CN102542305B - Controlling method enabling an RFID (radio frequency identification device) reader-writer to realize environment-friendly reading and writing - Google Patents
Controlling method enabling an RFID (radio frequency identification device) reader-writer to realize environment-friendly reading and writing Download PDFInfo
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- CN102542305B CN102542305B CN201010608233.1A CN201010608233A CN102542305B CN 102542305 B CN102542305 B CN 102542305B CN 201010608233 A CN201010608233 A CN 201010608233A CN 102542305 B CN102542305 B CN 102542305B
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Abstract
The invention provides a controlling method enabling an RFID (radio frequency identification device) reader-writer to realize environment-friendly reading and writing. The reader-writer comprises a central processor, a radio-frequency processing unit, a radio-frequency signal receiver, a radio-frequency signal emitter, a storage and a sensor signal processor. The control method comprises three typical work modes, and signals are transmitted to the central processor by a signal source through various methods and channels. The signal source comprises sensor signals, time lapse, read electronic tags and the like. The central processor is used for computing according to configured information parameters and algorithms, and determining whether read-write instructions need to be sent out, if the read-write instructions need to be sent out, the radio-frequency processing unit is controlled for executing the read-write instructions, and if the read-write instructions do not need to be sent out, the work state information is accumulated. With the adoption of the method, the aim of energy conservation and emission reduction is achieved, and the influences of electromagnetic waves on the ambient environment are reduced.
Description
Technical field
The present invention relates to a kind of control method of rfid interrogator read-write, especially a kind of control method that makes rfid interrogator environmental protection read-write.
Background technology
RFID, REID, is a kind of contactless automatic identification technology, ultimate principle is to utilize the transport property of radiofrequency signal and Space Coupling thereof, realizes the automatic identification to static or mobile object.A radio-frequency recognition system generally comprises several parts such as radio-frequency (RF) tag, read write line, antenna and main frame.
In recent years, RFID technology is developed fast, and has been subject to the attention of more and more enterprises.Wherein, rfid interrogator obtains the ability of the information of hundreds of label objects p.s. and has created huge business opportunity, yet, along with the development of Internet technology and universal, the rfid interrogator being deployed in various environment is more and more, and the read write line of a lot of occasions needs continuous working, and read write line moves always at full capacity, this can consume a large amount of electric power undoubtedly, and electromagnetic wave also produces certain pollution to environment simultaneously.Present we more and more pay attention to low-carbon environment-friendly, green living, so we need a kind of method, not affecting under the prerequisite of read-write efficiency and performance, by the operation control method of optimized device, reach the target of energy-saving and emission-reduction, reduce simultaneously or reduce the impact of electromagnetic wave on surrounding environment.
Summary of the invention
The object of the invention is to solve above-mentioned technical matters, a kind of control method that makes rfid interrogator environmental protection read-write is provided.
Object of the present invention is achieved through the following technical solutions:
A control method that makes rfid interrogator environmental protection read-write, read write line comprises central processing unit, RF processing unit, radio frequency signal receiver, emission of radio frequency signals device, storer, sensor signal processing module, this control method comprises the steps,
Step 1, signal source pass to signal the central processing unit of described read write line;
Step 2, described central processing unit carry out computing according to configuration information parameter and algorithm after receiving signal, judge whether to send read write command;
Step 3, as judgement need to send read write command, central processing unit is controlled described RF processing unit and is carried out read write command; If do not needed, send read write command, central processing unit accumulative total work state information is to described storer.
Further, in described step 1, signal source comprises sensor signal, time control unit, electronic tag thing.
Further, described signal source is sensor signal, and described sensor is infrared inductor, and described control method is infrared induction method, comprise the steps,
When step 1, article process infrared induction region, sensor-triggered signal, signal is connected to the input end of sensor signal processor;
Step 2, pass to after treatment the central processing unit of read write line;
Step 3, central processing unit send read write command to RF processing unit;
Step 4, RF processing unit receive by radio frequency signal receiver and send by emission of radio frequency signals device.
Further, described signal source is time control unit, and described control method is timetable control method, comprise the steps,
The working time section of step 1, configuration read write line, needs beginning and ending time of reading writing working time period;
Step 2, time, time control unit circulation transmitting time look-at-me was to the central processing unit of read write line within the scope of initial time time;
Step 3, central processing unit send read write command to RF processing unit;
Step 4, RF processing unit receive by radio frequency signal receiver and send by emission of radio frequency signals device.
