CN103810799B - Solar energy radio doorbell - Google Patents
Solar energy radio doorbell Download PDFInfo
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- CN103810799B CN103810799B CN201210458793.2A CN201210458793A CN103810799B CN 103810799 B CN103810799 B CN 103810799B CN 201210458793 A CN201210458793 A CN 201210458793A CN 103810799 B CN103810799 B CN 103810799B
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C2201/00—Transmission systems of control signals via wireless link
- G08C2201/10—Power supply of remote control devices
- G08C2201/11—Energy harvesting
- G08C2201/114—Solar power
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- General Physics & Mathematics (AREA)
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- Engineering & Computer Science (AREA)
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- Alarm Systems (AREA)
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Abstract
A kind of wireless doorbell with solar energy for complete power.Its bell ringing device is operated in continuous print " open/close " pattern, and first the signal that button device sends is the persistent period continuous print RF carrier signal more than the shut-in time of bell ringing device；The opening time of bell ringing device, the receiver of bell ringing device did not have frequency transformation, if bandpas filter, low frequency low pass filter be more than or equal to the delayed time of bell ringing device；First power on installation time, if solaode obtain energy too low, send display or auditory tone cues.The power consumption of doorbell is extremely low, small and exquisite attractive in appearance, it is not necessary to use other energy.
Description
Technical field
The present invention relates to doorbell, further, relate to and a kind of utilize solar powered wireless doorbell.
Background technology
Based on custom, the solar energy described in people, it is actually and contains the energy that daily all light sends, and not simply mean to the energy of direct sunlight.Therefore, described solar energy, refers to the light ray energy in all daily life herein.
Doorbell includes the button device being placed on outdoors, and is placed on the bell ringing device of indoor.
At present, known doorbell, button device and bell ringing device adopt line to connect, or adopt dedicated radio link.Obvious wireless doorbell is convenient.Based on convenient and safety, the doorbell of the overwhelming majority now, button device and bell ringing device all adopt dedicated radio link.
The button device adopting the doorbell of dedicated radio link includes: encoder, button, transmitter, battery.Bell ringing device includes: decoder, sound equipment, receiver, battery.
Button and bell ringing device are substantially all and adopt traditional battery as the energy.Common batteries, after using a period of time, battery capacity can decline, and will be slowly decreased to below running voltage always, causes when button is pressed, it is impossible to normal operation.People outdoors can not pass through button completely, makes bell ringing device within doors send sound, and notice is to people within doors, and people within doors is an awkward thing by this.The decline of the capacity of battery is slowly, and people can not often go to check that the capacity of battery finds that it declines and changes battery, and therefore this doorbell battery capacity declines and the embarrassment that causes of losing efficacy often occurs.Even, change battery, be all often notify in the way of this embarrassment.In a word, must more renewing battery after a while, this not only bothers, and the battery pollution environment changed.
Present solar energy switch technology development, solar converter can convert light into electric energy, as all or part of energy being supplied to equipment work.
The challenge of solar energy doorbell is in that, user's output energy to requirement attractive in appearance and solaode.
At present, the output of state-of-the-art solaode is 0.02w/CM2, the energy of solaode output is directly proportional to the light intensity receiving irradiation, in direct ratio with irradiated area.The nominal output power of the solaode of certain area, refers to the output under the light intensity of 38000lux, this light intensity, and during with high noon 12, the light intensity under direct sunlight is close.On general daytime, indoor arbitrarily placement, under light intensity when non-direct sunlight, the power output of solaode would fall to less than the 1/3000 of nominal output power, after at dusk, drops to less than the 1/1000000 of nominal output power, until being 0.Solaode has relatively large output current time at most only 6 hours daytime.Being under 3.5v at output voltage, electric current when indoor non-direct sunlight is 2 μ A/cm2, the electric current 12 μ A h/cm of acquisition every day2, it is assumed that within every 4 days, having one day is the cloudy day, then the average current of acquisition is 9 μ A/cm2。
The bell ringing device of doorbell, has 1 radio receiver, this receiver, in order to whenever can timely respond to button device, it always all in duty, must consume electric current.At present, even if the radio receiver of at present most power saving, under 3.5v voltage, operating current is all at 300 more than μ A, and the total current that every day is expended is 300*24=7200 μ A h.For obtaining these energy, it is necessary to solar-electricity pool area be 7200/9=800cm2,
Based on reason attractive in appearance, the area of the solaode of user's tolerance is not over 5cm*8cm=40cm2, required and tolerate create huge difference, the energy that the energy that solaode produces consumes less than bell ringing device, which results in a challenge.Herein for simply, receive, but without counting bell ringing device in, the energy that the voice prompt that signal to send consumes, if counted in, in addition it is also necessary to bigger solar-electricity pool area.
