Summary of the invention
In conventional wireless transmitter, there is a kind of wireless transmitter to come sensing surrounding environment lightness, and carries out the control of the ON/OFF of illuminating equipment based on sensing result with for example per 5 seconds predetermined time intervals once according to above-mentioned radio communication.Even environment is than under the bright situation of the predetermined luminance grade of the illuminating equipment of being opened by wireless transmitter itself around, the lighting apparatus that includes above-mentioned conventional wireless transmitter can determine mistakenly that periodic environment is to become clear.Then, even after closing illuminating equipment, lighting apparatus also keeps the value determined.Thus, it is inoperative that conventional illumination device makes illuminating equipment sometimes.
In order to specify the problems referred to above, consider following situation: it is low that wireless transmitter senses surrounding environment brightness ratio predetermined luminance grade, shown in the Reference numeral a among Fig. 6.
In this case, shown in the Reference numeral b of Fig. 6, when sensing the someone when occurring, wireless transmitter transmits control signal to receiver, this control signal comprises: as " secretly " signal of luminance signal, its indication surrounding environment lightness is lower than the predetermined luminance grade; And the opening time signal, the opening time of illuminating equipment, for example 10 seconds are opened in its indication.In response to this control signal, receiver is increased to high level with load output, thereby opens illuminating equipment, and activates timer internal, thereby begins the opening time is counted.Even receive " bright " signal (indication surrounding environment lightness is equal to or higher than the predetermined luminance grade) as luminance signal, receiver also continues to open illuminating equipment, has passed through by the indicated time span of opening time signal up to the opening time of being counted by timer internal.Afterwards, shown in Reference numeral c and d among Fig. 6, wireless transmitter is with predetermined time interval sensing surrounding environment lightness, and definite surrounding environment is brighter than the predetermined luminance grade of the illuminating equipment of being opened by wireless transmitter itself.
Then, shown in the Reference numeral e among Fig. 6, the opening time of being counted by timer internal in receiver has passed through the time span of being indicated by the opening time signal and has closed after the illuminating equipment, and before sense period environment lightness, when sensing the someone when occurring, wireless transmitter sends to receiver with " bright " signal together with the opening time signal, should " bright " signal be right after sense the someone occur before determined brightness value (that is lightness determined value).Therefore, based on this " bright " signal, receiver keeps the closed condition of illuminating equipment, and not with its unlatching.
As mentioned above, the problem of conventional illumination device is, even sensing that the someone occurs and therefore be necessary to open under the situation of illuminating equipment, next time before the sensing surrounding environment lightness, also can't open illuminating equipment at wireless transmitter.
In this case, the present invention has been proposed, to address the above problem.The purpose of this invention is to provide a kind of thermal radiation radio transmitter, it can prevent that illuminating equipment is inoperative under the bright situation of the predetermined luminance grade of determining the illuminating equipment that surrounding environment is opened than wireless transmitter itself mistakenly; And a kind of wireless receiver is provided, be used to receive the radio signal that sends from wireless transmitter, and the control illuminating equipment.
Realize above-mentioned purpose as follows according to thermal radiation radio transmitter of the present invention.Particularly, when personage's transducer senses the someone when occurring, wireless transmitter produces and exports the control signal that includes luminance signal and opening time signal, and in this control signal of output, activate the timer internal of wireless transmitter itself, thereby to counting by the opening time of opening time signal indication, wherein luminance signal has been provided by the surrounding environment lightness based on the sensing signal that provides from the lightness transducer, and the opening time signal has been indicated the opening time of opening illuminating equipment.Then, be right after after timer internal finishes counting, wireless transmitter obtains the surrounding environment lightness that is sensed by the lightness transducer.
In addition, realize above-mentioned purpose as follows according to wireless receiver of the present invention.Particularly, when receiving the control signal that comprises the opening time signal that the opening time of opening illuminating equipment is indicated, wireless receiver is controlled illuminating equipment based on the opening time signal with from the sensing signal that the lightness transducer provides, and when receiving control signal, activate the timer internal of wireless receiver itself, thereby to counting by the indicated opening time of opening time signal.Then, be right after after timer internal finishes counting, wireless receiver obtains the surrounding environment lightness that is sensed by the lightness transducer.
In addition, realize above-mentioned purpose as follows according to wireless receiver of the present invention.Particularly, wireless receiver is controlled illuminating equipment based on the opening time of being set by setup unit and from the sensing signal that the lightness transducer provides, and when receiving sensing signal, activate the timer internal of wireless receiver itself, thereby the opening time of setup unit setting is counted.Then, be right after after timer internal finishes counting, wireless receiver obtains the surrounding environment lightness that is sensed by the lightness transducer.
Embodiment
Below with reference to accompanying drawings, embodiments of the invention are described.
For example, as shown in Figure 1, present embodiment is the lighting apparatus that a plurality of illuminating equipments that are installed in places such as each room, corridor are controlled.In this lighting apparatus, each wireless transmitter 10 is with predetermined time interval sensing surrounding environment lightness.When having sensed the people when in sensing region, occurring, this lighting apparatus sends the control signal that comprises luminance signal and opening time signal by the radio communication of using infrared ray etc. to receiver 20, wherein luminance signal is indicated the surrounding environment lightness, the opening time that each illuminating equipment is opened in opening time signal indication.Like this, the relevant illuminating equipment of lighting apparatus control.
Notice that Fig. 1 shows the state that two wireless transmitter 10a and 10b are installed.Under this Installation Modes, for example, from living room and the dining room combined and kitchen (hereinafter to be referred as " LDK ") when going out by inlet, the wireless transmitter 10a that is installed in the place, corridor senses the someone and occurs as the people.Like this, wireless transmitter 10a exports control signal, to open the illuminating equipment of LDK, successfully opens the illuminating equipment of porch then.In addition, in Fig. 1, for example, when moving towards LDK as the people enters inlet outside the room after, the wireless transmitter 10b that is installed in the porch senses the someone and occurs.Like this, wireless transmitter 10b exports control signal, to open the illuminating equipment of inlet, successfully opens the illuminating equipment of LDK then.
As shown in Figure 2, wireless transmitter 10 comprises: power supply 11 provides the driving electric energy; Personage's transducer 12, whether the someone occurs sensing; Lightness transducer 13, the sensitive context lightness; Control unit 14 produces control signal; Switch 15 is operated based on the control signal that is produced by control unit 14; And infrarede emitting diode (LED) 16, the emission infrared ray.
For example, power supply 11 comprises battery.This power supply 11 provides the driving electric energy to above-mentioned wireless transmitter 10.
For example, personage's transducer 12 comprises thermoelectric element etc., and the heat ray of the human body institute radiation that occurs in sensing region by sensing comes sensing, and whether the someone occurs.When personage's transducer 12 senses the someone when occurring, provide consequent sensing signal to control unit 14.
For example, lightness transducer 13 comprises phototransistor etc., and the sensitive context lightness.The sensing signal of lightness transducer 13 is offered control unit 14.
For example, control unit 14 comprises microcomputer etc.Provide sensing signal from personage's transducer 12 to control unit 14.When personage's transducer 12 provides sensing signal, the control signal that comprises luminance signal and opening time signal is provided based on the sensing signal that provides from lightness transducer 13 control unit 14, wherein luminance signal is indicated the surrounding environment lightness, the opening time that each illuminating equipment is opened in opening time signal indication.Then, control unit 14 offers switch 15 with the control signal that produces.
In addition, though do not specifically illustrate, comprise the timer that the time is counted in the control unit 14.Control unit 14 activates this timer in the output control signal.This timer is counted opening the indicated opening time of time signal.
In addition, after the output control signal, control unit 14 produces prolongation signal as control signal based on the sensing signal that provides from personage's transducer 12 or the sensing signal that provides from personage's transducer 12 and lightness transducer 13 respectively, and this prolongation signal is used to prolong the opening time of each illuminating equipment.Particularly, if when lighting apparatus be when no matter how the environment lightness has the people to occur just continuing to open the type of illuminating equipment, 14 of control units produce the prolongation signal based on the sensing signal that provides from personage's transducer 12.In addition, when lighting apparatus is only (for example to be lower than the predetermined luminance grade in the environment lightness, at night etc.) and when just continuing to open the type of illuminating equipment when having the people to occur, control unit 14 produces based on the sensing signal that provides from personage's transducer 12 and lightness transducer 13 respectively and prolongs signal.Then, control unit 14 provides the prolongation that is produced signal to switch 15.
For example, switch 15 comprises the switch element of transistor and so on.Switch 15 is operated based on the control signal that is produced by control unit 14, to open infrared LED 16.
Infrared LED 16 is launched infrared ray after the driving of switch 15, the driving of switch 15 is based on the control signal that is produced by control unit 14.Like this, infrared LED 16 is exported this control signal as infrared ray.Each control signal of being launched by infrared LED 16 arrives receiver 20 by infrared communication.Like this, infrared LED 16 control illuminating equipments.
The timer internal that the lighting apparatus that comprises above-mentioned wireless transmitter 10 is right after the control unit 14 in relevant wireless transmitter 10 by lightness transducer 13 sensing surrounding environment lightness, thereby prevents that illuminating equipment is inoperative after finishing counting.
Particularly, sense after the surrounding environment lightness is lower than the predetermined luminance grade at lightness transducer 13, shown in the Reference numeral among Fig. 3, wireless transmitter 10 senses the someone by personage's transducer 12 and (shown in the Reference numeral b among Fig. 3) occur.At this moment, under the control of control unit 14, wireless transmitter 10 transmits control signal to receiver, and this control signal comprises: " secretly " signal, and as luminance signal, indication surrounding environment lightness is lower than the predetermined luminance grade; And the opening time signal, the opening time of relevant illuminating equipment, for example 10 seconds are opened in indication.In response to this control signal, receiver 20 is increased to high level with load output, opening illuminating equipment, and activates the timer internal of receiver 20 itself, the opening time is counted beginning.Indicated the surrounding environment lightness to be equal to or higher than " bright " signal of predetermined luminance grade even receive as luminance signal, receiver 20 also continues to open illuminating equipment, up to having passed through the indicated time span of opening time signal by the opening time of timer internal counting.
Simultaneously, shown in Reference numeral c and d among Fig. 3, under the control of control unit 14, wireless transmitter 10 is with for example per 5 seconds predetermined time intervals once, by lightness transducer 13 sensing surrounding environment lightness, and definite surrounding environment is brighter than the predetermined luminance grade of wireless transmitter 10 illuminating equipments of being opened own.
Then, shown in the Reference numeral e among Fig. 3, under the control of control unit 14, wireless transmitter 10 is right after after timer internal finishes counting, by lightness transducer 13 sensing surrounding environment lightness.In this case, wireless transmitter 10 senses the surrounding environment lightness by lightness transducer 13 and is lower than the predetermined luminance grade, this is that the illuminating equipment that itself opened by wireless transmitter 10 this moment extinguishes because current state is the state after timer internal finishes counting.Then, shown in the Reference numeral f among Fig. 3, when personage's transducer 12 senses the someone when occurring, wireless transmitter 10 transmits control signal to receiver 20 under the control of control unit 14, this control signal comprises: " secretly " signal is sensing the lightness determined value of someone before occurring as being right after; And the opening time signal, the opening time of illuminating equipment is opened in indication.In response to this control signal, receiver 20 is increased to high level with load output, opening illuminating equipment, and activates timer internal, the opening time is counted beginning.
As mentioned above, after the timer internal that is right after the control unit 14 in wireless transmitter 10 was finished counting, lighting apparatus obtained the surrounding environment lightness that is sensed by lightness transducer 13 by control unit 14.Like this, even be right after after timer internal finishes counting (for example, in thereafter one second), lighting apparatus also can be opened illuminating equipment definitely sensing by personage's transducer 12 when the someone occurs.
Here, lighting apparatus may cause the error between the timer internal of the timer internal of wireless transmitter 10 and receiver 20.Therefore, because this error, following situation can occur in lighting apparatus: even according to the timer internal of wireless transmitter 10, to must closing time of illuminating equipment, illuminating equipment still is held open according to the timer internal of receiver 20.In this case, in lighting apparatus following situation may appear: when illuminating equipment is held open, lighting apparatus passes through lightness transducer 13 sensing surrounding environment lightness, and exports " bright " signal mistakenly as luminance signal, so can't correctly control illuminating equipment.
