CN105701938A - Object and direction detecting system with multiple diode light emitting members and detecting method thereof - Google Patents
Object and direction detecting system with multiple diode light emitting members and detecting method thereof Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
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Abstract
The invention discloses an object and direction detecting system with multiple diode light emitting members. The object and direction detecting system comprises a disconnection state monitoring circuit which is used for monitoring signals S3 generated by diodes under the disconnection state due to the principle of photo-induced electricity; and an analysis circuit which calls pre-stored aggregate signals S2 to be fuzzily matched with the signals S3. The aggregate signals S2 comprise an aggregate signal S<existence> and an aggregate signal S<non-existence>. The aggregate signal S<existence> is formed by multiple calibration signals S<existence> generated by the diodes under the disconnection state due to the principle of photo-induced electricity when there are objects on a diode light emitting member photo-induced electric induction interface. The aggregate signal S<non-existence> is formed by multiple calibration signals S<non-existence> generated by the diodes under the disconnection state due to the principle of photo-induced electricity when there is no object on the diode light emitting member photo-induced electric induction interface. The aggregate signals S2 are adopted to be fuzzily matched with the signals S3.
Description
Technical field
The present invention relates to LED lighting body, specifically the survey thing direction-finding system of a kind of multiple diode luminous body and detection method thereof。
Background technology
Intrusion detector is the fore device in intrusion alarm system, it is made up of various detectors, it it is the haptic of intrusion alarm system, be equivalent to the eyes of people, nose, ear, skin etc., the change of the various physical quantitys such as the temperature at perception scene, humidity, abnormal smells from the patient, energy, and it is converted to according to certain rule the signal of telecommunication being suitable to transmission。Or due sensor difference different by the detection principle of detector is divided: can be divided into radar type microwave detector, microwave wall detector, active infrared formula detector, passive infrared formula detector, switching regulator detector, ultrasonic detector, voice activated detector, vibration detector etc.。
Development along with diode light-source, present market, office building, the regions such as the corridor of family are substantially the diode of employing as light source, at present in field of detecting, but without adopting diode light-source as detection device, its intrusion detector is all arrange independent detection device on the basis of object to be detected, this adds the cost of separate cabling undoubtedly, such as when the family being not provided with intrusion system arranges invasion, assume to adopt Infrared Detectors, then need to arrange infrared detection head on doorway, then will by infrared detection head and the system of analysis, alarm device connects, it is finally assembling to detection system, these all need rewiring, therefore life and the cost of client can greatly be affected。
Summary of the invention
It is an object of the invention to provide the survey thing direction-finding system of multiple diode luminous body and detection method thereof, the realization for object detector provides a kind of new implementation, and can realize the judgement of movement direction of object。
The present invention is achieved through the following technical solutions:
The survey thing direction-finding system of multiple diode luminous body, surveys thing device including direction finding analytical equipment and at least 2, and each survey thing device includes diode drive circuit, off state observation circuit, analysis circuit, LED lighting body；
Diode drive circuit: for exporting the driving signal S1 of height alternating signal, diode current flow under high level state, diode turns off under low level；
Off state observation circuit: under monitor diode off state due to light send a telegraph principle produce signal S3；
Analysis circuit: transfer aggregate signal S2 and the signal S3 prestored and carry out fuzzy matching；
Aggregate signal S2 includes aggregate signal SThere is thingWith aggregate signal SEmpty；
Aggregate signal SThere is thing: there is object when the photic electric induction interface of LED lighting body, owing to light sends a telegraph multiple demarcation signal S that principle produces under diode off stateThere is thing, by multiple demarcation signal SThere is thingSet forms aggregate signal SThere is thing
Aggregate signal SEmpty: there is no object when the photic electric induction interface of LED lighting body, owing to light sends a telegraph multiple demarcation signal S that principle produces under diode off stateEmpty, by multiple demarcation signal SEmptySet forms aggregate signal SEmpty；
Adopt aggregate signal S2 and signal S3 to carry out fuzzy matching, when signal S3 fuzzy matching to aggregate signal SThere is thingIn certain value immediate time, then there is thing information at the photic electric induction interface of output diode luminous body, signal S3 fuzzy matching to aggregate signal SEmptyIn certain value immediate time, then the photic electric induction interface of output diode luminous bodyEmptyInformation；
Direction finding analytical equipment: record moment when there is thing information at the photic electric induction interface of LED lighting body of each analysis circuit output, all moment are ranked up by mode from small to large, then it is assumed that object moves from the LED lighting body corresponding to the little moment to the direction of the LED lighting body corresponding to the big moment。
The design principle of the present invention is: the principle that LED lighting body is converted to luminous energy mainly by electric energy realizes illumination, photoelectric characteristic due to diode, diode also can produce electric current under illumination condition, and therefore, the present invention mainly utilizes the light of diode to send a telegraph principle。Owing to the power supply of LED lighting body is generally adopted the height alternating signal of hyperfrequency；Therefore, the present invention can pass through the power supply gathering LED lighting body signal under low level zone state, namely owing to light sends a telegraph the signal S3 that principle produces under monitor diode off state, when diode off state, under illumination condition, diode can produce the signal of telecommunication, and the general signal gathered is to drive, with LED lighting body, the signal of telecommunication that power supply is contrary, after obtaining signal S3, owing to aggregate signal S2 includes aggregate signal SThere is thingWith aggregate signal SEmpty, due to aggregate signal SThere is thingIt is when there being object to be positioned at photic electric induction interface (lower section) of LED lighting body, owing to light sends a telegraph multiple demarcation signal S that principle produces under diode off stateThere is thing, therefore aggregate signal SThere is thingRepresent the photic electric induction interface of LED lighting body and there is object；Due to aggregate signal SEmptyIt is when there being object to be not at the photic electric induction interface of LED lighting body, owing to light sends a telegraph multiple demarcation signal S that principle produces under diode off stateEmpty, therefore aggregate signal SEmptyRepresent the photic electric induction interface of LED lighting body and be absent from object；At this moment, the above-mentioned aggregate signal S2 for contrasting is prestored in advance due to us, therefore, we have only to the contrast aggregate signal S2 and signal S3 of obfuscation, find out in aggregate signal S2 immediate signal compared with signal S3, can by judging the state of this immediate signal, final analysis goes out whether the photic electric induction interface of signal S3 correspondence LED lighting body has object。Such as, it will be assumed that aggregate signal SThere is thingIt is the alternating signal of 0.5V for high level, aggregate signal SEmptyBe the alternating signal of 1V for high level, and the signal S3 that we record is high level be the alternating signal of 0.7V, signal S3 respectively with aggregate signal SThere is thingWith aggregate signal SEmptyAfter relatively, aggregate signal SThere is thingFor immediate signal, accordingly, because aggregate signal SThere is thingRepresenting the photic electric induction interface of LED lighting body and have object, we pass through aggregate signal SThere is thingJudge that signal S3 represents current light emitting diode light and sends a telegraph sensing interface and there is object。
When object having been detected, we also need to the direction of motion of judgment object, the present invention utilizes at least direction finding analytical equipment and at least 2 survey thing device composition direction-finding systems, survey thing device and complete the judgement whether having object, the moment surveying thing result of each survey thing device is recorded by direction finding analytical equipment, then arrange each survey thing device and survey the moment of thing result, after sequence from small to large, general record at first object survey thing device time be engraved in before, and finally record object survey thing device time be engraved in after, thus can draw the moving direction of object。
Preferably, the plurality of demarcation signal SThere is thingIncluding different characteristic object by under LED lighting body and diode off state due to light send a telegraph principle produce multiple demarcation signals。
By signal S3 and multiple demarcation signal SThere is thingCarry out fuzzy matching, match the demarcation signal S closest to signal S3There is thing, export this demarcation signal SThere is thingThe feature of corresponding object。
Through above-mentioned technology contents, with aggregate signal S2 relative analysis, we can not only by going out whether the photic electric induction interface of current LED lighting body exists object by signal S3, we can also pass through different objects correspondence difference demarcation signal, drawn with S3 contrast by demarcation signal, the photic electric induction interface of current LED lighting body is to there is what object, such as, we are previously stored with: the first demarcation signal that people produces when the photic electric induction interface of LED lighting body, the second demarcation signal that car produces when the photic electric induction interface of LED lighting body, assume that the first demarcation signal be high level is the alternating signal of 0.7V, second demarcation signal is high level is the alternating signal of 0.8V, and signal S3 is high level is the alternating signal of 0.7V, then may determine that the first demarcation signal is the signal closest to signal S3, then can analyze, when obtaining signal S3, that stand in the photic electric induction interface of Light-Emitting Diode matrix is people。