Just current, unless bell ringing device is placed on the position of indoor light especially by user, for instance there is the position on position that sunlight is irradiated to or adjacent window limit, the energy otherwise provided by solaode completely is not enough to allow bell ringing device normal operation always.Even if like that, after some days cloudy daies, working condition is also not being met.Bell ringing device is placed on indoor location except specifying, and 2 must also have an external charging socket, in order to because insufficient light causes the inadequate and inoperable bell ringing device charging of power supply.So, the drawback occurring in that with adopting conventional batteries the same, even occur more frequent.
For button device, also there is similar situation.But, no matter day and night is in running order all the time for bell ringing device, waits the signal of button device, and button device, is only button when being triggered, and the short time sends, and, the number of times of the work that is triggered every day cans be counted on one's fingers, and all the other times are all in resting state.So, the energy that button device consumes is than bell ringing device much less.So, just have only to consider the situation of bell ringing device, equally, because the number of times that bell ringing device sends sound every day is also little, therefore the energy consumed, it is constantly in bell ringing device etc. compared with the energy that the duty of button device signal to be received consumes, is also little, so substantially can simply consider that bell ringing device such as is constantly at the situation of the energy that the duty of button device signal to be received consumes.
So many data listed above show, traditional doorbell, it is impossible to use solaode as unique power supply.The present invention thoroughly solves this problem, and the energy that solaode produces is far longer than the energy that bell ringing device consumes, and needs never to change battery, it is not required that external any power supply after making doorbell again.
Summary of the invention
In order to overcome existing doorbell often to occur embarrassment to need to change the trouble of battery and old and useless battery, the pollution of environment etc. is many-sided not enough, the present invention provides a kind of wireless doorbell, this doorbell uses solar energy clean energy resource completely, remain sufficient energy, it is no longer necessary to change battery, do not have the embarrassment of doorbell energy deficiency cisco unity malfunction, thoroughly overcome user to the contradiction between the output energy of requirement attractive in appearance and solaode.
For solving above-mentioned technical problem, according to the present invention, a kind of wireless solar energy doorbell is provided, there is the button device sending signal and receive the bell ringing device of signal, only using solaode is energy source, and when ambient light abundance, solaode provides operating current to doorbell and charges to rechargeable battery, when ambient light not enough even without time, rechargeable battery provides operating current to doorbell.
Described bell ringing device contains second timer (202), described bell ringing device is controlled by described second timer (202), it is operated in continuous print " open/close " pattern: when the opening timing time of intervalometer arrives, described bell ringing device is unlocked, etc. the signal that described button device to be received sends, the opening time of described bell ringing device is be more than or equal to the delayed time of bell ringing device；When, after one period of opening time of experience, described bell ringing device is closed, and receive capabilities is stopped, second timer (202) starts timing, until after one shut-in time of experience, starting again " open/a close " cycle.
Described acoustics circuit is according within the opening time, and whether described bell ringing device receives the signal that described button device sends, and starts and send sound or remain turned-off.
Described button device contains first timer (102), and described button device is controlled by described first timer (102), sends the shut-in time more than the described bell ringing device time of signal.
First described bell ringing device detects whether have signal on channel when being controlled open by described second timer (202)；
If it did not, immediately enter closed mode, wait the unlatching next time of described second timer (202)；
If it has, continue to be held open, to receive the partial data that button device sends.
What described bell ringing device adopted is the receiver not having frequency transformation.
Described button device has a personal-machine interface, when a user presses a button, sends display or sound instruction, to shift the sensation of user.
Described bell ringing device has man-machine interface, when bell ringing device is installed on excessively dark environment by user, for instance corner, behind the door time, it is possible to remind user, it is to avoid occur that bell ringing device can not this situation of daylighting occur completely.
For clearly and simply expressing, " closedown " word, mean in the present invention cut off its power supply or make it into resting state, " unlatching " word means it is powered or activates it to enter duty from dormancy.
The aspects of the invention, the energy that the energy of bell ringing device consumption consumes than existing bell ringing device is greatly reduced, the energy that solaode produces is far longer than the energy that bell ringing device consumes, user is made can only to use small and exquisite solaode attractive in appearance that doorbell just can be allowed to obtain required whole energy, therefore doorbell can be allowed to never need to change any battery again, or outside just can forever work also without accessing any energy.
Accompanying drawing explanation
Fig. 1 is the structure chart of button device.