Therefore, wireless transmitter 10 provides the scheduled time (for example, being right after in after the timer internal of control unit 14 finishes counting one second) conduct to be used to absorb the error soak time of above-mentioned error.Like this, wish to sense within this error soak time under the situation that the someone occurs, wireless transmitter 10 keeps standbies and does not transmit control signal, and transmits control signal after lightness transducer 13 sensing lightness.
Particularly, sense the surrounding environment lightness at lightness transducer 13 and be lower than predetermined luminance grade (shown in the Reference numeral a among Fig. 4) afterwards, wireless transmitter 10 senses the someone by personage's transducer 12 and occurs, shown in the Reference numeral b among Fig. 4.Then, under the control of control unit 14, wireless transmitter 10 transmits control signal to receiver, and this control signal comprises: " secretly " signal, and as luminance signal, indication surrounding environment lightness is lower than the predetermined luminance grade; And the opening time signal, the opening time of relevant illuminating equipment, for example 10 seconds are opened in indication.In response to this control signal, receiver 20 is increased to high level with load output, opening illuminating equipment, and activates the timer internal of receiver 20 itself, the opening time is counted beginning.Indicated the surrounding environment lightness to be equal to or higher than " bright " signal of predetermined luminance grade even receive as luminance signal, receiver 20 also continues to open illuminating equipment, up to having passed through the indicated time span of opening time signal by the opening time of timer internal counting.
Simultaneously, shown in Reference numeral c and d among Fig. 4, under the control of control unit 14, wireless transmitter 10 is with for example per 5 seconds predetermined time intervals once, by lightness transducer 13 sensing surrounding environment lightness, and definite surrounding environment is brighter than the predetermined luminance grade of wireless transmitter 10 illuminating equipments of being opened own.
Then, be right after after timer internal finishes counting, wireless transmitter 10 is not by lightness transducer 13 sensing surrounding environment lightness, but shown in the Reference numeral e among Fig. 4, under the control of controller 14, passed through after a second as the error soak time, just by lightness transducer 13 sensing surrounding environment lightness.In this case, wireless transmitter 10 senses the surrounding environment lightness by lightness transducer 13 and is lower than the predetermined luminance grade, this is that the illuminating equipment that opened by wireless transmitter 10 this moment extinguishes because current state is the state after timer internal finishes counting.Then, within the error soak time, when personage's transducer 12 senses the someone when occurring, shown in the Reference numeral f among Fig. 4, wireless transmitter 10 transmits control signal to receiver 20 under the control of control unit 14, this control signal comprises: " secretly " signal, as the lightness determined value of timing place shown in the Reference numeral e among Fig. 4; And the opening time signal, the opening time of illuminating equipment is opened in indication.In response to this control signal, receiver 20 is increased to load output high level once more, opening illuminating equipment, and activates timer internal, the opening time is counted beginning.
As mentioned above, the timer internal of the control unit 14 of lighting apparatus in wireless transmitter 10 finishes to provide the predictive error soak time after the counting.Then, sensing within this error soak time under the situation that the someone occurs, lighting apparatus keeps standby and does not transmit control signal, and then after obtaining the surrounding environment lightness that is sensed by lightness transducer 13, transmits control signal.Like this, even occur under the situation of error between the timer internal of the timer internal of wireless transmitter 10 and receiver 20, lighting apparatus also can suitably be controlled illuminating equipment.
Note, under the situation of this method of employing, occur about one second time lag at most, and lighting apparatus can cause user's sense of discomfort.
In this case, when the timer internal of wireless transmitter 10 begins to carry out counting according to " secretly " signal as luminance signal, and when personage's transducer 12 senses the someone when occurring within the error soak time, wireless transmitter 10 can send luminance signal to receiver 20, in this luminance signal, the lightness determined value is rewritten as " secretly ".
Particularly, sense the surrounding environment lightness when being lower than the predetermined luminance grade at lightness transducer 13, shown in the Reference numeral a among Fig. 5, wireless transmitter 10 senses the someone by personage's transducer 12 and occurs, shown in the Reference numeral b among Fig. 4.Then, under the control of control unit 14, wireless transmitter 10 transmits control signal to receiver, and this control signal comprises: " secretly " signal, and as luminance signal, indication surrounding environment lightness is lower than the predetermined luminance grade; And the opening time signal, the opening time of relevant illuminating equipment, for example 10 seconds are opened in indication.In response to this control signal, receiver 20 is increased to high level with load output, opening illuminating equipment, and activates the timer internal of receiver 20 itself, the opening time is counted beginning.Indicated the surrounding environment lightness to be equal to or higher than " bright " signal of predetermined luminance grade even receive as luminance signal, receiver 20 also continues to open illuminating equipment, up to having passed through the indicated time span of opening time signal by the opening time of timer internal counting.
Simultaneously, shown in Reference numeral c and d among Fig. 5, under the control of control unit 14, wireless transmitter 10 passes through lightness transducer 13 sensing surrounding environment lightness with for example per 5 seconds predetermined time intervals once, and definite surrounding environment is brighter than the predetermined luminance grade of wireless transmitter 10 illuminating equipments of being opened own.
Then, timer internal end counting when wireless transmitter 10, and personage's transducer 12 senses the someone when occurring within the error soak time, shown in the Reference numeral e among Fig. 5, wireless transmitter 10 transmits control signal to receiver 20 under the control of control unit 14, this control signal comprises: luminance signal, wherein the lightness determined value is forced to be rewritten as " secretly "; And the opening time signal, the opening time of illuminating equipment is opened in indication.In response to this control signal, receiver 20 is increased to load output high level once more, opening illuminating equipment, and activates timer internal, the opening time is counted beginning.
As mentioned above, sensing within this error soak time under the situation that the someone occurs, lighting apparatus sends luminance signals to receiver 20, and the lightness determined value is rewritten as " secretly " in this luminance signal.Like this, even after closing illuminating equipment automatically, lighting apparatus also can almost opened illuminating equipment under the not free state that lags behind immediately, and can strengthen user's the sense of security.
Notice that in the time needn't changing the place of sensing lightness neatly, lighting apparatus can provide function and lightness transducer 13 similar lightness transducer in receiver 20 sides rather than in wireless transmitter 10 sides.Particularly, receiver 20 receives control signal from wireless transmitter 10, and this control signal comprises the opening time signal, is used to indicate the opening time of opening illuminating equipment.Then, under the control of the control unit (not shown) in receiver 20, receiver 20 is controlled illuminating equipment based on the opening time signal with from the sensing signal that the lightness transducer provides, and when receiving control signal, activate timer internal, thereby count opening the indicated opening time of time signal.Then, under the control of control unit, receiver 20 is right after after timer internal finishes counting and obtains the surrounding environment lightness that is sensed by the lightness transducer.
State in the use under the situation of receiver 20, lighting apparatus only need send the opening time signal by wireless transmitter 10, thus, needn't carry out above-mentioned complicated operations.
In addition, in receiver 20 sides, together with the lightness transducer, lighting apparatus can provide hand switch etc., and this hand switch is as the setup unit that is used for the opening time is set.Particularly, under the control of control unit (not shown), receiver 20 is controlled illuminating equipment based on the opening time that is set by hand switch with from the sensing signal that the lightness transducer provides, and when receiving sensing signal, activate timer internal, thereby the opening time that hand switch sets is counted.Then, under the control of control unit, receiver 20 is right after the surrounding environment lightness of obtaining by lightness transducer sensing after timer internal finishes counting.
State in the use under the situation of receiver 20, needn't by wireless transmitter 10 send luminance signals and opening time signal the two, therefore, lighting apparatus can be simplified signal, and can reduce power consumption.In addition, even install under the situation of wireless transmitter 10 in a large amount of places, lighting apparatus also can significantly reduce following situation: these signals overlap each other, and receiver 20 can't be discerned coherent signal.
In addition, in receiver 20 sides, be provided for setting together with the lightness transducer under the situation of open-interval hand switch etc., lighting apparatus can be set respectively: the opening time under the situation of opening illuminating equipment based on the control signal that sends from wireless transmitter 10; And based on the opening time that sets by hand switch and the sensing signal that provides from the lightness transducer and open opening time under the situation of illuminating equipment.Like this, lighting apparatus can be set respectively by the opening time of wireless transmitter 10 temporary transient unlatching illuminating equipments and the opening time of temporarily opening illuminating equipment by receiver 20 (hand switch), and can strengthen availability.
As above specifically described, in lighting apparatus according to the embodiment of the invention, when personage's transducer 12 senses the someone when occurring, wireless transmitter 10 produces and exports control signal under the control of control unit 14, this control signal comprises: luminance signal, and indication is based on the surrounding environment lightness of the sensing signal that provides from lightness transducer 13; And the opening time signal, the opening time of illuminating equipment is opened in indication.In addition, in the output control signal, wireless transmitter 10 activates its timer internal, and counts opening the indicated opening time of time signal.Then, under the control of control unit 14, wireless transmitter 10 is right after after timer internal finishes counting and obtains the surrounding environment lightness that is sensed by lightness transducer 13.
Like this,, sense the someone when occurring, also can open illuminating equipment definitely even be right after after the timer internal of wireless transmitter 10 finishes counting personage's transducer 12 according to this lighting apparatus.
In addition, in wireless transmitter 10, when personage's transducer 12 senses the someone when occurring in the scheduled time after the timer internal of control unit 14 finishes counting, control unit 14 can keep standby and not export control signal, and can export control signal after obtaining the surrounding environment lightness that is sensed by lightness transducer 13.Like this, according to this lighting apparatus,, also can suitably control illuminating equipment even between the timer internal of the timer internal of wireless transmitter 10 and receiver 20, occur under the situation of error.
In addition, in wireless transmitter 10, when personage's transducer 12 senses the someone when occurring in the scheduled time after the timer internal of control unit 14 finishes counting, control unit 14 is exported luminance signals, in this luminance signal, the lightness determined value is forced to rewrite.Like this, even after illuminating equipment cuts out automatically, wireless transmitter 10 also can almost opened illuminating equipment under the not free state that lags behind immediately, and can strengthen user's the sense of security.
In addition, according to this lighting apparatus, can provide the lightness transducer in receiver 20 sides.In this case, when receiving the control signal that comprises the opening time signal that the opening time of opening illuminating equipment is indicated from wireless transmitter 10, receiver 20 is controlled illuminating equipment based on the opening time signal with from the sensing signal that the lightness transducer provides.When receiving control signal, receiver 20 activates timer internal, thereby counts opening the indicated opening time of time signal.Then, receiver 20 is right after after timer internal finishes counting and obtains the surrounding environment lightness that is sensed by the lightness transducer.
Like this, according to this lighting apparatus, 10 needs of wireless transmitter send the opening time signal, therefore needn't carry out complicated operations.
In addition, in receiver 20 sides, this lighting apparatus not only can provide the lightness transducer, and for example setup unit of hand switch and so on can also be provided, and this setup unit is used to set the opening time of opening illuminating equipment.In this case, receiver 20 is controlled illuminating equipment based on the opening time that is set by setup unit with from the sensing signal that the lightness transducer provides, and when receiving sensing signal, activate timer internal, thereby the opening time that is set by setup unit is counted.Then, receiver 20 is right after the surrounding environment lightness of obtaining by lightness transducer sensing after timer internal finishes counting.
Like this, needn't by wireless transmitter 10 send luminance signals and opening time signal the two, therefore, lighting apparatus can be simplified signal, and can reduce power consumption.In addition, even install under the situation of wireless transmitter 10 in a large amount of places, lighting apparatus also can significantly reduce following situation: these signals overlap each other, and receiver 20 can't be discerned coherent signal.
In addition, receiver 20 can be set respectively: the opening time under the situation of opening illuminating equipment based on the control signal that sends from wireless transmitter 10; And based on the opening time that sets by setup unit and the sensing signal that provides from the lightness transducer and open opening time under the situation of illuminating equipment.Like this, receiver 20 can strengthen availability significantly.
Notice that the foregoing description is an example of the present invention.Therefore, the present invention is not limited to the foregoing description, even adopt other embodiment except the foregoing description, under the prerequisite that does not deviate from according to technological thought of the present invention, can carry out multiple modification to aspects such as designs in this scope.