Preferably, the plurality of demarcation signal SEmptyIncluding varying environment feature and LED lighting body photic electric induction interface without under object, diode off state owing to light sends a telegraph multiple demarcation signals that principle produces。
By signal S3 and multiple demarcation signal SEmptyCarry out fuzzy matching, match the demarcation signal S closest to signal S3Empty, export this demarcation signal SThere is thingThe feature of corresponding environment。
Through above-mentioned technology contents, with aggregate signal S2 relative analysis, we can not only by going out whether the photic electric induction interface of current LED lighting body exists object by signal S3, when being arranged on the photic electric induction interface of LED lighting body without object, we can also pass through varying environment feature correspondence difference demarcation signal, drawn with S3 contrast by demarcation signal, which kind of environmental characteristic current LED lighting body is in, such as, we are previously stored with: the first demarcation signal produced during the photic electric induction interface of 12 noon LED lighting body, the second demarcation signal produced during the photic electric induction interface of 12 LED lighting bodies at night, assume that the first demarcation signal be high level is the alternating signal of 1.2V, second demarcation signal is high level is the alternating signal of 0.2V, and signal S3 is high level is the alternating signal of 1.1V, then may determine that the first demarcation signal is the signal closest to signal S3, then can analyze, when obtaining signal S3, current time is about 12 noon, Fuzzy processing, think that current time is 12 points。
Based on the detection method surveying thing direction-finding system of described multiple diode luminous body, comprise the following steps:
Initialization step: the object of various different characteristics is arranged on the photic electric induction interface of LED lighting body, obtains under diode off state owing to light sends a telegraph multiple demarcation signal S that principle producesThere is thing, the corresponding demarcation signal S of each type objectsThere is thing；When the photic electric induction interface of LED lighting body is not provided with object and in varying environment feature situation, obtain under diode off state owing to light sends a telegraph multiple demarcation signal S that principle producesEmpty, the corresponding demarcation signal S of each class environmental characteristicEmpty；By all demarcation signal SThere is thingFlock together formation aggregate signal SThere is thing, by all demarcation signal SEmptyFlock together formation aggregate signal SEmpty, by aggregate signal SThere is thingWith aggregate signal SEmptyFlock together formation aggregate signal S2；
Off state monitoring step: owing to light sends a telegraph the signal S3 that principle produces under detection diode off state；
Analyze and judge step: obfuscation comparison signal S3 and aggregate signal S2, choose signal immediate with signal S3 in aggregate signal S2, analyze the state closest to signal, it is judged that whether the photic electric induction interface of LED lighting body has object；
Walking direction step: when signal S3 fuzzy matching to aggregate signal SThere is thingIn certain value immediate time, now, there is thing information at the photic electric induction interface of analysis circuit output diode luminous body of each survey thing device, direction finding analytical equipment records moment when there is thing information at the photic electric induction interface of LED lighting body of each analysis circuit output, and all moment are ranked up by mode from small to large, then it is assumed that object moves from the LED lighting body corresponding to the little moment to the direction of the LED lighting body corresponding to the big moment。
On the basis of above-mentioned detection method, it is judged that when whether the photic electric induction interface of LED lighting body has object, when there being object, it is judged that the feature of object；When without object, it is judged that external environment condition feature。
The present invention compared with prior art, has such advantages as and beneficial effect: without being separately provided wiring, utilizes light emitting diode can realize different objects, the detection of different external environment conditions。
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention。
Fig. 1 is the structured flowchart that the present invention surveys thing device。
Fig. 2 is signal fusing schematic diagram。
Fig. 3 is 2 schematic diagrams surveying thing device and direction finding analytical equipment acquisition direction finding result。
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment and the explanation thereof of the present invention are only used for explaining the present invention, not as a limitation of the invention。
Embodiment 1:
As depicted in figs. 1 and 2。
