CN100462154C - Object grid type tracking method applied on material sorting system and its tracking device - Google Patents
Object grid type tracking method applied on material sorting system and its tracking device Download PDFInfo
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- CN100462154C CN100462154C CNB2005100210941A CN200510021094A CN100462154C CN 100462154 C CN100462154 C CN 100462154C CN B2005100210941 A CNB2005100210941 A CN B2005100210941A CN 200510021094 A CN200510021094 A CN 200510021094A CN 100462154 C CN100462154 C CN 100462154C
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Abstract
The present invention discloses an article grid-type tracking method which can be used in article sorting system and its tracking device. In said article grid-type tracking method the grid-type article flow system has virtual grids on its rotating disk, every virtual grid represents a part of distance on the rotating disk. Said method utilizes the condition of that the grid is occupied by article and the information of grid correspondent to the article in data zone to track every detail of article, and utilizes the attribute parameter of the article to track and sort the article.
Description
Technical field
The present invention relates to a kind of grid type tracking and tracking means thereof of object, applicable to the tracking letter sorting of airdrome luggage.
Background technology
Logistics system uses the virtual window mode to come object is followed the tracks of mostly now, is each part object and distributes a virtual window mode to follow the tracks of.But the virtual window mode mainly exposes following deficiency and shortcoming in practice:
One, causes system effectiveness minimizing and space waste problem with the virtual window mode
Efficiency always is an important indicator of logistics Automated Sorting System, and this index has shown a processing capacity of logistics Automated Sorting System, i.e. system's object number that can sort per hour.And,, often show the inconsistency that each link is handled the object ability according to the influence on flow scheme design, mechanical link and the programmed algorithm with regard to most of logistics Automated Sorting Systems, so just caused the bottleneck of whole system.Thereby influenced overall system efficiency.In actual motion, because design on mechanical flow process and program tends to show inconsistency, make some can handle the more link of multicapacity originally, have to adapt to other links and reduce self processing capacity, and cause the waste of some resources.
In the legacy windows mode, a general object takies the situation that a window and object are positioned at the center of window, and this situation is considered to ideal.Can guarantee like this two between object spacing and help the accuracy that push arm pushes away object motion, so need control the opportunity that object injects the rotating disk window by program at inlet so that the position of control object in window.Among Fig. 7, general determine that with a certain distance from window point foremost as decanting point, as long as promptly have empty window and decanting point to arrive inlet, program is just carried out and injected action, object is put in the window of rotating disk and goes.In system's actual motion, when object arrives inlet, have only the decanting point of empty window on rotating disk also to arrive inlet just, at this moment, object just can not waited for and directly inject empty window on the rotating disk, other most of times, object must be waited at inlet and just injecting after the decanting point of empty window arrives, top it all off object arrives inlet and the decanting point of empty window is just crossed inlet, at this moment object will be waited for the time of a window, and then be injected into next window, will cause like this and annotate window wasting phenomenon on bottleneck that the population object carries and the rotating disk.For example: in the operational system of reality, be divided into 28 windows with traditional window technique on the rotating disk, but in the actual motion, because there is the inconsistency that cooperates in inlet with rotating disk in plant equipment and programming, make the window utilization rate very low, have only 14 windows can use (just having a greatly reduced quality than the efficient of design like this) simultaneously at most, this has just become the bottleneck place of the maximum of whole system.
Two, can not follow the tracks of each details of object with the virtual window mode.
Often follow the tracks of object with the virtual window mode, can only know in the virtual window on this conveyer belt has an object, but this mode more the tracking object of details whether some projections or sunk part are arranged.
Three, can not know the size of object with the virtual window mode.
Often follow the tracks of object with the virtual window mode, can only know in the virtual window on this conveyer belt has an object, but can not know the size cases of object.This has brought no small trouble for the back sorting arrangement.
Four, can not know the geometric center point of object with the virtual window mode
Divide in the notion at traditional virtual window, each window is put an object and with complicated algorithm comparatively, is calculated the skew of each object, could realize the tracking of object.But not only complicated on program with virtual window, and also difficult center of calculating object more accurately, so still can cause the only a few object to push away the not situation of gliding groove.
Five, the variation that can not adapt to external environment condition automatically with the virtual window mode remains correctly and go-on-go accurately
Because whole system is after operation a period of time, some wearing and tearing or distortion can take place in plant equipment, cause changes in external parameters.Adopt the virtual window mode to follow the tracks of object and can be difficult to adjust the variation that inner parameter adapts to external parameter automatically, make system stability and normal work.
Summary of the invention
The objective of the invention is to adopt the problem of virtual window item tracking mode in practice, a kind of grid type tracking and tracking means thereof of object is provided at existing object sorting system.In the grid type tracking of object, grid type logistics system object bogey is provided with dummy grid, each dummy grid is being represented the segment distance on the rotating disk, take the information of object in grid situation and the grid corresponding data zone by object, can follow the tracks of each details of object, grid situation in conjunction with object takies sorts with correct the object accurate tracking.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
A kind of object grid type tracking that is applied in the object sorting system is characterized in that:
A, dummy grid is set: with the detection means on the object bogey before the inlet is starting point, according to certain distance dummy grid is set continuously on the object bogey clockwise.So-called dummy grid is exactly the artificial many little grids of virtual division on the letter sorting rotating disk;
B, set up data queue: some grids of virtual division on the object bogey, its each grid all establishes data area corresponding with it in the Programmable Logic Controller PLC of logistics sorting equipment, calculate by Programmable Logic Controller PLC and to store the object property parameters into object and take in the pairing data area of grid, promptly in Programmable Logic Controller PLC, set up the operating position that whole object bogey is represented in a data formation;
C, pulse calculating and information trace: calculate object bogey physics rotation displacement by the rotary encoder that is installed on the object bogey, high-speed counter module among the Programmable Logic Controller PLC is calculated the umber of pulse that rotary encoder sends, make data among the Programmable Logic Controller PLC to row during with the rotation of object bogey, the change of the umber of pulse that rotary encoder sends and data among the corresponding mobile Programmable Logic Controller PLC are followed the tracks of row the data among the Programmable Logic Controller PLC of the dummy grid correspondence on the object bogey by the grid mode like this to row.
Dummy grid is virtual being divided on the rotating disk, the form of expression that its exists is exactly to establish data area corresponding with it among its pairing Programmable Logic Controller PLC, information in the data area of grid correspondence is corresponding the variation with the variation of grid, and the size of grid and the quantity of grid are decided by the computing capability of the Programmable Logic Controller PLC that each engineering project is selected for use.
The property parameters of described object comprises the pitch information between the slogan information, object geometric center dot position information, two articles of the size dimension of object, grid number that object takies, object, the detection information that these property parameters are obtained according to detection means by Programmable Logic Controller PLC, the velocity information of conveyer belt and read the bar code information that decoding apparatus reads and calculate.
The object bogey is the letter sorting rotating disk, or as the conveyer belt that sorts bogey, detection means is a photoelectric sensor, maybe can detect the detection means of luggage.
Described rotary encoder is a kind of device that calculates object bogey physics rotation displacement by the umber of pulse of sending, for example: rotary encoder sends the pulse 1CM that represented dial rotation, and the high-speed counter module of Programmable Logic Controller PLC receives 5 pulses 5CM that just represented dial rotation so.
A kind of object grid type tracking means that is applied in the object sorting system, comprise the man-machine interface layer that is used for man-machine communication and operation configuration interface, be used to control and Programmable Logic Controller PLC control and interface layer that interface communication is handled, the equipment and the electrical equipment layer that are used to detect luggage and carry out action is characterized in that:
Be arranged on the object bogey of equipment and electrical equipment layer and be provided with virtual grid clockwise according to certain distance; The object bogey is provided with the rotary encoder that calculates object bogey physics rotation displacement by the umber of pulse of sending;
Programmable Logic Controller PLC control and interface layer are provided with Programmable Logic Controller PLC equipment, and this equipment establishes and the corresponding data area of above-mentioned each grid;
Described equipment and electrical equipment layer also are provided with the decoding apparatus of reading of the bar code information that is used to read on the object bar code board; Be used to obtain the inlet detection means of the information that detects; Whether with trace information corresponding, the outlet detection means that the tracking of object is tested if being used for judge following the tracks of object;
Described man-machine interface layer comprises database server, supervisory control comuter.
Described equipment and electrical equipment layer also comprise conveyer belt, sorting equipment, chute, and described object bogey is for the letter sorting rotating disk or as the conveyer belt that sorts bogey, and sorting equipment is the letter sorting push arm.
Be starting point with the detection means on the object bogey before the inlet on the described object bogey, according to certain distance dummy grid is set continuously clockwise, calculate by Programmable Logic Controller PLC and to store the object property parameters into object and take in the pairing data area of grid, promptly in Programmable Logic Controller PLC, set up the operating position that whole object bogey is represented in a data formation.
The described decoding apparatus of reading is for reading the instrument of bar code information on the object bar code board, and described detection means is the detection means that photoelectric sensor maybe can detect luggage.
The described rotary encoder that is arranged on the object bogey calculates object bogey physics rotation displacement, high-speed counter module among the Programmable Logic Controller PLC is by calculating the umber of pulse that rotary encoder sends, make the change of data among the Programmable Logic Controller PLC umber of pulse that rotary encoder sends during with the rotation of object bogey to row and data among the corresponding mobile Programmable Logic Controller PLC to row, by the grid mode data among the Programmable Logic Controller PLC of the dummy grid correspondence on the object bogey are followed the tracks of row like this.
Dummy grid is virtual being divided on the rotating disk, the form of expression that its exists is exactly to establish data area corresponding with it among its pairing Programmable Logic Controller PLC, information in the data area of grid correspondence is corresponding the variation with the variation of grid, and the size of grid and the quantity of grid are decided by the computing capability of the Programmable Logic Controller PLC that each engineering project is selected for use.
The property parameters of described object comprises the pitch information between the slogan information, object geometric center dot position information, two articles of the size dimension of object, grid number that object takies, object, the detection information that these property parameters are obtained according to detection means by Programmable Logic Controller PLC, the velocity information of conveyer belt and read the bar code information that decoding apparatus reads and calculate.
Described rotary encoder is a kind of device that calculates object bogey physics rotation displacement by the umber of pulse of sending, for example: rotary encoder sends the pulse 1CM that represented dial rotation, and the high-speed counter module of Programmable Logic Controller PLC receives 5 pulses 5CM that just represented dial rotation so.This equipment is existing equipment.
The invention has the advantages that:
One, resolution system efficient reduces and the wasting space problem
The grid algorithm is that rotating disk is divided into wicket mode as much as possible, the concrete locus of representing object to take with several grids.Like this when object arrives inlet, because grid is enough little, so just there is the notion of decanting point.As shown in Figure 3, if have on the rotating disk enough inject the so empty grid of object can be very near coming, as long as guaranteed enough spacings (the concrete equipment operating index by each engineering project is determined) of two articles, the injection that just can allow the object of inlet not stop, so just solved object in the virtual window method and waited for the phenomenon of empty window, improved herein object by efficient and solve the phenomenon in waste rotating disk space at inlet.
Two, solved the problem that to follow the tracks of each details of object with the virtual window mode.
The detection information that Programmable Logic Controller PLC obtains by detection means, read yard information calculations of reading that decoding apparatus obtains, can know the grid number that object takies, the slogan information of object, the pitch information between two articles, by these information, can carry out the more accurate tracking of details to object.
Three, solved the problem that to know the size of object with the virtual window mode
The detection information that PLC obtains according to detection means, the velocity information of conveyer belt and read the bar code information that decoding apparatus reads and calculate the grid number that object takies can be judged the size of object, make sorting arrangement carry out correct letter sorting according to the size of object.Raster based method can record the size of object very easily.If object super large, overlength then can be cancelled the action of push arm easily on program like this, avoid some owing to the not enough standard of value machine Ka Bao that brings and the situation of damaging parcel.
And use grid can judge too near that whether two articles be separated by easily, thereby phenomenon such as Ka Bao or clip pack when causing the push arm action.Among Fig. 2, if we set the object normal separation is 3 grids,, represent that then two object spacings are too small if two object spacings are less than 3 grids so, take certain methods to handle this phenomenon, as: forbid that push arm pushes away this two articles or only postpones an object.
Four, solved the problem that to know the object geometric center point with the virtual window mode
According to the grid number that object takies, Programmable Logic Controller PLC can calculate the geometric center point of object, has avoided sorting equipment can not accurately sort the situation of object.
Five, adapt to the variation of external environment condition and remaining correctly and go-on-go accurately automatically.
Plant equipment such as object rotating disk owing to reasons such as wearing and tearing cause the variation of system's external parameter, push arm occurs and push away phenomenons such as inaccurate object in use for some time.Use the mode of dynamic wicket to follow the tracks of object, can pass through simple computation very easily, automatically carry out the change of program self parameter according to the variation of external parameter, make system externally under the situation of parameter change, can adapt to the variation of external environment condition automatically and can remain correct and go-on-go accurately.For example: write down the grid quantity that each circle passes through according to the photosignal that resets of rotating disk (being the signal that rotating disk whenever turns around and can provide by photoelectric sensor).Like this, if because external causes such as machinery change, the wicket quantity of each circle record also can change thereupon, according to the parameter of the corresponding adjustment push arm of the variation of window number, it can both be sorted forever accurately to object.
Six, follow the tracks of more accurately and more easy algorithm.
This notion of resolution ratio is arranged in many electronic products, that is to say the picture number that on same unit are, can show.Resolution ratio is high more, and our picture seen is accurate more fine and smooth more so.The same grid of dividing on rotating disk is more little, and it is just more accurate to follow the tracks of, and more can reflect the truth of object.The raster based method refinement rotating disk of trying one's best allow an object occupy a plurality of grids, thereby each part of accurate tracking object for the object of some irregular external forms, can have more information collection like this, and carry out flexible processing.
Description of drawings
For the purpose of illustration, will the present invention be described in further detail by the example in the accompanying drawing below.Described accompanying drawing comprises:
Fig. 1 follows the tracks of the theory structure schematic diagram of object for grid
Fig. 2 follows the tracks of the too small structural representation of spacing between two adjacent objects for grid
Fig. 3 follows the tracks of the structural representation of object for grid
Fig. 4 is the flowage structure schematic diagram of item tracking
Fig. 5 is the system hierarchy schematic diagram of logistics sorting equipment
Fig. 6 is a logistics system sorting equipment structural representation
Fig. 7 causes window space waste structural representation for the legacy windows mode
The specific embodiment
The present invention proposes a kind of object grid type tracking and tracking means that is applied in the object sorting system, to solve the problem that prior art exists.Its method step is as follows:
A, dummy grid is set: with the detection means on the object bogey before the inlet is starting point, according to certain distance dummy grid is set continuously on the object bogey clockwise.So-called dummy grid is exactly the artificial many little grids of virtual division on the letter sorting rotating disk;
B, set up data queue: some grids of virtual division on the object bogey, its each grid all establishes data area corresponding with it in the Programmable Logic Controller PLC of logistics sorting equipment, calculate by Programmable Logic Controller PLC and to store the object property parameters into object and take in the pairing data area of grid, promptly in Programmable Logic Controller PLC, set up the operating position that whole object bogey is represented in a data formation;
C, pulse calculating and information trace: calculate object bogey physics rotation displacement by the rotary encoder that is installed on the object bogey, high-speed counter module among the Programmable Logic Controller PLC is calculated the umber of pulse that rotary encoder sends, make data among the Programmable Logic Controller PLC to row during with the rotation of object bogey, the change of the umber of pulse that rotary encoder sends and data among the corresponding mobile Programmable Logic Controller PLC are followed the tracks of row the data among the Programmable Logic Controller PLC of the dummy grid correspondence on the object bogey by the grid mode like this to row.
Dummy grid is virtual being divided on the rotating disk, the form of expression that its exists is exactly to establish data area corresponding with it among its pairing Programmable Logic Controller PLC, information in the data area of grid correspondence is corresponding the variation with the variation of grid, and the size of grid and the quantity of grid are decided by the computing capability of the Programmable Logic Controller PLC that each engineering project is selected for use.
The property parameters of described object comprises the pitch information between the slogan information, object geometric center dot position information, two articles of the size dimension of object, grid number that object takies, object, the detection information that these property parameters are obtained according to detection means by Programmable Logic Controller PLC, the velocity information of conveyer belt and read the bar code information that decoding apparatus reads and calculate.
The object bogey is the letter sorting rotating disk, or as the conveyer belt that sorts bogey, detection means is photoelectric sensor (i.e. an optoelectronic switch among the figure), maybe can detect the detection means of luggage.Described rotary encoder is a kind of device that calculates object bogey physics rotation displacement by the umber of pulse of sending, for example: rotary encoder sends the pulse 1CM that represented dial rotation, and the high-speed counter module of Programmable Logic Controller PLC receives 5 pulses 5CM that just represented dial rotation so.
Among Fig. 1, the grid situation that on behalf of object, black grid take has also directly reflected the situation that object takes up room on the rotating disk.Take the information of object in grid situation and the grid by object, Programmable Logic Controller PLC can calculate slogan, the size of object, information such as spacing between geometric center point and two articles, the object of drawing a circle has taken 3 dummy grid, and it has just taken this 3 the pairing rotating disk of dummy grid spaces so.And all identify 1 in these 3 dummy grid, these marks are by the bar code information of reading on the bar code board that decoding apparatus reads this object, and and the data of database server relatively resolve and obtain, represent that this part object should be pushed into chute No. 1, object takies 3 grids, Programmable Logic Controller PLC calculates the geometric center point (geometric center point of this object is exactly that grid in the middle of 3 grids) of this part object, and doing mark on the grid of geometric center point, push arm pushes object according to the geometric center point mark of this object accurately by the calculating of Programmable Logic Controller PLC.
Among Fig. 2, the grid number is too small represents that then two adjacent object spacings are too small as taking between the two adjacent objects, setting the object normal separation is 3 grids, the two articles of being lived by circle among the figure, empty grid number between them has only 2 grids, littler than normal spacing, the situation that clip pack etc. is damaged object the time can appear in the sorting equipment letter sorting, takes to forbid that measure such as push arm action avoids the generation of some dangerous situations by Programmable Logic Controller PLC program.
Fig. 3 is the schematic diagram that grid is followed the tracks of object, has reacted each object among the figure and has taken the grid situation.The grid algorithm is that rotating disk is divided into virtual wicket mode as much as possible, the concrete locus of representing object to take with grid.Like this when object arrives inlet, because grid is enough little, so just there is the notion of decanting point.If there are enough objects to inject on the rotating disk, so empty grid can be very near coming, as long as between two articles enough spacings are arranged, the injection that just can allow the object of inlet not stop, so just solved object in the virtual window method and waited for the phenomenon of empty window, improved herein object by efficient and solve the phenomenon in waste rotating disk space at inlet.
Fig. 4 is the trace flow figure of object, its tracking step is: luggage arrives inlet, photoelectric sensor judges whether enough spaces are arranged on the rotating disk, if enough spaces are arranged, then luggage directly injects rotating disk, luggage is injected on the rotating disk by Programmable Logic Controller PLC again and calculates the grid number of determining that luggage takies, if there are not enough spaces, wait for that then rotating disk has enough spaces, luggage injects again, slogan information with object, the size information of object passes in the pairing Programmable Logic Controller plc data of each grid zone that object takies by interface communication and goes, the grid number that is taking by object, Programmable Logic Controller PLC calculates the geometric center point of this object, and doing mark on the grid of geometric center point, for example: this object takies 3 grids, then the calculating by Programmable Logic Controller PLC readily appreciates that the geometric center point of middle grid for this object, just can in the grid information of centre, do the geometric center dot information, size and the geometric center point of representing luggage with grid, take situation by grid, calculate and judge luggage whether super large or overlength by Programmable Logic Controller PLC, if do not have super large or overlength, take situation by grid, calculate and judge whether adjacent luggage compartment causes luggage compartment apart from too small because wiping is mechanically hung by Programmable Logic Controller PLC, if super large or overlength, then Programmable Logic Controller PLC control cancellation push arm action, if spacing is too small, then Programmable Logic Controller PLC control cancellation push arm action, otherwise, judge by confirming photoelectric sensor whether tracking luggage is consistent with trace information, if arrive when confirming photoelectric sensor, the whole grids of trace information and luggage overlap fully, then do not adjust trace information, keep parameter, the letter sorting push arm accurately carries out baggage sorting according to trace information, if arrive when confirming photoelectric sensor, trace information and luggage have the part grid to overlap, then calculate and adjust trace information by Programmable Logic Controller PLC, make it meet the parameter of true object, the letter sorting push arm accurately carries out the object letter sorting according to trace information again, if arrive when confirming photoelectric sensor, trace information and the true whole grids of object do not overlap, then photoelectric sensor is abandoned trace information, follow the tracks of failure, the action of Programmable Logic Controller PLC control cancellation push arm.
Among Fig. 5, the logistics sorting equipment is divided into three levels: man-machine interface layer, Programmable Logic Controller PLC control and interface layer, equipment and electrical equipment layer.The man-machine interface layer comprises database server, supervisory control comuter; Programmable Logic Controller PLC control network and interface layer comprise the bar code information that is used to read on the luggage bar code board, and are sent to the decoding apparatus of reading in the Programmable Logic Controller plc data zone, Programmable Logic Controller PLC equipment by interface communication; Equipment and electrical equipment layer comprise conveyer belt, letter sorting rotating disk (or device of other loaded objects), letter sorting push arm (or other sorting equipments), chute, photoelectric sensor or other detection means.
Fig. 6 is logistics system letter sorting part mechanical device schematic diagram, mainly by code-reading apparatus, inject mechanical device such as conveyer belt, letter sorting rotating disk (or other object bogeys), letter sorting push arm (or other sorting equipments), chute and photoswitc and detection means is formed, comprise upper strata control appliances such as database server, supervisory control comuter (man-machine interface), Programmable Logic Controller PLC in addition.Establish in the Programmable Logic Controller PLC equipment and the corresponding data area of each grid; Be starting point with the detection means on the object bogey before the inlet on the object bogey, be provided with virtual grid clockwise and calculate the rotary encoder of object bogey physics rotation displacement by the umber of pulse of sending according to certain distance, for example: 1CM is represented in pulse of rotary encoder, receives 5 pulses 5CM that represented dial rotation.Calculate by Programmable Logic Controller PLC and to store the object property parameters into object and take in the pairing data area of grid, promptly in Programmable Logic Controller PLC, set up the operating position that whole object bogey is represented in a data formation; High-speed counter module among the Programmable Logic Controller PLC is by calculating the umber of pulse that rotary encoder sends, make the change of data among the Programmable Logic Controller PLC umber of pulse that rotary encoder sends during with the rotation of object bogey to row and data among the corresponding mobile Programmable Logic Controller PLC to row, by the grid mode data among the Programmable Logic Controller PLC of the dummy grid correspondence on the object bogey are followed the tracks of row like this.Also be provided with reading decoding apparatus, being used to obtain the inlet detection means of the information that detects of the bar code information that is used to read on the object bar code board in this sorting equipment; Whether with trace information corresponding, the outlet detection means that the tracking of object is tested if being used for judge following the tracks of object.The property parameters of object comprises the pitch information between the slogan information, object geometric center dot position information, two articles of the size dimension of object, grid number that object takies, object, the detection information that these property parameters are obtained according to detection means by Programmable Logic Controller PLC, the velocity information of conveyer belt and read the bar code information that decoding apparatus reads and calculate.
Claims (7)
1. object grid type tracking that is applied in the object sorting system is characterized in that:
A, dummy grid is set: the inlet conveyer belt is injected into object on the object bogey from inlet; With the detection means on the object bogey before the inlet is starting point, according to certain distance dummy grid is set continuously on the object bogey clockwise; Described dummy grid is exactly the many little grids of virtual division artificial on the object bogey;
B, set up data queue: some grids of virtual division on the object bogey, each grid all establishes data area corresponding with it in the Programmable Logic Controller PLC of materials-sorting system; Calculate by Programmable Logic Controller PLC and to store the object property parameters into object and take in the pairing data area of grid, promptly in Programmable Logic Controller PLC, set up the operating position that whole object bogey is represented in a data formation; The property parameters of described object comprises the pitch information between slogan information, object geometric center dot position information and the two articles of the size dimension of object, grid number that object takies, object, and the detection information that these property parameters are obtained according to detection means by Programmable Logic Controller PLC, the velocity information of inlet conveyer belt and the bar code information of reading the bar code board of the object that decoding apparatus reads calculate;
C, pulse calculating and information trace: calculate object bogey physics rotation displacement by the rotary encoder that is installed on the object bogey; High-speed counter module among the Programmable Logic Controller PLC is by calculating the umber of pulse that rotary encoder sends, the change of the umber of pulse that rotary encoder sends when making data queue among the Programmable Logic Controller PLC with the rotation of object bogey and corresponding being moved followed the tracks of row the data among the Programmable Logic Controller PLC of the dummy grid correspondence on the object bogey by the grid mode like this.
2. a kind of object grid type tracking that is applied in the object sorting system according to claim 1, it is characterized in that: the size of grid and the quantity of grid are decided by the computing capability of the Programmable Logic Controller PLC that each engineering project is selected for use.
3. a kind of object grid type tracking that is applied in the object sorting system according to claim 1 is characterized in that: the object bogey is the letter sorting rotating disk, or as the conveyer belt that sorts bogey; Detection means is a photoelectric sensor.
4. object grid type tracking means that is applied in the object sorting system, comprise the man-machine interface layer that is used for man-machine communication and operation configuration interface, be used to control and Programmable Logic Controller PLC control and interface layer that interface communication is handled, the equipment and the electrical equipment layer that are used to detect luggage and carry out action is characterized in that:
Be arranged on the object bogey of equipment and electrical equipment layer and be provided with dummy grid clockwise according to certain distance, described dummy grid is exactly the many little grids of virtual division artificial on the object bogey; The object bogey is provided with the rotary encoder that calculates object bogey physics rotation displacement by the umber of pulse of sending;
Programmable Logic Controller PLC control and interface layer are provided with Programmable Logic Controller PLC equipment, and described Programmable Logic Controller PLC equipment establishes and each corresponding data area of described grid;
Described equipment and electrical equipment layer also are provided with whether corresponding object are injected into injection conveyer belt on the object bogey, are used to read reading decoding apparatus, being used to obtain object and detecting the inlet detection means of information and be used to judge and follow the tracks of object and trace information outlet detection means and that the tracking of object is tested of bar code information on the object bar code board from inlet;
Described man-machine interface layer comprises database server, supervisory control comuter;
Calculate by described Programmable Logic Controller PLC and to store the object property parameters into object and take in the pairing data area of grid, promptly in Programmable Logic Controller PLC, set up the operating position that whole object bogey is represented in a data formation; High-speed counter module among the Programmable Logic Controller PLC is by calculating the umber of pulse that rotary encoder sends, the change of the umber of pulse that rotary encoder sends when making data queue among the Programmable Logic Controller PLC with the rotation of object bogey and corresponding being moved followed the tracks of row the data among the Programmable Logic Controller PLC of the dummy grid correspondence on the object bogey by the grid mode like this;
The property parameters of described object comprises the pitch information between slogan information, object geometric center dot position information and the two articles of the size dimension of object, grid number that object takies, object, and the detection information that these property parameters are obtained according to the inlet detection means by Programmable Logic Controller PLC, the velocity information of inlet conveyer belt and the bar code information of reading the object bar code board that decoding apparatus reads calculate.
5. a kind of object grid type tracking means that is applied in the object sorting system according to claim 4, it is characterized in that: described equipment and electrical equipment layer also comprise sorting equipment, chute, described object bogey is for the letter sorting rotating disk or as the conveyer belt that sorts bogey, and sorting equipment is the letter sorting push arm.
6. a kind of object grid type tracking means that is applied in the object sorting system according to claim 4, it is characterized in that: be starting point with the inlet detection means on the object bogey before the inlet on the described object bogey, according to certain distance dummy grid is set continuously clockwise, the size of grid and the quantity of grid are decided by the computing capability of the Programmable Logic Controller PLC that selects for use.
7. a kind of object grid type tracking means that is applied in the object sorting system according to claim 4, it is characterized in that: described inlet detection means is a photoelectric sensor.
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| CN101727607B (en) * | 2009-12-07 | 2012-06-20 | 苏州富士胶片映像机器有限公司 | Equipment for taking, sensing and counting parts and using method thereof |
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