CN201510835831A CN105302032A CN 105302032 A CN105302032 A CN 105302032A CN 201510835831 A CN201510835831 A CN 201510835831A CN 105302032 A CN105302032 A CN 105302032A
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- 230000005669 field effect Effects 0.000 claims abstract description 62
- 230000001939 inductive effect Effects 0.000 claims description 32
- 235000014676 Phragmites communis Nutrition 0.000 claims description 13
- 230000011514 reflex Effects 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 9
- 230000003111 delayed effect Effects 0.000 claims description 5
- 230000011664 signaling Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 3
- -1 electricity Substances 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 abstract 2
- 238000011084 recovery Methods 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 abstract 1
- 238000012913 prioritisation Methods 0.000 description 8
- 239000012528 membrane Substances 0.000 description 7
- 230000005693 optoelectronics Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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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
- 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
- G05B19/0428—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
-
- 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
- G05B2219/2656—Instrumentation
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Relay Circuits (AREA)
Abstract
The invention relates to a control device for realizing intermittent working of a single-chip microcomputer. The control device comprises a trigger signal generation device used for generating trigger signals and provided with a first delay grade for delaying the trigger signals, and a transistor time-delay relay electrically connected with the trigger signal generation device and provided with a second delay grade, the transistor time-delay relay is used for receiving the trigger signals, and switching on, delaying, and switching off a work power supply of the single-chip microcomputer, the delay amount of the first delay grade is larger than the delay amount of the second delay amount, the transistor time-delay relay comprises a trigger circuit and a rapid discharge recovery circuit, the trigger circuit is formed by field effect transistors, resistors, and capacitors, and the rapid discharge recovery circuit is formed by the field effect transistors and the resistors. According to the transistor time-delay relay, contacts are prevented, the size is small, the electricity consumption is low, the cost is low, interferences are prevented, the performance is stable, integration and packaging are facilitated, and the metering is accurate in the application of intelligent meters such as water, electricity, and gas meters.
Description
Technical field
The present invention relates to a kind of timing relay, be applicable to counting assembly or the similar control device of the measuring instruments such as water, electricity, gas table, specifically, relating to a kind of for realizing single-chip microcomputer intermittently used control device, belonging to electronic technology field.
Background technology
The sensing gauge counting apparatus of existing various measuring instrument is generally the mode adopting single-chip microcomputer to gather measurement sensory signal, as: as described in Chinese patent 20220531067.4,201110267269.2,201020544489.6.These modes are all the states allowing single-chip microcomputer be in energising work for a long time, then gather the pulse or the switching signal that come from sensor.When no matter whether signal come or not, single-chip microcomputer all will keep the open state that is energized.Bring a lot of problem thus.First be exactly the problem of external interference, in the time of single-chip microcomputer booting wait, if meet comparatively high reject signal, counting will produce error, even directly causes single chip microcomputer halt; Next is the problem of power consumption, although single-chip microcomputer power consumption is few, for only leaning on small (even button) battery powered circuit, further power saving is also necessary; In addition, because the irregular change of extraneous signal and single-chip microcomputer are difficult to reasons such as identifying, cause the situation of counting error also a lot; Also have due to the machine failure rate problem etc. of starting shooting and bringing that is energized for a long time.In view of above situation, also have some same devices to have employed the working method of the standby dormancy of single-chip microcomputer, but this mode is "on" position after all, single-chip microcomputer is still difficult to resist external various interference.
Summary of the invention
The technical problem to be solved in the present invention is for above deficiency, provides a kind of for realizing single-chip microcomputer intermittently used control device, overcomes to be energized when single-chip microcomputer does not count in prior art that standby brought power consumption is many, counting is inaccurate and the defect of operation troubles.After adopting control device of the present invention; achieve single-chip microcomputer energising work when counting; after counting, power-off is shut down; allow the number of times of single-chip microcomputer start-stop as the new working method of counts and device; avoid the interference of magnetoelectricity, electrostatic, thunderbolt; solve gauge table teletransmission and measure inaccurate root problem, and control device adopts the break-make of transistor timing relay control single chip computer, have that volume is little, little power consumption, cost are low, be convenient to encapsulation and the advantage of stable performance.
For solving above technical matters, the present invention is by the following technical solutions: one is used for realizing single-chip microcomputer intermittently used control device, it is characterized in that: described control device comprises: trigger pip generation device, be used for producing trigger pip and there is the first delay-level, with delayed trigger signal; Transistor timing relay, is electrically connected with trigger pip generation device and has the second delay-level, receives after the working power conducting of single-chip microcomputer also postpones by trigger pip and closes; The retardation of described first delay-level is larger than the retardation of the second delay-level.
A kind of prioritization scheme, described trigger pip generation device comprises: inductive switch, and one end is connected with power supply, and the other end is connected with transistor timing relay; Sensing element, is arranged on character wheel, and when character wheel rotates, sensing element can coordinate with inductive switch.
Another kind of prioritization scheme, described sensing element is permanent magnet.
Another prioritization scheme, the quantity of described sensing element is one; Described inductive switch is dry reed switch or Hall switch.
Further prioritization scheme, the quantity of described sensing element is two, and the polarity of two sensing elements is contrary and be symmetricly set on character wheel, and described trigger pip generation device also comprises an auxiliary induction element being used for coordinating with sensing element.Further prioritization scheme, described inductive switch is dry reed switch.
Further prioritization scheme, described transistor timing relay comprises: trigger circuit, be made up of field effect transistor Q1, resistance R1 and electric capacity C1, the source electrode of described field effect transistor Q1 connects the output terminal of inductive switch, the drain electrode of described field effect transistor Q1 connects single-chip microcomputer, the grid of described field effect transistor Q1 is through electric capacity C1 ground connection, and described resistance R1 is connected between the source electrode of field effect transistor Q1 and the grid of field effect transistor Q1.
A kind of prioritization scheme, described transistor timing relay also comprises: rapid discharge reflex circuit, be made up of field effect transistor Q2, resistance R2, resistance R3 and resistance R4, one end of grid connecting resistance R2 of described field effect transistor Q2, one end of resistance R3, the source electrode of another termination field effect transistor Q1 of described resistance R2, the other end ground connection of described resistance R3, the source electrode of described field effect transistor Q2 connects the grid of field effect transistor Q1, and the drain electrode of described field effect transistor Q2 is through resistance R4 ground connection.
Another kind of prioritization scheme, described transistor timing relay also comprises rapid discharge reflex circuit, and described rapid discharge reflex circuit is resistance R, the output terminal of the end thereof contacts signalling generation device of resistance R, the other end ground connection of resistance R.
After the present invention adopts above technical scheme; compared with prior art; have the following advantages: transistor timing relay control single chip computer conducting when trigger pip generation device sends signal; complete counting load, time delay terminate after by transistor timing relay control single chip computer automatic shutdown; achieve single-chip microcomputer energising work when counting; after counting, power-off is shut down; allow the number of times of single-chip microcomputer start-stop as the new working method of counts and device; avoid the interference of magnetoelectricity, electrostatic, thunderbolt, accurate measurement.
Described control device adopts the break-make of transistor timing relay control single chip computer, and transistor timing relay is made up of field effect transistor, electric capacity and resistance, contactless, volume is little, little power consumption, cost are low, anti-interference and stable performance, are convenient to integration packaging.
Below in conjunction with drawings and Examples, the present invention is described in detail.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of control device in the embodiment of the present invention, accompanying drawing 2 is electrical schematic diagrams of control device in the embodiment of the present invention 1, accompanying drawing 3 is electrical schematic diagrams of control device in the embodiment of the present invention 2, accompanying drawing 4 is another kind of electrical schematic diagrams of control device in the embodiment of the present invention, in figure, 1-transistor timing relay, 2-single-chip microcomputer, 3-character wheel, 4-inductive switch, 5-sensing element, 6-auxiliary induction element, 7-trigger pip generation device, 8-trigger circuit, 9-rapid discharge reflex circuit.
Embodiment
Embodiment 1,
As shown in Figure 1, one is used for realizing single-chip microcomputer intermittently used control device, comprise trigger pip generation device 7 and the transistor timing relay 1 of electrical connection, transistor timing relay 1 is electrically connected with output terminal load, in the present embodiment, output terminal load is single-chip microcomputer 2, and the input end of single-chip microcomputer 2 is connected with transistor timing relay 1.Trigger pip generation device 7 is for generation of trigger pip and have the first delay-level, with delayed trigger signal, transistor timing relay 1 has the second delay-level, receive after the working power conducting of single-chip microcomputer 2 also postpones by trigger pip and close, the retardation of described first delay-level is larger than the retardation of the second delay-level.
As shown in Figure 2, described trigger pip generation device 7 comprises inductive switch 4, one end of inductive switch 4 is connected with power supply, the other end of inductive switch 4 is connected with transistor timing relay 1, the side of inductive switch 4 is provided with character wheel 3, character wheel 3 is provided with one piece of sensing element 5, and sensing element 5 rotates with the rotation of character wheel 3, and when character wheel 3 rotates, sensing element 5 coordinates with inductive switch 4.
Described transistor timing relay 1 comprises trigger circuit 8 and the rapid discharge reflex circuit 9 of electrical connection, described trigger circuit 8 comprise field effect transistor Q1, resistance R1 and electric capacity C1, the source electrode of field effect transistor Q1 connects the output terminal of inductive switch 4, the drain electrode of field effect transistor Q1 connects single-chip microcomputer 2, the grid of field effect transistor Q1 is through electric capacity C1 ground connection, and resistance R1 is connected between the source electrode of field effect transistor Q1 and the grid of field effect transistor Q1.
Described rapid discharge reflex circuit 9 comprises field effect transistor Q2, resistance R2, resistance R3 and resistance R4, one end of grid connecting resistance R2 of field effect transistor Q2, one end of resistance R3, the source electrode of another termination field effect transistor Q1 of resistance R2, the other end ground connection of resistance R3, the source electrode of field effect transistor Q2 connects the grid of field effect transistor Q1, and the drain electrode of field effect transistor Q2 is through resistance R4 ground connection.
In the present embodiment, dry reed switch selected by inductive switch 4, sensing element 5 selects permanent magnet, during application, character wheel 3 rotates, when permanent magnet turns in the induction range of dry reed switch with character wheel 3, after dry reed switch conducting, character wheel 3 is rotated further, electric current arrives the grid of field effect transistor Q1 and the tie point of electric capacity C1 through resistance R1, and now this current potential is low, and field effect transistor Q1 is in conducting state, electric current is that single-chip microcomputer 2 provides working power through field effect transistor Q1, and single-chip microcomputer 2 works on power.Simultaneously, electric current charges to electric capacity C1 through resistance R2, electric capacity C1 is full of the retardation that the electric time equals the second delay-level, when the voltage of electric capacity C1 is elevated to more than the gate threshold voltage of field effect transistor Q1, field effect transistor Q1 ends, and cut off the power supply of single-chip microcomputer 2, now single-chip microcomputer 2 also completes preplanned mission, power-off shutdown, reaches the object of delay switching-off thus.When permanent magnet turns to character wheel 3 induction range leaving dry reed switch, dry reed switch disconnects, power remove.Permanent magnet and dry reed switch from be engaged to the retardation that the time terminating to coordinate equals the first delay-level.Now, the grid of field effect transistor Q2 through resistance R3 ground connection, current potential step-down, field effect transistor Q2 conducting, the electric current that electric capacity C1 stores discharges fast through field effect transistor Q2 and resistance R4, makes the grid voltage step-down again of field effect transistor Q1, return to original state, wait for that dry reed switch is connected next time.Because the retardation of the first delay-level is larger than the retardation of the second delay-level, so, transistor timing relay 1 first delayed startup single-chip microcomputer 2, again single-chip microcomputer 2 is shut down after completing the task of start counting, then dry reed switch disconnects again, returns to original state, goes round and begins again with this.
The time of delay switching-off can be adjusted by the value changing resistance R1 and electric capacity C1.
When sensing element 5 described in the present embodiment is permanent magnet, inductive switch 4 also can select Hall switch.
Embodiment 2
As shown in Figure 1, one is used for realizing single-chip microcomputer intermittently used control device, comprise trigger pip generation device 7 and the transistor timing relay 1 of electrical connection, transistor timing relay 1 is electrically connected with output terminal load, in the present embodiment, output terminal load is single-chip microcomputer 2, the input end of single-chip microcomputer 2 is connected with transistor timing relay 1, the output head grounding of single-chip microcomputer 2, trigger pip generation device 7 is for generation of trigger pip and have the first delay-level, with delayed trigger signal, transistor timing relay 1 has the second delay-level, receive after the working power conducting of single-chip microcomputer 2 also postpones by trigger pip and close, the retardation of described first delay-level is larger than the retardation of the second delay-level.