Further, described signal source is electronic tag thing, and described control method is time tag induction control method, comprise the steps,
Step 1, arrange read write tag threshold values interval time and read-write interval time peaked parameter;
Step 2, central processing unit operation dispatching algorithm, the interval that automatically regulates read write command to send to, reduces again the object of read write command number of times to have reached normal read write command;
Step 3, when having electronic tag thing to occur, according to the disappearance that detected electrons label is set of read write tag threshold values interval time, when the working method that enters into step 4 when electronic tag thing disappears being detected, adjust the interval that sends read write command simultaneously;
Step 4, when there is no electronic tag thing, dispatching algorithm according to read write line read-write interval time peaked arrange to detect whether have electronic tag thing to occur, when electronic tag thing being detected and occur, the interval that sends read write command is adjusted in the operation of repeating step three simultaneously.
Beneficial effect of the present invention is mainly reflected in: this control method, not affecting under the prerequisite of read-write efficiency and performance, not only reaches the target of energy-saving and emission-reduction, has reduced simultaneously and reduced the impact of electromagnetic wave on surrounding environment.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Fig. 1: read write line structured flowchart of the present invention.
Fig. 2: integrated control method flowage structure schematic diagram of the present invention.
Embodiment
A kind of control method that makes rfid interrogator environmental protection read-write, read write line includes central processing unit, RF processing unit, radio frequency signal receiver, radio frequency signal receiver, storer, sensor signal processor, this control method comprises three kinds of typical mode of operation, principle of work is summarised as: signal source is by variety of way and channel transmission of signal to central processing unit, and signal source comprises: sensor signal, time control unit, electronic tag thing etc.;
Central processing unit carries out computing according to configuration information parameter and algorithm, judges whether to send read write command;
As needs send read write command, control RF processing unit and carry out read write command;
If do not needed, send read write command, add up work state information.
For three kinds of mode of operations, describe specific works step in detail below:
The first pattern, sensor is assumed to be infrared inductor, comprises the steps,
When step 1, article process infrared induction region, sensor-triggered signal, signal is connected to the input end of sensor signal processor;
Step 2, pass to after treatment the central processing unit of read write line;
Step 3, central processing unit send read write command to RF processing unit;
Step 4, RF processing unit are by radio-frequency signal transceiver sending and receiving.
The second pattern, described control method is timetable control method, comprises the steps,
The working time section of step 1, configuration read write line, needs beginning and ending time of reading writing working time period;
Step 2, time, time control unit circulation transmitting time look-at-me was to central processing unit within the scope of initial time time;
Step 3, central processing unit send read write command to RF processing unit;
Step 4, RF processing unit are by radio-frequency signal transceiver sending and receiving.
The third pattern, described control method is time tag induction control method, comprises the steps,
Step 1, arrange read write tag threshold values interval time and read-write interval time maximal value, etc. parameter;
Step 2, central processing unit operation dispatching algorithm, the interval that automatically regulates read write command to send to, reduces again the object of read write command number of times to have reached normal read write command;
Step 3, when having electronic tag thing to occur, according to the disappearance that detected electrons label thing is set of read write tag threshold values interval time, when the working method that enters into step 4 when electronic tag thing disappears being detected, adjust the interval that sends read write command simultaneously;
Step 4, when there is no electronic tag thing, dispatching algorithm according to read write line read-write interval time peaked arrange to detect whether have electronic tag thing to occur, when electronic tag thing being detected and occur, the interval that sends read write command is adjusted in the operation of repeating step three simultaneously.
embodiment 1
In production line, semi-manufacture post electronic tag, at certain station, rfid interrogator are set, and the product passing through is carried out to read-write operation.
An infrared sensor is installed on streamline, signal is connected to the input end of rfid interrogator, read write line is set and adopts input signal triggering mode, when having product to pass through infrared induction region, read write line is carried out read write command.
Effect: the goods on production line; conventionally very large interval (larger according to the different gaps of product); and streamline also often can be because of adjustment, quality inspection, wait to expect etc. that problem suspends; so when not having goods to pass through infrared induction region; all read write command be can not send, energy consumption and electromagnetic generation significantly reduced.
embodiment 2
Rfid interrogator is installed at gate, campus, reads and goes to school and student wears when classes are over electronic tag chest card, only reads every morning and goes to school that classes are over and go to school the time period that classes are over afternoon.
Read write line is set and adopts time period control mode, in one day, need the beginning and ending time of 4 time periods of reading writing working to be set in read write line simultaneously, rfid interrogator starts read-write motion automatically when each start time arrives, and stops read-write motion when arrive in each closing time.
In one day, read write line is only worked within the time period of appointment, and the plenty of time all can not sent read write command, significantly reduces energy consumption and electromagnetic generation.
embodiment 3
Warehouse gate is installed RFID electronic label read/write, reads the electronic tag data of current goods, and warehouse may have goods to come in and go out for 24 hours at any time, and induction of signal equipment is installed in doorway inconvenience.Goods man-power fork-lift truck movement velocity is 0.5m/s, and electronic label read-write working range is 6 meters.
Read write line is set and adopts label induction control method, the time that carrying out a read write command needs is 40 milliseconds, and Tmin=1000 millisecond is set; Tmax=4000 millisecond; When having goods to pass through, on average in 2 seconds, can read and write electronic tag data, when not having goods to pass through, there is time of 75%～90% can not send read write command, significantly reduce energy consumption and electromagnetic generation.
Control method provided by the invention is induction control method, timetable control method, label induction control method, can certainly control for three kinds of method synthesis, and the control method in above embodiment can be in conjunction with control, and this control flow as shown in Figure 2.Fig. 1 is the read write line structured flowchart of read write line.
The present invention compared with prior art has the following advantages: this control method, not affecting under the prerequisite of read-write efficiency and performance, not only reaches the target of energy-saving and emission-reduction, has reduced simultaneously and reduced the impact of electromagnetic wave on surrounding environment, makes read write line read and write more environmental protection.
The present invention still has multiple concrete embodiment, and all employings are equal to replacement or equivalent transformation and all technical schemes of forming, within all dropping on the scope of protection of present invention.
Claims (1)
1. a control method that makes rfid interrogator environmental protection read-write, read write line comprises central processing unit, RF processing unit, radio frequency signal receiver, emission of radio frequency signals device, storer, sensor signal processing module, this control method comprises the steps,
A, signal source pass to signal the central processing unit of described read write line;
B, described central processing unit carry out computing according to configuration information parameter and algorithm after receiving signal, judge whether to send read write command;
C, as judgement need to send read write command, central processing unit is controlled described RF processing unit and is carried out read write command; If do not needed, send read write command, central processing unit accumulative total work state information is to described storer;
In wherein said step a, signal source comprises sensor, time control unit, electronic tag thing; It is characterized in that: when described signal source is electronic tag thing, described control method is time tag induction control method, comprise the steps,
Step 1, arrange read write tag threshold values interval time and read-write interval time peaked parameter;
Step 2, central processing unit operation dispatching algorithm, the interval that automatically regulates read write command to send to, reduces again the object of read write command number of times to have reached normal read write command;
Step 3, when having electronic tag thing to occur, according to the disappearance that detected electrons label is set of read write tag threshold values interval time, when the working method that enters into step 4 when electronic tag thing disappears being detected, adjust the interval that sends read write command simultaneously;
Step 4, when there is no electronic tag thing, dispatching algorithm according to read write line read-write interval time peaked arrange to detect whether have electronic tag thing to occur, when electronic tag thing being detected and occur, the interval that sends read write command is adjusted in the operation of repeating step three simultaneously.
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| CN103324966A (en) * | 2013-06-14 | 2013-09-25 | 深圳嘉文虹科技有限公司 | Related device for automatically transmitting read-write data |
| CN116992910B (en) * | 2023-09-27 | 2023-12-08 | 深圳市国芯物联科技有限公司 | RFID reader-writer capable of dynamic power control |
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Address after: 215112 Suzhou Industrial Park, Jiangsu Town, the only ting new road, No. 99 Patentee after: JIANGSU ZHONGKE INTELLIGENT SYSTEM Co.,Ltd. Address before: 215112 Suzhou Industrial Park, Jiangsu Town, the only ting new road, No. 99 Patentee before: Jiangsu Zhongke intelligent system Limited by Share Ltd. Address after: 215112 Suzhou Industrial Park, Jiangsu Town, the only ting new road, No. 99 Patentee after: Jiangsu Zhongke intelligent system Limited by Share Ltd. Address before: 215112 Suzhou Industrial Park, Jiangsu Town, the only ting new road, No. 99 Patentee before: JIANGSU CHINA SCIENCES INTELLIGENT ENGINEERING CO.,LTD. |