CN203037576U - Intelligent diffuse reflection photoelectric sensor - Google Patents
Intelligent diffuse reflection photoelectric sensor Download PDFInfo
- Publication number
- CN203037576U CN203037576U CN 201220635905 CN201220635905U CN203037576U CN 203037576 U CN203037576 U CN 203037576U CN 201220635905 CN201220635905 CN 201220635905 CN 201220635905 U CN201220635905 U CN 201220635905U CN 203037576 U CN203037576 U CN 203037576U
- Authority
- CN
- China
- Prior art keywords
- current source
- circuit
- assignment
- emission
- compensate
- 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.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model provides an intelligent diffuse reflection photoelectric sensor and relates to the technical field of photoelectric sensors. A detection system of the sensor is connected with a control system; a transmitting tube is arranged on one side of a transmitting lens of the detection system; an anode of the transmitting tube is connected with a power supply; a cathode of the transmitting tube is connected with one end of a first phase and assignment controlled current source; an A phase of the first phase and assignment controlled current source is connected with one end of a clock source; the other end of the clock source is connected with a B phase of a second phase and assignment controlled current source; an IO (input/output) end of the second phase and assignment controlled current source is connected with a signal conditioning circuit and a magnitude comparator; the magnitude comparator is connected with a preamplification circuit; one end of the second phase and assignment controlled current source is connected with a cathode of a compensation transmitting tube; an anode of the compensation transmitting tube is connected with a power supply; and the compensation transmitting tube is matched with a light guider. The sensor can resist high light interference, and has intelligent setting and self-correction functions, and the effective detection distance can reach 10m since the sensor is very high in sensitivity in a balanced state.
Description
Technical field:
The utility model relates to the photoelectric sensor technical field, is specifically related to intelligent diffuse reflection type photoelectric sensor.
Background technology:
At present, the diffuse reflection type photoelectric sensor does not need the light path of aliging when installing and using owing to it, saving is installed and used advantages such as space and is widely used, be to use very wide one type in the electro-optical pickoff, but the existing diffuse reflection type sensor in market all is one group of ballistic device, the reflected signal of receiving device receiving target thing, according to its strong and weak result of determination, along with surround lighting strengthens, the sensitivity meeting of receiving device descends, if therefore have sunlit occasion sensor to survey outdoor by mistake.Present sensor distance is regulated needs to use potentiometer, at some more abominable industry control environment, the scene that is difficult to carry out arranges, and be designed to intelligently all need to use the AD of high-speed, high precision to gather, its cost is very high, and circuit complexity height can't be realized the miniaturization of sensor, so Intelligence sensor can't be promoted always well.
Referring to Fig. 1, existing diffuse reflection type photoelectric sensor is made up of transmitter 1, firing pulse generator 2, receiver 3, signal conditioning circuit 4, logic output circuit 5, testee 6, it is that transmitter and receiver place one, and receiver can not receive the light signal that transmitter sends under the normal condition; When detect thing by the time intercepted light path, and a part of light is reflected, receiver is received light signal, exports a switch controlling signal.
There is following shortcoming in existing diffuse reflection type photoelectric sensor:
One, the power of surround lighting can directly influence receiver sensitivity, and surround lighting is crossed the testing result that can influence sensor by force, uses below 5000Lux usually;
Two, distance adjustment need be used potentiometer, and signal amplifies front end placement potentiometer can introduce noise, and the product degree of protection descends simultaneously, and can't satisfy the adjustment demand of intellectualizing system;
Three, detect close together, the column type photoelectric sensor of existing diameter 30mm specification, detecting distance is 1 meter.
The utility model content:
The purpose of this utility model provides intelligent diffuse reflection type photoelectric sensor, and it can resist high light to disturb, and has intelligent setting, self-correcting function certainly, because equilibrium state sensitivity is very high, effectively detects apart from arriving ten meters.
