CN107450105A - Infrared tube detection means and system - Google Patents
Infrared tube detection means and system Download PDFInfo
- Publication number
- CN107450105A CN107450105A CN201710779954.0A CN201710779954A CN107450105A CN 107450105 A CN107450105 A CN 107450105A CN 201710779954 A CN201710779954 A CN 201710779954A CN 107450105 A CN107450105 A CN 107450105A
- Authority
- CN
- China
- Prior art keywords
- resistance
- circuit
- reception pipe
- infrared
- detection means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The present invention provides a kind of infrared tube detection means and system,Device includes radiating circuit,Receiving circuit,Delay circuit and comparison circuit,Receiving circuit includes biasing resistor component and the reception pipe being connected with each other,Biasing resistor component includes at least two resistance of series connection,Radiating circuit launches infrared light,The reception pipe of receiving circuit works in linear zone,The negative pole of the reception pipe is connected with biasing resistor,The plus earth of reception pipe,The positive input of comparison circuit is connected in biasing resistor component between 2 resistance,The reverse input end of comparison circuit and the negative pole of reception pipe connect,Due to the presence of biasing resistor and delay circuit,When the infrared ray for exposing to reception pipe changes,Delay voltage difference between comparison circuit positive input and reverse input end be present,I.e. comparison circuit can export high level corresponding with the voltage difference that is delayed or low level,The infrared ray of reception pipe is exposed to accurately to detect whether that object blocks,So as to realize the infrared detection to high-speed moving object.
Description
Technical field
The present invention relates to infrared detection technology field, more particularly to infrared tube detection means and system.
Background technology
Infrared tube is the general designation of infrared transmitting tube and infrared receiving tube, is a kind of conventional photoelectric sensing of automatic detection
Device.
The conducting electric current of infrared receiving tube changes with the change of infrared incident intensity.When between transmitting tube and reception pipe
When there is no barrier, the conducting of reception pipe；When without Infrared irradiation or when being blocked by barrier, infrared receiving tube cut-off.
Exactly infrared tube has above-mentioned characteristic, and it is usually used in detection object position and some test the speed substantially, but its nothing
Method carries out infrared detection to high-speed moving object.
The content of the invention
Based on this, it is necessary to can not carry out infrared detection problem to high-speed moving object to pipe for traditional infrared, there is provided
A kind of infrared tube detection means and system that infrared detection is carried out to high-speed moving object.
A kind of infrared tube detection means, including radiating circuit, receiving circuit, delay circuit and comparison circuit；
Receiving circuit includes biasing resistor component and the reception pipe being connected with each other, and biasing resistor component includes series connection at least
2 resistance, the negative pole of reception pipe are connected with biasing resistor component, the plus earth of reception pipe；
Radiating circuit launches infrared light, so that reception pipe works in linear zone, the input of delay circuit in receiving circuit
End is connected in biasing resistor component between 2 resistance, and the positive input of comparison circuit and the output end of delay circuit connect,
The reverse input end of comparison circuit and the negative pole of reception pipe connect, the output end output infrared detection signal of comparison circuit.
Infrared tube detection means of the present invention, including radiating circuit, receiving circuit, delay circuit and comparison circuit, connect
Biasing resistor component and reception pipe that circuit includes being connected with each other are received, biasing resistor component includes at least two resistance of series connection, hair
Transmit-receive radio road launches infrared light, and the reception pipe of receiving circuit works in linear zone, and the negative pole of reception pipe is connected with biasing resistor, connect
The plus earth of closed tube, the positive input of comparison circuit are connected in biasing resistor component between 2 resistance, comparison circuit
Reverse input end and the negative pole of reception pipe connect, due to the presence of biasing resistor and delay circuit, when exposing to the red of reception pipe
Delay voltage difference, i.e. comparison circuit meeting when outside line changes, between comparison circuit positive input and reverse input end be present
Output high level corresponding with delay voltage difference or low level, the red of reception pipe is exposed to accurately to detect whether that object blocks
Outside line, so as to realize the infrared detection to high-speed moving object.
