CN203825217U - Micro-power consumption tipping bucket type rainfall pulse signal acquisition device - Google Patents
Micro-power consumption tipping bucket type rainfall pulse signal acquisition device Download PDFInfo
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- CN203825217U CN203825217U CN201420121165.XU CN201420121165U CN203825217U CN 203825217 U CN203825217 U CN 203825217U CN 201420121165 U CN201420121165 U CN 201420121165U CN 203825217 U CN203825217 U CN 203825217U
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Abstract
The utility model relates to a micro-power consumption tipping bucket type rainfall pulse signal acquisition device. The micro-power consumption tipping bucket type rainfall pulse signal acquisition device comprises a first watch-over circuit, a second watch-over circuit, a working circuit, a watch-over power source and a working power source; the first watch-over circuit and the second watch-over circuit are respectively a CMOS logic circuit adopting micro-power consumption design; the working current of the watch-over circuits is microampere-level current; the working power source has a switched-on state and a switched-off state, and is in the switched-off state in a non-rainfall period; the first watch-over circuit latches pulse signals of a tipping bucket type rainfall sensor in a rainfall period and generates wake-up signals; the second watch-over circuit receives the wake-up signals and controls the working power source and makes the working power source switched on so that the working power source can provide power for the working circuit; and the working circuit reads the pulse signals latched by the first watch-over circuit and controls the second watch-over circuit and makes the second watch-over circuit switch off the working power source after pulse signal data processing. The micro-power consumption tipping bucket type rainfall pulse signal acquisition device of the utility model works in a microampere-level power consumption state in the non-rainfall period, and therefore, energy can be saved, the service life of a one-shot battery can be prolonged.
Description
Technical field
The utility model relates to data acquisition technology field, be particularly related to a kind of micro-power consumption tipping bucket type rainfall pulse signal acquisition device, tipping bucket rain gauge pulse signal acquisition for the automatic monitoring such as water conservancy, the hydrology, town and country flood control, geologic hazard field, can comprehensively reduce pulse data signal harvester power consumption, avoid losing rainfall pulse signal simultaneously.
Background technology
Tipping bucket rain gauge is applicable to the relevant departments such as observatory, hydrometric station, agricultural, national defence and is used for remote measurement rainfall amount, rainfall intensity, rainfall beginning and ending time, for the scheduling of controlling flood, supply water, the management of hydropower reservoir station regimen, for object automatic system of hydrological data acquisition and transmission, automatic field, observing and predicting station, is rainfall survey sensor.Tipping bucket rain gauge comprises the parts such as tipping bucket, magnet steel, tongue tube, tipping bucket upset during rainfall, when stirring with tipping bucket, the magnet steel on tipping bucket sidewall scans from tongue tube is other, make tongue tube break-make send pulse count signal, gather and record this pulse data signal, can obtain the rainfall amount of certain millimeter.
At present, conventional tipping bucket rain gauge pulse signal acquisition mode is: the pulse signal producing by the tongue tube adhesive of tipping bucket rain gauge and while disconnecting directly accesses the PIO port of embedded MCU, by PIO, interrupts or program scans PIO port processing pulse signal.This kind of mode need to be as the embedded MCU of harvester and peripheral circuit thereof all the time in the state of working on power, will consume certain electric energy like this, be not easy to the power consumption of harvester to be reduced to microampere order state, be that power consumption is relatively high, and then also can reduce the serviceable life of the harvester battery that adopts primary cell power supply.
Utility model content
The utility model is high and harvester one-shot battery problem on the low side in serviceable life for current tipping bucket rain gauge pulse signal acquisition mode power consumption, a kind of micro-power consumption tipping bucket type rainfall pulse signal acquisition device is provided, realization is in the non-rainfall of overwhelming majority period, this harvester works in the micro-power consumption state of microampere order, there is the saving energy, extend the one-shot battery advantage in serviceable life, be particularly useful for field environment operation.
The technical solution of the utility model is as follows:
A kind of micro-power consumption tipping bucket type rainfall pulse signal acquisition device, it is characterized in that, comprise the first circuit on duty, the second circuit on duty, operating circuit, power supply on duty, working power, described the first circuit on duty and the second circuit on duty are the CMOS logical circuit of micro-power consumption design, the working current of described each circuit on duty is microampere order, described operating circuit comprises MCU and peripheral circuit thereof, described power supply on duty is each circuit supply on duty, described working power is operating circuit power supply, described working power have open with closed condition and when the non-rainfall in closed condition, described the first circuit on duty during by rainfall the pulse signal of tipping bucket rain gauge latch and produce wake-up signal, thereby described the second circuit on duty receives wake-up signal and controls working power and open as operating circuit power supply, described operating circuit reads pulse signal that the first circuit on duty latchs and cuts out working power carrying out controlling the second circuit on duty after pulse data signal is processed.
Described operating circuit is removed described latch signal after reading the pulse signal that the first circuit on duty latchs, for next rainfall latch pulse signal is prepared.
Described operating circuit carries out pulse data signal to be processed and to have comprised the Nonvolatile memory of pulse signal and to have sent described data message to the data center of far-end.
Described the first circuit on duty comprises pulse forming circuit and the pulse latch cicuit connecting successively, the pulse signal that described pulse forming circuit sends tipping bucket rain gauge is shaped to the pulse signal of negative logic and produces wake-up signal, described pulse forming circuit is connected with the second circuit on duty, and described pulse latch cicuit receives and latch the pulse signal of described negative logic.
Described the second circuit on duty comprises rest-set flip-flop, described rest-set flip-flop overturns under the control of wake-up signal and then to control working power open-minded, upset and then control working power and close under the control of the power down control output end mouth of the MCU of described rest-set flip-flop in operating circuit.
Described operating circuit is processed laggard line delay and is processed carrying out pulse data signal, and whether the logic state that further judge the first circuit latch signal on duty after time delay have catchment generation to detect, in described logic state, be to control the second circuit on duty at 0 o'clock to close working power.
Technique effect of the present utility model is as follows:
Micro-power consumption tipping bucket type rainfall pulse signal acquisition device that the utility model relates to, comprise the first circuit on duty, the second circuit on duty, operating circuit, power supply on duty, working power, the micro-power consumption design of circuit on duty mainly comprises the CMOS logical circuit of micro-power consumption low voltage designs, circuit on duty is microampere order by the working current of the long-term power supply of power supply on duty and circuit on duty, operating circuit is powered by the working power that can turn-off, operating circuit has enough processing poweies to the pulse data signal of tipping bucket rain gauge, but only within the time period of rainfall, work, between other non-flush period, the working power of the power supply of MCU and peripheral circuit thereof is turned off, do not consume electric energy, now only has circuit working on duty, therefore harvester of the present utility model comprehensive power consumption is now reduced to microampere order state, when catchment produces, the first circuit on duty latchs the pulse signal (being rainfall signal) that tipping bucket rain gauge produces, and produce wake-up signal and by the second circuit on duty, control operating circuit (MCU and peripheral circuit thereof) and power up work, operating circuit controls the second circuit on duty and cuts out working power after the work such as collection, processing rainfall signal complete, and automatically closes MCU and peripheral circuit power supply thereof.Like this, in the short time only occurring at catchment, MCU and peripheral circuit thereof that power consumption is higher are just worked, the non-rainfall of the overwhelming majority only has each circuit working on duty period, now this harvester works in the micro-power consumption state of microampere order, can greatly reduce the comprehensive power consumption of harvester, extend the serviceable life of harvester one-shot battery, avoid losing rainfall pulse signal simultaneously, and harvester can adopt disposable battery long-term work or adopt the Power supply continuous workings on duty such as small-scale sun power, be more suitable for field environment operation, the in the situation that of the power consumption of microampere order state, realize rainfall pulse signal acquisition, be convenient to the follow-up objects such as precipitation remote measurement.
