CN103869384B - Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device and method - Google Patents
Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device and method Download PDFInfo
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- CN103869384B CN103869384B CN201410099146.6A CN201410099146A CN103869384B CN 103869384 B CN103869384 B CN 103869384B CN 201410099146 A CN201410099146 A CN 201410099146A CN 103869384 B CN103869384 B CN 103869384B
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Abstract
The present invention relates to a kind of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device and method, this device comprises the first circuit on duty, 2nd circuit on duty, pull up circuit, power supply on duty, working power, first circuit on duty and the 2nd circuit on duty are the CMOS logic circuit of Micro Energy Lose design, the working current of each circuit on duty is microampere order, working power has to be opened with closing condition and is in closing condition when non-rainfall, the pulse signal of tipping bucket rain gauge during rainfall is latched and produces wake-up signal by the first circuit on duty, 2nd circuit on duty receives wake-up signal and controls working power and open thus power for pull up circuit, pull up circuit reads the pulse signal of the first circuit on duty latch and controls the 2nd circuit on duty after carrying out pulse data signal process and cut out working power. realizing in non-rainfall period, device of the present invention works in microampere order power consumption state, it is possible to save energy, extends the advantage in primary cell work-ing life.
Description
Technical field
The present invention relates to data acquisition technology field, in particular to a kind of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device and method, for the tipping bucket rain gauge pulse signal acquisition in the automatic monitoring field such as water conservancy, the hydrology, town and country flood control, geologic hazard, can comprehensively reduce pulse data signal gathering device power consumption, avoid losing rainfall pulse signal simultaneously.
Background technology
Tipping bucket rain gauge is applicable to the relevant departments such as weather station, tidal observatory, agricultural, national defence and is used for remote measurement rainfall amount, rainfall intensity, rainfall beginning and ending time, observe and predict station for automatic system of hydrological data acquisition and transmission, automatically field for the purpose of flood control, scheduling of supplying water, the management of hydropower reservoir station regimen, it is rainfall survey sensor. Tipping bucket rain gauge comprises the parts such as tipping bucket, magnet steel, dry-reed tube, tipping bucket upset during rainfall, from the other scanning of dry-reed tube when magnet steel on tipping bucket sidewall stirs with tipping bucket, dry-reed tube break-make is made to send pulse count signal, gather and record this pulse data signal, the rainfall amount of certain millimeter can be obtained.
At present, conventional tipping bucket rain gauge pulse signal acquisition mode is: by the dry-reed tube adhesive of tipping bucket rain gauge and the pulse signal produced when disconnecting directly accesses the PIO port of embedded MCU, interrupted by PIO or program scans PIO port processing pulse signal. This kind of mode needs the embedded MCU as gathering device and peripheral circuit thereof to be in the state of working on power all the time, certain electric energy will be consumed like this, it is not easy to the power consumption of gathering device is reduced to microampere order state, namely power consumption is relatively high, and then also can reduce the work-ing life of the gathering device battery adopting primary cell to power.
Summary of the invention
The present invention is directed to current tipping bucket rain gauge pulse signal acquisition mode power consumption height and gathering device primary cell work-ing life problem on the low side, a kind of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device is provided, realize in the overwhelming majority non-rainfall period, this gathering device works in microampere order Micro Energy Lose state, there is save energy, extend the advantage in primary cell work-ing life, it is particularly useful for field environment and runs. The present invention also relates to a kind of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition method.
The technical scheme of the present invention is as follows:
A kind of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device, it is characterized in that, comprise the first circuit on duty, 2nd circuit on duty, pull up circuit, power supply on duty, working power, the working current of CMOS logic circuit and each circuit on duty that described first circuit on duty and the 2nd circuit on duty are Micro Energy Lose design is microampere order, described pull up circuit comprises MCU and peripheral circuit thereof, described power supply on duty is that each circuit on duty is powered, described working power is that pull up circuit is powered, described working power has to be opened with closing condition and is in closing condition when non-rainfall, the pulse signal of tipping bucket rain gauge during rainfall is latched and produces wake-up signal by described first circuit on duty, described 2nd circuit on duty receives wake-up signal and controls working power and open thus power for pull up circuit, described pull up circuit reads the pulse signal of the first circuit on duty latch and controls the 2nd circuit on duty after carrying out pulse data signal process and cut out working power.
The pulse signal of described latch removed by described pull up circuit after the pulse signal reading the first circuit on duty latch, for rainfall latch pulse signal next time is prepared.
