CN202350726U - Positioning system - Google Patents
Positioning system Download PDFInfo
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- CN202350726U CN202350726U CN2011205256209U CN201120525620U CN202350726U CN 202350726 U CN202350726 U CN 202350726U CN 2011205256209 U CN2011205256209 U CN 2011205256209U CN 201120525620 U CN201120525620 U CN 201120525620U CN 202350726 U CN202350726 U CN 202350726U
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- rectification circuit
- contact
- moving object
- signal
- photoisolator
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Abstract
The embodiment of the utility model discloses a positioning system for a moving object. The positioning system comprises a detector, a rectifying circuit, an optoelectronic isolator and an amplifying and shaping circuit, wherein the detector is used for sending a first in-position signal to the rectifying circuit through a first wire when detecting that the moving object arrives at a specified position; the rectifying circuit is provided with a first end and a second end; the first end is connected with the first wire; the second end is connected with an input end of the optoelectronic isolator; an output end of the optoelectronic isolator is connected with an input end of the amplifying and shaping circuit; and the first in-position signal is input into the optoelectronic isolator through the rectifying circuit and converted into a second in-position signal by the optoelectronic isolator, and the second in-position signal is output to the outside by the amplifying and shaping circuit. The traditional relay is replaced by a circuit system with the optoelectronic isolator, so that the positioning system has long service life and is noiseless. In addition, a flexible contact device is used, so that positioning system has the advantages of long service life, high adaptability and the like.
Description
Technical field
The utility model relates to detection range, relates in particular to a kind of positioning system.
Background technology
In commercial production, usually need a cover positioning system to judge whether moving object arrives assigned address.For example in field of metallurgy; After molten steel is cast into long strand by conticaster; Need be cut to a section a section of specified length with flame cutting machine, just need this moment a cover positioning system judge whether the head of strand reaches the position of satisfying the regulation Cutting Length.Normally following situation: on strand direction of motion, the end of probe of positioning system is preceding, cutting machine after, the distance that the two is certain at interval, this distance generally is the Cutting Length of requirement.When strand travelled forward on roller-way, the end of probe of certain moment positioning system detected the strand head and has reached its position, and positioning system is just sent the signal that puts in place to control system immediately, removed to cut strand thereby make control system start cutting machine.After this, cutting machine will clamp strand and on one side along with the strand motion is carried out transverse cuts to strand on one side, strand is downcut specified length one section.Then cutting machine can be got back to original position again, waits for cutting next time.Continuation campaign along with the residue strand; The head of its new generation can arrive the position at the place, test side of positioning system again ... so repeatedly; Through " putting in place → signal → cut " circulation repeatedly, a final very long strand is cut into the short base of multistage specified length.
In the prior art; After detecting moving object and putting in place; The test side generally can produce an internal signal in the inside of positioning system earlier, but this signal does not generally satisfy the requirement of output owing to reasons such as power, stability; Therefore generally also comprise a signal processing unit in the existing positioning system, outwards output again after internal signal is handled.A kind of existing scheme be with relay as this signal processing unit, after the test side detected moving object and puts in place, it is electric that the internal signal of its generation gets relay, and then make relay contact connect control system, thereby produced the final signal that puts in place.The inventor finds in realizing the utility model process, and the relay in this scheme is because folding that can be frequent in its course of work, thus be easy to damage, and also the noise of the continuous folding generation of relay also can be bothered operating personnel.
In addition; The test side of positioning system generally is divided into two kinds of Mechanical Contact formula and non-contact types in the prior art, and common Mechanical Contact formula test side is a limit switch, or claims travel switch; Simple cheap; But,, and receive the restriction of testee profile easily so its life-span is shorter because be to locate by Mechanical Contact; And touchless, like the shooting length measuring device, price general charged is high, and can't adapt to rugged surroundings such as many dirt of high temperature.
Summary of the invention
The technical matters that the utility model embodiment will solve is: the problem that the signal processing unit of positioning system is perishable.
The embodiment of the utility model provides a kind of positioning system, is used for moving object, comprising: detecting device, rectification circuit, photoisolator and amplification and rectification circuit, wherein
Said detecting device is used for when detecting said moving object and arrive assigned address, sends first signal that puts in place through first lead to said rectification circuit;
Said rectification circuit has first end and second end, and said first end links to each other with said first lead, said second end links to each other with the input end of said photoisolator, and the output terminal of said photoisolator links to each other with the input end of said amplification and rectification circuit;
Said first signal that puts in place is input to said photoisolator through said rectification circuit, and is converted into second signal that puts in place by said photoisolator and export to the external world through said amplification and rectification circuit.