The first circuit on duty arranges pulse forming circuit and pulse latch cicuit, pulse forming circuit is connected with tipping bucket rain gauge, spring for reed switch conduction in filtering tipping bucket rain gauge and shutdown moment generation is disturbed, and forms the monostable pulse signal of negative logic of suitable pulsewidth.Pulse latch cicuit is micro-power consumption low voltage cmos logical circuit, and easy realization simple in structure has temporary and memory function, is convenient to latch the pulse signal of tipping bucket rain gauge, and facilitates MCU to read and detect the pulse signal that this latchs.
Operating circuit is processed laggard line delay at pulse data signal, further verify MCU input port logic state, read the pulse signal that d type flip flop latchs and judge whether rainfall continues, in logic, be that 1 o'clock operating circuit continues this pulse data signal of acquisition and processing, in logic, be automatically to close MCU and peripheral circuit power supply thereof at 0 o'clock, like this when continuing rainfall, number of times is closed in the power supply that has greatly reduced operating circuit, after completing, rainfall closes again its power supply, can complete more efficiently tipping bucket type rainfall pulse signal acquisition, improve the work efficiency of harvester described in the utility model.
Rest-set flip-flop circuit is simple, can adopt two rejection gates to form, and rest-set flip-flop is all upsets under the control of wake-up signal and MCU power down control output end mouth, controls working power open or close by the state of rest-set flip-flop.
Accompanying drawing explanation
Fig. 1 is the preferred structure block diagram of the micro-power consumption tipping bucket type of the utility model rainfall pulse signal acquisition device.
Fig. 2 is the electrical block diagram of the micro-power consumption tipping bucket type of the utility model rainfall pulse signal acquisition device.
Fig. 3 is the workflow diagram of the micro-power consumption tipping bucket type of the utility model rainfall pulse signal acquisition device.
Fig. 4 is the preferred workflow diagram of the micro-power consumption tipping bucket type of the utility model rainfall pulse signal acquisition device.
In figure, each label lists as follows:
1-tipping bucket rain gauge; 2-first circuit on duty; 3-second circuit on duty; 4-operating circuit; U1-power supply on duty; U2-working power.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described.
The utility model discloses a kind of micro-power consumption tipping bucket type rainfall pulse signal acquisition device, comprise the first circuit on duty, the second circuit on duty, operating circuit, power supply on duty, working power, the first circuit on duty and the second circuit on duty are the CMOS logical circuit of micro-power consumption low voltage designs, the working current of each circuit on duty is microampere order, operating circuit comprises MCU and peripheral circuit thereof, power supply on duty is each circuit supply on duty, working power is operating circuit power supply, working power have open with closed condition and when the non-rainfall in closed condition, the preferred structure block diagram of harvester described in the utility model as shown in Figure 1, preferably the first circuit on duty comprises pulse forming circuit and the pulse latch cicuit connecting successively, preferably the second circuit on duty is working power control circuit, the input end of pulse forming circuit is connected with the output terminal of tipping bucket rain gauge, the input end that the output terminal of pulse forming circuit connects pulse latch cicuit is connected with the input end of working power control circuit, the output terminal of working power control circuit connects the input end of pulse latch cicuit, pulse latch cicuit is connected with operating circuit, the power down control output end of operating circuit is connected with working power control circuit.
The pulse signal that tipping bucket rain gauge sends inputs to pulse forming circuit, pulse forming circuit is shaped to described pulse signal the pulse signal of negative logic and produces wake-up signal, pulse latch cicuit receives and latchs the pulse signal of this negative logic, working power control circuit receives wake-up signal, this wake-up signal essence is upper electric control signal, thereby working power control circuit receives, controls working power after this wake-up signal and opens as operating circuit power supply; Operating circuit reads the pulse signal of pulse latch circuit latches and after reading, removes described latch signal, for next rainfall latch pulse signal is prepared, operating circuit carry out again pulse data signal processing as complete the Nonvolatile memory of pulse signal and to the data center of far-end, send as described in the work such as data message, operating circuit is carried out power down to working power control circuit again and is controlled after work completes, and by working power control circuit, closes working power.
Whether the circuit on duty that micro-power consumption tipping bucket type rainfall pulse signal acquisition device of the present utility model designs by micro-power consumption is carried out rainfall testing, when rainfall not, only has the circuit working on duty of extremely low microampere rank power consumption, detect rainfall and occur.During rainfall, circuit on duty latchs catchment signal, and produces that WAKEUP wake-up signal is controlled MCU and peripheral circuit powers up work, gathers, processes catchment signal, work automatically to close MCU and peripheral circuit is powered afterwards.
Fig. 2 is the electrical block diagram of the micro-power consumption tipping bucket type of the utility model rainfall pulse signal acquisition device, and this device comprises the first circuit 2, second on duty circuit 3 on duty, operating circuit 4, power supply U1 on duty, working power U2.The hardware circuit that can be understood as the utility model harvester is divided into circuit on duty and operating circuit two large divisions, the first circuit 2 on duty in circuit on duty and the second circuit 3 on duty adopt micro-power consumption design, when on duty, its operating circuit can be down to microampere order, operating circuit 4 has enough processing poweies, but only within a bit of time that rainfall occurs, work, other overwhelming majority time is in off-position.The power supply of harvester is divided into two parts, and wherein a part is the power supply U1 on duty of micro-power consumption, and this power supply U1 on duty only consumes the quiescent current of several microamperes, is circuit supply on duty for a long time; Another part is working power U2, can open as requested or turn-off, and has certain power supply capacity, is MCU and peripheral circuit power supply thereof.The rest-set flip-flop that the second circuit 3 on duty preferably adopts two NOR gates to form, this rest-set flip-flop is all upsets under the control of the power down control output end of WAKEUP wake-up signal and MCU mouth PIO_SHDN, control working power open or disconnect by the state of rest-set flip-flop.The first circuit 2 on duty comprises pulse forming circuit and pulse latch cicuit, and pulse latch cicuit is preferably d type flip flop simple in structure.Tipping bucket rain gauge is equipped with magnet steel on tipping bucket sidewall, when it stirs with tipping bucket, from the other scanning of reed capsule, makes reed capsule break-make.Be the every overturning of tipping bucket once, reed capsule is just connected and is once sent a pulse signal.Tipping bucket stirs number of times and sends pulse count signal by magnet steel scanning reed capsule break-make like this, pulse signal of every record, can represent the precipitation as 0.1,0.2 millimeter, gathers and record this pulse data signal, can obtain the rainfall amount of certain millimeter, realize the object of precipitation remote measurement.The on off state of tongue tube S1 by electric circuit inspection tipping bucket rain gauge 1 on duty (only open-minded when catchment occurs), the circuit power consumption on duty of integral body is low to moderate microampere order.
Whether when non-rainfall, harvester cuts out working power U2, and the power supply U1 on duty of micro-power consumption is circuit supply on duty, detect and have catchment to occur.
During rainfall, the tipping bucket upset of tipping bucket rain gauge 1, drive the magnet steel on tipping bucket sidewall to move near tongue tube S1, tongue tube S1 adhesive release cause switch closure to disconnect again, the pulse forming circuit that the signal producing forms through phase inverter U10A, resistance R 4, capacitor C 2, Sheffer stroke gate U9A carries out shaping, spring for reed switch conduction in filtering tipping bucket rain gauge and shutdown moment generation is disturbed, and forms the monostable pulse signal of negative logic of suitable pulsewidth.The monostable pulse signal of this negative logic is divided into two-way, one road signal triggers d type flip flop and latchs catchment signal, another road signal produces WAKEUP wake-up signal through phase inverter U4B and makes rest-set flip-flop upset, controlling working power U2 is MCU and peripheral circuit power supply thereof, and rest-set flip-flop overturns and then to control working power U2 open-minded under the control of wake-up signal.
Status signal by working power U2 forms CLR_EN signal, and this signal for avoiding causing removing d type flip flop latch signal because of EVT_CLR abnormal signal when MCU does not work; This signal also for avoiding d type flip flop to the current leakage of MCU when MCU does not work.Working power U2 is before setting up stable operating voltage, and the CLR_EN signal of generation is logical zero, and this signal keeps MCU in reset mode, forbids that EVT_CLR works, PIO_IN input port is set to logical zero simultaneously.After working power U2 sets up stable operating voltage, CLR_EN signal becomes logical one, completes MCU and resets, and meanwhile, d type flip flop latch signal is imported to the PIO_IN input port of MCU, enables EVT_CLR control signal simultaneously.
When catchment produces, d type flip flop latchs catchment signal, waits for that MCU powers up after work, is read the signal latching by MCU, remove d type flip flop latch signal after having read, the loss situation of avoiding the setup delay because of MCU to bring occurs again.Specific works flow process figure is as shown in Figure 3: after MCU has resetted, program inquiring PIO_IN input port logic state, detect and whether have catchment to occur, if PIO_IN input port logic detected for " 1 ", indicate that catchment occurs, control the pulse signal EVT_CLR of PIO_CLR output port output negative logic, remove d type flip flop latch signal, ready for latching rainfall signal next time, and programmed control rainfall count value adds " 1 ".Removing d type flip flop latch signal and programmed control rainfall count value, to add this two steps of " 1 " interchangeable.MCU carries out the rainfall pulse signal collecting storage as non-volatile in rainfall data, to data center, sends the data processing work such as rainfall data.MCU in operating circuit 4 completes after above work; control PIO_SHDN power down control output end mouth output positive logic pulse signal as power down control signal; control rest-set flip-flop upset and close working power U2, MCU shuts down, and only has each circuit on duty and power supply U1 on duty work.When PIO_IN input port logic being detected not for " 1 ", indicate to occur without catchment, operating circuit 4, directly by PIO_SHDN port output power down control signal, cuts out the working power U2 into operating circuit 4 power supplies, and MCU shuts down.
Like this, in during only occurring at catchment, MCU and peripheral circuit thereof that power consumption is higher are just worked, in the non-rainfall of overwhelming majority period, close the working power of operating circuit, MCU and peripheral circuit thereof are not worked, and only have each circuit on duty to detect catchment with extremely low power dissipation and occur, now harvester described in the utility model is operated in the power consumption state of microampere order, can greatly reduce the comprehensive power consumption of harvester.So that under the field environment without Alternating Current Power Supply, harvester can adopt disposable battery power supply to work long hours, or adopt solar cell for supplying power long-time running on a small scale, to form micro-power consumption tipping bucket type rainfall pulse signal acquisition device of disposable battery power supply or small-scale solar cell for supplying power.
Operating circuit 4 can also carry out delay process after completing pulse data signal processing, preferred workflow diagram as shown in Figure 4, with the difference of the workflow shown in Fig. 3 be, MCU completes the non-volatile storage of rainfall data, to data center, send the laggard line delays of work such as rainfall data, continue to detect whether PIO_IN input port logic state is " 1 ", continue to detect rainfall whether continuously, when being " 1 ", logic again removes d type flip flop latch signal, rainfall count value is added to " 1 " and carries out the data processing work such as non-volatile storage and transmission processing, when logic state is " 0 ", control rest-set flip-flop upset and close working power U2, operating circuit 4 quits work.When continuing rainfall, can read continuously the tipping bucket type rainfall pulse signal latching by operating circuit 4 like this, until close again working power U2 while there is no rainfall, improve the work efficiency of the micro-power consumption tipping bucket type of the utility model rainfall pulse signal acquisition device.
It should be pointed out that the above embodiment can make the invention of those skilled in the art's comprehend, but do not limit the present invention in any way creation.Therefore; although this instructions has been described in detail the invention with reference to drawings and Examples; but; those skilled in the art are to be understood that; still can modify or be equal to replacement the invention; in a word, all do not depart from technical scheme and the improvement thereof of the spirit and scope of the invention, and it all should be encompassed in the middle of the protection domain of the invention patent.
Claims (6)
1. a micro-power consumption tipping bucket type rainfall pulse signal acquisition device, it is characterized in that, comprise the first circuit on duty, the second circuit on duty, operating circuit, power supply on duty, working power, described the first circuit on duty and the second circuit on duty are the CMOS logical circuit of micro-power consumption design, the working current of described each circuit on duty is microampere order, described operating circuit comprises MCU and peripheral circuit thereof, described power supply on duty is each circuit supply on duty, described working power is operating circuit power supply, described working power have open with closed condition and when the non-rainfall in closed condition, described the first circuit on duty during by rainfall the pulse signal of tipping bucket rain gauge latch and produce wake-up signal, thereby described the second circuit on duty receives wake-up signal and controls working power and open as operating circuit power supply, described operating circuit reads pulse signal that the first circuit on duty latchs and cuts out working power carrying out controlling the second circuit on duty after pulse data signal is processed.
2. micro-power consumption tipping bucket type rainfall pulse signal acquisition device according to claim 1, is characterized in that, described operating circuit is removed described latch signal after reading the pulse signal that the first circuit on duty latchs, for next rainfall latch pulse signal is prepared.
3. micro-power consumption tipping bucket type rainfall pulse signal acquisition device according to claim 1 and 2, it is characterized in that, described operating circuit carries out pulse data signal to be processed and to have comprised the Nonvolatile memory of pulse signal and to have sent described data message to the data center of far-end.
4. micro-power consumption tipping bucket type rainfall pulse signal acquisition device according to claim 3, it is characterized in that, described the first circuit on duty comprises pulse forming circuit and the pulse latch cicuit connecting successively, the pulse signal that described pulse forming circuit sends tipping bucket rain gauge is shaped to the pulse signal of negative logic and produces wake-up signal, described pulse forming circuit is connected with the second circuit on duty, and described pulse latch cicuit receives and latch the pulse signal of described negative logic.
5. micro-power consumption tipping bucket type rainfall pulse signal acquisition device according to claim 4, it is characterized in that, described the second circuit on duty comprises rest-set flip-flop, described rest-set flip-flop overturns under the control of wake-up signal and then to control working power open-minded, upset and then control working power and close under the control of the power down control output end mouth of the MCU of described rest-set flip-flop in operating circuit.
6. micro-power consumption tipping bucket type rainfall pulse signal acquisition device according to claim 1, it is characterized in that, described operating circuit is processed laggard line delay and is processed carrying out pulse data signal, and whether the logic state that further judge the first circuit latch signal on duty after time delay have catchment generation to detect, in described logic state, be to control the second circuit on duty at 0 o'clock to close working power.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121165.XU CN203825217U (en) | 2014-03-17 | 2014-03-17 | Micro-power consumption tipping bucket type rainfall pulse signal acquisition device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420121165.XU CN203825217U (en) | 2014-03-17 | 2014-03-17 | Micro-power consumption tipping bucket type rainfall pulse signal acquisition device |
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| CN203825217U true CN203825217U (en) | 2014-09-10 |
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| CN201420121165.XU Withdrawn - After Issue CN203825217U (en) | 2014-03-17 | 2014-03-17 | Micro-power consumption tipping bucket type rainfall pulse signal acquisition device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103869384A (en) * | 2014-03-17 | 2014-06-18 | 基康仪器股份有限公司 | Micro-power-consumption tipping bucket type rainfall pulse signal collecting device and method |
| CN106292441A (en) * | 2016-08-29 | 2017-01-04 | 苏州盖恩茨电子科技有限公司 | A kind of energy-conservation signal picker of terminal trigger-type |
| CN107228694A (en) * | 2017-07-11 | 2017-10-03 | 湖北生态工程职业技术学院 | A kind of rotary cavity type liquid flow sensor |
-
2014
- 2014-03-17 CN CN201420121165.XU patent/CN203825217U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103869384A (en) * | 2014-03-17 | 2014-06-18 | 基康仪器股份有限公司 | Micro-power-consumption tipping bucket type rainfall pulse signal collecting device and method |
| CN106292441A (en) * | 2016-08-29 | 2017-01-04 | 苏州盖恩茨电子科技有限公司 | A kind of energy-conservation signal picker of terminal trigger-type |
| CN107228694A (en) * | 2017-07-11 | 2017-10-03 | 湖北生态工程职业技术学院 | A kind of rotary cavity type liquid flow sensor |
| CN107228694B (en) * | 2017-07-11 | 2023-04-28 | 湖北生态工程职业技术学院 | Rotary cavity type liquid flow sensor |
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