Fig. 2 is the structure chart of bell ringing device
Fig. 3 is the graph of a relation between button device and bell ringing device signal
A controls the signal of bell ringing device
The signal that b button device is launched
The signal that c button device is launched
Fig. 4 is the format chart of the signal that button device is launched
A sends the content of signal
C receiver receives signal
D receiver can not receive signal
Fig. 5 is that receiver structure figure is amplified in tuning
Fig. 6 is superregenerative receiver structure chart
Fig. 7 is superregenerative receiver signal graph
The signal waveform of aRF input 601
B extinguishes the signal waveform of control signal 603 output
The signal waveform of c agitator 602 output
The signal waveform of d envelope detector 604 output
The signal waveform of e low pass filter 608 output
Fig. 8 is the superregenerative receiver structure chart improved
Fig. 9 is that the superregenerative receiver improved receives flow chart
Figure 10 is the man-machine interface figure of bell ringing device
Figure 11 is a powering up delay time schematic diagram
The signal that a button device is launched
B intervalometer exports the control signal of bell ringing device
The output of c bell ringing device receiver
Detailed description of the invention
As Fig. 1 shows, the button device 100 of the solar energy doorbell of dedicated radio link is adopted to include: encoder 101, first timer 102, button 103, solaode 104, charging control circuit 105, rechargeable battery 107, transmitter 106, man-machine interface 109.
As Fig. 2 shows, bell ringing device 200 includes: decoder 208, second timer 202, acoustics circuit 205, solaode 203, charging control circuit 207, rechargeable battery 206, receiver 201, man-machine interface 209, Micro-processor MCV 204.
When having light, solaode produces electric current, for other parts, and rechargeable battery is charged.Light is very weak or not sometimes, rechargeable battery flows out electric current, for other parts.
The signal of bell ringing device 200 button device 100 to be received such as always, therefore bell ringing device must work always, and the receiver 201 of bell ringing device consumes the energy of overwhelming majority bell ringing device.In order to reduce bell ringing device energy expenditure, the electric current reducing receiver 201 work itself first can be considered.The receiver of all of kind nearly all has this link of High frequency amplification, and in order to high-frequency signal being had certain low noise amplification ability, such as there is the gain of more than 12db, high frequency amplifier itself have to have certain bias current, the bias current of the amplifier itself no matter which kind of semiconductor technology is constituted at present, it is difficult to further decline
The present invention is by the energy consumption of very big amplitude reduction bell ringing device.
First aspect, by second timer 202, controls receiver 201 and bell ringing device 200 always works under continuous print " open/close " pattern, second timer 202 is within a period of time, close other all parts of bell ringing device, with asymmetric transfer energy consumption, reduce the average energy consumption of bell ringing device.
The high level of second timer 202 output opens the power supply of receiver 201 and bell ringing device 200, and the low level of second timer 202 output is closed in receiver 201 and bell ringing device 200, other parts except intervalometer.
Bell ringing device 200 time of being unlocked=TR_ON, be closed time=TR_OFF.As shown in Fig. 3 (a).During closedown, except second timer 202, cut off the energy supply of other all parts.Therefore, during closedown, bell ringing device 200 consumes atomic few energy, consumes the overwhelming majority energy during unlatching.
" opening/close " under pattern, the mean consumption of bell ringing device is reduced to always on mode approach:
TR_ON/(TR_ON+TR_OFF)≈TR_ON/TR_OFF。(1)
T_ON is more little, and TR_OFF is more big, can both reduce the average energy consumption of bell ringing device.
If after the button 103 of button device 100 is pressed, its transmitter 106 will be opened, and launch signal, as shown in Fig. 3 (b).Launch time=TT_ON.Typically, since the content that button device 100 sends is little, therefore TT_ON is only small, if button device 100 sends just within the shut-in time of bell ringing device 200, bell ringing device 200 will be unable to receive, as shown in Fig. 3 (b).So TT_ON launch time must be extended by button device 100, until
TT_ON≥TR_OFF,(2)
Guarantee can be received by bell ringing device 200.So after the button 103 of button device 100 pressed, transmitter 106 is by the uninterrupted repeat its transmission of content of required transmitting, until launch time is more than the shut-in time TR_OFF of bell ringing device 200.As Fig. 3 (c) shows.
So, bell ringing device 200 shut-in time is extended, launch time is increased when but needing button device 100 to send, energy consumption has been transferred to button device 100 from bell ringing device 200, and button device 100 emission current is more than 10 times that bell ringing device 200 receives electric current, it appears that in the energy consumption that bell ringing device 200 is saved, need more to consume on button device 100, in this internal system of doorbell, energy consumption transfer seems to lose more than gain.