As shown in Figure 3, described trigger pip generation device 7 comprises inductive switch 4, described inductive switch 4 is dry reed switch, one end of inductive switch 4 is connected with power supply, the other end of inductive switch 4 is connected with transistor timing relay 1, the side of inductive switch 4 is provided with auxiliary induction element 6, described auxiliary induction element 6 is permanent magnet, character wheel 3 is provided with in the position corresponding with inductive switch 4, character wheel 3 is provided with one group of opposite polarity sensing element 5, described sensing element 5 is permanent magnet, sensing element 5 rotates with the rotation of character wheel 3, inductive switch 4 is closed or disconnection with the opposed polarity of sensing element 5, and remain closed or off-state, until the sensing element 5 of another polarity could transition status when inductive switch 4, auxiliary induction element 6 remains closed or off-state for making inductive switch 4, increase distance of reaction, improve reliability of contact.Adopt this auxiliary induction element 6 and be provided with the control mode of the contrary sensing element 5 of one group of magnetic, inductive switch 4 is made to be provided with the self-retaining function of logical and disconnected two states, the state that power supply is inputted is provided with suitable stability and isotropism, the stroke opened and close respectively accounts for 50%, has coordinated the work of transistor timing relay 1 better.
Described transistor timing relay 1 comprises trigger circuit 8 and the rapid discharge reflex circuit 9 of electrical connection, described trigger circuit 8 comprise field effect transistor Q1, resistance R1 and electric capacity C1, the source electrode of field effect transistor Q1 connects the output terminal of trigger pip generation device 7, i.e. inductive switch 4, the drain electrode of field effect transistor Q1 connects single-chip microcomputer 2, the grid of field effect transistor Q1 is through electric capacity C1 ground connection, and resistance R1 is connected between the source electrode of field effect transistor Q1 and the grid of field effect transistor Q1.
Described rapid discharge reflex circuit 9 comprises field effect transistor Q2, resistance R2, resistance R3 and resistance R4, one end of grid connecting resistance R2 of field effect transistor Q2, one end of resistance R3, the source electrode of another termination field effect transistor Q1 of resistance R2, the other end ground connection of resistance R3, the source electrode of field effect transistor Q2 connects the grid of field effect transistor Q1, and the drain electrode of field effect transistor Q2 is through resistance R4 ground connection.
In the present embodiment, the principle of work of control device is with embodiment 1, therefore repeats no more.
Field effect transistor described in above-described embodiment also can select switching tube, thyristor, tunneltron OR circuit etc. to substitute as the control circuit of on-off circuit, and its course of work is identical with the switch control rule action principle of field effect transistor.
Output terminal load described in above-described embodiment also can be other control elements beyond single-chip microcomputer.
Open occasion infrequently for inductive switch 4, the rapid discharge reflex circuit 9 in above embodiment also can realize with a resistance R, and as shown in Figure 4, the charging of electric capacity C1 is discharged by resistance R1 and resistance R.Even do not need to arrange rapid discharge reflex circuit 9, the electric leakage with electric capacity C1 after power remove self can restPose, and according to statement, those skilled in the art can clearly clear and definite this technical scheme, therefore no longer accompanying drawing represents.
Inductive switch 4 in above-described embodiment also can select optoelectronic switch, when inductive switch 4 is optoelectronic switch, sensing element 5 on character wheel 3 is reflective membrane, reflective membrane covers a part for character wheel, reflective membrane rotates with the rotation of character wheel 3, the radiating portion of optoelectronic switch launches light beam, when reflective membrane to turn to the reflected range of light beam with character wheel, light beam through reflective membrane reflection laggard enter the receiving unit of optoelectronic switch, optoelectronic switch conducting, character wheel 3 is rotated further, until reflective membrane leaves the reflected range of light beam, optoelectronic switch disconnects, reflective membrane and optoelectronic switch from be engaged to the retardation that the time terminating to coordinate equals the first delay-level, the retardation of the first delay-level is greater than the retardation of the second delay-level.
