CN103353327B - A kind of divergence type photoelectric eye be removably installed - Google Patents
A kind of divergence type photoelectric eye be removably installed Download PDFInfo
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- CN103353327B CN103353327B CN201310281898.XA CN201310281898A CN103353327B CN 103353327 B CN103353327 B CN 103353327B CN 201310281898 A CN201310281898 A CN 201310281898A CN 103353327 B CN103353327 B CN 103353327B
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Abstract
The invention discloses a kind of divergence type photoelectric eye be removably installed, it is for measuring thing position and liquid level, comprise optical detecting head and signal processing unit, described optical detecting head is connected locking or the released state that also can judge described optical detecting head and signal processing unit with described signal processing unit is separable, and described signal processing unit comprises light emission module, Optical Receivers, signal processing module and signal output module; Described light signal turns back to described Optical Receivers after determinand change optical path, described light signal is sent to described signal processing module by described Optical Receivers, and described signal processing module is outputed signal described optical signal analysis process and sends to described signal output module to export described output signal.The present invention is without the need to changing the state of determinand and carrying out the output of multiple analog alerting signal; Simultaneously the present invention can judge the locking of optical detecting head and described signal processing unit or be separated.
Description
Technical field
The present invention relates to photoelectric control field, particularly the separated light controller for electric consumption installed of a kind of separated type.
Background technology
As shown in Figure 1, it comprises an optical transmitting set (13), an optical receiving set (14), a signal processing unit (15), a signal output apparatus (16) to existing optoelectronic switch measuring equipment operating principle.
When object under test do not exist occur with object under test time, can present two kinds of receive statuss of not sharing the same light, one is that optical receiving set receives signal, or does not receive signal.After signal transacting, the conversion of this signal can by photoelectricity measuring equipment as a switchgear, is used for controlling the equipment of other rear end.
Above-mentioned known techniques in the ordinary course of things; correct output measures that determinand is actual to be occurred or non-existent state only; but this circuit has a shortcoming; when after measuring equipment installation; user can think the test first carrying out system usually; what now actually must change determinand goes out present condition; just can carry out the test of total system; but in the occasion of practical application; whether really not so the appearance controlling determinand is easy and convenient; may need consuming time very of a specified duration, even may need to be depleted to material to be measured, so all will increase set-up time and Material Cost.
Current existing technology U.S.Pat.No.4,201,914 and U.S.Pat.No.4,134,022 only can carry out analog alarm in a bucket groove high position; And at U.S.Pat.No.4, in 354,180, as Fig. 2, although high-low-position can export alarm, the method adopted is the signal that will sense, no matter be high-order or low level, all use the electric signal of a state, recycle this signal and carry out alarm output, this mode shortcoming is that System Discrimination degree is poor, and only can be used in known solution, if, may misoperation be there is in solution during solution nonsystematic design to be measured.
The function that general photoelectricity measuring equipment exports except adding emulation alarm by this creation, can by various external trigger, alarm exports high-order (HighAlarm), low level (LowAlarm), the high-order alarm such as (HighHighAlarm), low level (LowLowAlarm) exports, and is convenient to user's operation and tests with system attachment.Optoelectronic switch measuring equipment is added time delay output function by the present invention simultaneously, user can be made to emulate the actual signal delaying state of determinand, facilitate in-site installation tester, after optoelectronic switch that is virtually reality like reality touches material, signal is sent to the sequential response of control system.
Summary of the invention
In order to overcome the defect of prior art, the invention provides a kind of divergence type photoelectric eye be removably installed, it is for measuring thing position and liquid level, comprise optical detecting head and signal processing unit, described optical detecting head is connected with described signal processing unit is separable, and described signal processing unit comprises light emission module, Optical Receivers, signal processing module and signal output module;
Described light emission module sends light signal, when there is no determinand, light signal changes optical path by described optical detecting head and feeds back in Optical Receivers, exist if any determinand, determinand and optical detecting head are to not having optical return signal after the change of optical path in Optical Receivers;
Described light signal is sent to described signal processing module by described Optical Receivers, described signal processing module is outputed signal described optical signal analysis process and described output signal is sent to described signal output module, and described signal output module exports described output signal.
Preferably, described light emission module comprises a light source, optical transmitting set and adjustable resistance, and described light source is produced light signal and launched by optical transmitting set, and described adjustable resistance is for regulating the luminous intensity of described light signal.
Preferably, described light source comprises LED and Ne lamp, and described optical transmitting set comprises LaserDiode.
Preferably, described light signal is continuous light signal or pulsed optical signals.
Preferably, described Optical Receivers is the one in photoresistance, optical diode, photistor, CCD, CMOS.
Preferably, be provided with light changing device between described light emission module and Optical Receivers, described smooth changing device is for regulating the luminous intensity of light emission module, and described available light changing device comprises Photo Interrupter, frequency multiplier, grating, image intensifer.
Preferably, described signal processing module is for completing the process to light signal, and described process comprises filtering to light signal, amplification, squelch.
Preferably, described optical detecting head is quartzy material or macromolecule material.
Preferably, described signal output module also comprises a time delay unit, and described time delay unit is for emulating the residual time delay of material.
Preferably, described photoelectric eye also comprises a locking plug assembly and locking shell fragment, judge that the method for the connection status of described optical detecting head and signal processing unit is: described locking plug assembly is locking or in detachment process, to move relative to the position of described locking shell fragment according to described locking plug assembly and cause the switch change of described locking shell fragment judge the locking of optical detecting head and signal processing unit or be separated.
Preferably, described photoelectric eye also comprises an optics hole, judge that the method for the connection status of described optical detecting head and signal processing unit is: lock plug assembly in locking/detachment process, cause optics hole to be positioned at covering of optical path between light emission module with Optical Receivers or by the locking that judges divergence type photoelectric eye or be separated according to described optics hole along with the position of locking plug assembly is moved.
Preferably, described photoelectric eye also comprises one by appointing, trip spiral grooves version and light modulation hole version, judge that the method for the connection status of described optical detecting head and signal processing unit is: described by appoint have a rotational motion relative to described trip spiral grooves version time, judge the locking of divergence type photoelectric eye according to light modulation hole version modulation light emission module with the optical path luminous flux between Optical Receivers or be separated.
Compared with prior art, beneficial effect of the present invention is as follows:
The present invention is without the need to changing the state of determinand and carrying out the output of multiple analog alerting signal; Simultaneously the present invention can judge the locking of optical detecting head and described signal processing unit or be separated.
Certainly, implement arbitrary product of the present invention might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of existing optoelectronic switch;
Fig. 2 is the functional block diagram of the optoelectronic switch of existing exportable analog alarm;
Fig. 3 is the functional block diagram of the embodiment of the present invention 1;
Fig. 4 is the simulation testing module functional block diagram in the embodiment of the present invention 1.
Embodiment
The invention provides a kind of divergence type photoelectric eye be removably installed, it is for measuring thing position and liquid level, it comprises optical detecting head and signal processing unit, described optical detecting head is connected locking or the released state that also can judge described optical detecting head and signal processing unit with described signal processing unit is separable, and described signal processing unit comprises light emission module, Optical Receivers, signal processing module and signal output module;
Described light emission module sends light signal, and when not having determinand, light signal can feed back in Optical Receivers, exists, will not have optical return signal in Optical Receivers if any determinand;
Described light signal turns back to described Optical Receivers after determinand and optical detecting head change optical path, described light signal is sent to described signal processing module by described Optical Receivers, described signal processing module is outputed signal described optical signal analysis process and described output signal is sent to described signal output module, and described signal output module exports described output signal.
Test substance of the present invention can be liquid, solid, solid-liquid mixing etc.