Because the signal of bell ringing device to be detected at any time, bell ringing device 200 continues to work always, and button device 100 is only triggered unlatching by this event of button and launches once, button triggers the number of times of this event appearance every day and is generally not more than 10 times, and bell ringing device 200 is if it is assumed that a unlatching/closedown cycle is 200ms
Need number of times=60*60*24*1000/200=432000 time (3) opened/close every day
That is extend bell ringing device 200 shut-in time, causing that energy consumption shifts to button device 100 from bell ringing device, and the transfer of this energy consumption is asymmetrical, button device 100 adds a little energy consumption, and bell ringing device 200 saves huge energy.Therefore, it should extend the shut-in time TR_OFF of bell ringing device 200 as far as possible.
But, it practice, bell ringing device 200 always works at the pattern less effective in actual use of continuous print " open/close ", because closing bell ringing device a period of time TR_OFF, can cause connecing bell ringing device 200 response time elongated.As Fig. 3 (c) shows, user is after A point button, and in worst situation, the bell ringing device of Fig. 3 (a) can after the few TR_OFF of delay inequality, could receive and jingle bell at the B point of Fig. 3 (a), so the maximum reaction delay time=TR_OFF after button.In order to save power consumption, it is necessary to extend TR_OFF, but when TR_OFF extends to more than 300ms, when namely the audio response delay time after button is more than 300ms, the delayed of this reaction can be arrived by the sensory experience of human body, it is assumed that this time is called T_FEEL as far as possible.As T_FEEL > after 300ms, user may feel that the response time after button is elongated, can produce such as the bad impression of " feel of the button of button device is bad, insufficient sensitivity, somewhat malfunctioning ".Namely bell ringing device " open/close " this mode of operation, can be subject to the restriction of the subjective sensation of people, use the present invention, it is possible to exceed original this restriction.What adopted is the method for human body " sensation transfer ".For common existing doorbell, after user key-press, it is thus achieved that the unique interface of the information of doorbell normal operation is the sound that bell ringing device sends.Here the interface of another information obtaining doorbell normal operation for user is increased, after user key-press, this interface produces reaction at once, user just creates the sensation of doorbell normal operation, transmit even if the sound of bell ringing device is more delayed, for instance 1500ms, even at evening, further by the time lag of this sound to more than 2500ms, user will not produce the insensitive bad impression of above-mentioned doorbell.The i.e. sensation of user, it is transferred to the new man machine interface of button device from the sound of bell ringing device, therefore the sound of bell ringing device is no longer that user uniquely feels interface, then T_FEEL will be extended considerably, the time that sends of sound can large time delay greatly, this meaning TR_OFF can be significantly increased, such as increase to 1500ms from 250ms, correspondingly, according to equation (1), the average energy consumed now is reduced to the 250/1500=1/6 not adopting " sensation transfer " so that " open/close " mode of operation of bell ringing device, has the use value of reality.This man machine interface newly increased can be the luminescence of LED light, it is also possible to be the sound sending " dripping " etc. other actions can experienced for the sensory organ of people.
In order to technical scheme being described by concrete data, it is assumed that the shut-in time of bell ringing device is defined as:
TR_OFF=1500ms (4).
Obviously these data are only to facilitate illustrate, and are not the technical quantitative characteristic of a present invention.The lasting repeat its transmission time according to equation (2), (4) button device 100:
TT_ON>1500ms(5)
General doorbell, in order to there be the doorbell of more than 2 identical manufacturer production to exist near preventing, bell ringing device receives the button signal of neighbours and responds by mistake, and the content that button device sends at least contains the coding information of doorbell.Each to doorbell, there is different codings, each button device to doorbell and bell ringing device, there is identical coding.Coding has at least the content of several bit, so that neighbouring each coding to doorbell is different from, bell ringing device only receives the coding information identical with oneself, just reacts, and controls sound equipment, sends music.At least contain whole transmission signal called after " Y " signals of coding information, this is a packet, send required time=TTY, at least there is the transmission time of several bit, then according to common method, adopt above-mentioned " open/close " method, when button device 100 is launched by button, it is necessary within the time of TT_ON, is iteratively transmitted on " Y " signal continuously, such as Fig. 4 (a).The opening time of bell ringing device 200, TR_ON, it is necessary to more than the transmission time TTY of twice " Y " signal, guarantee receives complete one " Y " signal to bell ringing device.That is:
TR_ON≥2*TTY(6)
Because worst situation, being that button device 100 has just started to send " Y " signal, bell ringing device 200 is just opened, so bell ringing device 200 must wait this " Y " signal to distribute, just can receive next complete " Y " signal, therefore TR_ON 2*TTY, rather than TR_ON TTY.
If it is assumed that " Y " signal contains the information of N number of bit, baud rate=1/T that signal sends, then send " Y " signal required time TTY=N*T, according to equation (6)
The each opening time TR_ON of bell ringing device >=2*N*T (7)
As one reasonably it is assumed that suppose TR_ON=30ms, according to (1) and (4), energy consumption is reduced to 30/1500=1/50
According to measure above, the energy of the consumption of bell ringing device, it is greatly reduced.
