CN100468287C - Method and apparatus for reducing power consumption in battery-operated devices - Google Patents
Method and apparatus for reducing power consumption in battery-operated devices Download PDFInfo
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Abstract
The invention relates to an energy-saving sampling method and an electrical apparatus (1, 1'), particularly an electronic gas meter (1') or motion detector (1), for carrying out said method. The aim of the invention is to reduce power consumption (I) of the battery (105) in said method and apparatus (1, 1'). Said aim is achieved by sampling the test signal (100b, 101b) in a quasi continuous (13) manner by defining sampling time slots (14') during which sampling is done in an uninterrupted fashion while sampling gaps (14) during which no sampling is done are allowed between the sampling time slots (14'). Examples of embodiments include sampling gaps (14) at regular or random intervals, sampling gaps (14) with a variable duration and/or frequency and especially an increasing duration and/or frequency as the remaining service life of the battery decreases, and a lower sampling rate (f1, f2, f3) during the sampling time slots (14'), among others, resulting in an increased battery lifetime without substantially reducing test reliability.
Description
Technical field
Power device that the present invention relates to turn round voluntarily and equipment are specifically related to the battery powdered device in the building services technology.According to the preamble of independent claims of the present invention, the present invention includes the method for sampling, power device, system and equipment.
Background technology
Provided the method for sampling that is used for flowmeter in EP1278047A, wherein sampling rate is reduced according to the remaining life of power supply.As a result, can it with the sacrifice in measurement accuracy serviceable life that cost increases power supply.
In the JP10246662A patent, its summary discloses a kind of water counter with electronic transducer, wherein has Magnetic Sensor, adjusts the sampling rate of this Magnetic Sensor according to sensor signal.In order to reduce energy consumption, stable or constant substantially if sensor signal keeps, then reduce sampling rate, if changing appears in sensor signal, then increase sampling rate.Do not relate to according to other parameters and especially reduce energy consumption according to the remaining life of power supply.
In WO98/52061, a kind of measurement mechanism or gasometer have been provided, wherein monitoring battery charged state and definite time in the time that battery should be replaced.To remaining power electric capacity or remaining life determine mainly based on: count metering to battery operated fate from coming into operation; The automatic discharge of battery; The stand-by state consumption of gasometer; The certain operational modes of metering gasometer to implement multifrequency numerous; Based on the statistics of the potential energy consumption of being inferred or the extrapolation of empirical value; And between battery alarm and the safe level in the actual time that substitutes between the battery.Do not relate to the measure in the serviceable life that is used to prolong battery.
Motion detector is the device that detects the people in limited as far as possible zone or space angle.They especially are applied in the equipment and technology.Preferably, they are used to control light source, fan, heating system and other power devices.If the people towards sensor movement, then for example turns on the light by postponing switch or semiconductor switch.Sensor is based on infrared detector, and this infrared detector produces signal corresponding to the temperature that mobile agent distributed.Usually, this device connects up in a fixed manner, and works on the low pressure source network.
In U.S. Patent No. 4,982, in 176, a kind of outside luminous and warning system with passive infrared motion detectors is disclosed.This system is by can be via the powered battery of rechargeable solar battery.Only when motion detector detects moving target, just encourage the powered battery of described luminous or alarm by electronic control unit.In addition, utilize the help of day photodetector, can avoid the excitation of system by day.Do not relate to the measure of the energy consumption that is used for reducing motion detector.
Summary of the invention
The method and apparatus that the purpose of this invention is to provide the function duration that is used to prolong the power device that is independent of the running of electric power master network.According to the present invention, this purpose realizes by the following technical solutions.
In first aspect, the present invention aims to provide a kind of method of sampling that is used to have power autonomous power device, test signal from this power device is determined by sampling with the particular sample rate, implement the sampling of test signal so that reduce the power consumption of power supply in quasi-continuous mode, the sampling time section that qualification is implemented to sample in uninterrupted mode, and allow between the sampling time section, not implement the sampling gap of sampling, and, produce additional signal so that detect additional parameter, with value according to additional signal, the duration and/or the frequency in control sampling gap.Therefore, in the signal sampling process at repetition time point place, allow intermittent sampling gap.During the sampling time section, implement sampling with sufficient frequency thereby with the sampling rate of abundant qualification.The result of this method is, reduced to use to the power autonomous power consumption of carrying out the power device of signal sampling of small part, and testing reliability requirement without limits basically.
In the above-mentioned method of sampling, can also be according to the availability of required test signal, the dead time during the selection sampling gap and the ratio of the wakeup time during the sampling time section.
In addition, in the above-mentioned method of sampling, can also during the sampling gap, disconnect a plurality of power consumption components of power device, perhaps, if desired the excitation samples time period, then above-mentioned a plurality of power consumption components be switched to stand-by state.