In order to solve the existing problem of background technology, the utility model is to adopt following technical scheme: it comprises detection system A1, control system A2, detection system A1 is connected with control system A2, described detection system A1 comprises first phase place and assignment controllable current source 11, clock source 12, diversing lens 13, second phase place and assignment controllable current source 14, magnitude comparator 15, pre-amplification circuit 16, receiver lens 17, lightguide 18, power valve S1, compensate for emission pipe C1, photodiode PD1, one side of diversing lens 13 is provided with power valve S1, the positive pole of power valve S1 connects power supply, the negative pole of power valve S1 is connected with an end of first phase place and assignment controllable current source 11, the A of first phase place and assignment controllable current source 11 is connected with an end in clock source 12, the other end in clock source 12 is connected with the B of second phase place and assignment controllable current source 14, the IO of second phase place and assignment controllable current source 14 end respectively with signal conditioning circuit, magnitude comparator 15 connects, magnitude comparator 15 is connected with pre-amplification circuit 16, one end of second phase place and assignment controllable current source 14 is connected with the negative pole of compensate for emission pipe C1, the positive pole of compensate for emission pipe C1 connects power supply, compensate for emission pipe C1 matches with lightguide 18, one side of lightguide 18 is provided with photodiode PD1, the side of photodiode PD1 is provided with receiver lens 17, and the both positive and negative polarity of photodiode PD1 all is connected with power supply; Described control system A2 comprises HALIOS system 21, set and exponent circuit 25, sensor output circuit 26, receive and pre-amplification circuit 27, power supply stabilizing circuit 28, emission and compensate for emission circuit 29, the inside of HALIOS system 21 is provided with HALIOS letter conditioning module 22, emission parameter adjusting module 23, I/O module 24, power supply stabilizing circuit 28 is connected with HALIOS system 21, reception and pre-amplification circuit 27 are connected with HALIOS letter conditioning module 22, emission parameter adjusting module 23 is connected with emission and compensate for emission circuit 29, I/O module 24 interconnects with setting and exponent circuit 25, and I/O module 24 is connected with sensor output circuit 26.
The utility model is by the driven with current sources conducting, control signal is one group of reverse pulse, power valve S1 and compensate for emission pipe C1 alternate conduction, when power valve S1 conducting, photodiode PD receives the signal by the object reflection, when compensate for emission pipe C1 conducting, what photodiode PD1 received is the compensating signal that conducts through lightguide, signal is through after receiving preposition amplification, compare twice amplitude, the HALIOS system core is the stack by amplitude signal, makes the signal after the stack reach dynamic balancing state.When causing dynamic balancing state to be destroyed from the signal of outside and interference, system is from normal moveout correction, object is in the close enhancing that transmits that receives, this moment, system can increase the electric current of compensate for emission pipe automatically, make and receive signal balance again, and how many electric currents are system can increase according to the compensate for emission pipe, judge the amplitude of variation of object.HALIOS is a kind of unique detection algorithm, and it is to judge the object volume reflection according to the variable quantity of regulating the compensate for emission signal, has changed the conventional electric transducer that diffuses fully and has relied on the reception amplitude to judge the way of object volume reflection.
The utility model has following advantage: one, anti-high light disturbs, and sensor can be used in the occasion of ambient light intensity as 200000Lux, has thoroughly solved existing photoelectric sensor and can't be suitable for shortcoming with the high light environment;
Two, changed conventional photoelectric sensor and must rely on potentiometer to carry out distance adjustment, had intelligent from setting, self-correcting function;
Three, because equilibrium state sensitivity is very high, detecting apart from having realized breakthrough greatly, effectively detects distance and can arrive ten meters.
Description of drawings:
Fig. 1 is the structural representation of background technology,
Fig. 2 is structural representation of the present utility model,
Fig. 3 is the structural representation of detection system A1 in the utility model,
Fig. 4 is the structural representation of control system A2 in the utility model,
Fig. 5 receives in the utility model and the structural representation of pre-amplification circuit 27,
Fig. 6 is the structural representation of sensor output circuit 26 in the utility model.
Embodiment:
Referring to Fig. 2-Fig. 4, this embodiment adopts following technical scheme: it comprises detection system A1, control system A2, detection system A1 is connected with control system A2, described detection system A1 comprises first phase place and assignment controllable current source 11, clock source 12, diversing lens 13, second phase place and assignment controllable current source 14, magnitude comparator 15, pre-amplification circuit 16, receiver lens 17, lightguide 18, power valve S1, compensate for emission pipe C1, photodiode PD1, one side of diversing lens 13 is provided with power valve S1, the positive pole of power valve S1 connects power supply, the negative pole of power valve S1 is connected with an end of first phase place and assignment controllable current source 11, the A of first phase place and assignment controllable current source 11 is connected with an end in clock source 12, the other end in clock source 12 is connected with the B of second phase place and assignment controllable current source 14,10 ends of second phase place and assignment controllable current source 14 respectively with signal conditioning circuit, magnitude comparator 15 connects, magnitude comparator 15 is connected with pre-amplification circuit 16, one end of second phase place and assignment controllable current source 14 is connected with the negative pole of compensate for emission pipe C1, the positive pole of compensate for emission pipe C1 connects power supply, compensate for emission pipe C1 matches with lightguide 18, one side of lightguide 18 is provided with photodiode PD1, the side of photodiode PD1 is provided with receiver lens 17, and the both positive and negative polarity of photodiode PD1 all is connected with power supply; Described control system A2 comprises HALI0S system 21, set and exponent circuit 25, sensor output circuit 26, receive and pre-amplification circuit 27, power supply stabilizing circuit 28, emission and compensate for emission circuit 29, the inside of HALIOS system 21 is provided with HALIOS letter conditioning module 22, emission parameter adjusting module 23, I/O module 24, power supply stabilizing circuit 28 is connected with HALLOS system 21, reception and pre-amplification circuit 27 are connected with HALLOS letter conditioning module 22, emission parameter adjusting module 23 is connected with emission and compensate for emission circuit 29, I/O module 24 interconnects with setting and exponent circuit 25, and I/O module 24 is connected with sensor output circuit 26.
Referring to Fig. 5, the sensor input voltage range is 10～30VDC in the described power supply stabilization circuit 28, the simulation part component voltage of E909.06 is 2.5V, digital operation voltage is 3.3V, and emission LED supply voltage is 3.3V or 5V, and the supply voltage of E909.07 is 3.3V, therefore three groups of power supplys in system, have been designed, to guarantee power demands and the system stability of system, in order to eliminate the noise that the simulation amplifier section is brought by power supply, system will simulate ground and digitally separate during design.
Referring to Fig. 6, described sensor output circuit 26 uses the E909.07 chip to do preposition amplification, this amplifies chip is to aim at electro-optical system to amplify and cooperate E909.06 and design, it has very high sensitivity, it is saturated that two Gyrator can eliminate the received current that the high light environment causes, phase shifts is very little, has standby mode and can reduce current drain, and signal bandwidth can arrive 500KHz.
This embodiment is by the driven with current sources conducting, control signal is one group of reverse pulse, power valve S1 and compensate for emission pipe C1 alternate conduction, when power valve S1 conducting, photodiode PD receives the signal by the object reflection, when compensate for emission pipe C1 conducting, what photodiode PD1 received is the compensating signal that conducts through lightguide, signal is through after receiving preposition amplification, compare twice amplitude, the HALIOS system core is the stack by amplitude signal, makes the signal after the stack reach dynamic balancing state.When causing dynamic balancing state to be destroyed from the signal of outside and interference, system is from normal moveout correction, object is in the close enhancing that transmits that receives, this moment, system can increase the electric current of compensate for emission pipe automatically, make and receive signal balance again, and how many electric currents are system can increase according to the compensate for emission pipe, judge the amplitude of variation of object.HALIOS is a kind of unique detection algorithm, and it is to judge the object volume reflection according to the variable quantity of regulating the compensate for emission signal, has changed the conventional electric transducer that diffuses fully and has relied on the reception amplitude to judge the way of object volume reflection.
This embodiment has following advantage: one, anti-high light disturbs, and sensor can be used in the occasion of ambient light intensity as 200000Lux, has thoroughly solved existing photoelectric sensor and can't be suitable for shortcoming with the high light environment;
Two, changed conventional photoelectric sensor and must rely on potentiometer to carry out distance adjustment, the design's sensor has intelligent from setting, self-correcting function;
Three, because equilibrium state sensitivity is very high, detecting apart from having realized breakthrough greatly, effectively detects distance and can arrive ten meters.
Claims (1)
1. intelligent diffuse reflection type photoelectric sensor, it is characterized in that it comprises detection system (A1), control system (A2), detection system (A1) is connected with control system (A2), described detection system (A1) comprises first phase place and assignment controllable current source (11), clock source (12), diversing lens (13), second phase place and assignment controllable current source (14), magnitude comparator (15), pre-amplification circuit (16), receiver lens (17), lightguide (18), power valve (S1), compensate for emission pipe (C1), photodiode (PD1), one side of diversing lens (13) is provided with power valve (S1), the positive pole of power valve (S1) connects power supply, the negative pole of power valve (S1) is connected with an end of first phase place and assignment controllable current source (11), the A of first phase place and assignment controllable current source (11) is connected with an end of clock source (12), the other end in clock source (12) is connected with the B of second phase place and assignment controllable current source (14), the IO of second phase place and assignment controllable current source (14) end respectively with signal conditioning circuit, magnitude comparator (15) connects, magnitude comparator (15) is connected with pre-amplification circuit (16), one end of second phase place and assignment controllable current source (14) is connected with the negative pole of compensate for emission pipe (C1), the positive pole of compensate for emission pipe (C1) connects power supply, compensate for emission pipe (C1) matches with lightguide (18), one side of lightguide (18) is provided with photodiode (PD1), one side of photodiode (PD1) is provided with receiver lens (17), and the both positive and negative polarity of photodiode (PD1) all is connected with power supply; Described control system (A2) comprises HALIOS system (21), set and exponent circuit (25), sensor output circuit (26), receive and pre-amplification circuit (27), power supply stabilizing circuit (28), emission and compensate for emission circuit (29), the inside of HALIOS system (21) is provided with HALIOS letter conditioning module (22), emission parameter adjusting module (23), I/O module (24), power supply stabilizing circuit (28) is connected with HALIOS system (21), reception and pre-amplification circuit (27) are connected with HALIOS letter conditioning module (22), emission parameter adjusting module (23) is connected with emission and compensate for emission circuit (29), I/O module 24 interconnects with setting and exponent circuit (25), and I/O module (24) is connected with sensor output circuit (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635905 CN203037576U (en) | 2012-11-28 | 2012-11-28 | Intelligent diffuse reflection photoelectric sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635905 CN203037576U (en) | 2012-11-28 | 2012-11-28 | Intelligent diffuse reflection photoelectric sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203037576U true CN203037576U (en) | 2013-07-03 |
Family
ID=48689687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220635905 Withdrawn - After Issue CN203037576U (en) | 2012-11-28 | 2012-11-28 | Intelligent diffuse reflection photoelectric sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203037576U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389286A (en) * | 2012-11-28 | 2013-11-13 | 上海兰宝传感科技股份有限公司 | Intelligent diffuse reflection type photoelectric sensor |
| CN105589549A (en) * | 2014-10-22 | 2016-05-18 | 惠州市德赛西威汽车电子股份有限公司 | Optical control device based on infrared induction |
-
2012
- 2012-11-28 CN CN 201220635905 patent/CN203037576U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389286A (en) * | 2012-11-28 | 2013-11-13 | 上海兰宝传感科技股份有限公司 | Intelligent diffuse reflection type photoelectric sensor |
| CN103389286B (en) * | 2012-11-28 | 2016-08-10 | 上海兰宝传感科技股份有限公司 | Intelligent diffuse-reflectance formula photoelectric sensor |
| CN105589549A (en) * | 2014-10-22 | 2016-05-18 | 惠州市德赛西威汽车电子股份有限公司 | Optical control device based on infrared induction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107478552B (en) | Oil smoke concentration sensor and oil smoke concentration detection device and detection method thereof | |
| WO2008030533A3 (en) | System and method for power amplifier output power control | |
| CN103424768A (en) | Gain stabilizing apparatus for detector system and controlling method thereof | |
| CN101271163B (en) | Infrared inductor and method thereof | |
| CN203037576U (en) | Intelligent diffuse reflection photoelectric sensor | |
| CN103389286A (en) | Intelligent diffuse reflection type photoelectric sensor | |
| CN201583673U (en) | Photoelectric transducer | |
| CN105044568B (en) | The fiber ultrasonic detecting system and detection method of self-adaptation type partial discharge of transformer | |
| CN105241796A (en) | Dust detection apparatus | |
| CN103354028B (en) | Intelligent testing height device and method based on infrared light curtain | |
| CN203037271U (en) | Intelligent background inhibition photoelectric sensor | |
| CN202815233U (en) | Gain stabilizing device used for detector system | |
| CN103424185B (en) | The detection system of automatic error correction and method | |
| CN203135890U (en) | Light receiver | |
| CN103940707A (en) | Method and device for counting insoluble particles | |
| CN103674241B (en) | A kind of photosensitive circuit detecting photosensor signal | |
| CN110274687A (en) | Light intensity detection circuit and method | |
| CN103411630A (en) | Intelligent polarized reflection type photoelectric sensor | |
| CN102495019B (en) | Variable wavelength gas infrared sensor | |
| CN208705484U (en) | A kind of geophone signal conditioning circuit | |
| CN211087036U (en) | Constant-current power supply board card | |
| CN203745082U (en) | Photosensitive circuit for detecting photosensitive signals | |
| CN202938830U (en) | Intelligent polarized reflection-type photoelectric sensor | |
| CN104639257A (en) | Anti-interference circuit applied to light receiver | |
| CN103411634A (en) | Intelligent background suppression photoelectric sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130703 Effective date of abandoning: 20160810 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |