CN103817086A - Diameter-control access device for luggage sorting and luggage sorting method - Google Patents
Diameter-control access device for luggage sorting and luggage sorting method Download PDFInfo
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- CN103817086A CN103817086A CN201410099706.8A CN201410099706A CN103817086A CN 103817086 A CN103817086 A CN 103817086A CN 201410099706 A CN201410099706 A CN 201410099706A CN 103817086 A CN103817086 A CN 103817086A
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Abstract
The invention relates to concentrated luggage sorting equipment, and particularly relates to a diameter-control access device for luggage sorting and a luggage sorting method, wherein the diameter-control access device is capable of effectively enhancing the sorting efficiency and lowering the missing sorting rate and the faulty sorting rate, and low in cost, reliable in work and suitable to large-scale popularization and application. The diameter-control access device is characterized by being provided with a Chinese character 'men'-shaped case in which an industrial personal computer, an exchanger, an RFID (Radio Frequency Identification) reader-writer and an RFID antenna group are arranged, wherein the industrial personal computer is connected with the RFID reader-writer through the exchanger, the RFID reader-writer is connected with the RFID antenna group, and the RFID antenna group comprises at least three antennas which are respectively fixed at the inner side of the top of the 'men'-shaped case and two inner side walls of the 'men'-shaped case. Compared with the prior art, the diameter-control access device has the significant advantages of being reasonable in structure, high in efficiency, low in cost, high in accuracy rate, and the like.
Description
Technical field
The present invention relates to luggage and concentrate sorting arrangement, one can effectively improve sorting efficiency specifically, reduces undetected, the mistake of sorting and chooses rate, and cost is low, and reliable operation is suitable for footpath control lane device and the baggage sorting method for baggage sorting of large-scale promotion application.
Background technology
Current most airport, due to reasons such as technology, place and costs, still adopts the mode of manual sorting's luggage.In sort process, sorting personnel can only be by manually judging the flight under luggage, and this mode working strength is large, and error probability is high, inefficiency, and after makeing mistakes, cannot confirm the link of makeing mistakes, the measure disappearance of remedying and call to account.Especially obviously aggravation of these negative condition in shipping peak, causes damage to airline and passenger.Along with the development of REID, the existing radio frequency checkout equipment that is applied to the turnover safety check aspect such as airport, harbour, but mostly be independently checkout gear, can not carry out information interaction with outside, can not complete for current flight/departure from port information the real-time comparison of detection information, in addition, the undetected fallout ratio of existing RF Technology for Measuring is higher, radio-frequency antenna is to have blind area in reading tag, has all limited the application of radio frequency checkout equipment at airport above.
Summary of the invention
The present invention is directed to the shortcoming and defect of prior art, propose a kind of footpath control lane device and the baggage sorting method for baggage sorting that can effectively assist luggage to check and sort.
The present invention can reach by following measures:
A kind of baggage sorting is controlled lane device with footpath, it is characterized in that being provided with a word machine case, in cabinet, be provided with industrial computer, switch, rfid interrogator and RFID antenna sets, industrial computer is connected with rfid interrogator through switch, rfid interrogator is connected with RFID antenna sets, wherein RFID antenna sets is at least provided with three RFID antennas, is separately fixed on an inside top of word machine case and two madial walls.
In the present invention, rfid interrogator is provided with control module and radiofrequency signal processing unit, wherein control module is provided with microprocessor, the memory being connected with microprocessor respectively, power circuit, clock circuit, radiofrequency signal processing unit is provided with transmitting-receiving and modulation-demodulation circuit, power amplification circuit, linear amplifier circuit, wherein the output of transmitting-receiving and modulation-demodulation circuit is connected with power amplification circuit, the output of linear amplifier circuit is connected with the RF signal input end of transmitting-receiving and modulation-demodulation circuit, the input of linear amplifier circuit is all connected with radio-frequency antenna with the output of power amplification circuit, the control end of transmitting-receiving and modulation-demodulation circuit is connected with the microprocessor in control module.
Transmitting-receiving in the present invention in radiofrequency signal processing unit and modulation-demodulation circuit are provided with the crystal oscillator for generating local oscillator signal, the frequency synthesizer circuit being connected with crystal oscillator, the amplifying circuit being connected with frequency synthesizer circuit output, wherein the output of amplifying circuit Yi road is connected with transmission modulation circuit, another road output is sent into receiving demodulation circuit after phase deviation processing of circuit, the signal input part that sends modulation circuit is connected to obtain the read write command after microprocessor processes with DAC module, sending modulation circuit is modulated to read write command after corresponding band, signal after modulation is sent into power amplification circuit, circulator through being connected with power amplification circuit output successively, the duplexer being connected with circulator is selected circuit, send with the radio-frequency antenna that duplexer selects circuit to be connected, the input of receiving demodulation circuit is connected to obtain the label information of antenna reception with circulator.
Three RFID antennas in the present invention catch the luggage tag conveyer belt from three different directions respectively, simultaneously for avoiding misreading the label of adjacent luggage, antenna is embedded into footpath control channel interior, the shielding properties of complexed metal shell, the electromagenetic wave radiation scope that antenna is externally launched is dwindled, guarantee the accuracy that antenna reads, wherein each RFID antenna transmission angle is 100 degree, top antenna reads straight down, both sides antenna is 27 degree angles, slightly downwards, guarantee that three aerial radiation faces are independent square space, when use, the conveyer belt width of cooperating is 1 meter, height is 40 centimetres, footpath control passage span width is 1.3 meters, free height is 1.6 meters, deduct after belt heights, inner effective depth is 1.2 meters, according to aviation luggage national standard, maximum is 32 cun of draw-bar boxes, a length and width Senior Three length sum is no more than 195 centimetres, and this draw-bar box does not have standard three limit sizes, major part is customized, in casing customized, longest edge can superelevation 1.1 meters yet, therefore, footpath control channel interior dead size meets all luggage cases substantially to be passed through, independent square space can be controlled all article of channel interior in comprehensive parcel footpath, luggage tag is in ultra-high frequency antenna magnetic field, as long as cutting magnetic field line can excite label produce power, realize reading information, and label is while being parallel to magnetic direction, read effect the poorest, by a large amount of calculating and experiment, determine the placed angle of three antennas, form three-dimensional intensive netted magnetic induction line in space, guarantee no matter how luggage is placed, label is any direction in space, can cut the netted magnetic induction line that ultra-high frequency antenna forms, simultaneously, belt position is the strongest position of field intensity in footpath control passage, field intensity computing formula:
, E is compound field intensity, E1, and E2 ... En is the measured field intensity of each individual antenna, and in three antennas, any one antenna reads label, all can report label information, guarantees to there will not be skip in sort process.
In the present invention, be also provided with the infrared sensing unit being connected with industrial computer, infrared sensing unit comprises the controller being connected with industrial computer, the the first infrared sensing array being connected with controller respectively and the second infrared sensing array, wherein the first infrared sensing array is fixed on the positive basifacial of a word machine case, import direction into towards luggage, for detection of whether having luggage to pass through, the second infrared sensing array comprises and being separately fixed on a madial wall of word machine case, the elevation information of the luggage passing through for sensing, infrared sensor in the present invention adopts correlation infrared module, the first infrared array sensor comprises a pair of infrared sensor, be placed on a minimum point in word machine case front, be close to conveyer belt surface, guarantee that minimum luggage also can trigger infrared, the second infrared sensor 6 is to infrared, interval 15cm arranges, total height is 90cm, for the luggage case of differing heights, cross together the infrared quantity that luggage case blocks, calculate luggage case height, while luggage case first triggers the first infrared sensing array before cabinet, trigger again the second infrared sensing array, according to the triggered time interval of twice, can calculate the translational speed of conveyer belt, calculate different time sections simultaneously, the accurate location of each luggage, after data are processed by industrial computer, upload server, server is according to uploading information, pass through software algorithm, form threedimensional model, be presented in real time on remote data indicator, facilitate staff promptly and accurately to hold position and the information of each luggage.
In controller in infrared sensing of the present invention unit, be provided with microprocessor, be connected with microprocessor for be connected industrial computer upload circuit, be connected with microprocessor for gather the signal acquisition circuit of infrared sensing signal and be connected with microprocessor for composing the address encoding circuit of geocoding to infrared sensing array infrared sensor.
The present invention is also provided with the status information display module, the wireless network place in circuit that are connected with industrial computer, wherein in status information display module, is provided with audible-visual annunciator and display screen, can output abnormality warning message and current device numbering.
The present invention can also be provided with the external display screen being connected with industrial computer, for output sort result.
A kind of baggage sorting method, when the luggage to be detected that it is characterized in that being provided with RFID label is placed in and control the door word machine case of lane device by footpath on conveyer belt, footpath is controlled device luggage to be detected is carried out to following operation:
Step 1: luggage is transported by conveyer belt, in transport process, through footpath control passage, now trigger the first infrared sensing array in cabinet front, controller record in infrared sensing unit triggers the moment, and being reported industrial computer, industrial computer obtains reporting information and judges that luggage enters after surveyed area, controls rfid interrogator the luggage to be detected that enters surveyed area is detected;
Step 2: three RFID antennas respectively slave box top and the left and right sides read the label information carrying on luggage, and reading information is reported to industrial computer, industrial computer completes data by wireless network place in circuit and external server and links up, obtain the contrast information of current luggage, the data that industrial computer is uploaded rfid interrogator are compared with the information of contrast, if be not inconsistent with the information of contrast, judgement is not this flight luggage, carry out sound and light alarm, if conformed to, judgement is this flight luggage, the information exchange of detection is crossed to wireless network place in circuit and report to server
Step 3: luggage continues across footpath control passage and triggers the second infrared sensing array, controller record in infrared sensing unit triggers the moment, and record the quantity that in the second infrared sensing array, infrared sensor is triggered, controller is according to the priority triggered time of two groups of infrared sensing arrays and trigger the speed of service and the luggage height dimension that highly obtain conveyer belt, and then definite luggage is at the accurate location of conveyer belt, and obtain the three-dimensional dimension analog information of luggage, upload industrial computer;
Step 4: industrial computer will form the threedimensional model of luggage after further information analyzing and processing, and generate simulation graphics, the luggage information that shows whole piece conveyer belt directly perceived on remote data indicator.
Step 5: if a certain luggage is repeatedly detected, not removed, industrial computer can be processed luggage information mark, after upload server, not removed the meeting variable color of luggage threedimensional model glittering being presented on remote data indicator, remind staff to have omission luggage;
Step 5: all removed when all baggage sortings of this flight, information has been preserved, and this go-on-go finishes.
The label information that in step 2 of the present invention, rfid interrogator reads three RFID antennas carries out being uploaded to industrial computer after preliminary treatment, if read two or three same label information simultaneously, will only retain one and be uploaded to industrial computer.
In step 3 of the present invention in the time that luggage is controlled passage by footpath, block infrared, infrared output low level, and the infrared lasting output high level not blocking, every pair infrared fixed number, rely on numbering to determine infrared position, infrared level signal is uploaded to controller, which infrared being blocked controller confirms, not which infrared not being blocked, represent by the mode that 2 bytes are encoded by position, when transmission, low byte is front, and high byte is rear.1 represents infrared blocking, 0 represents infrared not being blocked, and represents infrared being blocked 1,2 and No. 9 as received 0x03 0x01, and all the other are not blocked, when after row bottom two be blocked to infrared, think luggage height 30cm, three pairs are blocked, and think luggage height 45cm, by that analogy, simultaneously judgement before and after two row the infrared time intervals that are blocked, send once obtain infrared state, obtains 10 record and every record corresponding timer time.Information field is 10 records, every record format: LSN+infrared data (2Byte)+time counting (4Byte, low byte is front), wherein, time counting is the count value of internal timer, 32bit, be increased to 0xFFFFFFFF from 0x0 and be inverted to 0x0 circulation, often add 1 and represent time 10us in the past, article two, between record, be 12 countings, be 120us, therefore be returned as the infrared state information of nearest 1.2ms at every turn, the front and back infrared distance of two rows is fixed, utilize V=S/T can calculate the speed of conveyer belt, again according to after the infrared triggering in front row, infrared double being blocked the time of rear row, be the length that l=vt can calculate luggage, the width acquiescence of luggage adopts 40cm, thereby provide the three-dimensional basic data of software algorithm modeling, after controller completes all Infrared information processings, be converted to the data signal of codified, upload industrial computer, in VC, adopt again OpenGL mode according to the length of obtaining, wide, high information is drawn out luggage case 3 dimensional drawing, output to remote data indicator by VGA, operating personnel can see intuitively the position of each luggage on conveyer belt on display, general size, corresponding passenger information, operating condition etc. information, improve operating personnel's operating efficiency, reduce the error rate of baggage sorting.The present invention compared with prior art, (1) efficiency is high: by RFID antenna, the luggage tag that can read per second reaches 200, read and report luggage tag by rfid interrogator, realize Luggage automatic sorting, even if also can guarantee the high efficiency of baggage sorting process period commuter rush hour, reduce labor intensity; (2) information interaction is strong; Every footpath control passage carries industrial computer, forms independent particle system, can screen the luggage by passage, and by state and information display module, guide field staff carries out subsequent operation, passes through data upload, on remote data indicator, form threedimensional model, can intuitively locate luggage information; (3) accuracy is high, information-based strong: 3 RFID antennas of every footpath control channel interior configuration, by certain Spatial Coupling, three-dimensional omnidirectional covers conveyer belt, guarantees that each luggage tag can both be read detection, reduces and even stops mistake, the luggage data that this equipment gathers have realized the combination of logistics and information flow, be the basis of Airport informationization management, support the data sharing between airport simultaneously, so that the value-added service such as tracking enquiry of luggage to be provided; (4) cost is low, strong adaptability: footpath control passage is autonomous device, and without existing airport is transformed, equipment size meets domestic existing airdrome luggage conveyer belt size, can use, without other corollary equipments after power supply.
accompanying drawing explanation:
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is structured flowcharts of the present invention.
Accompanying drawing 3 is structured flowcharts of frequency read/write in the present invention.
Accompanying drawing 4 is structured flowcharts of radiofrequency signal processing unit in the present invention.
Accompanying drawing 5 is flow charts of the present invention.
Reference numeral: cabinet 1, industrial computer 2, switch 3, rfid interrogator 4, RFID antenna 5, control module 6, radiofrequency signal processing unit 7, microprocessor 8, memory 9, power circuit 10, clock circuit 11, transmitting-receiving and modulation-demodulation circuit 12, power amplification circuit 13, linear amplifier circuit 14, crystal oscillator 15, frequency synthesizer circuit 16, send modulation circuit 17, receiving demodulation circuit 18, phase deviation circuit 19, duplexer is selected circuit 20, infrared sensing unit 21, controller 22, the first infrared sensing array 23, the second infrared sensing array 24, status information display module 25, wireless network place in circuit 26, communication interface circuit 27, circulator 28.
the specific embodiment:
Below in conjunction with drawings and Examples, the present invention is further illustrated.
As shown in accompanying drawing 1 and accompanying drawing 2, the present invention proposes a kind of baggage sorting and control lane device with footpath, it is characterized in that being provided with a word machine case 1, in cabinet 1, be provided with industrial computer 2, switch 3, rfid interrogator 4 and RFID antenna sets, industrial computer 2 is connected with rfid interrogator 4 through switch 3, rfid interrogator 4 is connected with RFID antenna sets, and wherein RFID antenna sets is at least provided with three RFID antennas 5, is separately fixed on an inside top of word machine case 1 and two madial walls;
As shown in Figure 3, in the present invention, rfid interrogator 4 is provided with control module 6 and radiofrequency signal processing unit 7, wherein control module 6 is provided with microprocessor 8, the memory 9 being connected with microprocessor 8 respectively, power circuit 10, clock circuit 11, radiofrequency signal processing unit 7 is provided with transmitting-receiving and modulation-demodulation circuit 12, power amplification circuit 13, linear amplifier circuit 14, wherein the output of transmitting-receiving and modulation-demodulation circuit 12 is connected with power amplification circuit 13, the output of linear amplifier circuit 14 is connected with the RF signal input end of transmitting-receiving and modulation-demodulation circuit 12, the output of the input of linear amplifier circuit 14 and power amplification circuit 13 is all connected with radio-frequency antenna 5, the control end of transmitting-receiving and modulation-demodulation circuit 12 is connected with the microprocessor 8 in control module 6, in control module 6, be also provided with the communication interface circuit 27 being connected with microprocessor 8, for being connected with industrial computer.
As shown in Figure 4, transmitting-receiving in the present invention in radiofrequency signal processing unit 7 and modulation-demodulation circuit 12 are provided with the crystal oscillator 15 for generating local oscillator signal, the frequency synthesizer circuit 16 being connected with crystal oscillator 15, the amplifying circuit being connected with frequency synthesizer circuit 16 outputs, wherein the output of amplifying circuit Yi road is connected with transmission modulation circuit 17, another road output is sent into receiving demodulation circuit 18 after phase deviation circuit 19 is processed, the signal input part that sends modulation circuit 17 is connected to obtain the read write command after microprocessor processes with DAC module, sending modulation circuit 17 is modulated to read write command after corresponding band, signal after modulation is sent into power amplification circuit, circulator 28 through being connected with power amplification circuit output successively, the duplexer being connected with circulator 28 is selected circuit 20, send with the radio-frequency antenna 5 that duplexer selects circuit 20 to be connected, the input of receiving demodulation circuit 18 and circulator 28 are connected to obtain the label information of antenna reception.
Three RFID antennas in the present invention catch the luggage tag conveyer belt from three different directions respectively, simultaneously for avoiding misreading the label of adjacent luggage, antenna is embedded into footpath control channel interior, the shielding properties of complexed metal shell, the electromagenetic wave radiation scope that antenna is externally launched is dwindled, guarantee the accuracy that antenna reads, wherein each RFID antenna transmission angle is 100 degree, top antenna reads straight down, both sides antenna is 27 degree angles, slightly downwards, guarantee that three aerial radiation faces are independent square space, when use, the conveyer belt width of cooperating is 1 meter, height is 40 centimetres, footpath control passage span width is 1.3 meters, free height is 1.6 meters, deduct after belt heights, inner effective depth is 1.2 meters, according to aviation luggage national standard, maximum is 32 cun of draw-bar boxes, a length and width Senior Three length sum is no more than 195 centimetres, and this draw-bar box does not have standard three limit sizes, major part is customized, in casing customized, longest edge can superelevation 1.1 meters yet, therefore, footpath control channel interior dead size meets all luggage cases substantially to be passed through, independent square space can be controlled all article of channel interior in comprehensive parcel footpath, luggage tag is in ultra-high frequency antenna magnetic field, as long as cutting magnetic field line can excite label produce power, realize reading information, and label is while being parallel to magnetic direction, read effect the poorest, by a large amount of calculating and experiment, determine the placed angle of three antennas, form three-dimensional intensive netted magnetic induction line in space, guarantee no matter how luggage is placed, label is any direction in space, can cut the netted magnetic induction line that ultra-high frequency antenna forms, simultaneously, belt position is the strongest position of field intensity in footpath control passage, field intensity computing formula:
, E is compound field intensity, E1, and E2 ... En is the measured field intensity of each individual antenna, and in three antennas, any one antenna reads label, all can report label information, guarantees to there will not be skip in sort process.
In the present invention, be also provided with the infrared sensing unit 21 being connected with industrial computer 2, infrared sensing unit 21 comprises the controller 22 being connected with industrial computer, the the first infrared sensing array 23 being connected with controller 22 respectively and the second infrared sensing array 24, wherein the first infrared sensing array 23 is fixed on the positive basifacial of a word machine case 1, import direction into towards luggage, for detection of whether having luggage to pass through, the second infrared sensing array 24 comprises and being separately fixed on a madial wall of word machine case, the elevation information of the luggage passing through for sensing, infrared sensor in the present invention adopts correlation infrared module, the first infrared array sensor 23 comprises a pair of infrared sensor, be placed on a minimum point in word machine case front, be close to conveyer belt surface, guarantee that minimum luggage also can trigger infrared, the second infrared sensing array 24 is longitudinally arranged by more than two correlation infrared sensor each interval 15cm, be distributed in respectively a word casing left side, on right inside sidewall, total height is 90cm, for the luggage case of differing heights, cross together the infrared quantity that luggage case blocks, calculate luggage case height, while luggage case first triggers the first infrared sensing array 23 before cabinet, trigger again the second infrared sensing array 24, according to the triggered time interval of twice, can calculate the translational speed of conveyer belt, calculate different time sections simultaneously, the accurate location of each luggage, after data are processed by industrial computer 2, upload server, server is according to uploading information, pass through software algorithm, form threedimensional model, be presented in real time on remote data indicator, facilitate staff promptly and accurately to hold position and the information of each luggage.
In controller 22 in infrared sensing of the present invention unit 21, be provided with microprocessor, be connected with microprocessor for be connected industrial computer upload circuit, be connected with microprocessor for gather the signal acquisition circuit of infrared sensing signal and be connected with microprocessor for composing the address encoding circuit of geocoding to infrared sensing array infrared sensor.
The present invention is also provided with the status information display module 25, the wireless network place in circuit 26 that are connected with industrial computer 2, wherein in status information display module 25, is provided with audible-visual annunciator and display screen, can output abnormality warning message and current device numbering.
The present invention can also be provided with the external display screen being connected with industrial computer 2, for output sort result.
As shown in Figure 5, the present invention also proposes a kind of baggage sorting method, and when the luggage to be detected that it is characterized in that being provided with RFID label is placed in and controls the door word machine case of lane device by footpath on conveyer belt, footpath control device carries out following operation to luggage to be detected:
Step 1: luggage is transported by conveyer belt, in transport process, through footpath control passage, now trigger the first infrared sensing array in cabinet front, controller record in infrared sensing unit triggers the moment, and being reported industrial computer, industrial computer obtains reporting information and judges that luggage enters after surveyed area, controls rfid interrogator the luggage to be detected that enters surveyed area is detected;
Step 2: three RFID antennas respectively slave box top and the left and right sides read the label information carrying on luggage, and reading information is reported to industrial computer, industrial computer completes data by wireless network place in circuit and external server and links up, obtain the contrast information of current luggage, the data that industrial computer is uploaded rfid interrogator are compared with the information of contrast, if be not inconsistent with the information of contrast, judgement is not this flight luggage, carry out sound and light alarm, if conformed to, judgement is this flight luggage, the information exchange of detection is crossed to wireless network place in circuit and report to server
Step 3: luggage continues across footpath control passage and triggers the second infrared sensing array, controller record in infrared sensing unit triggers the moment, and record the quantity that in the second infrared sensing array, infrared sensor is triggered, controller is according to the priority triggered time of two groups of infrared sensing arrays and trigger the speed of service and the luggage height dimension that highly obtain conveyer belt, and then definite luggage is at the accurate location of conveyer belt, and obtain the three-dimensional dimension analog information of luggage, upload industrial computer;
Step 4: industrial computer will form the threedimensional model of luggage after further information analyzing and processing, and generate simulation graphics, the luggage information that shows whole piece conveyer belt directly perceived on remote data indicator.
Step 5: if a certain luggage is repeatedly detected, not removed, industrial computer can be processed luggage information mark, after upload server, not removed the meeting variable color of luggage threedimensional model glittering being presented on remote data indicator, remind staff to have omission luggage;
Step 5: all removed when all baggage sortings of this flight, information has been preserved, and this go-on-go finishes.
The label information that in step 2 of the present invention, rfid interrogator reads three RFID antennas carries out being uploaded to industrial computer after preliminary treatment, if read two or three same label information simultaneously, will only retain one and be uploaded to industrial computer.
In step 3 of the present invention in the time that luggage is controlled passage by footpath, block infrared, infrared output low level, and the infrared lasting output high level not blocking, every pair infrared fixed number, rely on numbering to determine infrared position, infrared level signal is uploaded to controller, which infrared being blocked controller confirms, not which infrared not being blocked, represent by the mode that 2 bytes are encoded by position, when transmission, low byte is front, and high byte is rear.1 represents infrared blocking, 0 represents infrared not being blocked, and represents infrared being blocked 1,2 and No. 9 as received 0x03 0x01, and all the other are not blocked, when after row bottom two be blocked to infrared, think luggage height 30cm, three pairs are blocked, and think luggage height 45cm, by that analogy, simultaneously judgement before and after two row the infrared time intervals that are blocked, send once obtain infrared state, obtains 10 record and every record corresponding timer time.Information field is 10 records, every record format: LSN+infrared data (2Byte)+time counting (4Byte, low byte is front), wherein, time counting is the count value of internal timer, 32bit, be increased to 0xFFFFFFFF from 0x0 and be inverted to 0x0 circulation, often add 1 and represent time 10us in the past, article two, between record, be 12 countings, be 120us, therefore be returned as the infrared state information of nearest 1.2ms at every turn, the front and back infrared distance of two rows is fixed, utilize V=S/T can calculate the speed of conveyer belt, again according to after the infrared triggering in front row, infrared double being blocked the time of rear row, be the length that l=vt can calculate luggage, the width acquiescence of luggage adopts 40cm, thereby provide the three-dimensional basic data of software algorithm modeling, after controller completes all Infrared information processings, be converted to the data signal of codified, upload industrial computer, in VC, adopt again OpenGL mode according to the length of obtaining, wide, high information is drawn out luggage case 3 dimensional drawing, output to remote data indicator by VGA, operating personnel can see intuitively the position of each luggage on conveyer belt on display, general size, corresponding passenger information, operating condition etc. information, improve operating personnel's operating efficiency, reduce the error rate of baggage sorting.The present invention compared with prior art, (1) efficiency is high: by RFID antenna, the luggage tag that can read per second reaches 200, read and report luggage tag by rfid interrogator, realize Luggage automatic sorting, even if also can guarantee the high efficiency of baggage sorting process period commuter rush hour, reduce labor intensity; (2) information interaction is strong; Every footpath control passage carries industrial computer, forms independent particle system, can screen the luggage by passage, and by state and information display module, guide field staff carries out subsequent operation, passes through data upload, on remote data indicator, form threedimensional model, can intuitively locate luggage information; (3) accuracy is high, information-based strong: 3 RFID antennas of every footpath control channel interior configuration, by certain Spatial Coupling, three-dimensional omnidirectional covers conveyer belt, guarantees that each luggage tag can both be read detection, reduces and even stops mistake, the luggage data that this equipment gathers have realized the combination of logistics and information flow, be the basis of Airport informationization management, support the data sharing between airport simultaneously, so that the value-added service such as tracking enquiry of luggage to be provided; (4) cost is low, strong adaptability: footpath control passage is autonomous device, and without existing airport is transformed, equipment size meets domestic existing airdrome luggage conveyer belt size, can use, without other corollary equipments after power supply.
Claims (9)
1. a baggage sorting is controlled lane device with footpath, it is characterized in that being provided with a word machine case, in cabinet, be provided with industrial computer, switch, rfid interrogator and RFID antenna sets, industrial computer is connected with rfid interrogator through switch, rfid interrogator is connected with RFID antenna sets, wherein RFID antenna sets is at least provided with three RFID antennas, is separately fixed on an inside top of word machine case and two madial walls.
2. a kind of baggage sorting according to claim 1 is controlled lane device with footpath, it is characterized in that rfid interrogator is provided with control module and radiofrequency signal processing unit, wherein control module is provided with microprocessor, the memory being connected with microprocessor respectively, power circuit, clock circuit, radiofrequency signal processing unit is provided with transmitting-receiving and modulation-demodulation circuit, power amplification circuit, linear amplifier circuit, wherein the output of transmitting-receiving and modulation-demodulation circuit is connected with power amplification circuit, the output of linear amplifier circuit is connected with the RF signal input end of transmitting-receiving and modulation-demodulation circuit, the input of linear amplifier circuit is all connected with radio-frequency antenna with the output of power amplification circuit, the control end of transmitting-receiving and modulation-demodulation circuit is connected with the microprocessor in control module.
3. a kind of baggage sorting according to claim 2 is controlled lane device with footpath, it is characterized in that transmitting-receiving and modulation-demodulation circuit in radiofrequency signal processing unit are provided with the crystal oscillator for generating local oscillator signal, the frequency synthesizer circuit being connected with crystal oscillator, the amplifying circuit being connected with frequency synthesizer circuit output, wherein the output of amplifying circuit Yi road is connected with transmission modulation circuit, another road output is sent into receiving demodulation circuit after phase deviation processing of circuit, the signal input part that sends modulation circuit is connected to obtain the read write command after microprocessor processes with DAC module, sending modulation circuit is modulated to read write command after corresponding band, signal after modulation is sent into power amplification circuit, circulator through being connected with power amplification circuit output successively, the duplexer being connected with circulator is selected circuit, send with the radio-frequency antenna that duplexer selects circuit to be connected, the input of receiving demodulation circuit is connected with circulator.
4. a kind of baggage sorting according to claim 3 is controlled lane device with footpath, it is characterized in that three RFID antennas catch the luggage tag conveyer belt from three different directions respectively, RFID antenna embeds in metal shell, wherein each RFID antenna transmission angle is 100 degree, top antenna reads straight down, and both sides antenna is 27 degree angles.
5. a kind of baggage sorting according to claim 4 is controlled lane device with footpath, it is characterized in that being also provided with the infrared sensing unit being connected with industrial computer, infrared sensing unit comprises the controller that is connected with industrial computer, the first infrared sensing array and the second infrared sensing array that are connected with controller respectively, wherein the first infrared sensing array is fixed on the positive basifacial of a word machine case, import direction into towards luggage, the second infrared sensing array comprises and being separately fixed on a madial wall of word machine case, and infrared sensor adopts correlation infrared module.
6. a kind of baggage sorting according to claim 5 is controlled lane device with footpath, it is characterized in that being provided with microprocessor in the controller in infrared sensing unit, be connected with microprocessor for be connected industrial computer upload circuit, be connected with microprocessor for gather the signal acquisition circuit of infrared sensing signal and be connected with microprocessor for composing the address encoding circuit of geocoding to infrared sensing array infrared sensor.
7. a kind of baggage sorting according to claim 6 is controlled lane device with footpath, it is characterized in that being also provided with the status information display module, the wireless network place in circuit that are connected with industrial computer, wherein in status information display module, is provided with audible-visual annunciator and display screen.
8. a baggage sorting method, when the luggage to be detected that it is characterized in that being provided with RFID label is placed in and controls the door word machine case of lane device by footpath on conveyer belt, footpath control device carries out following operation to luggage to be detected:
Step 1: luggage is transported by conveyer belt, in transport process, through footpath control passage, now trigger the first infrared sensing array in cabinet front, controller record in infrared sensing unit triggers the moment, and being reported industrial computer, industrial computer obtains reporting information and judges that luggage enters after surveyed area, controls rfid interrogator the luggage to be detected that enters surveyed area is detected;
Step 2: three RFID antennas respectively slave box top and the left and right sides read the label information carrying on luggage, and reading information is reported to industrial computer, industrial computer completes data by wireless network place in circuit and external server and links up, obtain the contrast information of current luggage, the data that industrial computer is uploaded rfid interrogator are compared with the information of contrast, if be not inconsistent with the information of contrast, judgement is not this flight luggage, carry out sound and light alarm, if conformed to, judgement is this flight luggage, the information exchange of detection is crossed to wireless network place in circuit and report to server
Step 3: luggage continues across footpath control passage and triggers the second infrared sensing array, controller record in infrared sensing unit triggers the moment, and record the quantity that in the second infrared sensing array, infrared sensor is triggered, controller is according to the priority triggered time of two groups of infrared sensing arrays and trigger the speed of service and the luggage height dimension that highly obtain conveyer belt, and then definite luggage is at the accurate location of conveyer belt, and obtain the three-dimensional dimension analog information of luggage, upload industrial computer;
Step 4: industrial computer will form the threedimensional model of luggage after further information analyzing and processing, and generate simulation graphics, the luggage information that shows whole piece conveyer belt directly perceived on remote data indicator.
Step 5: if a certain luggage is repeatedly detected, not removed, industrial computer can be processed luggage information mark, after upload server, not removed the meeting variable color of luggage threedimensional model glittering being presented on remote data indicator, remind staff to have omission luggage;
Step 5: all removed when all baggage sortings of this flight, information has been preserved, and this go-on-go finishes.
9. a kind of baggage sorting method according to claim 8, it is characterized in that the label information that in step 2, rfid interrogator reads three RFID antennas carries out being uploaded to industrial computer after preliminary treatment, if read two or three same label information simultaneously, will only retain one and be uploaded to industrial computer.
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