Guarantee to reduce as much as possible power consumption according to the above embodiments, and guarantee that simultaneously this power device keeps higher availability.
In the above-mentioned method of sampling, also comprise:
A) allow according to the rule or the sampling gap in the time interval at random, and/or
B) duration and/or the frequency in sampling gap increase along with the increase of power source aging.
Above-mentioned step a) allows the sampling gap in statistical favourable distribution, so that keep the sampling gap lower to the influence of testing reliability.
In each above-mentioned method of sampling, during the sampling time section,
A) sampling rate keeps constant, or
B) sampling rate reduces along with the increase of power source aging.
Step b) in this embodiment and the said method relates to further improved measure, has considered specifically that promptly power supply reduces power consumption also remaining serviceable life.
In the method for sampling of the present invention,
A) power device is a gasometer, and test signal be used for determining gasometer signal that gas is supplied with and
B) use the temperature signal that produces by the temperature sensor that is used for the testing environment temperature, perhaps use the gas consumption signal of measuring in the time in associated period, as additional signal.
In the above-mentioned method of sampling,
A) control module by gasometer repeats initialization to the measurement of environment temperature, and the temperature signal that obtains compares with temperature threshold, this temperature threshold with lag behind relevant and
B) if temperature threshold is higher than temperature signal, then excitation has first operator scheme in non-frequent sampling gap and/or short sampling gap, if temperature threshold is lower than temperature signal, then excitation has second operator scheme in frequent sampling gap and/or long sampling gap.
In the above-mentioned method of sampling,
A) the gas consumption signal is repeated to determine by the control module of gasometer, and with the gas consumption threshold, described gas consumption threshold value with lag behind relevant and
B) if the gas consumption threshold value is lower than the gas consumption signal, then excitation has first operator scheme in non-frequent sampling gap and/or short sampling gap, if the gas consumption threshold value is higher than the gas consumption signal, then excitation has second operator scheme in frequent sampling gap and/or long sampling gap.
In the method for sampling of the present invention,
A) test signal is the motor message from motion detector, and
B) dead time during the selection sampling gap and the ratio of the wakeup time during the sampling time section make people, vehicle or other targets can not pass through to want monitored zone under situation about not being detected, and
C) make allow for 10ms to 1ms the dead time during the sampling gap, be preferably 50ms to 500ms, more preferably 100ms to 300ms.
In such scheme, how the gap of pointing out to sample is optimized according to additional signal.For the electronics gasometer; this relates to according to temperature signal control sampling gap; because obvious change takes place in gas consumption meeting to be measured along with environment temperature; or relate to according to the gas consumption control sampling gap of determining because gas supply with behavior usually can be consistently but not change at random.
For motion detector, wherein provided the distribution on the scope and time in sampling gap, making not to influence monitoring to motion.
In another aspect, the present invention relates to a kind of power device that is used in particular for implementing said method, comprise: produce proving installation and control module by sampling with evaluate test signals with the particular sample rate, and intermittent at least power power autonomous that comprises at least one power consumption components that is used for power device, this power device has the quasi-continuous sampling pattern that comprises sampling time section alternately and sampling gap, and, provide switching device shifter so that power device automaticallyes switch between the dead time during wakeup time during the sampling time section and the sampling gap, and provide attachment device, be used for producing additional signal according to additional parameter, comprise control device with switching device shifter, it is used for duration and/or frequency according to the value control sampling gap of additional signal.
In explanation and accompanying drawing and dependent claims subsequently, further specify embodiments of the invention, advantage and application.
Description of drawings
In the accompanying drawing:
Fig. 1 has schematically shown battery powered electronics gasometer;
Fig. 2 is a block diagram, has shown the battery powered motion detector that is electrically connected with actuator wireless;
Fig. 3 has schematically shown the power-save operation that has the power device in signal sampling and sampling gap according to the present invention;
Fig. 4 has shown the power device power consumption as the function of input sampling rate;
Fig. 5 has schematically shown second power-save operation of power device when reducing sampling rate; And
Fig. 6 has shown the 3rd power-save operation of the power device of the blocked operation pattern with external trigger.
Identical parts have identical Reference numeral in the accompanying drawing.
Embodiment
Fig. 1 schematically show electronics gasometer 1 ', its base configuration can learn that this instructions comprises whole lists of references of being quoted in the document and the document in 164,361 documents such as grade from for example EP1.Electronics gasometer 1 ' be set at usually in the bypass 16 of tracheae 15, and detect the there, the wind speed test signal 101b to sampling via the air-flow of bypass 16, and, based on the branching ratio that is limited, express the accurate measurement of supplying with via the gas of being responsible for 15.Described sampling is implemented with specific sampling rate, and gasometer 1 ' in implement by the control module 103 that is used for input and signal Processing, particularly implement by microcontroller 103.Preferably, gasometer 1 ' the have electronics CMOS chip 100 that is used for the wind speed gas flow measurement.Because gasometer 1 ' and be complete electronics, it can be independent of the electric power master network turns round, or utilizes battery 105 or accumulator 105 to turn round voluntarily.Power autonomous 105 can be any battery supply, or even rechargeable battery or accumulator.Battery 105 also can be arranged on device 1,1 ' outside.
Fig. 2 has schematically shown battery powered wireless motion detectors or has had detecting device 1.Detecting device 1 comprises proving installation 100,101,102 and the control module 103 that is used to produce with evaluate test signals 100b, utilizes described test signal 100b can detect the motion of target or has 100a.To moving or existing the detection of signal 100b to realize by sampling equally.It is power autonomous 105 that detecting device 1 comprises, it is used for the intermittent at least power supply of at least one power consumption components 100,101,102,103,104 of detecting device 1.Power consumption components is specifically related to: motion sensor 100, Data Detection parts or signal processing unit 101,102, be used to discern people's electronics assessment unit 103 and communication component 104.Target to be detected can relate to people, animal, bicycle, automobile etc.Motion detector 1 comprises for example heat-ray sensor 1 (PIR), but also can comprise: based on the active IR detecting device of infrared external reflection, based on the active ultrasonic detector of ultrasonic reflections or Doppler effect, noise detector, active microwave detector etc.With the widely used heat-ray sensor of Reference numeral 100 expressions, described detecting device comprises two pyroelectric crystal A, A ', and these two pyroelectric crystals link together according to opposite polarity.Heat radiation 100a based on the thermal target that is moving, crystal A, A ' sends characteristic Electronic Testing signal 100b, it is amplified in advance by comprising the field effect transistor that drain D, the collection utmost point and capacitive character are connected to the source S of ground connection GND, in signal amplifier 101, further amplify, in A/D converter 102, convert digital signal to, and finally evaluated in microcontroller 103.Especially, under the situation that modified is used, when the installation site of storage does not have direct electric power master network inlet or when system comprises a plurality of sensors and actuator 2, need allow detecting device 1 be independent of actuator 2 installations.Like this, should be able to utilize battery 105 sensor element 1 that turns round, and, 2 switch command preferably transmitted from sensor 1 to actuator by wireless connections 3.For this reason, detecting device 1 has transmitter 104, and actuator 2 has receiver 204, and they can play a role based on radiowave, microwave, sound wave etc.In addition, in order to control light source, veil, fan, air-conditioning unit, heating system or other electrical equipment, actuator 2 comprises independent microcontroller 203 and switch 200, particularly postpones or semiconductor switch 200.If there is the additional control that depends on light, then photosensitive part 5 can be photoelectric cell, light resistance (LDR=photoresistance), phototransistor etc.In addition, between detecting device 1 and actuator 2, be under the situation of radio communication, give the outline 3 of actuator 2 except being used to transmit order, can also have towards returning of detecting device 1 and communicate by letter 4.Return communication 4 and be used for transmitting how connect role to detecting device 1 notice, if necessary, be adjusted to optimizing level, particularly make its reduction so that will transmit output level from actuator 2.
Fig. 3 shows the traditional method of sampling 12 and the method for sampling of the present invention 13, in traditional method of sampling 12, implement test signal 100b continuously in uninterrupted mode, the sampling 12 of 101b, in contrast, in the method for sampling 13 of the present invention, in order to reduce power autonomous 105 power consumption I, implement the sampling 13 of test signal 101b quasi-continuously, promptly, the sampling time section 14 that qualification is implemented to sample in uninterrupted mode ', and allow sampling time section 14 ' between do not implement the sampling gap 14 of sampling.In other words, replaced equidistant or continuous at least sampling 12, implemented sampling with the pulse mode 13 that wherein allows detector gap or sampling gap 14.Therefore, it is constant substantially or constant to keep sample rate f, but intermittently suspends or interruption.Like this, just can be independent of the remaining life of battery 105 basically and carry out pulse mode 13.The following describes several embodiment.
Should be according to required test signal 101b, the availability of 100b, particularly be the availability of required gas consumption signal 101b or motor message 100b, select dead time during the sampling gap 14 and sampling time section 14 ' during the ratio of wakeup time.Can realize power saving like this: during sampling gap 14, disconnect power device 1,1 ' a plurality of preferred all power consumption components 100,101,102,103,104, perhaps, if desired sampling time section 14 ' automatically exciting, then above-mentioned a plurality of preferred all power consumption components are switched to stand-by state.For this reason, for example microcontroller 103 is waken in for example running in microcontroller 103 of clock the every 0.1s of described clock or 1s or 10s, and generation sample window 14 '.
Can allow to sample gap 14 according to time interval rule or at random.Along with the aging increase of power supply 105, the duration and/or the frequency in sampling gap 14 also can increase.As a result, though install 1,1 ' availability reduce, battery still can remain intermittence and can utilize in the long time cycle, in addition, can also prolong the serviceable life of battery.Therefore, selected detector gap 14 is long more in pulse mode 13, then just can reduce power consumption I more muchly.What lost is: test signal 100b, and the returning tracking ability of 101b becomes more weak, and mainly is, and reaction or response time are extended until can detected gas consuming 101a or motion 100a.If select dead time 14 or park mode 14 and wakeup time 14 ' ratio, make that the lasting change among the gas consumption 101a is detected, perhaps make the people under the situation that does not have monitored or attention, not pass and want controlled zone, good trading off just occur.For this reason, for gasometer 1 ', second magnitude and even may be that the dead time 14 or the detector gap 14 of minute magnitude is admissible, for motion detector, 100 milliseconds (ms) to the dead time 14 or the detector gap 14 of hundreds of millisecond be admissible.
Fig. 4 shows the function of the power consumption I of data detection system 101-103 or microcontroller 103 as sampling rate or period frequency f.Total power consumption 11 comprises base load 10 and depends on the part of sample frequency f.Base load 10 comprises: the power consumption I of microcontroller 103 in the park mode, the consumption of amplifier 101, the consumption of sensor 100 (if these can not cutly be talked about), and the leakage current of other assemblies.That part that depends on frequency increases basically pro rata, and at high-frequency f place, has surpassed along with frequency f increases pro rata.Therefore, if make sample rate f reduce the factor 2, then data detection system 101-103 for example the power consumption I of analog/digital converter 102 just can be reduced by half by approximate.
Gasometer 1 ' correlated sampling rate f in the scope of for example 0.1Hz to 1Hz.Be used to assess and detect in people's the frequency range of correlated sampling rate f between approximate 0.1Hz and 10Hz of infrared motion detector 1.Therefore, in theory, must be with i.e. 2Hz or the 20Hz detection system 1 that turns round at least of the twice at least of sampling rate.For best-evaluated, even in motion detector 1, operate with 75Hz.So just increased the reliability of motion detection by motion detector 1.Yet, if near finishing, the more important thing is the serviceable life of battery 105, measure in the 101b process or detecting man-hour, even be that cost guarantees to prolong running operation to reduce reliability in gas consumption.
Fig. 5 shows an example, wherein utilizes f
1The traditional sampling rate of=75Hz has realized the prediction battery T in serviceable life in 5 years
EIf after 4 years, f
1The sampling rate of=75Hz is decreased to f
2=60Hz, then extending to serviceable life just is 6 years, and, utilize to be decreased to f once more
3=45Hz then extends to above 6 years serviceable life.Therefore, with the detecting reliability that relatively reduces a little, system 1 can turn round considerable time, all exhausts until the electric capacity of battery 105.Above-mentioned sample rate f
1, f
2, f
3This method of sampling that reduces along with the aging increase of power supply 105 or power supply 105 reducing of term of life of residue can freely combine with the permission regulation in sampling of the present invention gap 14.In the situation of motion detector 1, reduce sample frequency f
1, f
2, f
3Also must be with the behavior that allows sampling gap 14 as the function of wanting monitored area of space, as the function of visual field, and determine as the function of a plurality of motion detectors 1.In any situation, wish to guarantee minimum sample rate in the cycle at minimum time so that guarantee at least off and on device 1,1 ' function electric capacity.
Fig. 6 shows a preferred embodiment, wherein, produces additional signal 6, and 5b, 17b, 18b be so that detect additional parameter 5a, 17a, and 18a, and, according to additional signal 6,5b, 17b, the value of 18b, the duration and/or the frequency in control sampling gap 14.In the situation of gasometer 1 ' (Fig. 1), wherein test signal 101b is the gasometer signal 101b that is used for determining gas supply 101a, for example temperature signal 6,17b is used as additional signal 6,17b, 18b uses by temperature sensor 17 described temperature signals that produce, that be used for testing environment temperature 17a, or use the gas consumption signal 6 on cycle correlation time, measure, 18b.By gasometer 1 ' control module 103, help the measurement of environment temperature 17a is repeated initialization, and the temperature signal 6 that obtains, 17b and temperature threshold 60,61,62 compare, described temperature threshold 60,61,62 is specifically relevant with hysteresis, and, if temperature threshold 60,61,62 are higher than temperature signal 6,17b, then excitation has first operator scheme 7 in non-frequent sampling gap and/or short sampling gap 14, if temperature threshold 60,61,62 are lower than temperature signal 6,17b, and then excitation has second operator scheme 8 in frequent sampling gap and/or long sampling gap 14.Mode or append mode as an alternative, by gasometer 1 ' control module 103 also can repeat to determine gas consumption signal 6,18b, this gas consumption signal can with gas consumption threshold value 60,61,62 compare, described gas consumption threshold value 60,61,62 is specifically relevant with hysteresis, and, if gas consumption threshold value 60,61,62 are lower than gas consumption signal 6,18b, then excitation has first operator scheme 7 in non-frequent sampling gap and/or short sampling gap 14, if gas consumption threshold value 60,61,62 are higher than gas consumption signal 6,18b, and then excitation has second operator scheme 8 in frequent sampling gap and/or long sampling gap 14.
In the situation of motion detector 1 (Fig. 2), wherein test signal 100b is the motor message 100b that is used to detect the motion or the existence of target, can understand like this on principle: according to ambient light signal 5b testing environment luminance brightness 5a, motion detector 1 switches between second operator scheme 8 of first operator scheme 7 of for example night time operation 7 and for example day time operation 8.In other words, should produce ambient light signal 5b by photosensitive part 5, so that according to ambient light signal 5b testing environment luminance brightness 5a, and, should control the duration and/or the frequency in sampling gap 14.
Fig. 6 show in detail gasometer 1 ' two embodiment and an embodiment of motion detector 1.In fact, in first situation, the temperature curve 17b of environment temperature 17a is weighed in additional signal 6 expressions, in second situation, the associated gas consumption signal 18b that associated gas consumes 18a is weighed in additional signal 6 expressions, in the 3rd situation, the ambient light signal 5b of environmental light brightness 5a is weighed in additional signal 6 expression, and the additional signal 6 under above-mentioned three kinds of situations is respectively as the function of one day moment t (or another parameter).
The morning when being higher than threshold value 60, be converted to second operator scheme 8, and therefore reduce device 1,1 ' the sampling activity.When being lower than threshold value 60, be converted to first operator scheme 7 at night, and therefore increase device 1,1 ' the sampling activity.The above-mentioned time is selected as just example, and also can be associated with the sampling activity in a different manner.Utilize the sampling activity, set the duration and/or the frequency that allow sampling gap 14.For fear of switching back and forth in conversion stage, introducing lags behind also makes: threshold value 61 that increases by trigger in the morning and the threshold value 62 that reduces by trigger at night are as switching standards.In year, this battery powdered device 1,1 ' can turn round the approximately half time for 8 times in the second more energy-conservation operator scheme.Therefore, can prolong the serviceable life of battery fully.
On the other hand, the present invention also relates to be used to implement the device 1,1 of the described method of sampling ', particularly be gasometer 1 ' or according to the motion detector 1 of Fig. 2 according to Fig. 1.This power device 1,1 ' comprising: proving installation 100,101,102 and control module 103, they are by with particular sample rate f, f
1, f
2, f
3Sample 12,13 and produce and evaluate test signals 100b 101b; And power autonomous 105, it is used for power device 1,1 ' at least one power consumption components 100,101,102,103,104 intermittent at least power supply, described power device 1,1 ' have quasi-continuous sampling pattern 7,8 and switching device shifter 103b, this quasi-continuous sampling pattern 7,8 have alternately sampling time section 14 ' and sampling gap 14, this switching device shifter 103b be used to allow described power device 1,1 ' sampling time section 14 ' wakeup time and automatically switch between dead time in sampling gap 14.Be these several examples on the one hand below.
During sampling gap 14, disconnect a plurality of preferred all power consumption components 100,101,102,103,104 of power device 1, perhaps, if the necessary excitation samples time period 14 ', then above-mentioned a plurality of preferred all power consumption components would be switched to stand-by state.Control module 103 can comprise switching device shifter 103b, and microcontroller 103 preferably.Switching device shifter 103b represents control circuit 103b, it can be arranged within the control module 103, also can be arranged on outside the control module 103, utilize its help, by sample window 14 ' and sampling repeating between the gap 14 switch the serviceable life that can prolong battery.
Advantageously, be provided for producing the attachment device 5,17,103 of additional signal 6,5b, 17b, 18b according to additional parameter 5a, 17a, 18a, and, switching device shifter 103b comprises control device, and it is used for duration and/or frequency according to the value control sampling gap 14 of additional signal 6,5b, 17b, 18b.Specifically, switching device shifter 103b comprises comparator device, it is used for comparison additional signal 6,5b, 17b, 18b and predetermined threshold value 60,61,62, and, power device 1,1 ' have first operator scheme and second operator scheme, this first operator scheme has non-frequent sampling gap and/or short sampling gap 14, this second operator scheme has frequent sampling gap and/or long sampling gap 14, in addition, switching device shifter 103b comprises calculation element, and its result according to comparison is used for the switching between first operator scheme 7 and second operator scheme 8.
If install 1,1 ' be gasometer 1 ', then test signal 101b is the gasometer signal 101b that is used for determining gas supply 101a, and attachment device 17,103 comprises and is used for producing temperature signal 6 according to environment temperature 17a, the temperature sensor 17 of 17b or be used for determining gas consumption signal 6, the proving installation 103 of 18b in the time in associated period.Particularly, if temperature signal 6,17b is higher than temperature threshold 60,61,62, if perhaps gas consumption signal 6,18b is lower than gas consumption threshold value 60,61,62, and then switching device shifter 103b encourages second operator scheme.
Theme of the present invention also relates to building services or buildings, it comprise power device 1,1 with method of sampling of the present invention '.
The Reference numeral table
1 power device, the voluntarily motion detector of running
The gas gauge of 1 ' voluntarily running
100 motion sensors, pyroelectric detector, heat-ray sensor (PIR); The air-flow wind speed Meter
There is signal in the 100a motor message, heat radiation
The 100b test signal, motor message
101a gas is supplied with
The 101b test signal, the gas gauge signal
101 signal amplifiers
102 A/D converters
103 control modules, microcontroller, μ C, microprocessor
The 103b switching device shifter
104 communication components, transmitter, transceiver
105 is power autonomous, battery
2 actuators
200 photoswitches cover control
203 control modules, microprocessor, μ C, microprocessor
204 communication components, receiver, transceiver
3 outlines, command direction
4 return communication
5 photosensitive parts, light resistance, phototransistor
The 5a environmental light brightness, daylight, artificial light
The 5b ambient light signal
6 are used for the signal of brightness, temperature, gas consumption
60 are used for the threshold value of brightness, temperature, gas consumption; Trigger
61 threshold values add hysteresis
62 threshold values deduct hysteresis
7 first operator schemes, the night time operation pattern
8 second operator schemes, day mode of operation
9 power consumption, energy consumption
10 power consumption base loads
11 total power consumption
12 continuous samplings
13 intermittently (pulse mode) samplings
14 sampling gaps
14 ' sampling time section
15 tracheaes
16 bypasses
17 sensors, temperature sensor
The 17a environment temperature
The 17b sensor signal, temperature signal
The significant gas consumption of 18a
The significant gas consumption signal of 18b
A, A ' pyroelectric crystal
The A/D analog/digital
The D drain electrode
The S source electrode
GND ground, ground connection
F, f
1, f
2, f
3Sampling rate, period frequency
I power consumption
One day the moment of t, the time
T battery serviceable life (is unit with the year)
T
EThe battery serviceable life of prediction
Claims (19)
1. method of sampling that is used to have the power device (1,1 ') of power autonomous (105), (100b is 101b) by with particular sample rate (f, f from the test signal of this power device (1,1 ')
1, f
2, f
3) sample (12,13) determine, it is characterized in that, and quasi-continuous ground (13) enforcement test signal (100b, sampling 101b) is so that reduce the power consumption (I) of power supply (105), the sampling time section (14 ') that definition is implemented to sample in uninterrupted mode, and allow between sampling time section (14 '), not implement the sampling gap (14) of sampling, and, additional signal (6 produced, 5b, 17b is 18b) so that detect additional parameter (5a, 17a, 18a), according to additional signal (6,5b, 17b, value 18b), the duration and/or the frequency in control sampling gap (14).
2. the method for sampling as claimed in claim 1 is characterized in that, according to required test signal (100b, availability 101b), the dead time during the selection sampling gap (14) and the ratio of the wakeup time during the sampling time section (14 ').
3. the method for sampling as claimed in claim 1 or 2, it is characterized in that, during sampling gap (14), disconnect power device (1,1 ') a plurality of power consumption components (100,101,102,103,104), perhaps, if desired the excitation samples time period (14 '), then above-mentioned a plurality of power consumption components are switched to stand-by state.
4. the method for sampling as claimed in claim 1 or 2 is characterized in that:
Permission is according to the sampling gap (14) in rule or at random time interval, and/or
The duration in sampling gap (14) and/or frequency increase along with the aging increase of power supply (105).
5. the method for sampling as claimed in claim 3 is characterized in that:
Permission is according to the sampling gap (14) in rule or at random time interval, and/or
The duration in sampling gap (14) and/or frequency increase along with the aging increase of power supply (105).
6. the method for sampling as claimed in claim 1 or 2 is characterized in that, during sampling time section (14 '), it is constant that sampling rate (f, 13) keeps, or sampling rate (f
1, f
2, f
3) reduce along with the aging increase of power supply (105).
7. the method for sampling as claimed in claim 1 is characterized in that:
Power device (1,1 ') be gasometer (1 '), and test signal (101b) is the gasometer signal (101b) that is used for determining gas supply (101a), the temperature signal that use produces by the temperature sensor (17) that is used for testing environment temperature (17a) (6,17b), perhaps use the gas consumption signal of measuring in the time in associated period (6,18b), as additional signal (6,17b, 18b).
8. the method for sampling as claimed in claim 7 is characterized in that:
Control module (103) by gasometer (1 ') repeats initialization to the measurement of environment temperature (17a), and the temperature signal that obtains (6,17b) compare with temperature threshold (60,61,62), this temperature threshold relevant with hysteresis and
If temperature threshold (60,61,62) be higher than temperature signal (6,17b), then excitation has first operator scheme (7) in non-frequent sampling gap and/or short sampling gap (14), if temperature threshold (60,61,62) (6,17b), then excitation has second operator scheme (8) in frequent sampling gap and/or long sampling gap (14) to be lower than temperature signal.
9. the method for sampling as claimed in claim 7 is characterized in that:
The gas consumption signal (6,18b) control module (103) by gasometer (1 ') repeats to determine, and compares with gas consumption threshold value (60,61,62), described gas consumption threshold value with lag behind relevant and
If gas consumption threshold value (60,61,62) be lower than gas consumption signal (6,18b), then excitation has first operator scheme (7) in non-frequent sampling gap and/or short sampling gap (14), if gas consumption threshold value (60,61,62) (6,18b), then excitation has second operator scheme (8) in frequent sampling gap and/or long sampling gap (14) to be higher than the gas consumption signal.
10. the method for sampling as claimed in claim 1 is characterized in that:
Test signal (100b) is the motor message (100b) from motion detector (1), and
The dead time during the selection sampling gap (14) and the ratio of the wakeup time during the sampling time section (14 ') make people, vehicle or other targets can not pass through to want monitored zone under situation about not being detected, and
Allow for 10ms to 1ms the dead time during the feasible sampling gap (14).
11., it is characterized in that: allow for 50ms to 500ms the dead time during the described sampling gap (14) as the claim 1 or the 10 described method of samplings.
12., it is characterized in that: allow for 100ms to 300ms the dead time during the described sampling gap (14) as the claim 1 or the 10 described method of samplings.
13. a power device (1,1 ') that is used to implement the described method of each claim of front comprises by with particular sample rate (f, f
1, f
2, f
3) sample (12,13) produce and evaluate test signals (100b, proving installation 101b) (100,101,102) and control module (103), and comprise at least one power consumption components (100,101 that is used for power device (1,1 '), 102, power autonomous (105) of intermittent at least power supply 103,104) is characterized in that:
Power device (1,1 ') has quasi-continuous sampling pattern (7,8), and described quasi-continuous sampling pattern (7,8) has sampling time section (14 ') alternately and sampling gap (14), and
Switching device shifter (103b) is provided, is used for described power device (1,1 ') and between the dead time during wakeup time during the sampling time section (14 ') and the sampling gap (14), automaticallyes switch,
Attachment device (5,17,103) is provided, be used for according to additional parameter (5a, 17a, 18a) produce additional signal (6,5b, 17b, 18b) and
Switching device shifter (103b) comprises control device, its be used for according to additional signal (6,5b, 17b, the duration and/or the frequency in 18b) value control sampling gap (14).
14. power device as claimed in claim 13 (1,1 ') is characterized in that:
During sampling gap (14), disconnect a plurality of power consumption components (100 of power device (1), 101,102,103,104), perhaps, if the necessary excitation samples time period (14 '), then above-mentioned a plurality of power consumption components are switched to stand-by state, and/or control module (103) comprises switching device shifter (103b).
15. power device as claimed in claim 14 (1,1 ') is characterized in that: described control module (103) is microcontroller (103).
16. power device as claimed in claim 13 (1,1 ') is characterized in that:
Switching device shifter (103b) comprises comparator device, be used for the comparison additional signal (6,5b, 17b, 18b) with predetermined threshold value (60,61,62),
Power device (1,1 ') having first operator scheme (7) and second operator scheme (8), this first operator scheme (7) has non-frequent sampling gap and/or short sampling gap (14), and this second operator scheme (8) has frequent sampling gap and/or long sampling gap (14), and
Switching device shifter (103b) comprises calculation element, and its result according to comparison is used for the switching between first operator scheme (7) and second operator scheme (8).
17., it is characterized in that as the arbitrary described power device of claim 13-16 (1,1 '):
Power device (1,1 ') is gasometer (1), and test signal (101b) is to be used for determining that gas supplies with the gasometer signal (101b) of (101a),
Attachment device (17,103) comprise be used for according to environment temperature (17a) produce temperature signal (6, temperature sensor 17b) (17) or be used for associated period determine in the time gas consumption signal (6, proving installation 18b) (103).
18. power device as claimed in claim 17 (1,1 ') is characterized in that, if:
Temperature signal (6,17b) be higher than temperature threshold (60,61,62), or
The gas consumption signal (6,18b) be lower than gas consumption threshold value (60,61,62),
Then switching device shifter (103b) encourages second operator scheme (8).
19., it is characterized in that as each described power device (1,1 ') of claim 13～16:
Power device (1) is motion detector (1), and test signal (100b) is used to detect the motion of target or has (100a),
Motion detector (1) designs in order to detect people, animal and/or vehicle, and comprises heat-ray sensor (100), and
Be provided for the wireless device that returns communication (4) and be used for the transmission output of motion detector (1) is adjusted into required output level from actuator (2) to motion detector (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10356069.6 | 2003-12-01 | ||
| DE10356069A DE10356069A1 (en) | 2003-12-01 | 2003-12-01 | Method and device for reducing power consumption in battery-operated devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1886766A CN1886766A (en) | 2006-12-27 |
| CN100468287C true CN100468287C (en) | 2009-03-11 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800355287A Expired - Fee Related CN100468287C (en) | 2003-12-01 | 2004-11-29 | Method and apparatus for reducing power consumption in battery-operated devices |
Country Status (6)
| Country | Link |
|---|---|
| CN (1) | CN100468287C (en) |
| AU (1) | AU2004295729A1 (en) |
| BR (1) | BRPI0417082A (en) |
| DE (1) | DE10356069A1 (en) |
| RU (1) | RU2354983C2 (en) |
| WO (1) | WO2005055017A2 (en) |
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| ITMI20071476A1 (en) * | 2007-07-23 | 2009-01-24 | Claber Spa | "COMMUNICATION SYSTEM BETWEEN IRRIGATION DEVICES UNITS" |
| DE102007036053B4 (en) * | 2007-08-01 | 2015-05-13 | Ams Ag | Input device for an electronic device, electronic device, integrated circuit and method |
| GB2453325A (en) * | 2007-10-01 | 2009-04-08 | Npower | Monitoring utility consumption |
| EP2068213A1 (en) * | 2007-12-05 | 2009-06-10 | Siemens Aktiengesellschaft | Production facility with wireless sensor |
| US8619240B2 (en) * | 2011-02-14 | 2013-12-31 | Fairchild Semiconductor Corporation | Adaptive response time acceleration |
| CN102305647B (en) * | 2011-05-10 | 2014-11-05 | 安徽润尔兴仪表有限公司 | Intermittent excitation electromagnetic flowmeter and control method thereof |
| DE102011117732B3 (en) * | 2011-11-07 | 2013-03-21 | Sensus Spectrum Llc | Electromechanical switch connected to a fluid meter |
| US9207683B2 (en) | 2012-01-20 | 2015-12-08 | Infineon Technologies Austria Ag | Flow meter device and method of operation |
| CN103946047B (en) * | 2012-09-26 | 2016-10-19 | 观致汽车有限公司 | The interval of set of cells adjusts system and method |
| CN103278200B (en) * | 2013-05-20 | 2017-06-06 | 新奥科技发展有限公司 | A kind of detection of gas flow rate method |
| JP6248326B2 (en) * | 2013-10-18 | 2017-12-20 | 国立大学法人東北大学 | Meal-type sensor and sensing method |
| EP3199931A1 (en) * | 2016-01-28 | 2017-08-02 | Kamstrup A/S | A consumption meter with a power source energy calculation unit |
| CN107222366B (en) * | 2017-06-08 | 2019-12-20 | 江苏博大光通物联科技有限公司 | Inspection well environment monitoring method, equipment and system based on low-power-consumption wide area network |
| CN110584611A (en) * | 2019-09-24 | 2019-12-20 | 喜临门家具股份有限公司 | Sleep monitoring system with good energy-saving effect |
| CN111781450A (en) * | 2020-06-30 | 2020-10-16 | 歌尔科技有限公司 | Electric parameter sampling method, sampling device, earphone and readable storage medium |
| CN119374699B (en) * | 2024-12-24 | 2025-04-11 | 浙江威星智能仪表股份有限公司 | Gas overcurrent detection method and membrane type gas meter |
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- 2004-11-29 AU AU2004295729A patent/AU2004295729A1/en not_active Abandoned
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- 2004-11-29 WO PCT/CH2004/000717 patent/WO2005055017A2/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| CN1886766A (en) | 2006-12-27 |
| RU2006118138A (en) | 2008-01-10 |
| WO2005055017A2 (en) | 2005-06-16 |
| DE10356069A1 (en) | 2005-06-23 |
| RU2354983C2 (en) | 2009-05-10 |
| WO2005055017A3 (en) | 2005-09-15 |
| AU2004295729A1 (en) | 2005-06-16 |
| BRPI0417082A (en) | 2007-03-13 |
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