The above is the citing of best mode for carrying out the invention, and the part wherein do not addressed in detail is the common practise of those of ordinary skill in the art.Protection scope of the present invention is as the criterion with the content of claim, and any equivalent transformation carried out based on technology enlightenment of the present invention, also within protection scope of the present invention.
Claims (9)
1. for realizing a single-chip microcomputer intermittently used control device, it is characterized in that: described control device comprises: trigger pip generation device (7), being used for producing trigger pip and there is the first delay-level, with delayed trigger signal; Transistor timing relay (1), is electrically connected with trigger pip generation device (7) and has the second delay-level, receives after the working power conducting of single-chip microcomputer (2) also postpones by trigger pip and closes; The retardation of described first delay-level is larger than the retardation of the second delay-level.
2. one according to claim 1 is used for realizing single-chip microcomputer intermittently used control device, it is characterized in that: described trigger pip generation device (7) comprising: inductive switch (4), one end is connected with power supply, and the other end is connected with transistor timing relay (1); Sensing element (5), is arranged on character wheel (3), and when character wheel (3) rotates, sensing element (5) can coordinate with inductive switch (4).
3. one according to claim 2 is used for realizing single-chip microcomputer intermittently used control device, it is characterized in that: described sensing element (5) is permanent magnet.
4. one according to claim 3 is used for realizing single-chip microcomputer intermittently used control device, it is characterized in that: the quantity of described sensing element (5) is one; Described inductive switch (4) is dry reed switch or Hall switch.
5. one according to claim 3 is used for realizing single-chip microcomputer intermittently used control device, it is characterized in that: the quantity of described sensing element (5) is two, the polarity of two sensing elements (5) is contrary and be symmetricly set on character wheel (3); Described trigger pip generation device (7) also comprises an auxiliary induction element (6) being used for coordinating with sensing element (5).
6. one according to claim 5 is used for realizing single-chip microcomputer intermittently used control device, it is characterized in that: described inductive switch (4) is dry reed switch.
7. be used for realizing single-chip microcomputer intermittently used control device according to the one of claim 2-6 described in one of them, it is characterized in that: described transistor timing relay (1) comprising: trigger circuit (8), is made up of field effect transistor Q1, resistance R1 and electric capacity C1; The source electrode of described field effect transistor Q1 connects the output terminal of inductive switch (4); The drain electrode of described field effect transistor Q1 connects single-chip microcomputer (2); The grid of described field effect transistor Q1 is through electric capacity C1 ground connection; Described resistance R1 is connected between the source electrode of field effect transistor Q1 and the grid of field effect transistor Q1.
8. one according to claim 7 is used for realizing single-chip microcomputer intermittently used control device, it is characterized in that: described transistor timing relay (1) also comprises: rapid discharge reflex circuit (9), is made up of field effect transistor Q2, resistance R2, resistance R3 and resistance R4; One end of grid connecting resistance R2 of described field effect transistor Q2, one end of resistance R3; The source electrode of another termination field effect transistor Q1 of described resistance R2; The other end ground connection of described resistance R3; The source electrode of described field effect transistor Q2 connects the grid of field effect transistor Q1; The drain electrode of described field effect transistor Q2 is through resistance R4 ground connection.
9. one according to claim 7 is used for realizing single-chip microcomputer intermittently used control device, it is characterized in that: described transistor timing relay (1) also comprises rapid discharge reflex circuit (9), described rapid discharge reflex circuit (9) is resistance R, the output terminal of the end thereof contacts signalling generation device (7) of resistance R, the other end ground connection of resistance R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510835831.5A CN105302032A (en) | 2015-11-26 | 2015-11-26 | Control device for realizing intermittent working of single-chip microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510835831.5A CN105302032A (en) | 2015-11-26 | 2015-11-26 | Control device for realizing intermittent working of single-chip microcomputer |
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| Publication Number | Publication Date |
|---|---|
| CN105302032A true CN105302032A (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510835831.5A Pending CN105302032A (en) | 2015-11-26 | 2015-11-26 | Control device for realizing intermittent working of single-chip microcomputer |
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| Country | Link |
|---|---|
| CN (1) | CN105302032A (en) |
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- 2015-11-26 CN CN201510835831.5A patent/CN105302032A/en active Pending
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Application publication date: 20160203 |