Second aspect, improves the strategy received, and reduces TR_ON:
For bell ringing device 200, open now every time, be no longer receive search " Y " signal, but first receive whether search one secondary channel has signal, and ignore other all characteristics of signal.It is to say, be at this moment only concerned signal amplitude, ignoring the characteristics such as the phase place of signal, frequency deviation, more will not comprehend coded format, the at this moment behavior of receiver is same AM receiver such as.Result is it would appear that following two situation:
I (), as shown in Fig. 4 (c) B point, receives signal.So bell ringing device 200 is further continued for opening the TT_ON time, now just according to the form of button device signal transmitted, including modulation system, coded format, receives search " Y " signal, closes afterwards, restarts the next one " open/close " cycle.
(ii) as shown in Fig. 4 (d), it does not have receive signal.Directly close the bell ringing device 200 all parts except timer 2 02 so at once, restart the next one " open/close " cycle.
I the situation of (), is that button device 100 is just occurred by button.Every day, button 103 is pressed, and the chance sending signal is few, and almost all of is all the situation of (ii), and according to equation (3), the number of times that (ii) occurs is very big.So, for the present invention is described more simply, ignore the energy expenditure in (i) situation, only consider the situation of (ii).So the opening time TR_ON of bell ringing device 200 is exactly that search receives the time whether having signal on a secondary channel, according to whether above-mentioned receiver has behavior during signal on detection channel, the time receiving signal opened by receiver can less than the time of 1 bit.Present equation (7) develops into TR_ON T.Compared with the first step, TR_ON reduces 2N times, reduces 2N times according to equation (1) average power consumption.
Although by above-mentioned two steps, average energy consumption is greatly reduced, however, it is also possible to continue to be greatly lowered.
As previously described, different receivers, all there is this link of low noise High frequency amplification, the bias current of amplifier is all relatively.Single opinion receiver itself, is difficult to have further prominent energy consumption to improve.
3rd aspect, bell ringing device 200 selects the receiver 201 of suitable construction.The method adopting the present invention, it is possible to again by average energy consumption, then be greatly reduced.
A point as shown in Figure 11 (b), in two moment of B point, the receiver 201 of bell ringing device is affected by second timer 202 and controls, and power supply is unlocked, and receives the signal in search channel.Figure 11 (a) shows, in the A point moment, button device does not launch signal, and Figure 11 (c) shows, receiver 201 does not receive the signal on channel.In the B point moment, Figure 11 (a) shows that signal launched by transmitter 106, and the receiver 201 of Figure 11 (c) have received the signal on channel at C point.Obvious C point, relative to B point, has some time delays, the difference of C point and B point, is called the delayed time T_DELAY of bell ringing device or receiver.
Receiver general at present, is superhet, or Direct Conversion Receiver, all has frequency transformation structure.Frequency transformation, is by the local oscillation signal mixing of input signal and a very high purity, by the frequency translation of input signal to low-frequency range, then the process being amplified, filtering.Because highly purified requirement, local oscillation circuit has at least the frequency selection circuit of a very high q value, for instance, use crystal, quality factor are more than 10000.Local oscillator oscillating circuit, from powering on, gets off to vibrational stabilization, will experience a startup time, starts the time proportional to quality factor, and quality factor are more big, starts the time more long.Local oscillation circuit it may also be desirable to frequency dividing, phase-locked, the link such as be calibrated, this can cause that local oscillation circuit takes longer for just settling out.
It addition, because mixing, multiple frequency can be produced, must have narrow band filter or low frequency low pass filter after frequency mixer.So, after the wait local oscillation signal that powers on is stable, from the signal that antenna enters, can be predicted at bell ringing device receiver outfan.At this moment input signal is at least through a high pass filter, low pass filter, or also have the if bandpas filter of arrowband, these circuit are when completing the function of itself, signal is produced the side effect of time delay by capital, especially there is the narrowband intermediate frequency band filter of very high q value, signal is had longer delay time.
Because above-mentioned two reason, use the bell ringing device with frequency transformation receiver general at present, there is a relatively larger delayed time T_DELAY, substantially at more than 2ms.
The present invention is to provide: there is no frequency transformation, it does not have local oscillator, and there is no narrow band filter, there is no the receiver of low pass filter.
Being an embodiment of receiver provided by the invention as Fig. 5 shows, this is that receiver is amplified in a tuning.The signal that antenna 501 is come in, amplifies 502 through high-frequency low noise, and after high-frequency band pass filtering 503, then through nonlinear envelope detector 504, low frequency amplifies 505, just arrives output 506.When antenna 501 receives carrier signal, output produces higher voltage 506；When antenna does not receive carrier signal, output would is that relatively low voltage 506.Height according to 506 voltages, namely can determine whether that carrier wave is with or without, counterlogic 1,0.
Nonlinear envelope detector 504, it will the frequency of signal, phase information are lost.Thus the present embodiment, reception is only the amplitude information inputting signal.This embodiment inputs signal and does not carry out frequency transformation, thus
I () does not have local oscillator, after just powering on without aforementioned local oscillation circuit, vibration reaches the stably required time,
(ii) also without if bandpas filter or low frequency low pass filter, just without the time delay produced because of them.
Only high freguency bandpass filter 503, because its frequency is significantly larger than low-frequency filter, produced time delay is far below low-frequency filter.The delayed time T_DELAY of this embodiment, is far smaller than general frequency transformation receiver, substantially at below 10us.This circuit as the receiver 201 of bell ringing device 200, can be opened by the second timer 202 of bell ringing device 200/close.
It is the another embodiment of receiver as shown in Figure 6.It is traditional ultra-audio circuit, and superregenerative receiver is the receiver not having frequency transformation.Its agitator 602 is a simple LC agitator, and the Q-value in LC loop will not be significantly high, thus its Induction Peried is quite fast.When the frequency in LC loop, time consistent with the frequency of the signal that antenna 601 receives, the time required for starting of oscillation more accelerates.Because when not having external same frequency signal, agitator is to excite starting of oscillation by thermal noise, such as the A point of Fig. 7 (c)；When having external same frequency signal, then it is excited starting of oscillation by this extraneous signal, thus the time of starting of oscillation is shorter, such as the B point of Fig. 7 (c).Extinguish (quench) control circuit 603 and produce a switching signal, agitator 602 is made constantly to be in the state of closedown, starting of oscillation, envelope detection 604 just creates the frequency such as Fig. 7 (d) equal to pulsewidth modulation (pwm) signal extinguishing control signal frequency after being removed by higher frequency RF signals, link through low frequency low-pass filtering 605, low frequency signal is detected, as Fig. 7 (e) shows.Because there is no the link of frequency transformation, make the delayed time T_DELAY of circuit less, thus this circuit can as the receiver 201 of bell ringing device 200, the output signal of the second timer 202 of bell ringing device 200, it is used as to extinguish control signal, opens/close agitator 602.
Because foregoing circuit has the link of a low frequency low-pass filtering 605 so that the delayed time T_DELAY of this circuit is not reaching to minimum.
As shown in Figure 8, an alternative embodiment of the invention is to adopt the superregenerative receiver circuit improved, and it has minimum delayed time T_DELAY.
Circuit workflow such as Fig. 9 shows.
The output of enumerator 804 is stored by memorizer 805, the output of n times counting (such as 8 times) before, all it is stored in memorizer 805, averaging circuit 806, calculate the meansigma methods of this N number of count value, take the threshold value as comparator 807 of certain value under its meansigma methods, be placed on an input 809 of comparator 807.
Principle according to superregenerative receiver, the Induction Peried of agitator 802 depends on whether antenna 801 has external same frequency carrier signal, if it has, then Induction Peried accelerates.The circuit of Fig. 8, it is simply that directly measure the Induction Peried of agitator 802, judge currently whether have the carrier signal identical with frequency of oscillation to input from antenna 801 with this.
Now, intervalometer 810 exports high level as the signal enabling agitator 802 extinguishing control circuit 803, also starts enumerator 804 simultaneously and starts counting up, after the vibration of agitator 802 is set up, when the amplitude of vibration is sufficiently large, flip-flop number 804 is stopped counting, and triggers closedown agitator 802.
The value of this hour counter 804, the just Induction Peried of this agitator 802 corresponding.Also corresponding delayed time T_DELAY.
By the value of enumerator 804, deliver to the other end 808 of comparator 807, compare with threshold value 809.
When current count value 808 is less than threshold value 809, just judgement has carrier signal to input for channel, and present input data is logic 1, and otherwise adjudicating does not have CF signal for channel, and present input data is logical zero.
Then enumerator 804 currency sends into memorizer 805, and is cleared.
As Fig. 9 shows, T_DELAY=Induction Peried 901+ signal processing time 902 between the delayed of this circuit.Obviously, because the high-purity local oscillator required for not having frequency transformation needs to set up, the Induction Peried 901 of agitator 802 is very short；Also without intermediate frequency bandpass or low frequency low pass filter, the time of signal processing 902 is also extremely short
So the delayed time T_DELAY of this circuit is less, substantially can at below 10us.
If the frequency of agitator 802 is too high, (such as more than 30M), enumerator 804 has little time reaction, it is possible to agitator 802 followed by the envelope detector link that constitutes of diode and resistance capacitance, carry out flip-flop number 804 with the envelope of amplitude and close agitator 802.Obviously, as long as the sufficiently small resistance of the electric capacity in envelope detector is sufficiently large, hardly T_DELAY between delayed is impacted.
The superregenerative receiver of the present embodiment can be used as the receiver of bell ringing device, and the timer signal controlling bell ringing device unlatching/closedown when detecting and whether having signal on channel is also used as the extinguishing control circuit of superregenerative receiver.As Fig. 8 shows, control the intervalometer that bell ringing device is opened/closed, the enumerator that can be triggered, and the meansigma methods functional circuit etc. of n times count value, can be embedded in Micro-processor MCV 811, the software of MCU, hardware realize their function.Under Timer Controlling in MCU, in the period that bell ringing device is closed, in a dormant state, only intervalometer is in work for MCU.When bell ringing device is in the period of unlatching, MCU is timed device and wakes up, enters duty.
As previously described, when button device sends, continuing to repeat transmission signal in time TT_ON, bell ringing device 200 is controlled by timer 2 02, is operated in " open/close " pattern.First detect in opening time TR_ON during unlatching and whether channel has signal, according to channel detection result, have signal to continue to be held open the TT_ON time, such as Fig. 4 (c), to receive complete bag data；Bell ringing device is immediately closed off, as Fig. 4 (d) shows without signal.Shut-in time is TT_OFF, goes round and begins again, and constantly repeats.In every day, the situation of the overwhelming majority is that Fig. 4 (d) shows, channel does not have the situation of signal.
The opening time of bell ringing device is minimum should be equal to the delayed time, it may be assumed that
TR_ON≥T_DELAY.(8)
Above three embodiments, compared with existing general purpose receiver, have all significantly reduced T_DELAY, thus also just can reduce TR_ON significantly.According to equation (1), TR_ON is greatly decreased, and average energy consumption will be made to be greatly decreased.
By adopting the present invention, T_DELAY is reduced significantly, causes that the average current energy consumption of bell ringing device is substantially reduced.Thus simply can provide energy with solaode completely.
Bell ringing device also has a personal-machine interface, it is prevented that bell ringing device, when bell ringing device is installed and used first, is installed on excessively dark environment by user, for instance corner, behind the door.It can remind user, it is to avoid occurs that bell ringing device can not this situation of daylighting occur completely.As Figure 10 shows, when user pushes the power knob of bell ringing device to " unlatching " position, the magnitude of voltage of solaode 1001 is read in by A/D changer 1002, compare at comparator 1003, when magnitude of voltage is too low, it is judged that excessively dark for installation site, control LED flicker, prompting user: the position installed, light is too dark.
The inside of button device and bell ringing device, can there is a charging circuit boosted, because in the middle of one day, the amplitude of variation of light intensity is very big, when light is not strong, the voltage of solaode can decline, it is possible to adopts booster circuit, the output voltage of solaode is boosted so that rechargeable battery can be continued charging by solaode.
Claims (9)
1. a solar energy radio doorbell, has the button device sending signal and receives the bell ringing device of signal, it is characterised in that:
Described doorbell only uses solaode to be energy source, and when ambient light abundance, solaode provides operating current to doorbell and charges to rechargeable battery, when ambient light not enough even without time, rechargeable battery provides operating current to doorbell；
Described bell ringing device contains second timer (202), acoustics circuit, receiver, described bell ringing device is controlled by described second timer (202), it is operated in continuous print " open/close " pattern: when the opening timing time of second timer arrives, described bell ringing device is unlocked, etc. the signal that described button device to be received sends, the opening time of described bell ringing device is be more than or equal to the delayed time of bell ringing device；When, after the experience opening time, described bell ringing device is closed, receive capabilities stops, and second timer (202) starts timing, until after one shut-in time of experience, starting " open/a close " cycle again；
Described acoustics circuit is according to whether described bell ringing device receives the signal that described button device sends within the opening time, and starts and send sound or remain turned-off.
2. solar energy radio doorbell according to claim 1, it is characterised in that: described button device contains first timer (102), and described button device is controlled by described first timer (102), sends the shut-in time more than the described bell ringing device time of signal.
3. solar energy radio doorbell according to claim 1, it is characterised in that: first described bell ringing device detects whether have signal on channel when being controlled open by described second timer (202)；
If it did not, immediately enter closed mode, wait the unlatching next time of described second timer (202)；
If it has, continue to be held open, to receive the partial data that button device sends.
4. solar energy radio doorbell according to claim 1, it is characterised in that: described receiver is the receiver not having frequency transformation.
5. solar energy radio doorbell according to claim 1, it is characterised in that: described receiver is the receiver not having if bandpas filter, or does not have the receiver of low frequency low pass filter, or the receiver both not having.
6. solar energy radio doorbell according to claim 1, it is characterised in that: the receiver of described bell ringing device is superregenerative receiver.
7. solar energy radio doorbell according to claim 1, it is characterised in that: the receiver of described bell ringing device is the superregenerative receiver not having low pass filter.
8. solar energy radio doorbell according to claim 6, it is characterized in that: described superregenerative receiver contains intervalometer, envelope detector, enumerator, comparator, memorizer, averaging circuit, described intervalometer, envelope detector, enumerator, comparator, memorizer, averaging circuit, be embedded in Micro-processor MCV.
9. solar energy radio doorbell according to claim 1, it is characterised in that: described bell ringing device has a personal-machine interface, when the solaode energy obtained is too low, sends display or sound；Described button device has a personal-machine interface, when a user presses a button, sends display or sound.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210458793.2A CN103810799B (en) | 2012-11-14 | 2012-11-14 | Solar energy radio doorbell |
| PCT/CN2013/086989 WO2014075605A1 (en) | 2012-11-14 | 2013-11-12 | Low-power consumption solar-powered wireless door bell |
| CN201380023238.XA CN104285246A (en) | 2012-11-14 | 2013-11-12 | Low-power consumption solar-powered wireless door bell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210458793.2A CN103810799B (en) | 2012-11-14 | 2012-11-14 | Solar energy radio doorbell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103810799A CN103810799A (en) | 2014-05-21 |
| CN103810799B true CN103810799B (en) | 2016-06-29 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210458793.2A Expired - Fee Related CN103810799B (en) | 2012-11-14 | 2012-11-14 | Solar energy radio doorbell |
| CN201380023238.XA Pending CN104285246A (en) | 2012-11-14 | 2013-11-12 | Low-power consumption solar-powered wireless door bell |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380023238.XA Pending CN104285246A (en) | 2012-11-14 | 2013-11-12 | Low-power consumption solar-powered wireless door bell |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN103810799B (en) |
| WO (1) | WO2014075605A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108734906A (en) * | 2018-08-24 | 2018-11-02 | 深圳市无电通科技有限公司 | Self generating door bell device and control method |
| CN114374747B (en) * | 2022-01-11 | 2023-09-15 | 高拓讯达(北京)微电子股份有限公司 | Method and device for starting timer, electronic equipment and readable storage medium |
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| CN201289670Y (en) * | 2008-09-23 | 2009-08-12 | 王建宇 | Optical energy door bell device |
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| CN202120376U (en) * | 2011-07-12 | 2012-01-18 | 杨焕峥 | Solar door bell |
| CN202189417U (en) * | 2011-07-19 | 2012-04-11 | 慈溪市一栋电子有限公司 | Multifunctional wireless doorbell |
| CN203149741U (en) * | 2012-11-14 | 2013-08-21 | 杜若平 | Solar wireless doorbell |
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- 2012-11-14 CN CN201210458793.2A patent/CN103810799B/en not_active Expired - Fee Related
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2013
- 2013-11-12 WO PCT/CN2013/086989 patent/WO2014075605A1/en active Application Filing
- 2013-11-12 CN CN201380023238.XA patent/CN104285246A/en active Pending
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| US4151472A (en) * | 1977-08-22 | 1979-04-24 | Kokusai Electric Company, Ltd. | Selective calling circuit employing controlled power supply therefor |
| CN2650259Y (en) * | 2003-07-03 | 2004-10-20 | 广东伟雄集团有限公司 | Wireless door bell device |
| US7126455B2 (en) * | 2003-07-14 | 2006-10-24 | Ari Epstein | Method for controlling abusive use of doorbells |
| CN2674779Y (en) * | 2003-09-29 | 2005-01-26 | 林周明 | Electricity-saving two-line interphone bell for entrance |
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| CN102074083A (en) * | 2009-11-20 | 2011-05-25 | 无锡爱睿芯电子有限公司 | Wireless doorbell |
| CN201927130U (en) * | 2010-12-14 | 2011-08-10 | 华中师范大学 | Multifunctional solar wireless doorbell |
| CN202306726U (en) * | 2011-04-18 | 2012-07-04 | 深圳市龙侨华实业有限公司 | Low voltage indicating digital signal wireless doorbell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104285246A (en) | 2015-01-14 |
| CN103810799A (en) | 2014-05-21 |
| WO2014075605A1 (en) | 2014-05-22 |
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