CN106778399A - Track equipment RFID location system and its control method - Google Patents
Track equipment RFID location system and its control method Download PDFInfo
- Publication number
- CN106778399A CN106778399A CN201611133961.5A CN201611133961A CN106778399A CN 106778399 A CN106778399 A CN 106778399A CN 201611133961 A CN201611133961 A CN 201611133961A CN 106778399 A CN106778399 A CN 106778399A
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- China
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- rfid
- transmitters
- card reader
- location system
- track equipment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
Abstract
The invention discloses a kind of track equipment RFID location system and its control method, including electronic scale, multiple RFID transmitters, RFID card reader, control communicator and external equipment；The present invention can be positioned quickly；Because RFID information is via cryptoguard, content is difficult to be forged and alters, safe, using contactless mode；Can discrete type, absolute address is accurately detected, not by frequency control；Can continuously, arranged for interval position scale, position scale can both arrange with point-like, it is also possible to continuous arrangement, easy construction, installations, change and safeguard simply；Strong antijamming capability：Using digital near-field communication technology, communication data mistake is less prone to；Suitable for severe industrial environment：Device housings use anti-corrosion solid shell, IP65 degree of protection, long service life；Explosion-proof occasion product can be provided, communication, agreement can be provided.
Description
Technical field
The present invention relates to technical field of electronic communication, more particularly to a kind of track equipment RFID location system and its controlling party
Method.
Background technology
RFID is the abbreviation of Radio Frequency Identification, means radio frequency identification.
Existing track equipment system exists：Stopping a train at a target point, fixed point charging discharging, device location observing and controlling, walking mileage statistics
Deng using when, it is necessary to carry out precise positioning to mobile device, and related data is calculated, is analyzed, such as equipment is provided：
The data such as accurate location, walking mileage.
Realize that the system of function above has following scheme at present：
L is approached（Travel switch）Switch：
Installed in track fixed position side, when equipment be close to up to when, can trigger switch action, after PLC is detected, will be considered that
Equipment reaches switch position.This scheme cannot continuous test position, it is impossible to identification switch centre position, due to being contact
, there is the influence situation about using such as collision, junk, accumulation in formula, cause device damage or cannot normal work, be only applicable to positioning
The occasion that quantity is few, track is accurate.
L rotary encoders：
It is to rotate the number of turns by rotary encoder by the rotary encoder testing equipment position in equipment rotation shaft of wheel
Calculate the mode of wheel rolling distance, a kind of contact working method of relative positioning.Advantage is low cost, range finding length.Have the disadvantage
Due to reasons such as mechanical clearance, wheel-slips, cause cumulative errors, position inaccurate, maintenance workload greatly, be to ensure precision,
The zero point of adjusting the distance in machinery and program is needed constantly to demarcate, using will again transform mechanical structure after a period of time.It is adapted to
Used in the position of noncontact displacement detecting, such as the suspension hook synchronous altitude of overhead traveling crane is detected.
L laser orientation systems：
Laser range finder operationally projects beam of laser to target, and the laser beam that target reflects, timing are received by photoelectric cell
Device determines laser beam from the time for being transmitted into reception, calculates from observer's range-to-go.It is a kind of continuous noncontact digit
Put detection.Advantage is certainty of measurement high, installs simple.Have the disadvantage too short distance and cannot use, by middle propagation medium（Air）
Clean level influence it is larger, and strict guarantee optical system cleaning, while the safe class of laser it is important to note that
It is likely to damage eyes, price is higher.
L Gray bus alignment systems：
Using electromagnetic wave is sent in aerial coil, Gray bus is in magnetic field, and each pair Gray bus heart yearn can produce induced electricity
Kinetic potential.Detection unit is entered line phase and is compared to the signal for receiving.The signal phase phase of the signal phase of cross spider and parallel lines
Together, address is " 0 "；The signal phase of cross spider and the signal phase of parallel lines conversely, address is " 1 ", the address for so sensing
Information is Gray code arrangement, thereby determines that position of the equipment on Gray bus.Advantage is continuous measurement, contactless, shortcoming
It is equipment price high, and continuously must be uninterruptedly arranged along track, install complicated dumb, inside is many twisted-pair feeders, once
Breakage, scene cannot self-healing.
The content of the invention
The purpose of the present invention：A kind of track equipment RFID location system and its control method are provided, can to metallurgy, harbour,
Be present a large amount of orbiting equipment in the industries such as mine, electric power, coal, chemical industry, such as drive a vehicle（Overhead traveling crane）, dump car, walking
Belt, quantifying and loading, charging the equipment such as discharge system, carry out track and be accurately positioned.
To achieve these goals, the technical scheme is that：
A kind of track equipment RFID location system, including electronic scale, multiple RFID transmitters, RFID card reader, control communication
Device and external equipment；Described electronic scale is mounted equidistant with parallel track, and described multiple RFID transmitters are respectively separated peace
On described electronic scale；Described RFID card reader is arranged in moving cart, described RFID card reader with wherein
RFID transmitters described in one or more set up communication；Described RFID card reader is communicated by data wire with described control
Device is connected, and described control communicator passes through communication interface and described external device communication.
Above-mentioned track equipment RFID location system, wherein, described multiple RFID transmitters in spot distribution structure or
The continuously distributed structure of wire, and when mounted, the installation site of described multiple RFID transmitters is fixed and known.
Above-mentioned track equipment RFID location system, wherein, described multiple RFID transmitters send unique sequence respectively
Row number is compared by described control communicator to described RFID card reader with location database, is determined according to corresponding relation
Described RFID card reader position, the i.e. position of moving cart.
A kind of control method of track equipment RFID location system, the method at least comprises the following steps：
Step 1：Moving cart traveling is near described RFID transmitters.
Step 2：RFID transmitters described in one or more send unique sequence numbers to described RFID card reader.
Step 3：Described RFID card reader is by sequence number by the position in described control communicator and location database
Put comparing, determine moving cart position data and be converted into correspondence communication protocol send to described external equipment.
The control method of above-mentioned track equipment RFID location system, wherein, in described step 2 and step 3, if institute
The RFID card reader stated reads the sequence number of the RFID transmitters described in one of them, and described control communicator is from position data
Storehouse compares out the position data of described RFID transmitters as the position of moving cart.
The control method of above-mentioned track equipment RFID location system, wherein, in described step 2 and step 3, if institute
The RFID card reader stated reads the sequence number of the RFID transmitters described in two of which, and described control communicator is from position data
Storehouse compares out the centre position of the position data of the RFID transmitters described in two as the position of moving cart.
The control method of above-mentioned track equipment RFID location system, wherein, in described step 2 and step 3, if institute
The RFID card reader stated reads the sequence number of the RFID transmitters wherein described in three, and described control communicator is from position data
Storehouse compares out the position data of the described RFID transmitters for being located at middle as the position of moving cart.
The control method of above-mentioned track equipment RFID location system, wherein, in described step 2 and step 3, if institute
The RFID card reader stated reads the sequence number of the RFID transmitters wherein described in four, and described control communicator is given up positioned at two
The sequence number position of the described RFID transmitters at end, compares out to going out to be located at described in middle two from location database
The centre position of the position data of RFID transmitters as moving cart position.
The control method of above-mentioned track equipment RFID location system, wherein, in described step 2 and step 3, if institute
The RFID card reader stated reads the sequence number of the RFID transmitters wherein described in five, and described control communicator is from position data
Storehouse compares out the position data of the described RFID transmitters for being located at middle as the position of moving cart.
The control method of above-mentioned track equipment RFID location system, wherein, in described step 2 and step 3, if institute
The RFID card reader stated reads six of which or six sequence numbers of above-described RFID transmitters, by error handle, and will
Last data are used as current data.
The present invention can be positioned quickly；Because RFID information is via cryptoguard, content is difficult to be forged and alters, security
Height, using contactless mode；Can discrete type, accurately detect absolute address, accuracy of detection 5CM, in the absence of accumulative
Error；The carrier frequency of data communication is the standard 13.56Mhz of ISO/IEC 15693, and, in below 1W, communication distance is at 300 millimeters for power
Within, it is not necessary to Xiang Wuguan can apply can be used, not by frequency control；Can continuously, arranged for interval position scale（Position can
To realize that point-like and wire are detected）, position scale can both arrange with point-like, it is also possible to continuous arrangement, easy construction, installation, more
Change maintenance simple；Strong antijamming capability：Using digital near-field communication technology, communication data mistake is less prone to；Suitable for severe
Industrial environment：Device housings use anti-corrosion solid shell, IP65 degree of protection, long service life；Explosion-proof occasion can be provided
（EXD）Product, can provide communication, agreement, RS485, Ethernet, Modbus TCP, Ethernet/IP,
The main flow communication protocol such as Profinet, content of registers has：Position（Word）, distance etc.（DWord）.
Brief description of the drawings
Fig. 1 is the installation diagram of track equipment RFID location system of the present invention.
Fig. 2 is the flow chart of the control method of track equipment RFID location system of the present invention.
Specific embodiment
Embodiments of the invention are further illustrated below in conjunction with accompanying drawing.
Refer to shown in accompanying drawing 1, a kind of track equipment RFID location system, including electronic scale 1, multiple RFID transmitters
2nd, RFID card reader 3, control communicator 4 and external equipment 5；Described electronic scale 1 is mounted equidistant with parallel track, described
Multiple RFID transmitters 2 are respectively separated on described electronic scale 1；It is small that described RFID card reader 3 is arranged on movement
Che Shang, described RFID card reader 3 is set up with the RFID transmitters 2 described in wherein one or more and is communicated；Described RFID reads
Card device 3 is connected by data wire with described control communicator 4, described control communicator 4 by communication interface with it is described
External equipment 5 communicates.External equipment can use PLC device.
Described multiple RFID transmitters 2 are in spot distribution structure or the continuously distributed structure of wire, and when mounted, described
The installation site of multiple RFID transmitters 2 fix and known.When arrangement density of the RFID transmitters 2 on electronic scale 1 is high
When to a certain extent, it is believed that positioning resolution brings up to it is considered that consecutive tracking.But be limited by RFID card reader 3 with
The limitations such as the reading distance of RFID transmitters 2, the arrangement density of RFID transmitters 2 can not be improved infinitely, and select one properly
Density value.
The spot distribution structure or the continuously distributed structure of wire of multiple RFID transmitters 2 correspond to point-like and position and continuous respectively
Positioning, the distribution density of multiple RFID transmitters 2 determines positioning precision, and positioning precision is directly proportional to price.
Described multiple RFID transmitters 2 send unique sequence number to described RFID card reader 3 respectively, by described
Control communicator 4 compared with location database, the described position of RFID card reader 3 is determined according to corresponding relation, that is, move small
The position of car.
When the density of RFID transmitters 2 is high can simultaneously cover multiple RFID transmitters 2 to RFID card reader 3, meaning
RFID card reader 3 while can be communicated with multiple RFID transmitters 2, this certainly will cause the conflict and collision of communication, therefore, must
This problem must be solved, while when multiple sequence numbers of RFID transmitters 2 read, it is necessary to calculate reasonable, standard according to multiple data
True position.
Control communicator 4 calculates device location according to the position of known RFID transmitters 2 through internal algorithm, there is provided logical
Letter interface（Wired or wireless way）, digital communication is carried out with PLC, while 4 self-defined relay output points can be provided, such as
Fruit is not high to positioning accuracy request, it is also possible to provide 4 ~ 20mA outputs, correspondence zero point and terminal.
Refer to shown in accompanying drawing 2, a kind of control method of track equipment RFID location system, the method at least includes as follows
Step：
Step 1：Moving cart traveling is near described RFID transmitters 2.
Step 2：RFID transmitters 2 described in one or more send unique sequence numbers to described RFID card reader 3.
Step 3：Described RFID card reader 3 is by sequence number by described control communicator 4 and location database
Position data compare, determine moving cart position data and be converted into correspondence communication protocol send to described external equipment 5.
In described step 2 and step 3, if the RFID that described RFID card reader 3 reads described in one of them sends
The sequence number of device 2, the position data that described control communicator 4 compares out described RFID transmitters 2 from location database is made
It is the position of moving cart.
In described step 2 and step 3, if the RFID that described RFID card reader 3 reads described in two of which sends
The sequence number of device 2, described control communicator 4 compares out the positional number of the RFID transmitters 2 described in two from location database
According to centre position as moving cart position.
In described step 2 and step 3, if the RFID that described RFID card reader 3 reads wherein described in three sends
The sequence number of device 2, described control communicator 4 is compared out positioned at the RFID transmitters 2 described in centre from location database
Position data as moving cart position.
In described step 2 and step 3, if the RFID that described RFID card reader 3 reads wherein described in four sends
The sequence number of device 2, described control communicator 4 is given up positioned at the sequence number position of the RFID transmitters 2 described in two ends, from position
Database is put to compare out to the centre position for going out the position data for being located at the RFID transmitters 2 described in middle two as movement
The position of dolly.
In described step 2 and step 3, if the RFID that described RFID card reader 3 reads wherein described in five sends
The sequence number of device 2, described control communicator 4 is compared out positioned at the RFID transmitters 2 described in centre from location database
Position data as moving cart position.
In described step 2 and step 3, if described RFID card reader 3 read six of which or six the above
RFID transmitters 2 sequence number, by error handle, and using last data as current data.
Can be got lines crossed by RS485 between the control communicator 4 of RFID card reader 3 and first, the side such as relay, 4-20Ma chips
Formula is transmitted, and can be communicated by ICP/IP agreements between the first control communicator 4 and the second control communicator 5, such as
Modbus Tcp, EthernetIP, Profinet etc..
In sum, the present invention can be positioned quickly；Because RFID information is via cryptoguard, content is difficult to be forged and becomes
Make, it is safe, using contactless mode；Can discrete type, accurately detect absolute address, accuracy of detection 5CM, no
There are cumulative errors；The carrier frequency of data communication is the standard 13.56Mhz of ISO/IEC 15693, and power is in below 1W, communication distance
Within 300 millimeters, it is not necessary to which Xiang Wuguan can apply can be used, not by frequency control；Can continuously, arranged for interval position mark
Chi（Position can realize point-like and wire detection）, position scale can both arrange with point-like, it is also possible to continuous arrangement, construction party
Just, install, change and safeguard simple；Strong antijamming capability：Using digital near-field communication technology, communication data mistake is less prone to；
Suitable for severe industrial environment：Device housings use anti-corrosion solid shell, IP65 degree of protection, long service life；Can provide
Explosion-proof occasion（EXD）Product, can provide communication, agreement, RS485, Ethernet, Modbus TCP, Ethernet/
The main flow communication protocol such as IP, Profinet, content of registers has：Position（Word）, distance etc.（DWord）.
The preferred embodiments of the present invention are the foregoing is only, the scope of the claims of the invention, every utilization is not thereby limited
The equivalent structure transformation that present specification is made, or directly or indirectly with the technology neck for being attached to other Related products
Domain, is included within the scope of the present invention.
Claims (10)
1. a kind of track equipment RFID location system, it is characterised in that：Read including electronic scale, multiple RFID transmitters, RFID
Card device, control communicator and external equipment；Described electronic scale is mounted equidistant with parallel track, and described multiple RFID send
Device is respectively separated on described electronic scale；Described RFID card reader is arranged in moving cart, described RFID
Card reader is set up with the RFID transmitters described in wherein one or more and is communicated；Described RFID card reader passes through data wire and institute
The control communicator connection stated, described control communicator passes through communication interface and described external device communication.
2. track equipment RFID location system according to claim 1, it is characterised in that：Described multiple RFID transmitters
In spot distribution structure or the continuously distributed structure of wire, and when mounted, the installation site of described multiple RFID transmitters is consolidated
It is fixed and known.
3. track equipment RFID location system according to claim 1, it is characterised in that：Described multiple RFID transmitters
Unique sequence number to described RFID card reader is sent respectively, is compared with location database by described control communicator,
Described RFID card reader position, the i.e. position of moving cart are determined according to corresponding relation.
4. a kind of control method for being applied to the track equipment RFID location system described in claim 1-3 any one, it is special
Levy and be：The method at least comprises the following steps：
Step 1：Moving cart traveling is near described RFID transmitters；
Step 2：RFID transmitters described in one or more send unique sequence numbers to described RFID card reader；
Step 3：Described RFID card reader is by sequence number by the positional number in described control communicator and location database
According to comparison, determine the position data of moving cart and be converted into correspondence communication protocol to send to described external equipment.
5. the control method of track equipment RFID location system according to claim 4, it is characterised in that：In described step
Rapid 2 and step 3 in, if described RFID card reader reads the sequence number of the RFID transmitters described in one of them, described control
Communicator processed compares out the position data of described RFID transmitters as the position of moving cart from location database.
6. the control method of track equipment RFID location system according to claim 4, it is characterised in that：In described step
Rapid 2 and step 3 in, if described RFID card reader reads the sequence number of the RFID transmitters described in two of which, described control
The centre position that communicator processed compares out the position data of the RFID transmitters described in two from location database is small as movement
The position of car.
7. the control method of track equipment RFID location system according to claim 4, it is characterised in that：In described step
Rapid 2 and step 3 in, if described RFID card reader reads the sequence number of the RFID transmitters wherein described in three, described control
Communicator processed compares out the position data positioned at the RFID transmitters described in centre as moving cart from location database
Position.
8. the control method of track equipment RFID location system according to claim 4, it is characterised in that：In described step
Rapid 2 and step 3 in, if described RFID card reader reads the sequence number of the RFID transmitters wherein described in four, described control
Communicator processed is given up positioned at the sequence number position of the RFID transmitters described in two ends, is compared out to going out to be located at from location database
The centre position of the position data of the RFID transmitters described in middle two as moving cart position.
9. the control method of track equipment RFID location system according to claim 4, it is characterised in that：In described step
Rapid 2 and step 3 in, if described RFID card reader reads the sequence number of the RFID transmitters wherein described in five, described control
Communicator processed compares out the position data positioned at the RFID transmitters described in centre as moving cart from location database
Position.
10. the control method of track equipment RFID location system according to claim 4, it is characterised in that：Described
In step 2 and step 3, if described RFID card reader reads six of which or six sequences of above-described RFID transmitters
Number, by error handle, and using last data as current data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133961.5A CN106778399A (en) | 2016-12-10 | 2016-12-10 | Track equipment RFID location system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133961.5A CN106778399A (en) | 2016-12-10 | 2016-12-10 | Track equipment RFID location system and its control method |
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| CN106778399A true CN106778399A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611133961.5A Pending CN106778399A (en) | 2016-12-10 | 2016-12-10 | Track equipment RFID location system and its control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422332A (en) * | 2017-06-19 | 2017-12-01 | 广州普华灵动机器人技术有限公司 | A kind of method for being applied to rail engineering machinery positioning based on CPIII control nets |
| CN110737269A (en) * | 2019-10-16 | 2020-01-31 | 暨南大学 | Intelligent control system and method for rail electric flat car |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101197000A (en) * | 2007-11-30 | 2008-06-11 | 江苏天奇物流系统工程股份有限公司 | Position recognition method and device using radio frequency recognizing technology |
| CN103454641A (en) * | 2013-04-27 | 2013-12-18 | 合肥工业大学 | Locating monitoring method based on RFID |
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2016
- 2016-12-10 CN CN201611133961.5A patent/CN106778399A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101197000A (en) * | 2007-11-30 | 2008-06-11 | 江苏天奇物流系统工程股份有限公司 | Position recognition method and device using radio frequency recognizing technology |
| CN103454641A (en) * | 2013-04-27 | 2013-12-18 | 合肥工业大学 | Locating monitoring method based on RFID |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422332A (en) * | 2017-06-19 | 2017-12-01 | 广州普华灵动机器人技术有限公司 | A kind of method for being applied to rail engineering machinery positioning based on CPIII control nets |
| CN110737269A (en) * | 2019-10-16 | 2020-01-31 | 暨南大学 | Intelligent control system and method for rail electric flat car |
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Application publication date: 20170531 |