CN102542305A - 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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- CN102542305A CN102542305A CN2010106082331A CN201010608233A CN102542305A CN 102542305 A CN102542305 A CN 102542305A CN 2010106082331 A CN2010106082331 A CN 2010106082331A CN 201010608233 A CN201010608233 A CN 201010608233A CN 102542305 A CN102542305 A CN 102542305A
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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 sections such as RF tag, read write line, antenna and main frame.
In recent years, the RFID technology is developed fast, and has received 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 with popularize; The rfid interrogator that is deployed in the various environment is more and more, and the read write line of a lot of occasions needs continuous working, and read write line is operation at full capacity always; 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; Under the prerequisite that does not influence read-write efficiency and performance, reach the target of energy-saving and emission-reduction through the operation control method of optimizing equipment, reduce or reduce the influence of electromagnetic wave simultaneously to surrounding environment.
Summary of the invention
The objective 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.
The object of the invention is realized through following technical scheme:
A kind of 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 comprise the steps,
Step 1, signal source pass to signal the central processing unit of said read write line;
Step 2, said central processing unit carry out computing according to configuration information parameter and algorithm after receiving signal, judge whether to need to send read write command;
Step 3, need to send read write command like judgement, then central processing unit is controlled said RF processing unit and is carried out read write command; As need not send read write command, then central processing unit accumulative total work state information is to said storer.
Further, signal source comprises sensor signal, time control unit, electronic tag thing in the said step 1.
Further, said signal source is a sensor signal, and said sensor is an infrared inductor, and said control method is the infrared induction method, comprise the steps,
When step 1, article process infrared induction zone, sensor-triggered signal, signal are connected to the input end of sensor signal processor;
Step 2, pass to the central processing unit of read write line after treatment;
Step 3, central processing unit send read write command and give RF processing unit;
Step 4, RF processing unit receive through radio frequency signal receiver and send through the emission of radio frequency signals device.
Further, said signal source is a time control unit, and said control method is the 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 given the central processing unit of read write line in the zero-time scope time;
Step 3, central processing unit send read write command and give RF processing unit;
Step 4, RF processing unit receive through radio frequency signal receiver and send through the emission of radio frequency signals device.
Further, said signal source is the electronic tag thing, and said control method is the time tag induction control method, comprise the steps,
Step 1, be provided with read write tag threshold values interval time and the read-write interval time peaked parameter;
Step 2, central processing unit operation dispatching algorithm are regulated the interval that read write command sends to automatically, accomplish the purpose that the normal read-write order reduces the read write command number of times again to reach;
Step 3, when the electronic tag thing occurs, according to the disappearance that the detected electrons label is set of read write tag threshold values interval time, when detecting the working method that enters into step 4 when the electronic tag thing disappears, the interval of read write command is sent in adjustment simultaneously;
Step 4, when not having the electronic tag thing; Dispatching algorithm detects according to read write line read-write peaked setting interval time whether the appearance of electronic tag thing is arranged; When detecting the electronic tag thing and occur, the operation of repeating step three, the interval of read write command is sent in adjustment simultaneously.
Beneficial effect of the present invention is mainly reflected in: this control method not only reaches the target of energy-saving and emission-reduction under the prerequisite that does not influence read-write efficiency and performance, has reduced and reduced the influence of electromagnetic wave to surrounding environment simultaneously.
Description of drawings
Below in conjunction with accompanying drawing technical scheme 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 synoptic 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, and principle of work is summarised as: signal source is transmitted signal through variety of way and channel and is given 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 need to send read write command;
Send read write command like needs, then control RF processing unit and carry out read write command;
As need not send read write command, then add up work state information.
To three kinds of mode of operations, specify concrete job step below:
First kind of pattern, sensor is assumed to be infrared inductor, comprises the steps,
When step 1, article process infrared induction zone, sensor-triggered signal, signal are connected to the input end of sensor signal processor;
Step 2, pass to the central processing unit of read write line after treatment;
Step 3, central processing unit send read write command and give RF processing unit;
Step 4, RF processing unit send and receive through radio-frequency signal transceiver.
Second kind of pattern, said control method is the 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 given central processing unit in the zero-time scope time;
Step 3, central processing unit send read write command and give RF processing unit;
Step 4, RF processing unit send and receive through radio-frequency signal transceiver.
The third pattern, said control method is the time tag induction control method, comprises the steps,
Step 1, be provided with read write tag threshold values interval time and the read-write interval time maximal value, etc. parameter;
Step 2, central processing unit operation dispatching algorithm are regulated the interval that read write command sends to automatically, accomplish the purpose that the normal read-write order reduces the read write command number of times again to reach;
Step 3, when the electronic tag thing occurs, according to the disappearance that detected electrons label thing is set of read write tag threshold values interval time, when detecting the working method that enters into step 4 when the electronic tag thing disappears, the interval of read write command is sent in adjustment simultaneously;
Step 4, when not having the electronic tag thing; Dispatching algorithm detects according to read write line read-write peaked setting interval time whether the appearance of electronic tag thing is arranged; When detecting the electronic tag thing and occur, the operation of repeating step three, the interval of read write command is sent in adjustment simultaneously.
Embodiment 1
Semi-manufacture post electronic tag on the production line, at certain station rfid interrogator are set, and the product that passes through is carried out 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 adopts the input signal triggering mode, during through the infrared induction zone, read write line is carried out read write command as product.
Effect: the goods on the production line; Usually very big interval (bigger) according to the different gaps of product; And streamline also through regular meeting because adjustment, quality inspection, wait to expect etc. that problem suspends; So when not having goods to pass through the infrared induction zone, all can not send read write command, significantly cut down the consumption of energy and electromagnetic generation.
Embodiment 2
Rfid interrogator is installed at the gate, campus, reads the electronic tag chest card that the student is worn when classes are over of going to school, and 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 adopts the 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 the read write line simultaneously; Rfid interrogator starts read-write motion automatically when each start time arrives, when arrive in each closing time, stop read-write motion.
Read write line is only worked in the time period of appointment in one day, and the plenty of time all can not sent read write command, significantly cuts down the consumption of energy and electromagnetic generation.
Embodiment 3
Warehouse gate is installed the RFID electronic label read/write, reads the electronic tag data of current goods, and the warehouse had goods in 24 hours at any time comes in and goes out, and induction of signal equipment is installed in doorway inconvenience.Goods manpower fork truck movement velocity is 0.5m/s, and the electronic label read-write working range is 6 meters.
Read write line is set adopts the label induction control method, the time that carrying out a read write command needs is 40 milliseconds, and the Tmin=1000 millisecond is set; The Tmax=4000 millisecond; When goods is current, on average in 2 seconds, can read and write electronic tag data, when not having goods pass through, there is time of 75%～90% can not send read write command, significantly cut down the consumption of energy and electromagnetic generation.
Control method provided by the invention is induction control method, timetable control method, label induction control method, can certainly be three kinds of method synthesis controls, and the control method among the promptly above embodiment can combine control, and this control flow is as shown in Figure 2.Fig. 1 then 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 only reaches the target of energy-saving and emission-reduction under the prerequisite that does not influence read-write efficiency and performance, has reduced and reduced the influence of electromagnetic wave to surrounding environment simultaneously, 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 all drop within the scope of requirement protection of the present invention.
Claims (5)
1. control method that makes rfid interrogator environmental protection read-write; It is characterized in that: read write line comprises central processing unit, RF processing unit, radio frequency signal receiver, emission of radio frequency signals device, storer; The sensor signal processing module, this control method comprises the steps
Step 1, signal source pass to signal the central processing unit of said read write line;
Step 2, said central processing unit carry out computing according to configuration information parameter and algorithm after receiving signal, judge whether to need to send read write command;
Step 3, need to send read write command like judgement, then central processing unit is controlled said RF processing unit and is carried out read write command; As need not send read write command, then central processing unit accumulative total work state information is to said storer.
2. a kind of control method that makes rfid interrogator environmental protection read-write according to claim 1, it is characterized in that: signal source comprises sensor signal, time control unit, electronic tag thing in the said step 1.
3. a kind of control method that makes rfid interrogator environmental protection read-write according to claim 2, it is characterized in that: said signal source is a sensor signal, and said sensor is an infrared inductor, and said control method is the infrared induction method, comprises the steps,
When step 1, article process infrared induction zone, sensor-triggered signal, signal are connected to the input end of sensor signal processor;
Step 2, pass to the central processing unit of read write line after treatment;
Step 3, central processing unit send read write command and give RF processing unit;
Step 4, RF processing unit receive through radio frequency signal receiver and send through the emission of radio frequency signals device.
4. a kind of control method that makes rfid interrogator environmental protection read-write according to claim 2, it is characterized in that: said signal source is a time control unit, and said control method is the 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 given the central processing unit of read write line in the zero-time scope time;
Step 3, central processing unit send read write command and give RF processing unit;
Step 4, RF processing unit receive through radio frequency signal receiver and send through the emission of radio frequency signals device.
5. a kind of control method that makes rfid interrogator environmental protection read-write according to claim 2, it is characterized in that: said signal source is the electronic tag thing, and said control method is the time tag induction control method, comprise the steps,
Step 1, be provided with read write tag threshold values interval time and the read-write interval time peaked parameter;
Step 2, central processing unit operation dispatching algorithm are regulated the interval that read write command sends to automatically, accomplish the purpose that the normal read-write order reduces the read write command number of times again to reach;
Step 3, when the electronic tag thing occurs, according to the disappearance that the detected electrons label is set of read write tag threshold values interval time, when detecting the working method that enters into step 4 when the electronic tag thing disappears, the interval of read write command is sent in adjustment simultaneously;
Step 4, when not having the electronic tag thing; Dispatching algorithm detects according to read write line read-write peaked setting interval time whether the appearance of electronic tag thing is arranged; When detecting the electronic tag thing and occur, the operation of repeating step three, the interval of read write command is sent in adjustment simultaneously.
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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. |