Described pull up circuit carries out pulse data signal and processes the Nonvolatile memory having comprised pulse signal and the transmission data information of Data centre distally.
Described first circuit on duty comprises the pulse forming circuit connected successively and pulse latch cicuit, the pulse signal that tipping bucket rain gauge is sent by described pulse forming circuit is shaped to the pulse signal of negative logic and produces wake-up signal, described pulse forming circuit is connected with the 2nd circuit on duty, and described pulse latch cicuit receives and latches the pulse signal of described negative logic.
Described 2nd circuit on duty comprises RS triggering device, described RS triggering device overturns under the control of wake-up signal and then to control working power open-minded, and under the control falling electric control output port of the MCU of described RS triggering device in pull up circuit, upset and then control working power are closed.
Described pull up circuit carry out pulse data signal process laggard line delay process, and judge whether the logic state of the first circuit latch signal on duty has rainfall event to occur to detect after the delay further, it is that 0 control the 2nd circuit on duty closes working power in described logic state.
A kind of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition method, it is characterized in that, the circuit on duty designed by Micro Energy Lose performs rainfall detection work, described circuit on duty comprises the first circuit on duty and the 2nd circuit on duty, the CMOS logic circuit that described circuit on duty designs for Micro Energy Lose and on duty time working current be microampere order, it is that each circuit on duty is powered by power supply on duty, the working power opened with closing condition by having and be in closing condition when non-rainfall is that pull up circuit is powered, and described pull up circuit comprises MCU and peripheral circuit thereof; When rainfall, the pulse signal of tipping bucket rain gauge latches through the first circuit on duty, and produce wake-up signal, receiving described wake-up signal by the 2nd circuit on duty again and controlling working power is that pull up circuit is powered, read the pulse signal of the first circuit on duty latch by pull up circuit and send pass electrical signal to the 2nd circuit on duty after described pulse signal is carried out data processing, close the power supply of pull up circuit by the 2nd control circui working power on duty.
The pulse signal of described latch removed by the pull up circuit that described collection method adopts after the pulse signal reading the first circuit on duty latch, for rainfall latch pulse signal next time is prepared; Described pull up circuit pulse signals carries out data processing and has comprised the Nonvolatile memory of pulse signal and Data centre distally sends data information.
The first circuit on duty that described collection method adopts comprises the pulse forming circuit and d type flip flop that connect successively, the pulse signal sent by tipping bucket rain gauge by pulse forming circuit is shaped to the pulse signal of negative logic and produces wake-up signal, and described d type flip flop receives and latches the pulse signal of described negative logic; And/or, described 2nd circuit on duty comprises RS triggering device, described RS triggering device overturns under the control of wake-up signal and then to control working power open-minded, pull up circuit exports positive logic pulse signal by falling electric control output port after completing data processing, control RS triggering device upset and then closedown working power.
Described collection method adopt pull up circuit carry out pulse data signal process laggard line delay process, and judge whether the logic state of the first circuit latch signal on duty has rainfall event to occur to detect after the delay further, it is that 0 control the 2nd circuit on duty closes working power in described logic state.
The technique effect of the present invention is as follows:
The Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device that the present invention relates to, comprise the first circuit on duty, 2nd circuit on duty, pull up circuit, power supply on duty, working power, circuit Micro Energy Lose on duty design mainly comprises the CMOS logic circuit of Micro Energy Lose low voltage designs, circuit on duty is powered for a long time by power supply on duty and the working current of circuit on duty is microampere order, pull up circuit is powered by the working power that can turn off, the pulse data signal of tipping bucket rain gauge is had enough processing poweies by pull up circuit, but only work within the time period of rainfall, during other non-rainfall, 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 the comprehensive power consumption now of the gathering device of the present invention is reduced to microampere order state, when rainfall event produces, first circuit on duty latches the pulse signal (i.e. rainfall signal) that tipping bucket rain gauge produces, and produce wake-up signal and power up work by the 2nd control circui pull up circuit on duty (MCU and peripheral circuit thereof), pull up circuit control the 2nd circuit on duty after the work such as collection, process rainfall signal complete closes working power, and namely closedown MCU and periphery circuit thereof are powered automatically. like this, only within the short period of time that rainfall event occurs, the MCU that power consumption is higher and peripheral circuit thereof just work, the overwhelming majority non-rainfall only each circuit working on duty in period, now this gathering device work in microampere order Micro Energy Lose state, can greatly reduce the comprehensive power consumption of gathering device, extend the work-ing life of gathering device primary cell, avoid losing rainfall pulse signal simultaneously, and gathering device can adopt disposable battery long term operation or adopt the Power supply non-stop runs on duty such as small-scale sun power, it is more suitable for field environment and runs.