In addition, the present invention also provides a kind of infrared tube detecting system, including MCU and at least two it is infrared described above
To tube detection device, output ends of the MCU respectively with comparison circuit in each infrared tube detection means is connected.
Infrared tube detecting system of the present invention, including MCU and at least two infrared tube detection means described above are more
The reception pipe of receiving circuit works in linear zone in individual infrared tube detection means, and the negative pole of reception pipe is connected with biasing resistor,
The plus earth of reception pipe, the positive input of comparison circuit are connected in biasing resistor component between 2 resistance, comparison circuit
Reverse input end and the negative pole of reception pipe connect, due to the presence of biasing resistor and delay circuit, when exposing to reception pipe
Delay voltage difference, i.e. comparison circuit when infrared ray changes, between comparison circuit positive input and reverse input end be present
High level corresponding with the voltage difference that is delayed or low level can be exported, reception pipe is exposed to accurately to detect whether that object blocks
Infrared ray, so as to realize the infrared detection to high-speed moving object.
Brief description of the drawings
Fig. 1 is the common basic schematic diagram of infrared tube basic circuit；
Fig. 2 is the output signal schematic diagram of the common each state of infrared receiving tube；
Fig. 3 is the structural representation of infrared tube detection means one embodiment of the present invention；
Fig. 4 is the circuit theory schematic diagram of second embodiment of infrared tube detection means of the present invention；
Fig. 5 is signal output waveform schematic diagram in the one of application example of infrared tube detection means of the present invention；
Fig. 6 is the structural representation of infrared tube detecting system one embodiment of the present invention；
Fig. 7 is the structural representation of second embodiment of infrared tube detecting system of the present invention.
Embodiment
For explain in detail the technical scheme of infrared tube detection means of the present invention and its based on scientific theory foundation, below
Fig. 1 and Fig. 2 will be combined, for being explained first against traditional infrared tube, to describe the work of infrared tube original in detail
Reason and the significant effect of infrared tube detection means of the present invention.
As shown in figure 1, common infrared tube basic circuit, Rd is infrared transmitting tube IRLED current-limiting resistance, adjusts Rd
The infrared light emission intensity of controllable transmitting tube.Rq is infrared receiving tube Q1 biasing resistor, and A points are the output letters of reception pipe
Number, generally connect rear class detection circuit or single-chip microcomputer uses.As shown in Fig. 2 the output signal of each state of infrared receiving tube
(i.e. A points voltage) when reception pipe does not have Infrared irradiation or blocked by barrier, reception pipe is in cut-off state, electric current pole
Its is faint, and now A points voltage is substantially equal to VCC supply voltages；When the infrared light radiation that reception pipe receives is sufficiently strong, will enter
Saturation region, now reception pipe can be substantially equal to 0 by larger electric current, A point voltages；When infrared luminous intensity is in certain scope
Interior, reception pipe can work in linear zone, and now A points are pressed in 0V and VCC voltage ranges and reduced with the increase of infrared luminous intensity.
In addition, when infrared light is blocked by object moment, A points voltage can only form the less pulse signal of amplitude, and it is shorter to block the time,
The change of this impulse amplitude is smaller.
At present, the detection method of common infrared receiving tube signal has three kinds：The first is directly infrared receiving tube
Electric signal is connected to single-chip microcomputer and identifies high low logic level, and the method requires that infrared transmitting tube operating current is sufficiently large, sends foot
Enough strong infrared lights enable reception pipe saturation conduction, and reception pipe will work in cut-off state when having the barrier to block, this side
Method application conditions are harsher, and applicable situation is very limited；Second is that the signal of reception pipe is passed through amplifying circuit or ratio
Export into digital logic level compared with device circuit conversion and identified to single-chip microcomputer.The method can be effectively improved the deficiency of a method,
But multigroup when working pipe, original state when being operated in existing area due to each reception pipe and electricity when being blocked by moment
Pressing variable quantity, there is some difference, therefore the voltage comparator circuit of the amplifying circuit of fixed multiplication factor and fixed voltage threshold values
The above situation can not be handled；The third is the real-time change that reception pipe analog voltage signal is detected using the method for A/D samplings, only
The change for having signal in reception pipe is wanted, can determine that clear is blocked.But infrared tube quantity it is more when, to single-chip microcomputer
A/D resource requirements it is higher, and detection rates are relatively low, can not detect the object of high-speed mobile.
Based on the general principle and existing defects of the detection moving object of above-mentioned infrared tube, the present invention provides following a kind of
Infrared tube detection means, as shown in figure 3, it includes radiating circuit 110, receiving circuit 120, delay circuit 130 and compared
Circuit 140；
Receiving circuit 120 includes the biasing resistor component 122 and reception pipe Q1 being connected with each other, and biasing resistor component 122 wraps
At least two resistance of series connection is included, reception pipe Q1 negative pole is connected with biasing resistor component 122, reception pipe Q1 plus earth；
Radiating circuit 110 launches infrared light, so that reception pipe Q1 works in linear zone, delay electricity in receiving circuit 120
The input on road 130 is connected in biasing resistor component 122 between 2 resistance, the positive input of comparison circuit 140 and delay
The output end connection of circuit 130, the reverse input end of comparison circuit 140 are connected with reception pipe Q1 negative pole, comparison circuit 140
Output end exports infrared detection signal.
Radiating circuit 110 is used to launch infrared ray, the reception pipe Q1 in the infrared radiation receiving circuit 120 sent, no
Infrared radiation with intensity can be three different operating areas that reception pipe Q1 is in cut-off, saturation and linear zone, at this
In, radiating circuit 110 adjusts its own transmission infra-red intensity, so as to be worked in linearly by the reception pipe Q1 of the infrared radiation
Area.As shown in figure 4, in one of the embodiments, radiating circuit 110 includes first resistor R1 and transmitting tube IRLED, the first electricity
Resistance R1 one end is connected with external power source, and the first resistor R1 other end is connected with transmitting tube IRLED positive pole, transmitting tube
IRLED negative pole ground connection, regulation first resistor R1 resistance are the intensity that adjustable transmitting tube IRLED sends infrared ray.
Receiving circuit 120 is used for the infrared ray for receiving the transmitting of radiating circuit 110, and has mutation when receiving infra-red intensity
Produced when (having object to block) and export corresponding electric signal.Receiving circuit 120 includes the biasing resistor component being connected with each other
122 and reception pipe Q1, biasing resistor component 122 include at least two resistance of series connection, reception pipe Q1 negative pole and biasing resistor group
Part 122 connects, reception pipe Q1 plus earth.The positive input of comparison circuit 140 is connected to biasing by delay circuit 130
In resistor assembly 122 between any 2 resistance, the reverse input end of comparison circuit 140 is connected with reception pipe Q1 negative pole, i.e., with
Last resistor connects close to reception pipe Q1 one end in biasing resistor component 122, the positive input of such comparison circuit 140
Just there will necessarily be at least individual resistance between end and reverse input end, the positive input and reverse input end of comparison circuit 140 it
Between there will necessarily be a voltage difference.As shown in figure 4, in one of the embodiments, biasing resistor component 122 includes second resistance
R2 and 3rd resistor R3, second resistance the R2 other end are connected with 3rd resistor R3 one end, the 3rd resistor R3 other end with
Reception pipe Q1 negative pole connection.In the present embodiment, the positive input of comparison circuit 140 is connected to second resistance R2 and the 3rd
Between resistance R3, the discovery input of comparison circuit 140 is connected between 3rd resistor R3 and reception pipe Q1, comparison circuit 140
Positive input and reverse input end between 3rd resistor R3 be present, i.e., the voltage on 3rd resistor R3 between both ends be present
Difference.
Delay circuit 130 is used to produce time delayed signal, and the one end of delay circuit 130 is connected in biasing resistor component 122 2
Between resistance, the other end of delay circuit 130 is connected with the positive input of comparison circuit 140, is inputted to delay circuit 130
Signal is exported after delay process to the positive input of comparison circuit 140.As shown in figure 4, in one of the embodiments,
Delay circuit 130 includes the 4th resistance R4 and electric capacity C1, and the 4th resistance R4 one end is electric with second resistance R2 and the 3rd respectively
R3 connections are hindered, the 4th resistance R4 other end is connected with electric capacity C1 one end, electric capacity C1 other end ground connection.
Comparison circuit 140 is used for the signal (voltage) for comparing its positive input and reverse input end, is inputted according to forward direction
End is corresponding with the voltage difference of reverse input end to export low and high level, i.e., characterizes voltage difference conversion using low and high level, so
Even if magnitude of voltage it is small also can accurate characterization come out, this process can be understood as being converted into the process of " qualitative " from " quantitative ".
If before, traditional infrared to pipe to high-speed object carry out infrared detection when, may be blocked due to object produce voltage difference it is small,
When compole section lead to not be detected, herein, accurate characterization infrared ray is obscured by an object by the way of low and high level
Situation, without considering to cause voltage difference size.As shown in figure 4, in one of the embodiments, comparison circuit 140 include than
Compared with device and the 5th resistance R5, the one end of the positive input of comparator respectively with the resistance R5 of delay circuit 130 and the 5th is connected,
The reverse input end of comparator is connected with the negative pole of reception pipe Q1 in receiving circuit 120, the output end of comparator and the 5th resistance
R5 other end connection, forms hysteresis loop comparator so that stable output signal commutation between the 5th resistance R5 and comparator.More enter
One step, comparison circuit 140 also includes the 6th resistance R6, and the 6th resistance R6 one end and the output end of comparator connect, and the 6th
The resistance R6 other end is connected with external power source.6th resistance R6 is pull-up resistor, and comparator can select LM339.
Infrared tube detection means of the present invention, including radiating circuit 110, receiving circuit 120, delay circuit 130 and ratio
Compared with circuit 140, receiving circuit 120 includes the biasing resistor component 122 and reception pipe Q1 being connected with each other, biasing resistor component 122
At least two resistance including series connection, radiating circuit 110 launch infrared light, and the reception pipe Q1 of receiving circuit 120 is worked in linearly
Area, reception pipe Q1 negative pole are connected with biasing resistor, reception pipe Q1 plus earth, and the positive input of comparison circuit 140 connects
It is connected in biasing resistor component 122 between 2 resistance, the reverse input end of comparison circuit 140 is connected with reception pipe Q1 negative pole,
Due to the presence of biasing resistor and delay circuit 130, when the infrared ray for exposing to reception pipe Q1 changes, comparison circuit
Delay voltage difference between 140 positive inputs and reverse input end be present, i.e. comparison circuit 140 can export and be delayed voltage difference pair
The high level or low level answered, reception pipe Q1 infrared ray is exposed to accurately to detect whether that object blocks, so as to realize pair
The infrared detection of high-speed moving object.
Further to explain in detail the technical scheme of infrared tube detection means of the present invention, one will be used specifically should below
With example, and Fig. 4 is combined, described in detail.
As shown in figure 4, in concrete application example, infrared tube detection means of the present invention includes radiating circuit 110, received
Circuit 120, delay circuit 130 and comparison circuit 140, wherein, radiating circuit 110 includes first resistor R1 and transmitting tube
IRLED, receiving circuit 120 include biasing resistor component and reception pipe Q1, and biasing resistor component includes the second resistance R2 of series connection
With 3rd resistor R3, delay circuit 130 includes the 4th resistance R4 and electric capacity C1, and comparison circuit 140 includes comparator, the 5th resistance
R5 and the 6th resistance R6；
First resistor R1 one end is connected with power supply VCC, and the first resistor R1 other end connects with transmitting tube IRLED positive pole
Connect, transmitting tube IRLED negative pole ground connection；Second resistance R2 one end power supply VCC connections, the second resistance R2 other end and the 3rd
Resistance R3 one end connection, the 3rd resistor R3 other end are connected with reception pipe Q1 negative pole, reception pipe Q1 plus earth；The
Four resistance R4 one end is connected to the A points between second resistance R2 and 3rd resistor R3, the 4th resistance the R4 other end and electric capacity
C1 one end is connected to the C points of the positive input of comparator, electric capacity C1 other end ground connection, and the reverse input end of comparator connects
The B points being connected between 3rd resistor R3 and reception pipe Q1 negative poles, the positive input connection of the 5th resistance R5 one end comparator,
The 5th resistance R5 other end and the output end of comparator connect, and the 6th resistance R6 one end is connected to the D points of comparator output terminal,
The 6th resistance R6 other ends are connected with power supply VCC.
First resistor R1 carries out current limliting to transmitting tube IRLED, so that the infra-red intensity irradiation of transmitting tube IRLED transmittings connects
After closed tube Q1, reception pipe Q1 is in linear work area, and biasing resistor component includes second resistance R2 and 3rd resistor R3, compared
The voltage difference on 3rd resistor R3, and the signal of positive input between device positive input and reverse input end be present
(signal) is handled by delay circuit 130.When unobstructed, even if inconsistency be present in the voltage of different reception pipe B points,
It can guarantee that A points voltage is slightly larger than B point voltages, the signal of A points be connected to the RC delay electricity of the 4th resistance R4 and electric capacity C compositions
Road, reception pipe by infrared intensity of illumination it is constant in the case of, C point voltages are approximately equal to A point voltages；When infrared intensity of illumination changes
When, C point signals will be late by the change of A point voltage signals.B points and C points are respectively connecting to negative terminal input and the anode of comparator
Input, when B points voltage is higher than C voltage, comparator output signal D points output 0, when C voltage is higher than B voltages, D points output 1.The
Output end D points and anode the input C points that five resistance R5 are connected to, form hysteresis loop comparator so that stable output signal commutation, separately
Outside, comparator can select LM339, and it is open-drain output destructing, therefore sets pull-up resistor R6 in D points.
It is respectively that the signal of B, C, D point becomes as shown in figure 5, the characteristics of signals of infrared tube detection means of the present invention, on figure
Change relation, when there is object to block, even moment blocks, infrared tube detection means energy quick response of the present invention, and handle
Signal is converted into digital logic level, and infrared tube detection means of the present invention can detect to block the time less than Millisecond is other,
Also can accurately it be detected even if objects at high speed movement.
As shown in fig. 6, a kind of infrared tube detecting system, including MCU and at least two infrared tube detection described above
Device, output ends of the MCU respectively with comparison circuit in each infrared tube detection means are connected.
Infrared tube detecting system of the present invention, including MCU and at least two infrared tube detection means described above are more
The reception pipe of receiving circuit works in linear zone in individual infrared tube detection means, and the negative pole of reception pipe is connected with biasing resistor,
The plus earth of reception pipe, the positive input of comparison circuit are connected in biasing resistor component between 2 resistance, comparison circuit
Reverse input end and the negative pole of reception pipe connect, due to the presence of biasing resistor and delay circuit, when exposing to reception pipe
Delay voltage difference, i.e. comparison circuit when infrared ray changes, between comparison circuit positive input and reverse input end be present
High level corresponding with the voltage difference that is delayed or low level can be exported, reception pipe is exposed to accurately to detect whether that object blocks
Infrared ray, so as to realize the infrared detection to high-speed moving object.
As shown in fig. 7, in one of the embodiments, infrared tube detecting system of the present invention also includes LED light group, LED
Lamp group includes at least two LED, and the quantity of LED is identical with the quantity of infrared tube detection means, each LED respectively with
MCU connections.
In the present embodiment, infrared tube detecting system of the present invention also includes LED light group, includes in LED light group multiple
LED, the quantity of LED is identical with the quantity of infrared tube detection means, i.e., each LED fills with the detection of single infrared tube
Put correspondingly, it is the high/low level of output that LED characterizes corresponding infrared tube detection means by way of dodging/going out, and enters one
Whether being characterized on the infrared ray path of its transmitting tube and reception pipe for step has object to block.