Preferably, said moving object has the head of conduction, the head ground connection of said conduction; Said rectification circuit also has the 3rd end, said the 3rd end ground connection;
Said detecting device specifically comprises contact and contact carrier; Said contact is charged; And link to each other with first end of said rectification circuit through said first lead; And said contact places on the said contact carrier; So that said contact can touch the head of said conduction in said moving object motion process, make the head, the earth, said rectification circuit of said contact, said conduction and said first lead constitute the loop and in said loop, produce electric current, thereby send first signal that puts in place to said rectification circuit.
Preferably, said contact carrier specifically comprises: rope form flexible body and bracing frame, and an end of said rope form flexible body is fixed on the bracing frame, the other end is that free end is sagging naturally, and said contact is fixed on the said free end of said rope form flexible body.
Preferably, said rope form flexible body specifically comprises: metal bracelet or electric wire.
Preferably, said rectification circuit also has the 4th end, and said the 4th end links to each other with extraneous weak alternating-current power supply, and said weak alternating-current power supply makes said contact have weak alternating current voltage through said rectification circuit and said first lead, so that said contact is charged.
Preferably, said rectification circuit is specially: bridge rectifier circuit.
Preferably, said moving object is specially strand, and said strand moves on roller-way, said roller-way ground connection.
The Circuits System that the utility model utilization has photoelectric isolating device replaces conventional means of relay, makes that the signal element life-span of positioning system is longer, and does not have any noise.In addition; The utility model has also used flexible contact device in the detecting unit of positioning system; Not only do not receive the influence of testee profile, can also adapt to rugged surroundings such as the many dirt of high temperature, have simple and reliable, the life-span is long, cost is low and adaptable advantage.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the connection synoptic diagram of the utility model embodiment positioning system;
Fig. 2 is the synoptic diagram of detecting device among the utility model embodiment;
Fig. 3 is the signal transmission synoptic diagram that puts in place among the utility model embodiment.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the connection synoptic diagram of the utility model embodiment positioning system, is used for moving object, comprising: detecting device 1, rectification circuit 2, photoisolator 3 and amplification and rectification circuit 4.
Said detecting device 1 is used for when detecting said moving object and arrive assigned address, sends first signal that puts in place through first lead 13 to said rectification circuit 2.
Said rectification circuit 2 has first end and second end; Said first end links to each other with said first lead 13, said second end links to each other with the input end of said photoisolator 3, and the output terminal of said photoisolator 3 links to each other with the input end of said amplification and rectification circuit 4.
Preferably, first signal that puts in place is a current signal in the present embodiment, specifically is the current signal through moving object and detecting device 1 formation current return being produced when the touching.Need in the present embodiment in advance moving object to be linked to each other with rectification circuit 2, method is following: said moving object has the head of conduction, the head ground connection of said conduction; Rectification circuit 2 has the 3rd end, and said the 3rd end is ground connection also.It is understandable that, be not the head of moving object if prefer the position of position, but corresponding adjustment then can be made in positions such as the centre of moving object or afterbody, makes the position conduction and the ground connection such as centre or afterbody of moving object.In the present embodiment, moving object is specially strand 5, and said strand 5 moves on roller-way, said roller-way ground connection.Because roller-way and strand 5 all are conductors, so roller-way ground connection also just is equivalent to strand 5 ground connection.It is understandable that, in other embodiment of the utility model, can also rectification circuit linked to each other in advance with moving object through other modes, to constitute the basis of touching current return, for example rectification circuit and roller-way be all earth-free, but directly link to each other with lead.
Fig. 2 is the synoptic diagram of detecting device 1 among the utility model embodiment.Preferably, said detecting device 1 specifically comprises contact 11 and contact carrier; Said contact 11 is charged; And link to each other with first end of said rectification circuit 2 through said first lead 13; And said contact 11 places on the said contact carrier; So that said contact 11 can touch the head of said conduction in said moving object motion process, make head, the earth, said rectification circuit 2 and said first lead, the 13 formation loops of said contact 11, said conduction and in said loop, produce electric current, thereby send first signal that puts in place to said rectification circuit 2.
Preferably; Contact carrier 12 in the detecting device 1 can comprise rope form flexible body 121 and bracing frame; One end of said rope form flexible body 121 is fixed on the bracing frame, the other end is that free end is sagging naturally, and said contact 11 is fixed on the said free end of said rope form flexible body.In the present embodiment, bracing frame specifically comprises support 123 and insulator 122.Insulator 122 is fixed on the support 123; Rope form flexible body 121 hangs on the insulator 122 also sagging naturally; Contact 11 is fixed on the free end of rope form flexible body 121; The one end process rope form flexible body 121 of first lead 13 links to each other with contact 11, the other end links to each other with rectification circuit 2, referring to shown in Figure 2.Rope form flexible body 121 so long as flexible rope form object get final product.In the present embodiment, rope form flexible body 121 can be conductors such as metal bracelet or electric wire, and first lead 13 directly linked to each other with metal bracelet or electric wire and got final product this moment.In other embodiment of the utility model, rope form flexible body 121 can also be an insulation ropes, and first lead will link to each other to extending below with contact 11 along insulation ropes this moment.It is understandable that in the utility model, when adopting conductors such as metal bracelet or electric wire to use as rope form flexible body 121, can also omit contact 11, the free end that is about to metal bracelet or electric wire directly uses as contact 11.
In the present embodiment; Detecting device 1 is like this work: in advance support 123 is fixed on by the roller-way; Rope form flexible body 121 is dangled on roller-way, when strand 5 from roller-way draw near through the time, certain constantly its head can touch the terminal contact 11 of rope form flexible body 121; Thereby the loop that 11, first lead 13 that makes contact, rectification circuit 2, the earth, strand 5 are constituted; Produce several milliamperes of electric currents, promptly produced first positioning signal, represent the head of strand 5 this moment to reach the position that contact 11 belongs to.
Fig. 3 is the signal transmission synoptic diagram that puts in place in the present embodiment.First end of rectification circuit 2 links to each other with said first lead 13, second end links to each other with the input end of said photoisolator 3, and the output terminal of said photoisolator 3 links to each other with the input end of said amplification and rectification circuit 4; Said first signal that puts in place is input to said photoisolator 3 through said rectification circuit 2, and is converted into second signal that puts in place by said photoisolator 3 and export to the external world through said amplification and rectification circuit 4.
Preferably; Rectification circuit 2 also has the 4th end; Said the 4th end links to each other with extraneous weak alternating-current power supply (not drawing among Fig. 1), and said weak alternating-current power supply makes said contact 11 have weak alternating current voltage through said rectification circuit 2 and said first lead 13, so that said contact 11 is charged.In the present embodiment, contact 11 has the interchange safe voltage of 36VAC.When connecting external weak AC power, a kind of flow direction of electric current can be power supply-rectification circuit-first lead-contact-strand-roller-way-the earth-rectification circuit-power supply during touching.It is understandable that, in other embodiment of the utility model, can also make contact 11 charged, for example be with direct current through other kinds method.
The effect one of rectification circuit 2 is to convert ac signal to dc signal, the 2nd, electric current is limited within several milliamperes.The input end of rectification circuit 2 promptly first end through first lead 13 link to each other with contact 11, output terminal is that second end links to each other with the input end of photoisolator 3.Preferably, rectification circuit 2 can be specially bridge rectifier circuit.
The output terminal of photoisolator 3 links to each other with the input end of amplification and rectification circuit 4.Photoisolator is also claimed photoelectrical coupler, photo-coupler, and its principle is: the electric signal of input drives its light emitting diode; Make it to send the light of certain wavelength, received and the generation photocurrent by the photo-detector of its other end, through the conversion of electricity-light-electricity; Make input end and output terminal realize electrical isolation fully, thereby have good electrical isolation capabilities and antijamming capability, compare with relay; It is more stable to work, longer service life, and noiselessness pollutes.
Amplification and rectification circuit 4 for example exports i.e. second put in place the signal amplification, shaping and to external world's output of the electric signal of photoelectric isolating device 3 output to control system.After the rectification circuit 2 in the present embodiment, photoisolator 3 and amplification and rectification circuit 4 processing, control system can obtain stable switching signal amount.
At last, control system utilizes the second signal command cutting machine that puts in place that strand 5 is cut, thereby obtains one section short base.After this, the new head of strand 5 can be run into contact 11 again, and cutting machine can obtain order again strand 5 is cut, so circulation, thus strand 5 cuts into a section short base the most at last
In addition, in the present embodiment, moving object is that testee is the strand 5 that on roller-way, moves.In other embodiment of the utility model, testee can also be other objects, gets final product so long as guarantee the position conduction that itself and contact 11 are touched.For example the utility model spacing detection in terminal that also is used to drive a vehicle, this moment, testee was driving (joining through track and ground), when the head of driving a vehicle is run into contact 11, sent stop sign.For example the utility model can also be used for the detection of sump discharge level again, and this moment, testee was a well water, adopts the positioning system in two cover the utility model; Or one the cover positioning system but be with two contacts, then contact is all stretched in the well, and one of them contact is positioned at starting mode of pump position (being high water stage); Another contact is positioned at pump position of rest (being low-water level), and when water level in the well rose to the water pump high water stage, the contact at the water surface and high water stage place was connected; Send the starting mode of pump signal and give control system; Thereby start water pump (this moment, the low-water level conductive contact also flooded in water), reduce to low-water level when following when water level, the contact at low-water level place breaks away from the water surface; This moment, interlocking signal was removed, thereby made water pump stop pumping.
Need to prove; In this article; Relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint relation or the order that has any this reality between these entities or the operation.And; Term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability; Thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements; But also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Under the situation that do not having much more more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises said key element and also have other identical element.
The preferred embodiment that the above is merely the utility model is not the protection domain that is used to limit the utility model.Any modification of being done within all spirit and principles at the utility model, be equal to replacement, improvement etc., all be included in the protection domain of the utility model.
Claims (7)
1. a positioning system is characterized in that, is used for moving object, comprising: detecting device, rectification circuit, photoisolator and amplification and rectification circuit, wherein
Said detecting device is used for when detecting said moving object and arrive assigned address, sends first signal that puts in place through first lead to said rectification circuit;
Said rectification circuit has first end and second end, and said first end links to each other with said first lead, said second end links to each other with the input end of said photoisolator, and the output terminal of said photoisolator links to each other with the input end of said amplification and rectification circuit;
Said first signal that puts in place is input to said photoisolator through said rectification circuit, and is converted into second signal that puts in place by said photoisolator and export to the external world through said amplification and rectification circuit.
2. system according to claim 1 is characterized in that:
Said moving object has the head of conduction, the head ground connection of said conduction; Said rectification circuit also has the 3rd end, said the 3rd end ground connection;
Said detecting device specifically comprises contact and contact carrier; Said contact is charged; And link to each other with first end of said rectification circuit through said first lead; And said contact places on the said contact carrier; So that said contact can touch the head of said conduction in said moving object motion process, make the head, the earth, said rectification circuit of said contact, said conduction and said first lead constitute the loop and in said loop, produce electric current, thereby send first signal that puts in place to said rectification circuit.
3. system according to claim 2; It is characterized in that; Said contact carrier specifically comprises: rope form flexible body and bracing frame; One end of said rope form flexible body is fixed on the bracing frame, the other end is that free end is sagging naturally, and said contact is fixed on the said free end of said rope form flexible body.
4. system according to claim 3 is characterized in that, said rope form flexible body specifically comprises: metal bracelet or electric wire.
5. system according to claim 1; It is characterized in that; Said rectification circuit also has the 4th end; Said the 4th end links to each other with extraneous weak alternating-current power supply, and said weak alternating-current power supply makes said contact have weak alternating current voltage through said rectification circuit and said first lead, so that said contact is charged.
6. system according to claim 1 is characterized in that said rectification circuit is specially: bridge rectifier circuit.
7. system according to claim 1 is characterized in that said moving object is specially strand, and said strand moves on roller-way, said roller-way ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205256209U CN202350726U (en) | 2011-12-14 | 2011-12-14 | Positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205256209U CN202350726U (en) | 2011-12-14 | 2011-12-14 | Positioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202350726U true CN202350726U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205256209U Expired - Fee Related CN202350726U (en) | 2011-12-14 | 2011-12-14 | Positioning system |
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| CN (1) | CN202350726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167068A (en) * | 2017-04-26 | 2017-09-15 | 武汉天富海科技发展有限公司 | A kind of test system for obtaining motion body position |
-
2011
- 2011-12-14 CN CN2011205256209U patent/CN202350726U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167068A (en) * | 2017-04-26 | 2017-09-15 | 武汉天富海科技发展有限公司 | A kind of test system for obtaining motion body position |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20151214 |
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| EXPY | Termination of patent right or utility model |