First circuit on duty arranges pulse forming circuit and pulse latch cicuit, pulse forming circuit is connected with tipping bucket rain gauge, for the spring interference that reed switch conduction in filtering tipping bucket rain gauge and shutdown moment produce, and the monostable pulse signal of the negative logic forming suitable pulsewidth. Pulse latch cicuit is Micro Energy Lose low voltage cmos logical circuit, and structure is simple and easy to realize, and has temporary and memory function, is convenient to latch the pulse signal of tipping bucket rain gauge, and facilitates MCU read and detect the pulse signal of this latch.
Pull up circuit processes laggard line delay at pulse data signal, checking MCU inputs port logic state further, namely the pulse signal reading d type flip flop latch judges whether rainfall continues, when logic is 1, pull up circuit continues this pulse data signal of acquisition and processing, automatically MCU is closed and peripheral circuit is powered when logic is 0, like this when lasting rainfall, number of times is closed in the power supply greatly reducing pull up circuit, its power supply is closed again after rainfall completes, tipping bucket type rainfall pulse signal acquisition can be completed more efficiently, improve the working efficiency of gathering device of the present invention.
RS triggering device circuit is simple, it is possible to adopting two rejection gates to form, RS triggering device all overturns under wake-up signal and MCU fall the control of electric control output port, is opened by the mode control working power of RS triggering device or is closed.
The Micro Energy Lose tipping bucket type rainfall pulse signal acquisition method that the present invention relates to, by adopting the circuit on duty of Micro Energy Lose design to perform work on duty, pull up circuit is in power-off state in non-rainfall period, when rainfall, the pulse signal of tipping bucket rain gauge latches through the first circuit on duty, and produce wake-up signal, it is that pull up circuit is powered by the 2nd control circui working power on duty again, read the pulse signal of the first circuit on duty latch by pull up circuit and send pass electrical signal to the 2nd circuit on duty after described pulse signal is carried out data processing, the power supply of pull up circuit is closed by the 2nd control circui working power on duty. like this, pull up circuit is only in rainfall powered operation in period, after rainfall pulse data signal has processed, automatically close pull up circuit power, energy-conservation power consumption in a large number, the collection of rainfall pulse signal is carried out under the environment facilitating the electricity consumptions such as field insufficient, realize rainfall pulse signal acquisition when microampere order state power consumption, it is convenient to the objects such as follow-up precipitation remote measurement.
Accompanying drawing explanation
Fig. 1 is the preferred structure block diagram of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device of the present invention.
Fig. 2 is the electrical block diagram of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device of the present invention.
Fig. 3 is the workflow diagram of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device of the present invention.
Fig. 4 is the preferred workflow diagram of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device of the present invention.
Fig. 5 is the schema of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition method of the present invention.
In figure, each label lists as follows:
1-tipping bucket rain gauge; 2-first circuit on duty; 3-the 2nd circuit on duty; 4-pull up circuit; U1-power supply on duty; U2-working power.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described.
The present invention discloses a kind of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device, comprise the first circuit on duty, 2nd circuit on duty, pull up circuit, power supply on duty, working power, first circuit on duty and the 2nd circuit on duty are the CMOS logic circuit of Micro Energy Lose low voltage designs, the working current of each circuit on duty is microampere order, pull up circuit comprises MCU and peripheral circuit thereof, power supply on duty is that each circuit on duty is powered, working power is that pull up circuit is powered, working power has to be opened with closing condition and is in closing condition when non-rainfall, the preferred structure block diagram of gathering device of the present invention is as shown in Figure 1, preferably the first circuit on duty comprises the pulse forming circuit connected successively and pulse latch cicuit, preferably the 2nd circuit on duty is working power pilot circuit, the input terminus of pulse forming circuit is connected with the output terminal of tipping bucket rain gauge, the input terminus that the output terminal of pulse forming circuit connects pulse latch cicuit is connected with the input terminus of working power pilot circuit, the output terminal of working power pilot circuit connects the input terminus of pulse latch cicuit, pulse latch cicuit is connected with pull up circuit, the electric control output terminal that falls of pull up circuit is connected with working power pilot circuit.
The pulse signal that tipping bucket rain gauge sends inputs to pulse forming circuit, described pulse signal is shaped to the pulse signal of negative logic and produces wake-up signal by pulse forming circuit, pulse latch cicuit receives and latches the pulse signal of this negative logic, working power pilot circuit receives wake-up signal, this wake-up signal essence is upper electric control signal, and working power pilot circuit controls working power and opens thus power for pull up circuit after receiving this wake-up signal; Pull up circuit reads the pulse signal of pulse latch circuit latches and removes the pulse signal of described latch after reading, for rainfall latch pulse signal next time is prepared, pull up circuit carries out pulse data signal again and processes the work such as the Nonvolatile memory as completed pulse signal and the transmission data information of Data centre distally, working power pilot circuit is performed electric control again by pull up circuit after work completes, and closes working power by working power pilot circuit.
Fig. 2 is the electrical block diagram of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device of the present invention, and this device comprises the first circuit 2 on duty, the 2nd circuit 3 on duty, pull up circuit 4, power supply U1 on duty, working power U2. Can be understood as the hardware circuit of gathering device of the present invention and it is divided into circuit on duty and pull up circuit two parts, in circuit on duty first circuit on duty 2 and the 2nd circuit 3 on duty adopt Micro Energy Lose to design, time on duty, its pull up circuit can be down to microampere order, pull up circuit 4 has enough processing poweies, but only working in the short time that rainfall occurs, other overwhelming majority time is in power-off state. The power supply of gathering device is divided into two portions, and wherein a part is the power supply U1 on duty of Micro Energy Lose, and this power supply U1 on duty only consumes the quiescent current of several microamperes, powers for circuit on duty for a long time; Another part is working power U2, can open as requested or turn off, have certain power supply capacity, for MCU and peripheral circuit thereof are powered. 2nd circuit 3 on duty preferably adopts the RS triggering device of two " or non-" doors formations, this RS triggering device all overturns under the control falling electric control output port PIO_SHDN of WAKEUP wake-up signal and MCU, is opened by the mode control working power of RS triggering device or is disconnected. First circuit 2 on duty comprises pulse forming circuit and pulse latch cicuit, and pulse latch cicuit is preferably the simple d type flip flop of structure. Tipping bucket rain gauge is equipped with magnet steel on tipping bucket sidewall, from the other scanning of reed capsule when it stirs with tipping bucket, makes reed capsule break-make. Namely the every overturning of tipping bucket is once, and reed capsule is just connected and once sent a pulse signal. Such tipping bucket stirs number of times magnet steel scanning reed capsule break-make and sends pulse count signal, often record a pulse signal, it is possible to represent the precipitation such as 0.1,0.2 millimeter, gather and record this pulse data signal, the rainfall amount of certain millimeter can be obtained, it is achieved the object of precipitation remote measurement. By the switch state of the dry-reed tube S1 of electric circuit inspection tipping bucket rain gauge 1 on duty (only when rainfall event occurs open-minded), the circuit power consumption on duty of entirety is low to moderate microampere order.
When non-rainfall, gathering device cuts out working power U2, and the power supply U1 on duty of Micro Energy Lose is that circuit on duty is powered, and whether detection has rainfall event to occur.
During rainfall, the tipping bucket upset of tipping bucket rain gauge 1, the magnet steel on tipping bucket sidewall is driven to move near dry-reed tube S1, dry-reed tube S1 adhesive discharging causes that switch is closed to be disconnected again, the pulse forming circuit that the signal produced is formed through phase inverter U10A, resistance R4, electric capacity C2, Sheffer stroke gate U9A carries out shaping, for the spring interference that reed switch conduction in filtering tipping bucket rain gauge and shutdown moment produce, and the monostable pulse signal of the negative logic forming suitable pulsewidth. The monostable pulse signal of this negative logic is divided into two-way, one road signal triggers d type flip flop and latches rainfall event signal, another road signal produces WAKEUP wake-up signal through phase inverter U4B makes RS triggering device overturn, control working power U2 is that MCU and peripheral circuit thereof are powered, and namely RS triggering device overturns and then to control working power U2 open-minded under the control of wake-up signal.
Forming CLR_EN signal by the status signal of working power U2, this signal causes removing d type flip flop latch signal because of EVT_CLR abnormal signal for avoiding when MCU does not work; This signal also for avoiding d type flip flop to leak to the electric current 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 logic " 0 ", and this signal keeps MCU to be in reset mode, forbids that EVT_CLR works, PIO_IN inputs port is set to logic " 0 " simultaneously. After working power U2 sets up stable operating voltage, CLR_EN signal turns into logic " 1 ", completes MCU and resets, and meanwhile, the PIO_IN that d type flip flop latch signal imports MCU inputs port, simultaneously enable EVT_CLR control signal.
When rainfall event produces, d type flip flop latches rainfall event signal, after waiting that MCU powers up work, reads the signal latched by MCU, d type flip flop latch signal is removed in reading again after completing, the loss situation avoiding the setup delay because of MCU to bring occurs. Concrete workflow journey figure is as shown in Figure 3: after MCU has resetted, program inquiring PIO_IN inputs port logic state, whether detection has rainfall event to occur, if detecting that PIO_IN inputs port logic for " 1 ", then indicating that rainfall event occurs, control PIO_CLR output port exports the pulse signal EVT_CLR of negative logic, removes d type flip flop latch signal, ready for latching rainfall signal next time, and time variable control rainfall counting value adds " 1 ". These two steps that removing d type flip flop latch signal and time variable control rainfall counting value add " 1 " can be exchanged. The rainfall pulse signal collected is carried out storage as non-volatile in rainfall data, sends the data processing work such as rainfall data to Data centre by MCU. After MCU in pull up circuit 4 completes above work; control PIO_SHDN falls electric control output port and exports positive logic pulse signal as falling electric control signal; control RS triggering device upset is closed working power U2, MCU and is shut down, and only each circuit on duty and power supply U1 on duty work. When detecting that PIO_IN inputs port logic not for " 1 ", indicate and occur without rainfall event, then pull up circuit 4 directly exports electric control signal by PIO_SHDN port, closes as the working power U2 that pull up circuit 4 is powered, MCU shut down.
Like this, in only during rainfall event occurs, the MCU that power consumption is higher and peripheral circuit thereof just work, in the overwhelming majority non-rainfall period, closing the working power of pull up circuit, MCU and peripheral circuit thereof do not work, and only each circuit on duty detects the generation of rainfall event with extremely low power dissipation, now gathering device of the present invention is operated in the power consumption state of microampere order, can greatly reduce the comprehensive power consumption of gathering device. So that under the field environment without exchange power supply, gathering device can adopt disposable powered battery to work for a long time, or adopt solar cell for supplying power long-time running on a small scale, to form disposable powered battery or the Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device of small-scale solar cell for supplying power.
Pull up circuit 4 completes to carry out delay process after pulse data signal processes, preferred workflow diagram as shown in Figure 4, with the difference of the workflow shown in Fig. 3 it is, MCU completes the non-volatile storage of rainfall data, the laggard line delays of work such as rainfall data are sent to Data centre, continue detection PIO_IN and input whether port logic state is " 1 ", namely whether continuous detection rainfall is continued, d type flip flop latch signal is again removed for time " 1 " in logic, rainfall counting value is added " 1 " and carries out the data processing work such as non-volatile storage and transmission processing, logic state be " 0 " control RS triggering device upset close working power U2, pull up circuit 4 stops work. the tipping bucket type rainfall pulse signal of latch can be read so continuously by pull up circuit 4, until closing working power U2 when there is no rainfall again, it is to increase the working efficiency of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device of the present invention when lasting rainfall.
The present invention also relates to a kind of Micro Energy Lose tipping bucket type rainfall pulse signal acquisition method, adopt the mode that hardware design is combined with embedded software, the circuit on duty designed by Micro Energy Lose performs rainfall detection work, when non-rainfall, the only circuit working on duty of extremely low microampere rank power consumption, whether detection rainfall occurs. during rainfall, circuit on duty latches rainfall event signal, and produces WAKEUP wake-up signal control MCU and peripheral circuit powers up work, gathers, process rainfall event signal, automatically closes MCU and periphery circuit is powered after work. circuit on duty comprises the first circuit on duty and the 2nd circuit on duty, the CMOS logic circuit that circuit on duty designs for Micro Energy Lose and on duty time working current be microampere order, occur for detecting rainfall event, latch rainfall event signal, produce WAKEUP wake-up signal, control working power open or disconnect and when MCU does not work to control status signal blockade, it is that each circuit on duty is powered by power supply on duty, the working power opened with closing condition by having and be in closing condition when non-rainfall is that pull up circuit is powered, pull up circuit comprises MCU and peripheral circuit thereof. the flow process of the method for the invention is as shown in Figure 5, working power is in closing condition when non-rainfall, when rainfall, the pulse signal of tipping bucket rain gauge latches through the first circuit on duty, and produce wake-up signal, it is that pull up circuit is powered by the 2nd control circui working power on duty again, read the pulse signal of the first circuit on duty latch by pull up circuit and send pass electrical signal to the 2nd circuit on duty after described pulse signal is carried out data processing, close the power supply of pull up circuit by the 2nd control circui working power on duty.