The survey thing direction-finding system of multiple diode luminous body, surveys thing device including direction finding analytical equipment and at least 2, and each survey thing device includes diode drive circuit, off state observation circuit, analysis circuit, LED lighting body；
Diode drive circuit: for exporting the driving signal S1 of height alternating signal, diode current flow under high level state, diode turns off under low level；
Off state observation circuit: under monitor diode off state due to light send a telegraph principle produce signal S3；
Analysis circuit: transfer aggregate signal S2 and the signal S3 prestored and carry out fuzzy matching；
Aggregate signal S2 includes aggregate signal SThere is thingWith aggregate signal SEmpty；
Aggregate signal SThere is thing: there is object when the photic electric induction interface of LED lighting body, owing to light sends a telegraph multiple demarcation signal S that principle produces under diode off stateThere is thing；
Aggregate signal SEmpty: there is no object when the photic electric induction interface of LED lighting body, owing to light sends a telegraph multiple demarcation signal S that principle produces under diode off stateEmpty；
Adopt aggregate signal S2 and signal S3 to carry out fuzzy matching, when signal S3 fuzzy matching to aggregate signal SThere is thingIn certain value immediate time, then there is thing information at the photic electric induction interface of output diode luminous body, signal S3 fuzzy matching to aggregate signal SEmptyIn certain value immediate time, then output diode luminous body photic electric induction interface empty information；
Direction finding analytical equipment: record moment when there is thing information at the photic electric induction interface of LED lighting body of each analysis circuit output, all moment are ranked up by mode from small to large, then it is assumed that object moves from the LED lighting body corresponding to the little moment to the direction of the LED lighting body corresponding to the big moment。
The design principle of the present invention is: the principle that LED lighting body is converted to luminous energy mainly by electric energy realizes illumination, photoelectric characteristic due to diode, diode also can produce electric current under illumination condition, and therefore, the present invention mainly utilizes the light of diode to send a telegraph principle。Owing to the power supply of LED lighting body is generally adopted the height alternating signal of hyperfrequency；Therefore, the present invention can pass through the power supply gathering LED lighting body signal under low level zone state, namely owing to light sends a telegraph the signal S3 that principle produces under monitor diode off state, when diode off state, under illumination condition, diode can produce the signal of telecommunication, and the general signal gathered is to drive, with LED lighting body, the signal of telecommunication that power supply is contrary, after obtaining signal S3, owing to aggregate signal S2 includes aggregate signal SThere is thingWith aggregate signal SEmpty, due to aggregate signal SThere is thingIt is when there being object to be positioned at the photic electric induction interface of LED lighting body, owing to light sends a telegraph multiple demarcation signal S that principle produces under diode off stateThere is thing, therefore aggregate signal SThere is thingRepresent the photic electric induction interface of LED lighting body and there is object；Due to aggregate signal SEmptyIt is when there being object to be not at the photic electric induction interface of LED lighting body, owing to light sends a telegraph multiple demarcation signal S that principle produces under diode off stateEmpty, therefore aggregate signal SEmptyRepresent the photic electric induction interface of LED lighting body and be absent from object；At this moment, the above-mentioned aggregate signal S2 for contrasting is prestored in advance due to us, therefore, we have only to the contrast aggregate signal S2 and signal S3 of obfuscation, find out in aggregate signal S2 immediate signal compared with signal S3, can by judging the state of this immediate signal, final analysis goes out whether the photic electric induction interface of signal S3 correspondence LED lighting body has object。Such as, it will be assumed that aggregate signal SThere is thingIt is the alternating signal of 0.5V for high level, aggregate signal SEmptyBe the alternating signal of 1V for high level, and the signal S3 that we record is high level be the alternating signal of 0.7V, signal S3 respectively with aggregate signal SThere is thingWith aggregate signal SEmptyAfter relatively, aggregate signal SThere is thingFor immediate signal, accordingly, because aggregate signal SThere is thingRepresenting the photic electric induction interface of LED lighting body and have object, we pass through aggregate signal SThere is thingJudge that signal S3 represents current light emitting diode light and sends a telegraph sensing interface and there is object。
When object having been detected, we also need to the direction of motion of judgment object, the present invention utilizes at least direction finding analytical equipment and at least 2 survey thing device composition direction-finding systems, survey thing device and complete the judgement whether having object, the moment surveying thing result of each survey thing device is recorded by direction finding analytical equipment, then arrange each survey thing device and survey the moment of thing result, after sequence from small to large, general record at first object survey thing device time be engraved in before, and finally record object survey thing device time be engraved in after, thus can draw the moving direction of object。
Preferably, the plurality of demarcation signal SThere is thingIncluding different characteristic object by under LED lighting body and diode off state due to light send a telegraph principle produce multiple demarcation signals。
By signal S3 and multiple demarcation signal SThere is thingCarry out fuzzy matching, match the demarcation signal S closest to signal S3There is thing, export this demarcation signal SThere is thingThe feature of corresponding object。
Through above-mentioned technology contents, with aggregate signal S2 relative analysis, we can not only by going out whether the photic electric induction interface of current LED lighting body exists object by signal S3, we can also pass through different objects correspondence difference demarcation signal, drawn with S3 contrast by demarcation signal, the photic electric induction interface of current LED lighting body is to there is what object, such as, we are previously stored with: the first demarcation signal that people produces when the photic electric induction interface of LED lighting body, the second demarcation signal that car produces when the photic electric induction interface of LED lighting body, assume that the first demarcation signal be high level is the alternating signal of 0.7V, second demarcation signal is high level is the alternating signal of 0.8V, and signal S3 is high level is the alternating signal of 0.7V, then may determine that the first demarcation signal is the signal closest to signal S3, then can analyze, when obtaining signal S3, that stand in the photic electric induction interface of Light-Emitting Diode matrix is people。
Preferably, the plurality of demarcation signal SEmptyIncluding varying environment feature and LED lighting body photic electric induction interface without under object, diode off state owing to light sends a telegraph multiple demarcation signals that principle produces。
By signal S3 and multiple demarcation signal SEmptyCarry out fuzzy matching, match the demarcation signal S closest to signal S3Empty, export this demarcation signal SThere is thingThe feature of corresponding environment。
Through above-mentioned technology contents, with aggregate signal S2 relative analysis, we can not only by going out whether the photic electric induction interface of current LED lighting body exists object by signal S3, when being arranged on the photic electric induction interface of LED lighting body without object, we can also pass through varying environment feature correspondence difference demarcation signal, drawn with S3 contrast by demarcation signal, which kind of environmental characteristic current LED lighting body is in, such as Fig. 2, such as, we are previously stored with: the first demarcation signal produced during the photic electric induction interface of 12 noon LED lighting body, the second demarcation signal produced during the photic electric induction interface of 12 LED lighting bodies at night, assume that the first demarcation signal be high level is the alternating signal of 1.2V, second demarcation signal is high level is the alternating signal of 0.2V, and signal S3 is high level is the alternating signal of 1.1V, then may determine that the first demarcation signal is the signal closest to signal S3, then can analyze, when obtaining signal S3, current time is about 12 noon, Fuzzy processing, think that current time is 12 points。
The present invention can also judge external weather conditions, such as, we are previously stored with: the first demarcation signal produced during the photic electric induction interface of fine day LED lighting body, the second demarcation signal produced during the photic electric induction interface of rainy day LED lighting body, assume that the first demarcation signal be high level is the alternating signal of 1.2V, second demarcation signal is high level is the alternating signal of 0.4V, and signal S3 is high level is the alternating signal of 1.0V, then may determine that the first demarcation signal is the signal closest to signal S3, then can analyze, when obtaining signal S3, current weather is fine day, Fuzzy processing, think that current time is 12 points。
Based on above-mentioned analysis, the design philosophy of the present invention is, utilize the training of early stage, form a huge Signals Data Base, this data base contains the signal that under a variety of condition, luminous diode matrix feeds back in the off case, by obfuscation comparison match go out in aggregate signal S2 with the signal S3 demarcation signal being close, it is possible to analyze demarcation signal state, thus drawing the situation at the photic electric induction interface of LED lighting body when signal S3 measures。
Based on the detection method surveying thing direction-finding system of described multiple diode luminous body, comprise the following steps:
Initialization step: the object of various different characteristics is arranged on the photic electric induction interface of LED lighting body, obtains under diode off state owing to light sends a telegraph multiple demarcation signal S that principle producesThere is thing, the corresponding demarcation signal S of each type objectsThere is thing；When the photic electric induction interface of LED lighting body is not provided with object and in varying environment feature situation, obtain under diode off state owing to light sends a telegraph multiple demarcation signal S that principle producesEmpty, the corresponding demarcation signal S of each class environmental characteristicEmpty；By all demarcation signal SThere is thingFlock together formation aggregate signal SThere is thing, by all demarcation signal SEmptyFlock together formation aggregate signal SEmpty, by aggregate signal SThere is thingWith aggregate signal SEmptyFlock together formation aggregate signal S2；
Off state monitoring step: owing to light sends a telegraph the signal S3 that principle produces under detection diode off state；
Analyze and judge step: obfuscation comparison signal S3 and aggregate signal S2, choose signal immediate with signal S3 in aggregate signal S2, analyze the state closest to signal, it is judged that whether the photic electric induction interface of LED lighting body has object。
Judge when whether the photic electric induction interface of LED lighting body has object, when there being object, it is judged that the feature of object；When without object, it is judged that external environment condition feature；
Walking direction step: when signal S3 fuzzy matching to aggregate signal SThere is thingIn certain value immediate time, now, there is thing information at the photic electric induction interface of analysis circuit output diode luminous body of each survey thing device, direction finding analytical equipment records moment when there is thing information at the photic electric induction interface of LED lighting body of each analysis circuit output, and all moment are ranked up by mode from small to large, then it is assumed that object moves from the LED lighting body corresponding to the little moment to the direction of the LED lighting body corresponding to the big moment。
Embodiment 2
On the basis of embodiment 1, as shown in Figure 3, in the present embodiment, there are 2 and survey thing device, survey thing device by the first diode drive circuit for first, first off state observation circuit, first analysis circuit, first LED lighting body composition, survey thing device by the second diode drive circuit for second, second off state observation circuit, second analysis circuit, second LED lighting body, object passes through the first LED lighting body in the T1 moment, object passes through the second LED lighting body in the T2 moment, when there is thing information at the first photic electric induction interface of analysis circuit output diode luminous body, direction finding analysis circuit records moment T1, when there is thing information at the second photic electric induction interface of analysis circuit output diode luminous body, direction finding analysis circuit records moment T2, assume that T1 is less than T2, the second LED lighting body is moved to from the first LED lighting body when then may determine that object, assume that again T2 is less than T1, from the second LED lighting body that moves to the first LED lighting body when then may determine that object。
Therefore, we are when object having been detected, we also need to the direction of motion of judgment object, the present invention utilizes at least direction finding analytical equipment and at least 2 survey thing device composition direction-finding systems, survey thing device and complete the judgement whether having object, the moment surveying thing result of each survey thing device is recorded by direction finding analytical equipment, then arrange each survey thing device and survey the moment of thing result, after sequence from small to large, general record at first object survey thing device time be engraved in before, and finally record object survey thing device time be engraved in after, thus can draw the moving direction of object。
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, all in like manner include in the scope of patent protection of the present invention。
Claims (7)
1. the survey thing direction-finding system of multiple diode luminous body, it is characterised in that: including direction finding analytical equipment and at least 2 survey thing devices, each survey thing device includes diode drive circuit, off state observation circuit, analysis circuit, LED lighting body；
Diode drive circuit: for exporting the driving signal S1 of height alternating signal, diode current flow under high level state, diode turns off under low level；
Off state observation circuit: under monitor diode off state due to light send a telegraph principle produce signal S3；
Analysis circuit: transfer aggregate signal S2 and the signal S3 prestored and carry out fuzzy matching；
Aggregate signal S2 includes aggregate signal SThere is thingWith aggregate signal SEmpty；
Aggregate signal SThere is thing: there is object when the photic electric induction interface of LED lighting body, owing to light sends a telegraph multiple demarcation signal S that principle produces under diode off stateThere is thing, by multiple demarcation signal SThere is thingSet forms aggregate signal SThere is thing；
Aggregate signal SEmpty: there is no object when the photic electric induction interface of LED lighting body, owing to light sends a telegraph multiple demarcation signal S that principle produces under diode off stateEmpty, by multiple demarcation signal SEmptySet forms aggregate signal SEmpty；
Adopt aggregate signal S2 and signal S3 to carry out fuzzy matching, when signal S3 fuzzy matching to aggregate signal SThere is thingIn certain value immediate time, then there is thing information at the photic electric induction interface of output diode luminous body, signal S3 fuzzy matching to aggregate signal SEmptyIn certain value immediate time, then output diode luminous body photic electric induction interface empty information；
Direction finding analytical equipment: record moment when there is thing information at the photic electric induction interface of LED lighting body of each analysis circuit output, all moment are ranked up by mode from small to large, then it is assumed that object moves from the LED lighting body corresponding to the little moment to the direction of the LED lighting body corresponding to the big moment。
2. the survey thing direction-finding system of multiple diode luminous body according to claim 1, it is characterised in that: the plurality of demarcation signal SEmptyIncluding different characteristic object by under LED lighting body and diode off state due to light send a telegraph principle produce multiple demarcation signals。
3. the survey thing direction-finding system of multiple diode luminous body according to claim 2, it is characterised in that: by signal S3 and multiple demarcation signal SThere is thingCarry out fuzzy matching, match the demarcation signal S closest to signal S3There is thing, export this demarcation signal SThere is thingThe feature of corresponding object。
4. the survey thing direction-finding system of multiple diode luminous body according to claim 1, it is characterised in that: the plurality of demarcation signal SEmptyIncluding varying environment feature and LED lighting body photic electric induction interface without under object, diode off state owing to light sends a telegraph multiple demarcation signals that principle produces。
5. the survey thing direction-finding system of multiple diode luminous body according to claim 4, it is characterised in that: by multiple demarcation signal S in signal S3 and aggregate signal S2EmptyCarry out fuzzy matching, match the demarcation signal S closest to signal S3Empty, export this demarcation signal SThere is thingThe feature of corresponding environment。
6. based on the detection method surveying thing direction-finding system of multiple diode luminous body described in any one in claim 1-5, it is characterised in that comprise the following steps:
Initialization step: the object of various different characteristics is arranged on the photic electric induction interface of LED lighting body, obtains under diode off state owing to light sends a telegraph multiple demarcation signal S that principle producesThere is thing, the corresponding demarcation signal S of each type objectsThere is thing；When the photic electric induction interface of LED lighting body is not provided with object and in varying environment feature situation, obtain under diode off state owing to light sends a telegraph multiple demarcation signal S that principle producesEmpty, the corresponding demarcation signal S of each class environmental characteristicEmpty；By all demarcation signal SThere is thingFlock together formation aggregate signal SThere is thing, by all demarcation signal SEmptyFlock together formation aggregate signal SEmpty, by aggregate signal SThere is thingWith aggregate signal SEmptyFlock together formation aggregate signal S2；
Off state monitoring step: owing to light sends a telegraph the signal S3 that principle produces under detection diode off state；
Analyze and judge step: obfuscation comparison signal S3 and aggregate signal S2, choose signal immediate with signal S3 in aggregate signal S2, analyze the state closest to signal, it is judged that whether the photic electric induction interface of LED lighting body has object；
Walking direction step: when signal S3 fuzzy matching to aggregate signal SThere is thingIn certain value immediate time, now, there is thing information at the photic electric induction interface of analysis circuit output diode luminous body of each survey thing device, direction finding analytical equipment records moment when there is thing information at the photic electric induction interface of LED lighting body of each analysis circuit output, and all moment are ranked up by mode from small to large, then it is assumed that object moves from the LED lighting body corresponding to the little moment to the direction of the LED lighting body corresponding to the big moment。
7. based on the detection method described in claim 6, it is characterised in that judge when whether the photic electric induction interface of LED lighting body has object, when there being object, it is judged that the feature of object；When without object, it is judged that external environment condition feature。
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| US20020179815A1 (en) * | 2001-05-30 | 2002-12-05 | Ulrich Forke | Lighting control circuit |
| EP1701589A1 (en) * | 2005-03-08 | 2006-09-13 | Sony Ericsson Mobile Communications AB | Electric circuit and method for monitoring a temperature of a light emitting diode |
| CN101675709A (en) * | 2007-04-20 | 2010-03-17 | 皇家飞利浦电子股份有限公司 | Lighting device with the LED that is used to detect |
| CN103221981A (en) * | 2010-10-27 | 2013-07-24 | 皇家飞利浦电子股份有限公司 | A presence detection system and a lighting system |
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