Utility model content
The technical problems to be solved in the utility model is that the drawbacks described above for prior art can disappear there is provided one kind
Except scan blind spot, the device that a large amount of RF tags irregularly placed are identified with scanning is realized.
The technical solution adopted in the utility model is there is provided a kind of goods automatically scanning cabinet, including cabinet, in cabinet
Inside, including:
Transmission device, including transmission belt, driving wheel and driven pulley;
Antenna holder, the antenna holder is fixedly connected on the belt;
Antenna, the antenna is arranged on the antenna holder, and the antenna is connected with radio frequency reader;
Drive device, including frequency converter, reducing motor and the power transmission shaft being sequentially connected, the power transmission shaft connect with driving wheel
Connect;
Limit sensors, including the first limit sensors and the second limit sensors, first limit sensors are located at
At driving wheel, second limit sensors are located at driven pulley, and first limit sensors and the second limit sensors are equal
It is connected by PLC with frequency converter.
Under the position-limiting action of limit sensors, antenna holder can ceaselessly carry out front and rear under the driving of reducing motor
Move back and forth, range of movement is limited between the first limit sensors and the second limit sensors, so that antenna can be with
Move back and forth together therewith so that the coverage for the radiofrequency signal that antenna is launched is wider, scan blind spot can be eliminated,
Prevent label scanning leakage.
Further, the cabinet includes top plate, bottom plate, the entrance and exit being oppositely arranged, two sides being oppositely arranged
Wall, the transmission belt is parallel to side wall, and driving wheel and driven pulley are each attached to one end that the top plate connects with side wall, described
Antenna is fixed on antenna holder towards the side inside cabinet.It is arranged such, can cause can be bigger using space inside cabinet.
Further, the quantity of the transmission device and antenna holder is two, respectively positioned at two side-walls;Each
The quantity of antenna on antenna holder is two or more.Two side-walls are respectively provided with antenna holder, increase on each antenna holder
Antenna amount, can make it that the coverage of radiofrequency signal is wider, realize that no dead angle is blind with vertical direction in the horizontal direction
Area.
Further, it is provided with the antenna holder on sliding block, the side wall and is provided with slide bar, the sliding block matching set
It is connected on the slide bar.Sliding block make it that the connection of antenna holder is more firm with combining for litter, and can steadily carry out past
Multiple motion.
Further, the limit sensors are photoelectric sensor, and the detection method of photoelectric sensor has precision high, anti-
Should fast, noncontact the advantages of, and sensor is simple in construction, and flexible form is various.
Further, the two ends of the power transmission shaft connect two driving wheels, the output shaft and biography of the reducing motor respectively
Moving axis is vertically arranged, and is connected between the power transmission shaft and the output shaft of reducing motor by two spiral bevel gears, described to pass
Moving axis is fixed on top plate by bearing block.Being arranged such can realize and can be driven positioned at two sides using a reducing motor
Two driving wheels at wall.
Further, the goods automatically scanning cabinet also includes automatic door unit, including is separately positioned on entrance and exit
The door leaf actuator of the doorframe at place, the door leaf being flexibly connected with the doorframe and the driving door leaf motion, in addition to:
Infrared sensor, is arranged above door leaf, for obtaining the environmental information of automatic door unit entrance side, and sends letter
Number;
Controller B, the controller B is connected with the infrared sensor and door leaf actuator respectively, for basis
The signal that the infrared sensor is sent controls the door leaf actuator to drive the door leaf motion.When operating personnel are in cabinet
During positive doorway, the infrared sensor above door leaf, which is detected with object proximity, can automatically open up cabinet door, realize certainly
The intelligent control of dynamicization, it is convenient and swift.
Further, the goods automatically scanning cabinet also includes touch screen, and the touch screen passes through controller B and automatically-controlled door
System is connected, and the touch screen is connected by controller A with the radio frequency reader.The utility model is used as people by touch screen
Machine interactive interface, coordinates automatic door unit and radio frequency reader, can complete manually operated by touch screen, sends control and refers to
Order, such as open the door and close the door, manual controlled motor is rotated, control the working condition of antenna;It can also check each by touch screen
The state of the job information of individual mechanism, such as all parts, the number of labels read etc..
Further, the door leaf is sliding door leaf, and quantity is two, is provided between the sliding door leaf and cabinet
Conducting foam, the conducting foam is fixed on cabinet, and the cabinet and door leaf are made by steel plate.Steel plate is fabricated to one can
Shield the cabinet of electromagnetic wave, it would be desirable to check label and be integrally placed in cabinet and be identified.The steel plate connection in each face of metal shell
Place and seam crossing are handled with conductive material, shell is interconnected as one, the conductor of monolithic conductive, form faraday cup.
When automatically-controlled door is closed mode, using conducting foam, this elastomeric material is filled between door leaf and cabinet, stops seam therebetween
Gap, the electromagnetic wave that thus cabinet internal antenna is sent has been limited in cabinet, only reads the label in cupboard.It can solve to misread attached
Label this problem that is near and need not reading.
Further, the door leaf interface is L-shaped and forms 90 degree of turning, when two door leafs are in closed mode, institute
Turning is stated to fit with side wall.The door leaf structure being arranged such, can further envelope door leaf and the place production of cabinet joint
Raw space, prevents the leakage of electromagnetic wave, it is to avoid misread the label outside cabinet, it is ensured that read the accuracy of data.
Further, oscillating motor is fixed with the antenna holder, described antenna passes through crank rocker component and pendulum
The output shaft connection of dynamic motor, the crank rocker component includes crank, connecting rod and the rocking bar being sequentially connected, the crank and pendulum
The output shaft connection of dynamic motor, described rocking bar one end connects connecting rod, and the other end connects antenna and rotated around fixing axle, described solid
Dead axle is connected on antenna holder.Crank rocker component can cause antenna to do periodic pitching under the driving of oscillating motor
Motion, so as to increase read range of the antenna in space on above-below direction.
Further, the antenna is circular polarisation RFID antenna, and model Laird 9028, the limit sensors are light
Electric transducer, model Panasonic CX-442, the model Siemens S7-300 series of PLC.
Using above-mentioned technical proposal, including following advantageous effects:
1st, antenna holder can ceaselessly carry out front and rear reciprocating motion under the driving of reducing motor, so that antenna can
To move back and forth together therewith, and crank rocker component can cause antenna to be done under the driving of oscillating motor periodically
Elevating movement, so as to increase read range of the antenna in space on above-below direction, so that its internal antenna institute
The coverage of the radiofrequency signal of transmitting is wider, can eliminate scan blind spot, prevents label scanning leakage.
2nd, automatic door unit, which can automatically detect object proximity, can automatically open up cabinet door, realize the intelligence of automation
Control, it is convenient and swift.
3rd, cabinet is fabricated to by steel plate, and electromagnetic wave is shielded using faraday cup principle, it is possible to resolve is misread nearby and is not required to
This problem of the label to be read.
4th, touch screen possesses extremely strong expandability and versatility as main control device, can pass through a variety of networking modes
Networking, is easy to incorporate in Internet of Things.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, implement below in conjunction with the utility model
Accompanying drawing in example, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described reality
It is a part of embodiment of the utility model to apply example, rather than whole embodiments.Based on the embodiment in the utility model, ability
The every other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality new
The scope of type protection.
In the utility model, term " on ", " under ", "left", "right", "front", "rear", " top ", " bottom ", " interior ", " outer ",
" in ", " vertical ", " level ", " transverse direction ", the orientation of the instruction such as " longitudinal direction " or position relationship be based on orientation shown in the drawings or
Position relationship.These terms are not intended to limit indicated primarily to preferably describe the utility model and embodiment
Device, element or part must have particular orientation, or constructed and operated with particular orientation.
Also, above-mentioned part term is in addition to it can be used to indicate that orientation or position relationship, it is also possible to for representing it
His implication, such as term " on " also be likely used for representing certain relations of dependence or annexation in some cases.For ability
For the those of ordinary skill of domain, concrete meaning of these terms in the utility model can be understood as the case may be.
In addition, term " installation ", " setting ", " being provided with ", " connection ", " connected " " socket " should be interpreted broadly.For example, can
To be to be fixedly connected, it is detachably connected, or monolithic construction;Can mechanically connect, or electrical connection;Can be joined directly together,
Either it is indirectly connected to by intermediary, or is connection internal between two devices, element or parts.For
For those of ordinary skill in the art, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
Unless otherwise indicated, the implication of " multiple " is two or more.
The utility model is described in further detail below by specific embodiment and with reference to accompanying drawing.Fig. 1~Fig. 7
Give embodiment of the present utility model.
As shown in Figures 1 to 3, the utility model provides a kind of goods automatically scanning cabinet, including cabinet, in cabinet
Inside, including:
Transmission device 1, including transmission belt 101, driving wheel 102 and driven pulley 103;
Antenna holder 2, the antenna holder is fixedly connected on transmission belt 101;
Antenna 3, the antenna 3 is arranged on the antenna holder 2, and is connected with radio frequency reader 301;
Drive device 4, including frequency converter 401, reducing motor 402 and the power transmission shaft 403 being sequentially connected, the power transmission shaft
403 are connected with driving wheel 102;
Limit sensors 5, including the first limit sensors 501 and the second limit sensors 502, the described first spacing sensing
Device 501 is located at driving wheel 102, and second limit sensors 502 are located at driven pulley 103, first limit sensors
501 and second limit sensors 502 be connected by PLC 6 with frequency converter 401.
As shown in fig. 6, the specific course of work is:During work, PLC sends control instruction, control to frequency converter
Reducing motor is rotated forward, and drives driving wheel to rotate forward by power transmission shaft, and transmission drives antenna holder to move after a segment distance, when the
When two limit sensors sense antenna holder, produce feedback signal and be transferred to PLC, PLC generation control
Instruction is transmitted to frequency converter, and Frequency Converter Control reducing motor is quickly inverted, and drives driving wheel to reversely rotate by power transmission shaft, transmission
Band drives antenna holder to return round about, when the first limit sensors sense antenna holder, produces feedback signal simultaneously
PLC is transferred to, PLC generation control instruction is transmitted to frequency converter, and Frequency Converter Control reducing motor is rotated forward again,
Driving wheel is driven to rotate forward again by power transmission shaft, transmission belt drives antenna holder to be moved to the first limit sensors, so that
Single pass stroke is completed, so repeatedly, you can realize continuous scan process processing.Antenna is past under the drive of antenna holder
Multiple motion, can read to the label of all angles regional, eliminate scan blind spot.
In the above-described embodiment, specifically, transmission device has selected V belt translation, i.e., using driving wheel, driven pulley and
The combination of transmission belt, is fixed with antenna holder, wherein transmission belt can be flat board band of the prior art, triangle on the belt
Band, circular or cog belt, it is preferred to use cog belt, it is ensured that drive coordination, it is stable, certainly, using cog belt
In the case of, there is the tooth that engagement is thought with the tooth on transmission belt on driving wheel and drive.
It should be noted that V belt translation is a kind of more preferred form of transmission device, it is not practical new to this
The sole limitation of type, transmission device of the present utility model can also have Chain conveyer to replace, i.e., transmission device include drive gear,
Driven gear and chain, antenna holder is fixed on chain and year chain moves back and forth;Transmission device can also be roller bearing
Screw structure, including screw rod and nut, screw rod are connected with drive device, nut connection antenna holder, are driven by drive device
Screw rod rotates the reciprocating motion for realizing nut, so as to drive antenna holder to move back and forth.
The specific connection of antenna holder and transmission belt is applied to the various connected modes among prior art, does not do herein
Specific limitation, mode can be realized is stably connected with mode on the belt by antenna holder, and certain antenna holder is not
It can simultaneously be fixedly connected on two layers up and down of transmission belt, otherwise will be unable to realize function of the present utility model.
On the basis of above-mentioned embodiment, the cabinet include top plate 7, bottom plate 8, the entrance and exit being oppositely arranged,
Two side walls 9 being oppositely arranged, the transmission belt 101 is parallel to side wall 9, and driving wheel 102 and driven pulley 103 are each attached to institute
One end that top plate 8 connects with side wall 9 is stated, the antenna 3 is fixed on antenna holder 2 towards the side inside cabinet.
In the above-described embodiment, the model of reducing motor is preferably RV40-180-25.
On the basis of above-mentioned embodiment, as shown in Figure 4 and Figure 5,2 are fixed with oscillating motor on the antenna holder
16, described antenna 3 is connected by crank rocker component 17 with the output shaft of oscillating motor 16, and the crank rocker component 17 is wrapped
The crank 171 being sequentially connected, connecting rod 172 and rocking bar 173 are included, the crank 171 is connected with the output shaft of oscillating motor 16, described
The one end of rocking bar 173 connects connecting rod 173, and the other end connects antenna 3 and rotated around fixing axle 174, and the fixing axle 174 is connected to
On antenna holder 3.
In the specific course of work, crank rocker component can cause antenna to be done under the driving of oscillating motor periodically
Elevating movement, with reference to the horizontal movement mentioned in above-mentioned embodiment, realize antenna for label signal in whole space
Without blind spot scanning.Specifically, oscillating motor can be plus-minus speed motor of the prior art, torque motor etc., but not be only
One limitation.
On the basis of above-mentioned embodiment, the antenna 3 is circular polarisation RFID antenna, model Laird 9028.
Photoelectric sensor can be trough type photoelectric sensor, correlation type photoelectric sensor, reflector type optoelectronic switch or expansion
It is preferred to use trough type photoelectric sensor in scattered reflection type optoelectronic switch, present embodiment, i.e., an optical transmitting set and one is connect
Device is received Face to face mounted in the both sides composition flute profile photoelectricity of a groove.Photophore can send infrared light or visible ray, in without hindrance feelings
Optical receiver can receive light under condition, but when object to be detected from groove by when, light is blocked, and optoelectronic switch is just acted, output
One switch controlling signal, is switched off or on load current, so as to complete a control action.In the present embodiment, antenna
Support can block light after entering in groove, photoelectric sensor will export a switch controlling signal, and signal is passed into PLC controls
Device processed, and then PLC realizes the change of reducing motor rotation direction by the control to frequency converter.
On the basis of above-mentioned embodiment, the limit sensors be photoelectric sensor, model Panasonic CX-442,
The model Siemens S7-300 series of PLC.
On the basis of above-mentioned embodiment, the quantity of the transmission device and antenna holder is two, is located at respectively
Two side-walls;The quantity of antenna on each antenna holder is two or more.Two side-walls are respectively provided with antenna holder, increase
Antenna amount on each antenna holder, can be that the coverage of radiofrequency signal is wider, equal with vertical direction in the horizontal direction
Realize without dead angle blind area.Specifically, each antenna is connected with same radio frequency reader.
In the above-described embodiment, antenna holder is fixed on the belt, and because its volume is larger, and weight is larger, only
It can make that annexation is insecure and part is more fragile by the single-point fixed form of itself and transmission belt, it is preferable that the antenna
It is provided with support on sliding block 201, the side wall and is provided with slide bar 2011, the matching of sliding block 201 is socketed in the slide bar
On 2011.Sliding block make it that the connection of antenna holder is more firm with combining for litter, and can steadily move back and forth.And
And each combination of sliding block and slide bar between antenna holder and side wall could be arranged to it is multiple, for example the top of antenna holder,
Bottom and centre position are set respectively.Alternatively more preferred mode, is set on antenna holder on sliding block, side wall
Chute is installed, sliding block can reciprocatingly slide in described chute.
It when transmission device only one of which, can be directly connected by the output shaft of reducing motor with driving wheel, drive institute
The conveyor belt motion stated, when using two transmission devices in as above-mentioned embodiment, drive device shows with the connection of the two
Obtain particularly important, it is of course possible to which a set of drive device is respectively configured in each transmission device, but is provided so as to that a set of subtract can be increased
Speed motor and control system, the more cumbersome and space-consuming of control meeting, to solve the above problems, in the base of above-mentioned embodiment
On plinth, the two ends of the power transmission shaft connect two driving wheels respectively, and output shaft and the power transmission shaft of the reducing motor are vertically arranged,
And connected between the power transmission shaft and the output shaft of reducing motor by two spiral bevel gears, the power transmission shaft passes through bearing block
It is fixed on top plate.Being arranged such can realize and can be driven positioned at two of two side-walls drivings using a reducing motor
Wheel.
In the above-described embodiment, the goods automatically scanning cabinet also includes automatic door unit, including is separately positioned on
Doorframe, the door leaf 10 being flexibly connected with the doorframe and the door leaf driving for driving the door leaf 10 to move at entrance and exit
Device 11, in addition to:
Infrared sensor 12, is arranged above door leaf 10, the environmental information for obtaining automatic door unit entrance side, concurrently
Go out signal;
Controller A 13, the controller A 13 are connected with the infrared sensor 12 and door leaf actuator 11 respectively
Connect, the signal for being sent according to the infrared sensor 12 controls the door leaf actuator 11 to drive the door leaf 10 to transport
It is dynamic.
As shown in fig. 7, the specific works mode of the automatic door unit in present embodiment is exemplified below, it is necessary to be read
Label sewing on cloth grass, cloth haystack is placed in the careless car of cloth and transports scanning cabinet to by the careless car of cloth, and cabinet is reached in the careless car of cloth
Before the automatically-controlled door of body, enter in the measurement range of infrared sensor, infrared sensor senses the presence of object, produce signal
Transmit to connected controller A, controller A generation control commands, the described door leaf of control door leaf actuator driving exists
Slided in doorway, realize automatic door opening.Wherein door leaf actuator can be specially stepper motor.
Certainly, in the above-described embodiment, can also include in the prior art through commonly used hand switch button or
Person's remote control controls the opening and closing of door leaf.
On the basis of above-mentioned embodiment, the automatically scanning cabinet also includes touch screen 15, and the touch screen 15 passes through
Controller A 13 is connected with automatic door unit, and the touch screen is connected by controller B 14 with the radio frequency reader 301.This
Utility model is used as human-computer interaction interface by touch screen, coordinates automatic door unit and radio frequency reader, can pass through touch screen
Complete manually operated, send control instruction, such as open the door and close the door, manual controlled motor is rotated, control the working condition of antenna;Also
The job information of each mechanism, such as the state of all parts, the number of labels read etc. can be checked by touch screen
Deng.
On the basis of above-mentioned embodiment, the door leaf be sliding door leaf, and quantity be two, the sliding door leaf with
Conducting foam is provided between cabinet, the conducting foam is fixed on cabinet, the cabinet and door leaf are made by steel plate.Steel
Plate is fabricated to the faraday cup of a maskable electromagnetic wave.In the present embodiment, it is preferred that bottom plate, top plate and side wall are
One monoblock steel plate;Certainly, bottom plate, top plate and side wall can also be spliced by plurality of steel plates, and conductive material is used in seam crossing
Filling, it is to avoid the leakage of electromagnetic wave.
In order to further prevent the leakage of electromagnetic wave, it is to avoid misread the label outside cabinet, in the base of above-mentioned embodiment
On plinth, the door leaf interface is L-shaped and forms 90 degree of turning, when two door leafs are in closed mode, the turning and side wall
Laminating.
More specifically, park and be provided with the stroller for transporting the goods for being accompanied with label, floor for parking for convenience
The guide rail of stroller.
The controller A used in the utility model embodiment and controller B can also be by PLD
The realization of the electronic chip module programming such as (ProgrammableLogicDevice, PLD) or arm processor, its
The product type specifically selected is determined according to the difference required in practical application process performance.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.