In flow process shown in Fig. 5, pull up circuit can remove the pulse signal of this latch after the pulse signal reading the first circuit on duty latch, for rainfall latch pulse signal next time is prepared. then pull up circuit completes the Nonvolatile memory of pulse signal and Data centre distally sends the data processing work such as data information again. after pull up circuit pulse signals completes these data processing work, it is possible to control is fallen electricity port and exported positive logic pulse signal, and control the 2nd circuit on duty closes working power, only each circuit working on duty. in addition, also has a kind of optimal way, it is after pull up circuit pulse signals completes Nonvolatile memory and Data centre distally sends the data processing work such as described data information, do not send pass electrical signal, but carry out delay process, and judge whether the logic state of the first circuit latch signal on duty has rainfall event to occur to detect further, indicate that rainfall event occurs in logic state for time " 1 ", time variable control rainfall counting value adds " 1 ", occur without rainfall event to go control the 2nd circuit on duty to close working power again for indicating time " 0 " in logic state.
The first circuit on duty that method adopts is gathered described in Micro Energy Lose tipping bucket type rainfall pulse signal of the present invention, the concrete structure of the parts such as the 2nd circuit on duty and pull up circuit can with reference to shown in figure 2, first circuit on duty comprises the pulse forming circuit and d type flip flop that connect successively, the pulse signal sent by tipping bucket rain gauge by pulse forming circuit is shaped to the pulse signal of negative logic and produces wake-up signal, d type flip flop receives as a kind of pulse latch cicuit and latches the pulse signal of described negative logic, enable EVT_CLR control signal simultaneously, described wake-up signal is received by the 2nd circuit on duty. 2nd circuit on duty comprises RS triggering device, described RS triggering device overturns under the control of wake-up signal and then to control working power open-minded, pull up circuit exports positive logic pulse signal by falling electric control output port after completing data processing, and control RS triggering device upset and then closedown working power are powered.
It is noted that the technician that the above embodiment can make this area more fully understands the invention, but do not limit the present invention in any way creation. Therefore; although the invention has been described in detail by this specification sheets with reference to drawings and Examples; but; those skilled in the art are to be understood that; still the invention can be modified or equivalent replacement; in a word, all do not depart from technical scheme and the improvement thereof of the spirit and scope of the invention, in the middle of its protection domain that all should be encompassed in the invention patent.
Claims (10)
1. a Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device, it is characterized in that, comprise the first circuit on duty, 2nd circuit on duty, pull up circuit, power supply on duty, working power, the working current of CMOS logic circuit and each circuit on duty that described first circuit on duty and the 2nd circuit on duty are Micro Energy Lose design is microampere order, described pull up circuit comprises MCU and peripheral circuit thereof, described power supply on duty is that each circuit on duty is powered, described working power is that pull up circuit is powered, described working power has to be opened with closing condition and is in closing condition when non-rainfall, the pulse signal of tipping bucket rain gauge during rainfall is latched and produces wake-up signal by described first circuit on duty, described 2nd circuit on duty receives wake-up signal and controls working power and open thus power for pull up circuit, described pull up circuit reads the pulse signal of the first circuit on duty latch and controls the 2nd circuit on duty after carrying out pulse data signal process and cut out working power.
2. Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device according to claim 1, it is characterized in that, the pulse signal of described latch removed by described pull up circuit after the pulse signal reading the first circuit on duty latch, for rainfall latch pulse signal next time is prepared.
3. Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device according to claim 1 and 2, it is characterized in that, described pull up circuit carries out pulse data signal and processes the Nonvolatile memory having comprised pulse signal and the transmission data information of Data centre distally.
4. Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device according to claim 3, it is characterized in that, described first circuit on duty comprises the pulse forming circuit connected successively and pulse latch cicuit, the pulse signal that tipping bucket rain gauge is sent by described pulse forming circuit is shaped to the pulse signal of negative logic and produces wake-up signal, described pulse forming circuit is connected with the 2nd circuit on duty, and described pulse latch cicuit receives and latches the pulse signal of described negative logic.
5. Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device according to claim 4, it is characterized in that, described 2nd circuit on duty comprises RS triggering device, described RS triggering device overturns under the control of wake-up signal and then to control working power open-minded, and under the control falling electric control output port of the MCU of described RS triggering device in pull up circuit, upset and then control working power are closed.
6. Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device according to claim 1, it is characterized in that, described pull up circuit carry out pulse data signal process laggard line delay process, and judge whether the logic state of the first circuit latch signal on duty has rainfall event to occur to detect after the delay further, it is that 0 control the 2nd circuit on duty closes working power in described logic state.
7. a Micro Energy Lose tipping bucket type rainfall pulse signal acquisition method, it is characterized in that, the circuit on duty designed by Micro Energy Lose performs rainfall detection work, described circuit on duty comprises the first circuit on duty and the 2nd circuit on duty, the CMOS logic circuit that described circuit on duty designs for Micro Energy Lose and on duty time working current be microampere order, it is that each circuit on duty is powered by power supply on duty, the working power opened with closing condition by having and be in closing condition when non-rainfall is that pull up circuit is powered, and described pull up circuit comprises MCU and peripheral circuit thereof; When rainfall, the pulse signal of tipping bucket rain gauge latches through the first circuit on duty, and produce wake-up signal, receiving described wake-up signal by the 2nd circuit on duty again and controlling working power is that pull up circuit is powered, read the pulse signal of the first circuit on duty latch by pull up circuit and send pass electrical signal to the 2nd circuit on duty after described pulse signal is carried out data processing, close the power supply of pull up circuit by the 2nd control circui working power on duty.
8. Micro Energy Lose tipping bucket type rainfall pulse signal acquisition method according to claim 7, it is characterized in that, the pulse signal of described latch removed by described pull up circuit after the pulse signal reading the first circuit on duty latch, for rainfall latch pulse signal next time is prepared; Described pull up circuit pulse signals carries out data processing and has comprised the Nonvolatile memory of pulse signal and Data centre distally sends data information.
9. Micro Energy Lose tipping bucket type rainfall pulse signal acquisition method according to claim 7 or 8, it is characterized in that, described first circuit on duty comprises the pulse forming circuit and d type flip flop that connect successively, the pulse signal sent by tipping bucket rain gauge by pulse forming circuit is shaped to the pulse signal of negative logic and produces wake-up signal, and described d type flip flop receives and latches the pulse signal of described negative logic; And/or, described 2nd circuit on duty comprises RS triggering device, described RS triggering device overturns under the control of wake-up signal and then to control working power open-minded, pull up circuit exports positive logic pulse signal by falling electric control output port after completing data processing, control RS triggering device upset and then closedown working power.
10. Micro Energy Lose tipping bucket type rainfall pulse signal acquisition method according to claim 9, it is characterized in that, described pull up circuit carry out pulse data signal process laggard line delay process, and judge whether the logic state of the first circuit latch signal on duty has rainfall event to occur to detect after the delay further, it is that 0 control the 2nd circuit on duty closes working power in described logic state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410099146.6A CN103869384B (en) | 2014-03-17 | 2014-03-17 | Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410099146.6A CN103869384B (en) | 2014-03-17 | 2014-03-17 | Micro Energy Lose tipping bucket type rainfall pulse signal acquisition device and method |
Publications (2)
| Publication Number | Publication Date |
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| CN103869384A CN103869384A (en) | 2014-06-18 |
| CN103869384B true CN103869384B (en) | 2016-06-08 |
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| CN109343156B (en) * | 2018-12-10 | 2020-12-15 | 安徽沃特水务科技有限公司 | Rain-proof amount report missing remote measurement terminal machine |
| CN109343157B (en) * | 2018-12-10 | 2021-06-01 | 安徽沃特水务科技有限公司 | Accurate rainfall telemetering terminal |
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| CN102436015B (en) * | 2011-12-02 | 2014-01-08 | 南京英恩特环境技术有限公司 | Method and rain gauge for measuring rainfall by pulse illumination optics |
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