As shown in fig. 7, in one of the embodiments, infrared tube detecting system of the present invention also includes power supply, power supply with
MCU connections.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of infrared tube detection means, it is characterised in that including radiating circuit, receiving circuit, delay circuit and compare
Circuit；
The receiving circuit includes biasing resistor component and the reception pipe being connected with each other, and the biasing resistor component includes series connection
At least two resistance, the negative pole of the reception pipe are connected with the biasing resistor component, the plus earth of the reception pipe；
The radiating circuit launches infrared light, so that reception pipe works in linear zone described in the receiving circuit, it is described to prolong
When circuit input be connected in the biasing resistor component between 2 resistance, the positive input of the comparison circuit with
The output end connection of the delay circuit, the reverse input end of the comparison circuit is connected with the negative pole of the reception pipe, described
The output end output infrared detection signal of comparison circuit.
2. infrared tube detection means according to claim 1, it is characterised in that the radiating circuit includes first resistor
And transmitting tube, one end of the first resistor are connected with external power source, the other end of the first resistor and the transmitting tube
Positive pole connects, the negative pole ground connection of the transmitting tube.
3. infrared tube detection means according to claim 1, it is characterised in that the biasing resistor component includes second
Resistance and 3rd resistor, one end of the second resistance are connected with external power source, the other end of the second resistance and described the
One end connection of three resistance, the other end of the 3rd resistor are connected with the negative pole of the reception pipe.
4. infrared tube detection means according to claim 3, it is characterised in that the delay circuit includes the 4th resistance
With electric capacity, one end of the 4th resistance is connected with the second resistance and the 3rd resistor respectively, the 4th resistance
The other end be connected with one end of the electric capacity, the other end of electric capacity ground connection.
5. infrared tube detection means according to claim 1, it is characterised in that the comparison circuit include comparator and
5th resistance, the one end of the positive input of the comparator respectively with the delay circuit and the 5th resistance are connected,
The reverse input end of the comparator is connected with the negative pole of reception pipe in the receiving circuit, the output end of the comparator and institute
State the other end connection of the 5th resistance.
6. infrared tube detection means according to claim 5, it is characterised in that the comparison circuit also includes the 6th electricity
Resistance, one end of the 6th resistance are connected with the output end of the comparator, the other end and external power source of the 6th resistance
Connection.
7. infrared tube detection means according to claim 1, it is characterised in that the comparator includes LM339 models
Comparator.
8. a kind of infrared tube detecting system, it is characterised in that including any one in MCU and at least two such as claim 1-7
Infrared tube detection means described in, the MCU outputs with comparison circuit in each infrared tube detection means respectively
End connection.
9. infrared tube detecting system according to claim 8, it is characterised in that also including LED light group, the LED
Group includes at least two LED, and the quantity of the LED is identical with the quantity of the infrared tube detection means, each described
LED is connected with the MCU respectively.
10. infrared tube detecting system according to claim 8, it is characterised in that also including power supply, the power supply and institute
State MCU connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779954.0A CN107450105B (en) | 2017-09-01 | 2017-09-01 | Infrared geminate transistor detection device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779954.0A CN107450105B (en) | 2017-09-01 | 2017-09-01 | Infrared geminate transistor detection device and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107450105A true CN107450105A (en) | 2017-12-08 |
| CN107450105B CN107450105B (en) | 2022-04-05 |
Family
ID=60493551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710779954.0A Active CN107450105B (en) | 2017-09-01 | 2017-09-01 | Infrared geminate transistor detection device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107450105B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108096597A (en) * | 2018-01-08 | 2018-06-01 | 厦门慧晶智能科技有限公司 | A kind of intelligent automatic disinfection method for knife rest |
| CN108121016A (en) * | 2018-01-24 | 2018-06-05 | 深圳市信威电子有限公司 | Enter paper detection sensor and device |
| CN108761483A (en) * | 2018-05-24 | 2018-11-06 | 苏州经贸职业技术学院 | A kind of infrared obstacle avoidance detection module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4032777A (en) * | 1976-03-29 | 1977-06-28 | Mccaleb Robert Earl | Photomeric monitoring device |
| US4215278A (en) * | 1975-06-02 | 1980-07-29 | Commissariat A L'energie Atomique | Detector for abnormal phenomena |
| CN101093983A (en) * | 2006-06-21 | 2007-12-26 | 夏普株式会社 | Comparing circuit and infrared receiver |
| CN101534111A (en) * | 2008-03-12 | 2009-09-16 | 鸿富锦精密工业（深圳）有限公司 | Automatic control circuit of display power supply |
| CN207396767U (en) * | 2017-09-01 | 2018-05-22 | 珠海市杰理科技股份有限公司 | Infrared tube detection device and system |
-
2017
- 2017-09-01 CN CN201710779954.0A patent/CN107450105B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4215278A (en) * | 1975-06-02 | 1980-07-29 | Commissariat A L'energie Atomique | Detector for abnormal phenomena |
| US4032777A (en) * | 1976-03-29 | 1977-06-28 | Mccaleb Robert Earl | Photomeric monitoring device |
| CN101093983A (en) * | 2006-06-21 | 2007-12-26 | 夏普株式会社 | Comparing circuit and infrared receiver |
| CN101534111A (en) * | 2008-03-12 | 2009-09-16 | 鸿富锦精密工业（深圳）有限公司 | Automatic control circuit of display power supply |
| CN207396767U (en) * | 2017-09-01 | 2018-05-22 | 珠海市杰理科技股份有限公司 | Infrared tube detection device and system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108096597A (en) * | 2018-01-08 | 2018-06-01 | 厦门慧晶智能科技有限公司 | A kind of intelligent automatic disinfection method for knife rest |
| CN108096597B (en) * | 2018-01-08 | 2020-06-23 | 厦门慧晶智能科技有限公司 | Intelligent automatic disinfection method for tool rest |
| CN108121016A (en) * | 2018-01-24 | 2018-06-05 | 深圳市信威电子有限公司 | Enter paper detection sensor and device |
| CN108761483A (en) * | 2018-05-24 | 2018-11-06 | 苏州经贸职业技术学院 | A kind of infrared obstacle avoidance detection module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107450105B (en) | 2022-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103063979B (en) | Load open-circuit detection circuit | |
| CN103024994B (en) | Use dimming control system and the method for TRIAC dimmer | |
| CN107450105A (en) | Infrared tube detection means and system | |
| CN202583311U (en) | Alternating current zero-crossing detection circuit | |
| CN106061053B (en) | A kind of underwater robot lighting control system | |
| CN103713181B (en) | Weak current signal supervisory instrument | |
| CN103728037A (en) | Junction temperature monitoring circuit system for high-power LED reliability test | |
| CN207069553U (en) | A kind of control circuit for realizing hardware watchdog and automatic time delay break-make Electricity Functional | |
| CN209069421U (en) | A kind of test device of single-photon detector | |
| CN202190442U (en) | Chopping dimming device | |
| CN207396767U (en) | Infrared tube detection device and system | |
| CN205179443U (en) | LED drive power supply of detectable natural light | |
| CN202330525U (en) | Current range determination device | |
| CN103684385A (en) | Anti-interference photoelectric switch circuit | |
| CN104299402B (en) | Infrared learning method using AD mode | |
| CN101271163A (en) | Infrared inductor and method thereof | |
| CN105182447A (en) | Photoelectric correlation sensor detection system and method | |
| CN207504877U (en) | Intermediate-freuqncy signal amplitude detecting device | |
| CN214704590U (en) | Ambient light identification circuit for infrared touch screen | |
| CN105241796A (en) | Dust detection apparatus | |
| CN211457473U (en) | Dimming circuit and dimming switch | |
| CN209433386U (en) | Anti-interference infrared touch panel | |
| CN202216703U (en) | Sunlight tracking sensor capable of recognizing direct light and diffused light | |
| CN206686138U (en) | A kind of photovoltaic junction box and photovoltaic generating system | |
| CN204576468U (en) | Be applicable to the infrared touch panel circuit of strong surround lighting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 519000 No. 333, Kexing Road, Xiangzhou District, Zhuhai City, Guangdong Province Applicant after: ZHUHAI JIELI TECHNOLOGY Co.,Ltd. Address before: Floor 1-107, building 904, ShiJiHua Road, Zhuhai City, Guangdong Province Applicant before: ZHUHAI JIELI TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |