Line production system based on RFIDTechnical field
The present invention relates to a kind of line production system, specifically there is in a kind of operation product to depart from the base of conveyer belt situationIn the line production system of RFID.
Background technology
Production line referred to numerous stations and the machine being matched therewith for configuring operator or industrial robot,Collaboration in order completes the industrial production system for setting production procedure.Have high due to adopting continuous productive process, production line productionEfficiency, is possibly realized large-scale batch production.Due to the specialization of each station so that the operation of employee is more skilled,Product quality is also more stable.But those manually-operated stations are produced unavoidably due to the impact of some human factorsFluctuation in terms of quality.From for the angle of management, defective product is processed in time and information trace, needed to production lineThe information of product and preservation, and by the way of manually gathering, manually entering, such mode accuracy rate is not high,Cannot real-time tracking product information, for the product for going wrong, it is difficult to accomplish that follow-up tracking is processed, and manually gather typingEfficiency is low, it is difficult to reach the efficiency requirements of production line production.
RF identification is RFID (RadioFrequencyIDentification) technology, can be recognized by radio signalsSpecific objective simultaneously reads and writes related data, and without the need for machinery or optical contact are set up between identifying system and specific objective, is a kind ofContactless automatic identification technology.RFID technique recognizable object object simultaneously obtains related data can be while recognizing multiple marksSign, it is swift and convenient to operate.
In prior art, there are on some production lines many employee's stations for needing several employees to be operated simultaneously, be justQuantitative evaluation is carried out in the workload and work quality to each employee, Chinese patent literature CN103213822A discloses one kindProduction line conveying device and its control device based on personal information module.Controller on main control board sends process informationTo the corresponding plug and play multifunctional personal information module of each station, each plug and play multifunctional personal information module showsCorresponding process information simultaneously points out workman to be swiped the card, and workman is swiped the card, and plug and play multifunctional personal information module will be brushedEmployee's job number that card reads is sent to the controller on main control board, and the controller on main control board is by each stationCard using information judges whether each station is ready.Which can be realized to personal work amount, work quality and production groupThe quantitative statisticses of workload, work quality, accomplish that any quality problems can position, trace to the source.
But, in above-mentioned prior art, the scheme that its employee information is still only linked together with station and is processedProduct between no direct corresponding relation.Wherein, swipe the card letter of the controller in master control circuit board by each stationBreath judges whether each station is ready, as long as so having one or several employees to swipe the card in many employee's stations can point out thisStation is ready, even if there is several employees to forget to swipe the card, nor affects on these production activities of the employee in the station of not swiping the card.So for manager, any relevant with the Product processing event occurred in many employee's stations all can not be added with specificWork employee be mapped, but one or several employees that correspondence has been swiped the card.There is the life for departing from station especially for someProducing line, such as metallic door production line are carried after semi-finished product carry out the operations such as phosphatization cleaning, spraying in the hook by shuttling movement,Needs carry out patch transfer paper by employee's undercarriage semi-finished product, then restocking carries out other operations again.So in the several members of same stationThe situation of work operation, as product is departing from production line, has had been out original sequence, multiple products in this station processingNot necessarily restocking again is sorted on production line according further to original, so above-mentioned prior art is just more difficult to determine product and addThe corresponding relation of work employee.Obviously, prior art disclosed in Chinese patent literature CN103213822A is finding substandard productWhen, the processing employee that still cannot effectively review the substandard product designating step；And for individual product is departing from station undercarriageAfter, in time processing restocking again causes the batch products machine on time and consigns to the problem of client also notThe employee for causing the event can be traced.The prior art there is also the problem that employee forgets to swipe the card simultaneously.
The content of the invention
The technical problem to be solved is that many employee's stations cannot review substandard product or something lost on a production lineThe problem of the processing employee of loss of production product designating step.
For solve above-mentioned technical problem, a kind of line production system based on RFID, including
Production line, with multiple stations, wherein at least one station is many employees that similar processing is carried out by multiple employeesStation, is provided with rfid interrogator in many employee's stations；
Memory, is connected with the rfid interrogator signal, for storing the information that the rfid interrogator is obtained；
Production RFID label, is arranged on processed semi-finished product；
It is characterized in that：Also include
Employee's RFID tag, is arranged on the object that employee need to wear；The rfid interrogator is reading the productThe same period of RFID tag, also read processing employee's RFID tag
Further, induction installation is provided with many employee's stations, the induction installation is used to sense carrier band mechanismWhether semi-finished product are carried；When it is described sense the semi-finished product when, trigger the production RFID read write line and start working.
Specifically, the induction installation has optoelectronic switch.
The carrier band efficiency of mechanism is carried for statistics, the induction installation is included for detecting the load passed through on production lineThe first inductor with mechanism, and for detecting the second inductor for whether having semi-finished product in carrier band mechanism；Semi-finished product are not carriedCarrier band mechanism when being scanned through, first inductor produces detection information, and second inductor is not producedDetection information, the production RFID read write line do not work, and send carrier band mechanism airborne signals；Through being loaded with semi-finished product on production lineCarrier band mechanism when, first inductor and second inductor produce detection information simultaneously, and the rfid interrogator is openedBeginning work.
After the rfid interrogator is started working, the production RFID label of the semi-finished product for passing through is gathered；
And the employee's RFID tag being processed to semi-finished product is read in the same period.
Preferably, after the rfid interrogator is started working, while reading the production RFID label and the employeeRFID tag.
The data and photoelectric switch state delta data that the rfid interrogator reads give described by wireless network transmissionsMemory.
The memory is arranged in a master control server；Processor, the process are provided with the master control serverDevice process is from the memory or the information directly from the rfid interrogator, and production line is issued according to resultControl command.
At many employee's stations, the semi-finished product need disengaging production line to be processed by not specific employee accordingly；Timer is provided with the master control server, the timer is to reading the production RFID label per rfid interrogator described in platformAfter start timing；Exceed with the time difference value at current time when semi-finished product last time is read the moment of production RFID labelDuring preset value, send warning or record in which memory.
The alarm for sending warning is arranged at station residing for the corresponding rfid interrogator.
The alarm for sending warning can also be portable mobile wireless alarm, be worn on employee and/or site administrator's bodyOn；Wherein described master control server exceedes the product of preset value according to there is time difference value
RFID tag searches the employee's RFID tag in the correspondence time period, alarm signal is sent to and is worn on employeeThe portable mobile wireless alarm with it.
The above-mentioned technical proposal of the present invention can immediately, accurately feed back manufacturing schedule of each semi-finished product in workshop, andEach product can review the processing people of each operation according to unique encodings；Production management personnel are looked in real time by system clientProduction line semi-finished product carrier band situation, the real-time yield of each operation are seen, so as to pinpoint the problems, is made in time and more reasonably being adjusted.ImproveThe level of scientific management.Record trigger switch is set, and segment record information saves memory space on time, is easy to information searching.By meterWhen device to reading the production RFID label per rfid interrogator described in platform after start timing, find to omit in relative stationsSemi-finished product, it is to avoid half product not processing restocking again in time after undercarriage, cause the batch products pay on timeTo client.
Specific embodiment
Based on the production line of RFID, by master control server and the intelligent scanning being arranged on production line each many employee's stationPoint composition.Many employee's stations mentioned here refer to have multiple employees in same working time section in same station whileOr the station of replacement work, or continuous turnover (work in three shifts or Fourth Shift falls) station.Single intelligent scanning point includes two conductsThe optoelectronic switch of induction installation, controls to start by the optoelectronic switch rfid interrogator cut out, searches and receive RFIDLabel the RFID antenna to RFID tag signal acquired in rfid interrogator offer, GPIO (universal input/output) box,And the indicator lamp of prompting production line states.
Optoelectronic switch is used to perceive production line situation, through as carrier band mechanism on the first optoelectronic switch detection production lineWhether hook, have the door to be processed as semi-finished product on the second optoelectronic switch detection hook.The empty hook of door to be processed is not carriedWhen being scanned through, indicator lamp shows yellow, and on production line when the hook of carrier band door to be processed, indicator lamp shows green,RFID antenna and rfid interrogator are started working, and when processing employee contacts the door to be processed, the rfid interrogator is adopted simultaneouslyThe employee's RFID tag sequence number carried with production RFID label sequence number and the employee on the door to be processed of collection process.Above numberAccording to by wireless network transmissions to master control server record and process, and by master control server issue control command.
For the semi-finished product need to depart from the station that production line is carried out processing accordingly by not specific employee.The master controlBe provided with timer in server, the timer to reading the production RFID label per rfid interrogator described in platform after start meterWhen；When semi-finished product last time is read the moment of the production RFID label with the time difference value at current time more than preset valueWhen, the master control server is corresponded in the time period according to there is the production RFID label lookup of the time difference value more than preset valueEmployee's RFID tag, alarm signal is sent to and is worn on the described of (such as watch form or employee job card form) with employeePortable mobile wireless alarm, by the portable mobile wireless alarm being worn on employee.
In the above-described embodiments, the wireless alarm can also be provided in work residing for the corresponding rfid interrogatorAt position.
For the ease of management in time, the wireless alarm can also be worn on site administrator simultaneously.
In the above-described embodiments, the rfid interrogator can also be two, read the production RFID label respectively and look intoAnd employee's RFID tag, and while master control server is given by the signal transmission for reading.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is rightFor those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change orChange.There is no need to be exhaustive to all of embodiment.And thus it is extended obvious change orAmong changing still in the protection domain of the invention.