CN108734041A - A kind of positioning device for searching - Google Patents
A kind of positioning device for searching Download PDFInfo
- Publication number
- CN108734041A CN108734041A CN201810637354.5A CN201810637354A CN108734041A CN 108734041 A CN108734041 A CN 108734041A CN 201810637354 A CN201810637354 A CN 201810637354A CN 108734041 A CN108734041 A CN 108734041A
- Authority
- CN
- China
- Prior art keywords
- attenuator
- data
- reader
- distance
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
Abstract
The invention belongs to power grid ancillary equipment field more particularly to a kind of positioning device for searching.The present invention propose it is a kind of based on control reader reading/writing distance combination fuzzy theory come carry out positioning looking up function scheme, on the one hand the characteristics of combining electronic tag low cost Detection rate, on the one hand combine fuzzy theory propose it is a kind of solution electronic tag can not be accurately positioned distance and direction scheme, the reading/writing distance of reader is controlled including the use of attenuator, and scope control is found in the positioning based on this realization active, it delimited by the input numerical value or remote control thought finding range, on this basis, cycle positioning is carried out by constantly changing attenuator numerical value, to carry out effective position to sense in conjunction with the rotation of control antenna, it is found by the equipment to be positioned corresponding to each electronic tag and electronic tag for constantly recycling positioning and finding from the distant to the near.
Description
Technical field
The invention belongs to power grid ancillary equipment field more particularly to a kind of positioning device for searching.
Background technology
Radio Frequency Identification Technology (RFID) is a kind of non-contact automatic identification technology, which can help people to article
Rapid identification is carried out, is widely used in equipment management and operating mode pattern.
The management that Radio Frequency Identification Technology is applied to electric power tool has carried out trial in some areas, with power grid scale
Expansion, device category and quantity are more and more, in addition each to safeguard, management and handed over using teams and groups personnel and action complexity
It is wrong, it is difficult to equipment effectively coordinate and manage, before this provides good application for Radio Frequency Identification Technology in the field
Scape.The characteristics of electric power tool be type it is various, using frequent, especially because electric power first-aid work is mostly in outdoor progress, if
Standby tool is easily lost, if some important key equipments be retained in repairing scene or open air operation of power networks will be buried it is hidden
Suffer from, it is therefore desirable to be recycled immediately after the completion of repairing work.If existing RFID tag on tool can be utilized to realize positioning work(
It can, you can determine tool location rapidly, prevent from losing or forget.
Invention content
The purpose of the invention is, provides a kind of positioning device for searching, to realize that the quick positioning of low cost is found,
It positions searching offline for indoor and outdoor and solution is provided.
To achieve the above object, the invention adopts the following technical scheme that.
A kind of basic structure of positioning device for searching of the present invention includes communication control module, distance controlling module, distance
Control module；
Communication control module is for realizing the communication between handheld terminal or distance host and reader comprising reader,
Input/output module, wireless transport module and corresponding peripheral circuit, wherein：
A kind of positioning device for searching, including reader, distance controlling module, input/output module, wireless transport module with
And peripheral circuit；Wherein, reader is collected processing with the signal for feeding back electronic tag and knows equipped with radio transmitting and receiving chip
Above-mentioned label signal data are sent to distance controlling module by other electronic tag, input/output module, and distance controlling module will be believed
Result data is subjected to display in handheld terminal after number being handled or host computer is sent it to by input/output module；Read-write
It is provided with asynchronous transmission transceiver in device control module, by different types of signal conversion standard interface or carries out nothing
Line transmits；
Distance controlling module includes mainly microcontroller, power supply, attenuator, angle electrical machinery, rotary angle transmitter；The attenuator
Reader reading/writing distance is controlled by changing its corner, angle electrical machinery is used to drive the deflection of attenuator, rotary angle transmitter to be used for
It is simultaneously fed back to distance controlling module by detection attenuator angle data in real time；Electric rotating machine is used to control the rotation of reading and writing device antenna
Turn to control and receive direction；
The microcontroller receives and stores the instruction inputted by handheld terminal or remote center for executing following procedure；
Read and store label data；Compare label data；The RSSI value for calculating signal, based on above-metioned instruction, below chip microcontroller
Content：
A1, the angle-data that attenuator needs rotate is calculated according to distance segment to be detected, and command adapted thereto is sent to
The control circuit of angle electrical machinery；
A2, lasting regulated attenuator data are changed from small to big with controlling reader reading/writing distance, what acquisition was transmitted by reader
Tag feedback data, until detecting the signal of note to be positioned；And feedback data；
A3, control electric rotating machine rotation pass through 360*n so that the reception direction of reading and writing device antenna changes (n is positive integer)
The cycle detection of degree compares, and determines the highest angular range of signal strength；And to handheld terminal or remote center's feedback result number
According to；
A4, above-mentioned 2 and 3 contents are periodically repeated, and feedback data is modified.
It is to be turned distance segment with corresponding by setpoint distance section and attenuator angle range in the above A1
Angular region carries out fuzzy correspondence.
Feedback signal of the attenuator angle data that the rotary angle transmitter obtains as microcontroller, and converted by A/D
Corresponding control instruction is matched by Fuzzy comparisons afterwards, the control instruction is sent to motor-drive circuit by microcontroller.
The fuzzy rule of the crank degree of the attenuator and the reading/writing distance of reader is, 0 °~15 ° expression 15m, 16 °
~30 ° of expressions 30m, 31 °~50 ° expressions 50m, 51 °~80 ° expressions 80m, 81 °~100 ° expression 100m.
The structure of the support and control antenna includes being arranged on reader or independently arranged antenna mounting platform, position
Antenna fixing axle, the antenna fixing axle inside supporting table are connected with electric rotating machine.
Advantage is：
The present invention proposes one kind based on control reader reading/writing distance combination fuzzy theory to carry out positioning looking up function
Scheme, the characteristics of on the one hand combining electronic tag low cost Detection rate, on the one hand propose one kind in conjunction with fuzzy theory
Solve electronic tag can not be accurately positioned distance and direction scheme, including the use of attenuator control reader read-write away from
From, and scope control is found in the positioning based on this realization active, the input numerical value by thinking or remote control are to searching model
It encloses and delimited, on this basis, cycle positioning is carried out by constantly changing attenuator numerical value, in conjunction with the rotation of control antenna
Come to sense carry out effective position, by constantly recycle positioning and find from the distant to the near to each electronic tag and electricity
The corresponding equipment to be positioned of subtab is found.
Description of the drawings
Fig. 1 is the principle framework figure of specific embodiment；
Fig. 2 is the structural schematic diagram of antenna control structure in embodiment；
Fig. 3 is the implementation process schematic diagram of embodiment fuzzy control.
Specific implementation mode
It elaborates to the invention below in conjunction with specific embodiment.
Its specific implementation mode is：
A kind of basic structure of positioning device for searching of the present invention includes communication control module, distance controlling module, distance
Control module；
For communication control module for realizing the communication between handheld terminal or distance host and reader, it includes read-write to wrap it
Device, input/output module, wireless transport module and corresponding peripheral circuit, system block diagram are as shown in Figure 1.Wherein：
Reader is collected processing with the signal for feeding back electronic tag equipped with radio transmitting and receiving chip and identifies electronics mark
Above-mentioned label signal data are sent to distance controlling module by label, input/output module, and distance controlling module will be at signal
Result data is subjected to display in handheld terminal after reason or host computer is sent it to by input/output module；In the present invention,
Reader is needed using external adjustable antenna in order to control the primary recipient direction of antenna, while phase is gone back on reader
The structure (as shown in Figure 2) for being provided with support and controlling antenna answered；Its basic structure includes that setting is on reader or only
Erect the antenna mounting platform 1 set, the antenna fixing axle 2 inside supporting table, the rotation for driving antenna fixing axle to rotate
Motor 3；Asynchronous transmission transceiver is provided in reader control module, in order to by different types of signal conversion standard
Interface is wirelessly transferred, and to improve data transmission bauds and data-handling efficiency, is ensured in data real-time change
System rapidly can be transmitted and be fed back to data in time in environment；
Input/output module is used to control the input and output of signal, receives what handheld terminal or remote center etc. passed over
Different data, and as needed convert data between inhomogeneity transmission mode, to meet distinct interface or module
The demand of data-transmission mode and efficiency；
Wireless transport module is realized for carrying out Long-range Data Transmission in being uploaded to reader detection data remotely
The heart, either from remote center's reception instruction or as needed to remote center's request data, to prevent the wireless transport module
It is interfered with each other with the wireless transport module in reader, the positioning search routine of reader is also avoided to be affected, be wirelessly transferred mould
Block is to be separately provided and carry out signal isolation using modes such as wireless transparent transmission.
Distance controlling module includes mainly microcontroller, power supply, attenuator, angle electrical machinery, rotary angle transmitter；The attenuator
Reader reading/writing distance is controlled by changing its corner, angle electrical machinery is used to drive the deflection of attenuator, rotary angle transmitter to be used for
It is simultaneously fed back to distance controlling module by detection attenuator angle data in real time；Electric rotating machine is used to control the rotation of reading and writing device antenna
Turn to control and receive direction；
The microcontroller receives and stores the instruction inputted by handheld terminal or remote center for executing following procedure；
Read and store label data；Compare label data；The RSSI value for calculating signal, based on above-metioned instruction, below chip microcontroller
Content：
A5, the angle-data that attenuator needs rotate is calculated according to distance segment to be detected, and command adapted thereto is sent to
The control circuit of angle electrical machinery；
A6, lasting regulated attenuator data are changed from small to big with controlling reader reading/writing distance, what acquisition was transmitted by reader
Tag feedback data, until detecting the signal of note to be positioned；And feedback data；
A7, control electric rotating machine rotation pass through 360*n so that the reception direction of reading and writing device antenna changes (n is positive integer)
The cycle detection of degree compares, and determines the highest angular range of signal strength；And it is anti-to handheld terminal or remote center
Present result data；
A8, above-mentioned 2 and 3 contents are periodically repeated, and feedback data is modified；
Particularly, it in the above A1, is limited by cost and technology, the corner of reader reading/writing distance and attenuator
Data are difficult to point-device correspondence, therefore in the above content, are by setpoint distance section and attenuator corner model
It encloses, distance segment is subjected to fuzzy corresponding (principle is as shown in Figure 3) with corresponding angle range, in fact, in practical applications,
Also very small distance or range need not be accurate to, it is only necessary to be accurate to approximate distance that human eye can be searched clearly and
Range；Hardware and design cost are reduced to simplify positioning and operating procedure based on this, attenuator can be turned
Angle controls stepping design, and it is corresponding so that corresponding angle range is carried out with detection range by experimental data.The attenuator
The fuzzy rule of the reading/writing distance of crank degree and reader is that specifically may be configured as, 0 °~15 ° expression 15m, 16 °~30 ° tables
Show that 30m, 31 °~50 ° expression 50m, indicate 80m, 81 °~100 ° expression 100m by 51 °~80 °.Since attenuator reads reader
Writing the control of distance, there are blind areas, it is impossible to carry out fully effective control to signal, there is reader reading in actual use
The distance feature slightly remote with attenuator command range is write, based on the positioning result purpose for reducing mistake, attenuator is controlled into angle
Progress locating effect is more conform with practical situation after carrying out lag processing after being divided into line range.
In the above A2, to realize the identification identification of specific label, the superelevation using technologies such as EPC inquiries is needed
Frequency marking label technical solution or other have and can distinguish the technical solutions of different label datas, said program technology is more ripe,
It will not be described here, in specific operation process, mainly according to the type of label to be positioned and total number combination cost and effect
Which kind of scheme is the factors such as rate to determine to use particularly, can will be same when occasion contains a large amount of same categories of device or tool in part
Model or the identical tool of function use same class label, to reduce the total amount of data for needing to store and operate, while numerous
In tool can the nearest such tool of orientation distance or from the near to the distant position all such tools successively, by using
Different operating modes finds efficiency to improve the positioning under different situations.
Only principle and foundation structure are introduced in said program, illustrated below in conjunction with specific operation process,
Its specific operation process is：
Electronic tag is set on needing the tool or equipment that position or find in advance, and according to the corresponding tool of each label
Carry out record storage；
When needing to position tool equipment under the situations such as tool or equipment loss, lose the positions such as region in tool
Reader is set；
The storage device or remote center that are gone from read-write read the Information Number of the tool or the corresponding electronic tag of equipment
According to；
Regulated attenuator numerical value is recycled, primarily determines tool or the searching range in the corresponding electronic tag of equipment, until
Electronic tag signal can be obtained, driving reading and writing device antenna rotation determines signal strength by RSSI value, passes through antenna read-write side
To the determining most strong direction of signal or stronger general direction；
It is found along above-mentioned direction, while by adjusting attenuator and antenna rotation being made regularly to carry out positioning repairing
Just, up to the most strong region of positioning signal within the scope of minimum reading/writing distance；
It is searched in above-mentioned smaller range by manual type.
Finally it should be noted that above example is only to illustrate the technical solution of the invention, rather than to this hair
It is bright create protection domain limitation, although being explained in detail to the invention with reference to preferred embodiment, this field it is general
Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the invention, without departing from this
The spirit and scope of innovation and creation technical solution.
Claims (5)
1. a kind of positioning device for searching, which is characterized in that including reader, distance controlling module, input/output module, wireless biography
Defeated module and peripheral circuit；Wherein, reader is collected equipped with radio transmitting and receiving chip with the signal for feeding back electronic tag
Handle and identify that above-mentioned label signal data are sent to distance controlling module, distance controlling by electronic tag, input/output module
Result data is carried out display in handheld terminal after being handled signal or is sent it to by input/output module by module
Position machine；Asynchronous transmission transceiver is provided in reader control module, by different types of signal conversion standard interface
Or it is wirelessly transferred；
Distance controlling module includes mainly microcontroller, power supply, attenuator, angle electrical machinery, rotary angle transmitter；The attenuator passes through
Change its corner control reader reading/writing distance, angle electrical machinery is used to drive the deflection of attenuator, and rotary angle transmitter is for detecting
It is simultaneously fed back to distance controlling module by attenuator angle data in real time；Electric rotating machine for control the rotation of reading and writing device antenna with
Control and receive direction；
The microcontroller receives and stores the instruction inputted by handheld terminal or remote center for executing following procedure；It reads
With storage label data；Compare label data；Calculate the RSSI value of signal, based on above-metioned instruction, chip microcontroller the following contents：
A1, the angle-data that attenuator needs rotate is calculated according to distance segment to be detected, and command adapted thereto is sent to corner
The control circuit of motor；
A2, lasting regulated attenuator data are changed from small to big with controlling reader reading/writing distance, obtain the label transmitted by reader
Feedback data, until detecting the signal of note to be positioned；And feedback data；
A3, control electric rotating machine rotation are spent so that the reception direction of reading and writing device antenna changes by 360*n (n is positive integer)
Cycle detection compares, and determines the highest angular range of signal strength；And to handheld terminal or remote center's feedback result data；
A4, above-mentioned 2 and 3 contents are periodically repeated, and feedback data is modified；
Further include that the electronic tag on different tools can be set, and be stored with depositing for all electronic tag corresponding datas
Storage device.
2. a kind of positioning device for searching according to claim 1, which is characterized in that in the above A1, be by setting away from
From section and attenuator angle range, distance segment is subjected to fuzzy correspondence with corresponding angle range.
3. a kind of positioning device for searching according to claim 2, which is characterized in that the attenuator that the rotary angle transmitter obtains
Feedback signal of the angle data as microcontroller, and after A/D is converted corresponding control instruction, institute are matched by Fuzzy comparisons
It states control instruction and motor-drive circuit is sent to by microcontroller.
4. a kind of positioning device for searching according to claim 2, which is characterized in that the crank degree of the attenuator and read-write
The fuzzy rule of the reading/writing distance of device is, 0 °~15 ° expression 15m, 16 °~30 ° expression 30m, 31 °~50 ° expression 50m, 51 °~
80 ° of expressions 80m, 81 °~100 ° expression 100m.
5. a kind of positioning device for searching according to claim 1, which is characterized in that the structure packet of the support and control antenna
It includes and is arranged on reader or independently arranged antenna mounting platform, the antenna fixing axle inside supporting table, the antenna
Fixing axle is connected with electric rotating machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810637354.5A CN108734041A (en) | 2018-06-20 | 2018-06-20 | A kind of positioning device for searching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810637354.5A CN108734041A (en) | 2018-06-20 | 2018-06-20 | A kind of positioning device for searching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108734041A true CN108734041A (en) | 2018-11-02 |
Family
ID=63930415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810637354.5A Pending CN108734041A (en) | 2018-06-20 | 2018-06-20 | A kind of positioning device for searching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108734041A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275187A (en) * | 2019-07-10 | 2019-09-24 | 郑州轻工业学院 | A kind of high-precision positioner for big-dipper satellite |
| CN110351697A (en) * | 2019-08-16 | 2019-10-18 | 深圳创维－Rgb电子有限公司 | Mobile terminal method for searching, smart television and computer readable storage medium |
| CN110417495A (en) * | 2019-07-31 | 2019-11-05 | 奇酷互联网络科技（深圳）有限公司 | Aerial angle adjusting method, signal projector and storage medium |
| CN113449531A (en) * | 2021-06-25 | 2021-09-28 | 无锡科睿坦电子科技股份有限公司 | Method and device for automatically testing read-write distance of RFID (radio frequency identification) tag |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006275839A (en) * | 2005-03-30 | 2006-10-12 | Osaka Prefecture | Position detection system and position detection method for rfid tag |
| US20070030150A1 (en) * | 2005-08-02 | 2007-02-08 | International Business Machines Corporation | RFID reader having antenna with directional attenuation panels for determining RFID tag location |
| CN201174122Y (en) * | 2008-02-26 | 2008-12-31 | 刘建华 | Automatic control device automatically regulating reading distance |
| CN101667254A (en) * | 2008-09-05 | 2010-03-10 | 上海科识通信息科技有限公司 | Radio frequency identification real-time positioning tracking management system and real-time positioning tracking method thereof |
| CN101750547A (en) * | 2009-07-08 | 2010-06-23 | 中国科学院自动化研究所 | Measuring system and measuring method for power contour of reader-writer antenna |
| CN102394340A (en) * | 2011-06-30 | 2012-03-28 | 潍柴动力股份有限公司 | Antenna adjustment device and method for vehicle active RFID (Radio Frequency Identification) and vehicle controller |
| CN102663328A (en) * | 2012-05-25 | 2012-09-12 | 中山大学 | Method for improving electron label reading efficiency based on power control |
| CN103413110A (en) * | 2013-08-29 | 2013-11-27 | 戴生伟 | Object positioning searching device, assembly and method |
| CN104166825A (en) * | 2014-07-21 | 2014-11-26 | 成都联星微电子有限公司 | RFID-based document accurate positioning method |
| CN205581920U (en) * | 2016-04-19 | 2016-09-14 | 武汉大学 | RFID valuables looks for system based on adjustable radianting capacity |
-
2018
- 2018-06-20 CN CN201810637354.5A patent/CN108734041A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006275839A (en) * | 2005-03-30 | 2006-10-12 | Osaka Prefecture | Position detection system and position detection method for rfid tag |
| US20070030150A1 (en) * | 2005-08-02 | 2007-02-08 | International Business Machines Corporation | RFID reader having antenna with directional attenuation panels for determining RFID tag location |
| CN201174122Y (en) * | 2008-02-26 | 2008-12-31 | 刘建华 | Automatic control device automatically regulating reading distance |
| CN101667254A (en) * | 2008-09-05 | 2010-03-10 | 上海科识通信息科技有限公司 | Radio frequency identification real-time positioning tracking management system and real-time positioning tracking method thereof |
| CN101750547A (en) * | 2009-07-08 | 2010-06-23 | 中国科学院自动化研究所 | Measuring system and measuring method for power contour of reader-writer antenna |
| CN102394340A (en) * | 2011-06-30 | 2012-03-28 | 潍柴动力股份有限公司 | Antenna adjustment device and method for vehicle active RFID (Radio Frequency Identification) and vehicle controller |
| CN102663328A (en) * | 2012-05-25 | 2012-09-12 | 中山大学 | Method for improving electron label reading efficiency based on power control |
| CN103413110A (en) * | 2013-08-29 | 2013-11-27 | 戴生伟 | Object positioning searching device, assembly and method |
| CN104166825A (en) * | 2014-07-21 | 2014-11-26 | 成都联星微电子有限公司 | RFID-based document accurate positioning method |
| CN205581920U (en) * | 2016-04-19 | 2016-09-14 | 武汉大学 | RFID valuables looks for system based on adjustable radianting capacity |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275187A (en) * | 2019-07-10 | 2019-09-24 | 郑州轻工业学院 | A kind of high-precision positioner for big-dipper satellite |
| CN110417495A (en) * | 2019-07-31 | 2019-11-05 | 奇酷互联网络科技（深圳）有限公司 | Aerial angle adjusting method, signal projector and storage medium |
| CN110351697A (en) * | 2019-08-16 | 2019-10-18 | 深圳创维－Rgb电子有限公司 | Mobile terminal method for searching, smart television and computer readable storage medium |
| CN113449531A (en) * | 2021-06-25 | 2021-09-28 | 无锡科睿坦电子科技股份有限公司 | Method and device for automatically testing read-write distance of RFID (radio frequency identification) tag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108734041A (en) | A kind of positioning device for searching | |
| CN209198940U (en) | The automatic Following Car in library | |
| CN201828949U (en) | RFID (radio frequency identification device) node label with environmental parameter detecting function and sensor network based on node label | |
| US9939816B2 (en) | Automated inventory taking moveable platform | |
| CN107244150A (en) | It is a kind of can automatic tracking Intelligent printing machine people | |
| CN101858974A (en) | Positioning system | |
| CN203038111U (en) | Indoor robot positioning and navigating system based on RFID | |
| CN101770564A (en) | Hand-held radio frequency identification (RFID) terminal | |
| CN105678352A (en) | Long distance high speed data transmission system based on ultrahigh frequency RFID | |
| CN106845899A (en) | A kind of electric power warehousing system asset count equipment and its method of work | |
| CN107423927A (en) | A kind of RFID intelligent storages seek goods system and method | |
| CN106936669A (en) | The alignment system and method for the intelligent appliance based on mobile terminal | |
| CN207241188U (en) | It is a kind of can automatic tracking Intelligent printing machine people | |
| CN207731277U (en) | Position-recognizing system based on RFID technique | |
| CN105578592A (en) | Device and system for positioning workers of fully mechanized face | |
| CN204117210U (en) | The online mobile cruising inspection system of a kind of substation equipment based on electric power wireless private network | |
| CN207663484U (en) | Computer room inspection maintenance and management system based on NFC label technology | |
| CN111612108A (en) | Medical equipment position tracking method based on RFID technology | |
| CN205121593U (en) | Positioner | |
| CN202126694U (en) | Stand-cabinet movable three-dimensional radio frequency identification device | |
| CN210757766U (en) | RFID intelligent inventory making robot system based on Internet of things | |
| CN204155288U (en) | The ultrahigh frequency radio frequency identification tag readers of tool aiming function | |
| CN105549059A (en) | Indoor and outdoor positioning system with automatic switching function | |
| CN103578052A (en) | Locating recognizing system based on RFID | |
| CN207380552U (en) | A kind of robot of terrestrial reference positioning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |