CN103473519B - A kind of inspection type radio frequency card reader - Google Patents
A kind of inspection type radio frequency card reader Download PDFInfo
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- CN103473519B CN103473519B CN201310374470.XA CN201310374470A CN103473519B CN 103473519 B CN103473519 B CN 103473519B CN 201310374470 A CN201310374470 A CN 201310374470A CN 103473519 B CN103473519 B CN 103473519B
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- processor
- address
- radio frequency
- primary processor
- card reader
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Abstract
The invention discloses a kind of inspection type radio frequency card reader, including: primary processor;Multiple being respectively connected with described primary processor from processor, each be associated from processor and an address list or address realm, this address list or address realm are for indicating the address of at least one tag card to be identified;Multiple wireless radio frequency modules, each wireless radio frequency modules is connected from processor with one, carries out status poll at this tag card being pointed to from the control of processor in address above mentioned list or address realm, and should be from processor by the status data return obtained every time;Described primary processor is polled from processor the plurality of with default cycle or mode, from respectively obtaining described status data from processor.Inspection type radio frequency card reader proposed by the invention can significantly promote the concurrently identification number of tag card, and by the collaborative work of master and slave processor, can simplify the management to a large amount of tag cards.
Description
Technical field
The present invention relates to computer information processing and communication technical field, particularly relate to one and patrol and examine
Formula radio frequency card reader.
Background technology
Computer information processing and the communication technology have penetrated into all trades and professions, in mine operation are
The life security of protection operating personnel serves huge effect, and one of them exemplary apparatus is exactly
Card reader.Card reader is the critical component of Mine Personnel Positioning System, for the severe ring in down-hole
Border positions and follows the tracks of staff and provide a great convenience.Existing card reader is all passed through
The wireless signal constantly receiving the tag card transmitting entrained by underground operators determines down-hole
The position of operating personnel and zone of action, when personnel's concurrency is bigger, can be due to many
Interfering between the signal that individual tag card is launched causes higher skip rate, the most concurrently identifies
Quantity is generally defined in 100 (the 2 power orders of magnitude of 10), which greatly limits
The use of card reader.In order to identify more operating personnel, it usually needs be equipped with substantial amounts of card reader,
Not only cost sharply increases, and to be managed a large amount of card reader that these are separate also
It is extremely difficult.
Summary of the invention
For overcoming problem above, the present invention proposes following technical scheme:
A kind of inspection type radio frequency card reader, it is characterised in that including:
Primary processor;
Multiple it is respectively connected with described primary processor from processor, each from processor and one
Address list or address realm are associated, and this address list or address realm are for instruction at least
The address of individual tag card to be identified;
Multiple wireless radio frequency modules, each wireless radio frequency modules is connected from processor with one,
The mark that should be pointed in address above mentioned list or address realm from the control of processor sticks into
Row status poll, and should be from processor by the status data return obtained every time;
Described primary processor is taken turns from processor the plurality of with default cycle or mode
Ask, from respectively obtaining described status data from processor.
Further, described in described primary processor will obtain automatically with default cycle or mode
Status data transfers gives the host computer being connected with described card reader.
Further, when described primary processor receives the request of data from host computer, described
Primary processor by obtain described status data transfers to host computer.
Further, described primary processor is first before by described status data transfers to host computer
Described status data is encapsulated and/or is compressed into Frame, then by supreme for this data frame transfer
Position machine.
Further, each described from processor self the described address list of storage or address model
Enclose, or
From processor from the outside described address list of reading or address realm described in each.
Further, described address list or address realm are distributed by described primary processor.
Further, each wireless radio frequency modules carries out status poll to tag card and specifically includes:
Described wireless radio frequency modules each in above-mentioned address list or address realm successively
Address sends wireless signal, has, if received, the answer signal that the tag card of this address returns,
Then record this address;Without receiving answer signal, then continue to send nothing to next address
Line signal, until all addresses in described address list or address realm are detected complete, note
The address of record i.e. constitutes described status data.
Further, described primary processor with default cycle or mode to the plurality of from process
Device is polled specifically including:
Described primary processor coupled sends request of data from processor, often to each successively
Individual will return from acquired all status datas after receiving this request of data from processor is led
Processor.
Further, each from processor will from acquired all status datas return main from
First all status datas encapsulated before reason device and/or be compressed into Frame, then by these data
Frame returns primary processor.
Further, described primary processor and transmit number by high-speed bus between processor
According to.
Further, by wired mode or wireless mode between described primary processor and host computer
Transmission data.
Further, described primary processor and/or be single-chip microcomputer from processor.
Further, described wireless radio frequency modules includes the radio frequency core supporting RFID two-way communication
Sheet.
Further, when the I/O port disposal ability exceeding primary processor from the quantity of processor
Time, between processor, it is connected at least one multi-channel analog at described primary processor with the plurality of
Switch, carries out multiplexed port.
Inspection type radio frequency card reader proposed by the invention can significantly promote tag card
Concurrently identification number, and by the collaborative work of master and slave processor, can simplify in a large number
The management of tag card.
Accompanying drawing explanation
Fig. 1 is the structure chart of the inspection type radio frequency card reader described in the embodiment of the present invention;
Fig. 2 is the exemplary process flow figure from processor;
Fig. 3 is the exemplary process flow figure of primary processor.
Detailed description of the invention
The technology of the present invention below in conjunction with the accompanying drawings and is further illustrated by detailed description of the invention
Scheme.
Fig. 1 is the inspection type radio frequency card reader described in the preferred embodiment of the present invention
Structure chart.As it is shown in figure 1, the radio frequency card reader 100 described in the present embodiment includes: main
Processor 101;Multiple from processor 102a, 102b ... 102n, respectively with described main place
Reason device 101 is connected;Multiple wireless radio frequency modules 103a, 103b ... 103n, Mei Gewu
Line radio-frequency module and one are connected from processor.Described primary processor and can selecting from processor
Any realization of the prior art, such as both of which can realize in single-chip microcomputer mode, this
Embodiment preferred ARM series and 51 series monolithics, described primary processor with from processor it
Between transmit data, such as spi bus by high-speed bus, described wireless radio frequency modules has double
To twireless radio-frequency communication function, such as can be by supporting the NRF24L01 of RFID two-way communication
Chip realizes the communication function of its core.
Each it is associated (not shown) from processor and an address list or address realm,
This address list or address realm are for indicating the address of at least one tag card to be identified.Ground
Location list includes the address of one or more tag card to be identified, and address realm the most only includes one
Individual initial address and a termination address, be positioned at the institute in the range of this initial address and termination address
Having address is all this scope being responsible for from processor identifying.
Primary processor or host computer can be each from processor distribution address list or ground in advance
Location scope, the most each memory space saving it in self from processor;Certainly, also
Then can exist from processor from address list or address realm described in processor external maintenance
Read from outside in real time when needing.
Each wireless radio frequency modules is connected from processor with one, at this from the control of processor
It is pointed to the tag card in address above mentioned list or address realm and carries out status poll, and will be every time
The status data obtained returns should be from processor.Each wireless radio frequency modules carries out shape to tag card
The exemplary process diagram that the concrete mode of state poll is shown in Figure 2.In this example, with ground
Illustrate as a example by the scope of location, it addition, the most completed from processor it is correlated with to indicate
Tag card in address realm patrol and examine operation, can be each from processor give one " patrol
Inspection complement mark position " indicate its mode of operation, such as represent with 0 and not yet complete to patrol and examine, with
1 expression is complete patrols and examines.
Next the idiographic flow of status poll is described in detail.After powering on or resetting, first will treat
The initial address (i.e. lowest address) that the destination address patrolled and examined is set in described address realm, and
" complement mark position will be patrolled and examined " and be reset to 0;Then, wireless radio frequency modules is to above-mentioned target ground
Location sends wireless signal, if the address tag card identical with this destination address receives this wireless communication
Number, then send answer signal to described wireless radio frequency modules;If wireless radio frequency modules receives this
Answer signal then represents that have that the tag card of this destination address is positioned at card reader effectively reads model
In enclosing, then this destination address is recorded;Phase is then represented without receiving answer signal
Answer tag card not in effective read range of card reader, the most do not record this destination address;Also
That is, the address here by the tag card being recorded only in effective read range is reflected
The state of tag card, naturally it is also possible to carry out the status information of record identification card by other means,
Here is omitted.Up to the present, an address is patrolled and examined and is complete, it follows that
Current destination address is added 1 and obtains next destination address, then according to same as above
The destination address that this is new is patrolled and examined by mode, until all addresses in described address realm
Detected complete.Can judge whether that all addresses are detected in the following manner complete, i.e.
Judge whether the newest destination address is more than the termination address of described address realm (maximally
Location), if it is, represent the detection completed all addresses, now will " patrol and examine
Flag bit " set is 1, patrols and examines end, the address above recorded i.e. constitutes this address model
Enclose the status data of interior tag card;Otherwise continue the detection to this fresh target address.
The foregoing describe and from processor, the tag card in address realm associated there is carried out
Status poll or the detailed process patrolled and examined, below explanation primary processor to coupled each from from
Reason device carries out status poll or the process patrolled and examined.
Primary processor can be carried out from processor the plurality of according to default cycle or mode
Poll, from respectively obtaining described status data from processor.Fig. 3 gives exemplary patrolling
Inspection flow process, in this example, is respectively given n the numeral from 0 to n-1 from processor respectively
Numbering, refers to certain with a numeral numbering concrete from processor.After powering on or resetting,
First whether be set to 0 by be detected from processor numbering N, from processor N then judge should
Be complete and the tag card in its address realm patrolled and examined work, such as may determine that this from from
" patrolling and examining complement mark position " of reason device, patrols and examines if 1 expression and is complete, if 0
Represent and not yet complete.
Judged by above, if tag card is patrolled and examined by current being complete from processor N,
Then primary processor should send data request signal from processor N, when this receives from processor to this
Will be from acquired all status data transfers to primary processor after data request signal.In order to subtract
Data can also be packaged and/or squeeze operation, then by few data volume before being transmitted
It is transmitted further to primary processor.After primary processor has received, this is set to from processor numbering N
(N+1) %n, wherein % represent modulo operation, n represent be connected with primary processor from processor
Sum.It follows that carry out state reading according to mode same as above to from processor N,
Until all be detected from processor complete.Can judge whether in several ways all from
Processor is detected complete, such as, may determine that whether the most up-to-date numbering N is equal to 0, if
It is, then it represents that completed, to all detections from processor, otherwise to continue this from processor N
Detection.
Judged by above, if currently not yet completing tag card is patrolled and examined from processor N,
Then skip this to continue from processor, the next one is performed status read operation from processor N.
Primary processor is after each status data obtaining tag card from processor, it is also possible to will obtain
Data be transferred to the host computer that is connected with this card reader in the way of actively or passively, by upper
These data are further processed by position machine.Wherein, the mode of active transmission refers to described master
The described status data transfers of acquisition is automatically given and institute by processor with default cycle or mode
State the host computer that card reader is connected, for example, it is possible to arrange a numerical value conduct the most flexibly
Primary processor uploads the time interval of data to host computer, and once time interval meets this numerical value,
Primary processor is the most spontaneous transmits data to host computer.Certainly, these data can also be according to actual need
Ask and modify.It addition, described passive transmission means refers to that primary processor will not be spontaneous to upper
Machine transmission data, only when described primary processor receives the request of data from host computer, institute
Stating primary processor just can be by the described status data transfers of acquisition to host computer.So, host computer
The time can uploaded according to self-demand active control data, and, by periodically to
The primary processor of card reader sends data request signal, is capable of equally obtaining with specific interval
The purpose of data.
In order to reduce data volume and communication load, described status data is being passed by described primary processor
First described status data can also be encapsulated and/or be compressed into Frame before being defeated by host computer,
The most again by this data frame transfer to host computer.It addition, the primary processor of card reader and host computer
Between existing by RS485, TCP/IP, bluetooth or WiFi etc. or may go out in the future
Existing communication mode transmission data.
For ensureing real-time, each address realm distributed from processor is less than 2000,
When tag card is in card reader wireless signal coverage, the less radio-frequency connected from processor
Module spontaneous emission wireless signal is to receiving the answer signal time not over 500us, and one is patrolled
Overhaul period amounts to less than 1s.Further, when exceeding main process from the quantity of processor
During the I/O port disposal ability of device, can by described primary processor with the plurality of from from
The mode connecting at least one multiway analog switch between reason device carries out multiplexed port, the most permissible
The multiway analog switches such as CD4067 are used to realize above-mentioned functions.
Inspection type radio frequency card reader proposed by the invention can significantly promote tag card
Concurrently identification number, and by the collaborative work of master and slave processor, can simplify in a large number
The management of tag card.
Partial content in the technical scheme that in the present invention, each embodiment provides can pass through software
Programming realization, its software program is stored in the storage medium that can read, storage medium such as:
Hard disk, CD or floppy disk in computer.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, all
Within protection scope of the present invention should being included in.
Claims (10)
1. an inspection type radio frequency card reader, it is characterised in that including:
Primary processor；
Multiple it is respectively connected with described primary processor from processor, each is associated from processor and an address list or address realm, this address column
Table or address realm are for indicating the address of at least one tag card to be identified；
Multiple wireless radio frequency modules, each wireless radio frequency modules is connected from processor with one, is pointed to address above mentioned row at this from the control of processor
Tag card in table or address realm carries out status poll, and should be from processor by the status data return obtained every time；
Described primary processor is polled from processor the plurality of with default cycle or mode, from respectively obtaining described status data from processor.
2. radio frequency card reader as claimed in claim 1, it is characterised in that
The described status data transfers obtained is given, with default cycle or mode, the host computer being connected with described card reader by described primary processor automatically.
3. radio frequency card reader as claimed in claim 1, it is characterised in that
When described primary processor receives the request of data from host computer, described primary processor by obtain described status data transfers to host computer.
4. radio frequency card reader as claimed in claim 2 or claim 3, it is characterised in that
Described status data was first encapsulated before by described status data transfers to host computer and/or is compressed into Frame by described primary processor, then should
Data frame transfer is to host computer.
5. radio frequency card reader as claimed in claim 1, it is characterised in that
Each described from processor self the described address list of storage or address realm, or
From processor from the outside described address list of reading or address realm described in each.
6. radio frequency card reader as claimed in claim 1, it is characterised in that
Described address list or address realm are distributed by described primary processor.
7. radio frequency card reader as claimed in claim 1, it is characterised in that each wireless radio frequency modules carries out status poll to tag card and specifically wraps
Include:
Described wireless radio frequency modules each address in above-mentioned address list or address realm successively sends wireless signal, has this address if received
Tag card return answer signal, then record this address；Without receiving answer signal, then continue to send wireless signal to next address,
Until all addresses in described address list or address realm are detected complete, the address of record i.e. constitutes described status data.
8. radio frequency card reader as claimed in claim 1, it is characterised in that described primary processor with default cycle or mode to the plurality of from
Processor is polled specifically including:
Described primary processor coupled sends request of data from processor to each successively, each from processor after receiving this request of data by oneself
The all status datas obtained return primary processor.
9. radio frequency card reader as claimed in claim 8, it is characterised in that each return at all status datas that oneself is obtained from processor
First all status datas encapsulated before primary processor and/or be compressed into Frame, then this Frame being returned primary processor.
10. radio frequency card reader as claimed in claim 3, it is characterised in that
Described primary processor and transmit data by high-speed bus between processor, by wired mode or wireless between described primary processor and host computer
Mode transmits data；Described primary processor and/or be single-chip microcomputer from processor；Described wireless radio frequency modules includes the radio frequency supporting RFID two-way communication
Chip；
When exceeding the I/O port disposal ability of primary processor from the quantity of processor, it is connected between processor with the plurality of at described primary processor
At least one multiway analog switch, carries out multiplexed port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310374470.XA CN103473519B (en) | 2013-08-23 | 2013-08-23 | A kind of inspection type radio frequency card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310374470.XA CN103473519B (en) | 2013-08-23 | 2013-08-23 | A kind of inspection type radio frequency card reader |
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| Publication Number | Publication Date |
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| CN103473519A CN103473519A (en) | 2013-12-25 |
| CN103473519B true CN103473519B (en) | 2016-08-31 |
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| CN201310374470.XA Expired - Fee Related CN103473519B (en) | 2013-08-23 | 2013-08-23 | A kind of inspection type radio frequency card reader |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104794813B (en) * | 2014-01-16 | 2018-09-04 | 浙江融创信息产业有限公司 | IC card card sending system, read-write implement, black and white lists processing method and processing device |
| CN107423649B (en) * | 2017-08-02 | 2020-05-12 | 北京瑞华高科技术有限责任公司 | Method and device for searching card reader |
| CN108600189B (en) * | 2018-04-02 | 2021-01-26 | 合肥美的电冰箱有限公司 | Equipment after-sale monitoring system and method |
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|---|---|---|---|---|
| CN1662920A (en) * | 2002-06-26 | 2005-08-31 | 诺基亚公司 | System, apparatus, and method for effecting network connections via wireless devices using radio frequency identification |
| CN201001123Y (en) * | 2006-12-29 | 2008-01-02 | 武汉理工大学 | Wireless sensor network node |
| CN101881828A (en) * | 2009-05-08 | 2010-11-10 | 深圳市爱特智能系统有限公司 | Underground personnel tracking and positioning information management method and system thereof |
| CN102508518A (en) * | 2011-11-02 | 2012-06-20 | 青岛金弘测控技术发展有限公司 | Tablet personal computer with multiple radio frequency modules |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7920827B2 (en) * | 2002-06-26 | 2011-04-05 | Nokia Corporation | Apparatus and method for facilitating physical browsing on wireless devices using radio frequency identification |
-
2013
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1662920A (en) * | 2002-06-26 | 2005-08-31 | 诺基亚公司 | System, apparatus, and method for effecting network connections via wireless devices using radio frequency identification |
| CN201001123Y (en) * | 2006-12-29 | 2008-01-02 | 武汉理工大学 | Wireless sensor network node |
| CN101881828A (en) * | 2009-05-08 | 2010-11-10 | 深圳市爱特智能系统有限公司 | Underground personnel tracking and positioning information management method and system thereof |
| CN102508518A (en) * | 2011-11-02 | 2012-06-20 | 青岛金弘测控技术发展有限公司 | Tablet personal computer with multiple radio frequency modules |
Non-Patent Citations (1)
| Title |
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| 基于射频技术的多功能巡检仪;苏丽华等;《仪表技术与传感器》;20100228;第37-38页 * |
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| CN103473519A (en) | 2013-12-25 |
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