Embodiment 1
Be illustrated in figure 3 one embodiment of the invention, wherein said signal processing unit comprises light emission module 13, Optical Receivers 14, signal processing module 15, and an output circuit module 16.Above-mentioned light emission module 13 launches light signal 4, and light source can pass through a smooth changing device 7, and can change the characteristics such as the intensity of light, phase place, luminous field pattern, when when not having determinand 12, light signal 5 can feed back to Optical Receivers 14; Otherwise, light signal will do not had to get back to Optical Receivers 14.The signal of Optical Receivers 14 can be delivered to signal processing module 15, after signal transacting is complete, can by simulation test unit 17, with reference to figure 4, wherein comprise an additional trigger pip 18 and can control a change-over switch 22, change-over switch can be single-pole double-throw (SPDT) (SinglePoleDoubleThrow, be called for short SPDT) switch, during normality, the signal of signal processing module 15 can directly pass in signal output module, but when an additional trigger pip 18 controls after a change-over switch 22 switches, signal will pass through a reverser 21, no matter therefore be originally high signal or low level signal, all can pass through simulation test unit to switch, reach the function that emulation alarm exports, and the signal level of optical measurement system can not be had influence on completely, the alerting signal that emulation warning exports comprises alerting signal and comprises high signal, low level signal, high high signal, low low level signal.
A signal processing module 15, optical signalling is done various modulation process, comprise various known filtering (Filtering), amplify (Amplifying), squelch (NoiseReduction) etc., signal processing module 15 also can carry out other modulation process, and the present invention does not limit.
Wherein optical detecting head is generally quartzy head (QuartzHead) or macromolecular material formed, for reflecting optical path, reflecting; Light emission module 13 and Optical Receivers 14, its optical wavelength can opereating specification can be UV light, visible ray or IR light at 200nm-3000nm.
Light emission module, can be the wideband spectrum light sources such as known LED, Ne lamp, also can adopt the narrow frequency spectrum light source comprising LaserDiode; Light emission module, its operation light source is continuous light (Continuous) also can be pulsed light (Pulse); The present invention selects not to be limited for the power supply of light emission module 13, and the present embodiment only several conventional light source of tool is described.
Optical Receivers 14 can be the photosensory assembly such as known photoresistance, optical diode, photistor, CCD, CMOS;
A light changing device can be comprised further in optical path between the light emission module 13 that signal processing unit provides and Optical Receivers 14, modulation optical signalling enters the signal intensity of light emission module 13, above-mentioned light changing device, it can be PinHole (pin hole) Slot (slit) Photo Interrupter, Etalon (frequency multiplier), Grating (grating), Amplifier (image intensifer) etc.;
Signal output module, can comprise a time delay device further, the time delay that emulation material is residual.
Embody rule example
A divergence type photoelectric eye system architecture, be applied to storage tank management and control purposes with the circulation system of periphery, the invention is characterized in, systemic circulation detecting actuator (motor) power, object under test level, time response, judge as operation, and control the switching of actuator (motor) power, the replacement of output switch state, system and time delay to export, reach the object that system feedback controls.This system and device can be applicable to warehouse management, the circulation system controls purposes, and its composition comprises
The display module of more than one group; Normally LED light number can be have the cresset of flicker or numeric character to show different state of a controls;
The time delay of more than one group; The ordinal response of whole control system is controlled by the time delay determined in advance;
The schedule time response of more than one group, usually by the reaction action demand of user's define system, needs to make response in how many time ranges;
The output switch state of more than one group; The control signal of system, outputs to relay usually, work system
The switching of system or protecting control;
Actuator (motor) power detecting of more than one group; The photoelectric eye system circuit be separated has the judgement that actuator (motor) power detecting controls as feedback;
The object under test level detecting of more than one group; The photoelectric eye system circuit be separated has the judgement that the detecting of object under test level controls as feedback;
Actuator (motor) power of more than one group switches; The photoelectric eye system circuit be separated exports and controls, On/Off can be switched to actuator (motor) power or with the power input of PWM modulation detent.
Photoelectric eye provided by the invention also comprises a locking plug assembly and locking shell fragment, judge that described optical detecting head and the connection status of signal processing unit are the method being separated or locking and are: described locking plug assembly is locking or in detachment process, to move relative to the position of described locking shell fragment according to described locking plug assembly and cause the switch change of described locking shell fragment judge the locking of optical detecting head and signal processing unit or be separated;
Described photoelectric eye also comprises an optics hole, judge that the method for the connection status of described optical detecting head and signal processing unit is: lock plug assembly in locking/detachment process, cause optics hole to be positioned at covering of optical path between light emission module with Optical Receivers or by the locking that judges divergence type photoelectric eye or be separated according to described optics hole along with the position of locking plug assembly is moved;
Described photoelectric eye also comprises one by appointing, trip spiral grooves version and light modulation hole version, judge that the method for the connection status of described optical detecting head and signal processing unit is: described by appoint have a rotational motion relative to described trip spiral grooves version time, judge the locking of divergence type photoelectric eye according to light modulation hole version modulation light emission module with the optical path luminous flux between Optical Receivers or be separated.
The disclosed preferred embodiment of the present invention just sets forth the present invention for helping above.Preferred embodiment does not have all details of detailed descriptionthe, does not limit the embodiment that this invention is only described yet.Obviously, according to the content of this instructions, can make many modifications and variations.This instructions is chosen and is specifically described these embodiments, is to explain principle of the present invention and practical application better, thus makes art technician understand well and to utilize the present invention.The present invention is only subject to the restriction of claims and four corner and equivalent.
Claims (13)
1. the divergence type photoelectric eye be removably installed, it is for measuring thing position and liquid level, it is characterized in that, comprise optical detecting head and signal processing unit, described optical detecting head is connected with described signal processing unit is separable, and described signal processing unit comprises light emission module, Optical Receivers, signal processing module and signal output module;
Described light emission module sends light signal, when there is no determinand, light signal changes optical path by described optical detecting head and feeds back in Optical Receivers, exist if any determinand, determinand and optical detecting head are to not having optical return signal after the change of optical path in Optical Receivers;
Described light signal is sent to described signal processing module by described Optical Receivers, described signal processing module is outputed signal described optical signal analysis process and described output signal is sent to described signal output module, and described signal output module exports described output signal;
Described signal output module also comprises a time delay unit, and described time delay unit is for emulating the residual time delay of material.
2. the divergence type photoelectric eye be removably installed as claimed in claim 1, it is characterized in that, described light emission module comprises a light source, optical transmitting set and adjustable resistance, described light source is produced light signal and is launched by optical transmitting set, and described adjustable resistance is for regulating the luminous intensity of described light signal.
3. the divergence type photoelectric eye be removably installed as claimed in claim 2, is characterized in that, described light source comprises LED and Ne lamp, and described optical transmitting set comprises LaserDiode.
4. the divergence type photoelectric eye be removably installed as claimed in claim 3, is characterized in that, described light signal is continuous light signal or pulsed optical signals.
5. the divergence type photoelectric eye be removably installed as claimed in claim 1, is characterized in that, described Optical Receivers is the one in photoresistance, optical diode, photistor, CCD, CMOS.
6. the divergence type photoelectric eye be removably installed as claimed in claim 1, it is characterized in that, light changing device is provided with between described light emission module and Optical Receivers, described smooth changing device is for regulating the luminous intensity of light emission module, and described available light changing device comprises Photo Interrupter, frequency multiplier, grating, image intensifer.
7. the divergence type photoelectric eye be removably installed as claimed in claim 1, is characterized in that, described signal processing module is for completing the process to light signal, and described process comprises filtering to light signal, amplification, squelch.
8. the divergence type photoelectric eye be removably installed as claimed in claim 1, is characterized in that, described optical detecting head is quartzy material or macromolecule material.
9. the divergence type photoelectric eye be removably installed as claimed in claim 1, it is characterized in that, described photoelectric eye also comprises a locking plug assembly and locking shell fragment, judge that the method for the connection status of described optical detecting head and signal processing unit is: described locking plug assembly is locking or in detachment process, to move relative to the position of described locking shell fragment according to described locking plug assembly and cause the switch change of described locking shell fragment judge the locking of optical detecting head and signal processing unit or be separated.
10. the divergence type photoelectric eye be removably installed as claimed in claim 9, it is characterized in that, it is characterized in that, described photoelectric eye also comprises an optics hole, judge that the method for the connection status of described optical detecting head and signal processing unit is: lock plug assembly in locking/detachment process, cause optics hole to be positioned at covering of optical path between light emission module with Optical Receivers or by the locking that judges divergence type photoelectric eye or be separated according to described optics hole along with the position of locking plug assembly is moved.
11. divergence type photoelectric eyies be removably installed as described in claim 9 or 10, it is characterized in that, it is characterized in that, described photoelectric eye also comprises one by appointing, trip spiral grooves version and light modulation hole version, judge that the method for the connection status of described optical detecting head and signal processing unit is: described by appoint have a rotational motion relative to described trip spiral grooves version time, judge the locking of divergence type photoelectric eye according to light modulation hole version modulation light emission module with the optical path luminous flux between Optical Receivers or be separated.
The 12. divergence type photoelectric eyies be removably installed as claimed in claim 1, it is characterized in that, also comprise a simulation test unit, described simulation test unit comprises trigger pip sending module, change-over switch and phase inverter, when described trigger module sends a trigger pip, trigger pip controls the switching of change-over switch, and the electric signal after signal processing unit processes is sent to signal output unit by phase inverter, and described signal output unit exports analog alarm signal; When described trigger module does not send trigger pip, the electric signal after process is directly sent to described signal output unit without phase inverter by signal processing unit.
The 13. divergence type photoelectric eyies be removably installed as claimed in claim 12, is characterized in that, described alerting signal comprises high signal, low level signal, high high signal, low low level signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310281898.XA CN103353327B (en) | 2013-07-05 | 2013-07-05 | A kind of divergence type photoelectric eye be removably installed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310281898.XA CN103353327B (en) | 2013-07-05 | 2013-07-05 | A kind of divergence type photoelectric eye be removably installed |
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| CN103353327A CN103353327A (en) | 2013-10-16 |
| CN103353327B true CN103353327B (en) | 2015-11-18 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4134022A (en) * | 1976-09-03 | 1979-01-09 | Honeywell Inc. | Frequency sensitive level detecting apparatus |
| US4354180A (en) * | 1980-12-19 | 1982-10-12 | Genelco, Inc. | Electro-optical liquid level sensor |
| CN2935406Y (en) * | 2006-06-28 | 2007-08-15 | 潘晶奇 | Oil-level meter remote indicator |
| CN202794894U (en) * | 2012-07-04 | 2013-03-13 | 黄正宇 | Multi-parameter sensing system integrated chip |
-
2013
- 2013-07-05 CN CN201310281898.XA patent/CN103353327B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4134022A (en) * | 1976-09-03 | 1979-01-09 | Honeywell Inc. | Frequency sensitive level detecting apparatus |
| US4354180A (en) * | 1980-12-19 | 1982-10-12 | Genelco, Inc. | Electro-optical liquid level sensor |
| CN2935406Y (en) * | 2006-06-28 | 2007-08-15 | 潘晶奇 | Oil-level meter remote indicator |
| CN202794894U (en) * | 2012-07-04 | 2013-03-13 | 黄正宇 | Multi-parameter sensing system integrated chip |
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| CN103353327A (en) | 2013-10-16 |
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