CN102147871B - State switching method for wireless tag arranged on train - Google Patents
State switching method for wireless tag arranged on train Download PDFInfo
- Publication number
- CN102147871B CN102147871B CN 201110054623 CN201110054623A CN102147871B CN 102147871 B CN102147871 B CN 102147871B CN 201110054623 CN201110054623 CN 201110054623 CN 201110054623 A CN201110054623 A CN 201110054623A CN 102147871 B CN102147871 B CN 102147871B
- Authority
- CN
- China
- Prior art keywords
- identification tag
- wireless identification
- instruction
- data
- trains
- 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.)
- Active
Links
Images
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention relates to a state switching method for a wireless tag arranged on a train. The method comprises the following steps of: receiving an awakening signal by the wireless tag, electrifying the wireless tag to enter a read-only state, and continuously sending first designated data in a mode of frames of first designated number; judging whether a first state switching instruction is received; if so, executing the next step; otherwise, repeating the step; making the wireless tag enter a read-write state; judging whether the received instruction is a second state switching instruction by the wireless tag; and returning to the read-only state, and sending the data required by the second state switching instruction in a form of frames, wherein a second designated number of data required by the second state switching instruction is sent. The state switching method for the wireless tag arranged on the train has the following advantages that: the state conversion of the wireless tag is realized, and train card number can be sent and other operations expected by users can also be performed when the train runs at a low speed.
Description
Technical field
The present invention relates to field of wireless data communication, more particularly, relate to a kind of installation wireless identification tag state switching method ON TRAINS that makes.
Background technology
Only have the i.e. reading mode of a kind of working method based on the automatic car identification working method of radio-frequency (RF) identification (RFID) technology on the Chinese Railway now, the train radio label sends the continual circulation of the 120bit data in the storer.This kind pattern is in train high-speed cruising process, identification has certain advantage to the train license number, but when the train slow running, because the circulation of data sends, reader and data acquisition equipment will collect too much repeating data, this is not only the redundancy of data, also is the waste in the whole communication process.Simultaneously, if train slow running, the user also may hope obtain other data on the train or carry out other operations except hope receives the train card number, for example: obtain railway car brake-cylinder pressure data or the parameter of the RFID wireless identification tag on the train is arranged etc.Therefore, a kind of RFID solution that can the high low speed application demand of self-adaptation train, except can accurately receiving the train card number when the train high-speed cruising, accurately receive the train card number when slow running, wireless identification tag (RFID wireless identification tag) state switching method that can also obtain desirable other information of user just becomes necessary.
Summary of the invention
The technical problem to be solved in the present invention is, the above-mentioned defective that can only send the card number of installation wireless identification tag ON TRAINS for prior art, provide a kind of can be at train transition status when high, low speed is moved, thereby so that not only can send the train card number when the train slow running, that can also carry out other operations that the user wishes makes installation wireless identification tag state switching method ON TRAINS.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of installation wireless identification tag state switching method ON TRAINS that makes, comprise the steps:
A) wireless identification tag receives wake-up signal, powers on to enter a read states, with continuous first specific data that sends of the mode of frame, sends altogether the frame of the first specified quantity;
B) wireless identification tag continues to send described the first specific data with the form of frame, and judges whether to receive the first status switching instruction; In this way, carry out next step; Otherwise, repeat this step;
C) wireless identification tag enters read-write state, receives instruction, as receives instruction, carries out next step; Otherwise, repeat this step;
D) wireless identification tag is resolved received instruction, judges whether it is the second status switching instruction, in this way, carries out next step, otherwise, carry out described the second status switching instruction assigned operation that receive, non-and return step B);
E) return a read states and send the data that described the second status switching instruction requires with the form of frame, the data that described the second status switching instruction requires send the second specified quantity altogether, and return step B).
Make in the installation wireless identification tag state switching method ON TRAINS of the present invention, described the first specific data is to comprise that the wireless identification tag identification code of wireless identification tag identity is or/and the data that show the wireless identification tag attribute of setting in advance.
Make in the installation wireless identification tag state switching method ON TRAINS, in described steps A of the present invention) in, first specific data comprised in the frame; Send altogether the first specified quantity frame, described the first quantity is the fixed number of setting in advance.
Make in the installation wireless identification tag state switching method ON TRAINS of the present invention, described step B) in, the change frequency of the electromagnetic intensity in its space of living in judged whether to receive described the first state conversion instruction when described wireless identification tag was idle by its antenna.
Make in the installation wireless identification tag state switching method ON TRAINS described step B of the present invention) further comprise the steps:
The electromagnetic intensity change count in its space of living in when B1) idle to described wireless identification tag antenna;
B2) judge that described count value whether greater than setting threshold values, in this way, is judged as and receives the first state conversion instruction; Otherwise, return step B1).
Make in the installation wireless identification tag state switching method ON TRAINS described step C of the present invention) further comprise the steps:
C1) wireless identification tag is converted to read-write state, begins to receive instruction;
C2) judge whether to receive instruction, in this way, carry out next step, otherwise, this step repeated.
Make in the installation wireless identification tag state switching method ON TRAINS described step C2 of the present invention) in further comprise: wireless identification tag stops to send data, transfers receive data to.
Make in the installation wireless identification tag state switching method ON TRAINS described step D of the present invention) in the instruction that receives by parsing, obtain described command content, and then judge whether the second status switching instruction of the described instruction that receives.
Make in the installation wireless identification tag state switching method ON TRAINS described step D of the present invention) in the operation of non-the second status switching instruction appointment comprise: read data in the wireless identification tag storage unit, write data in the storage unit of described wireless identification tag and/or change the configuration parameter of described wireless identification tag.
Make in the installation wireless identification tag state switching method ON TRAINS described step e of the present invention) in a frame comprise the data of described second a status switching instruction requirement, send altogether the second specified quantity frame; Described the second specified quantity is the fixed value of setting in advance.
Implement the installation wireless identification tag state switching method ON TRAINS that makes of the present invention, have following beneficial effect: since send comprising of some the first specific data (comprising being installed in RFID wireless identification tag card number on the rail vehicle) afterwards, detect and the first status switching instruction whether occurs, in this way, detecting the second reading instruction whether occurs, thereby beginning other operations (comprise and read other data or write other data).The train card number not only can be sent when realizing the conversion of wireless identification tag state and then realizing the train slow running, other operations that the user wishes can also be carried out.
Description of drawings
Fig. 1 is the operational flowchart that the present invention makes wireless identification tag among the installation wireless identification tag state switching method embodiment ON TRAINS;
Fig. 2 is reader operation process flow diagram among the described embodiment;
Fig. 3 is the position view of rail vehicle and wireless identification tag among the described embodiment, reader.
Embodiment
Embodiments of the present invention is further illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, make among the installation wireless identification tag state switching method embodiment ON TRAINS in the present invention, the described operating process that is installed in the wireless identification tag (RFID wireless identification tag) on the rail vehicle has comprised following steps:
Step S11 powers on, enter a read states: in this step, the above-mentioned wireless identification tag that is installed on the rail vehicle enters into the reach of surface-based reader owing to rail vehicle, sense the electromagnetic wave that above-mentioned reader sends, and then by being waken up in the dormant state, powering on and start working.Above-mentioned wireless identification tag power on start working in, this wireless identification tag always enters a read states.Under a read states, wireless identification tag can only send the first specific data of prior setting.The first specific data normally is installed in the identification card number of RFID wireless identification tag on the rail vehicle.In the present embodiment, above-mentioned the first specific data comprises that also this wireless identification tag is installed in a Position Number in the train except the identification card number that comprises above-mentioned this wireless identification tag, and for example, which saves the compartment.Certainly, above-mentioned the first specific data is to write in advance and be stored in the above-mentioned wireless identification tag.In this step, wireless identification tag is just read it and send and gets final product.
Step S12 sends the first specific data of the first specified quantity frame continuously: in this step, this wireless identification tag sends above-mentioned the first specific data with the form of frame, specifically, this wireless identification tag is put into above-mentioned the first specific data in the Frame, this Frame is sent again.In the present embodiment, only place first specific data in the above-mentioned Frame.In this step, this frame of the first specific data that comprises that this wireless identification tag sends has some, and frame very little may cause reader not receive; And too many frame might cause temporal delaying.So in the written or printed documents step, this wireless identification tag sends the individual Frame that has comprised the first specific data of the first specified quantity continuously.The first specified quantity also is a fixed value of setting in advance certainly, and its value can be chosen after considering, and for example, can choose between 5-10, usually represents above-mentioned the first specified quantity with N.Wireless identification tag sends N frame the first specific data (train card number data) and can not receive before any instruction (comprising the state conversion instruction) finishing.
Step S13 continues to send the first specific data: in this step, owing to sent the Frame of above-mentioned the first specified quantity, so, can continue to send above-mentioned Frame, simultaneously, this wireless identification tag begins monitoring and whether receives the first state conversion instruction, in the present embodiment, wireless identification tag is by in sending the gap, its antenna is in the time of the free time, and the number of times whether variation of the electromagnetic intensity by antenna induction space of living in reaches appointment judges whether to receive the first state conversion instruction.
Does step S14 judge whether to receive the first state conversion instruction? in this step, judge whether to receive the first state conversion instruction, namely judge the antenna free time, whether the number of times that the electromagnetic field in its residing space changes reaches the number of times of setting, as reach, judge and receive the first status command, execution in step S15; Otherwise, judge and do not accept above-mentioned the first state conversion instruction, jump to step S13.
Step S15 is transformed into read-write state and receives instruction: in this step, wireless identification tag is because receive above-mentioned the first state conversion instruction, so be transformed into read-write state by a read states.That is to say, this wireless identification tag is under read-write state, stop to send the first above-mentioned specific data, and change accepting state over to and begin to receive the instruction that sends to this wireless identification tag, usually, these instructions send out (workflow about reader or ground receiving equipment is described after a while) by being installed in ground reader (or ground receiving equipment).
Is it the second state conversion instruction that step S16 receives instruction? in this step, this wireless identification tag judges whether to receive instruction and whether the second state conversion instruction of the data that receives, if do not receive instruction, then repeats this step; That is to say, if this wireless identification tag does not receive instruction, can rest on above-mentioned accepting state always, no longer send data, until leave the reach of above-mentioned reader; As receiving instruction, the instruction that then receives by resolving this obtains command content and judges whether the second state conversion instruction of the instruction that receives, if so, execution in step S17; Otherwise, execution in step S19.In the present embodiment, this second state conversion instruction is the same with other instructions to have unique operational code, but its operand can change, so the instruction that receives just can judge whether the second state conversion instruction in case resolved.
Step S17 is transformed into a read states: in this step, because wireless identification tag has received the second state conversion instruction, therefore, this wireless identification tag is processed above-mentioned the second state conversion instruction, takes out the information of the data of carrying in the second state conversion instruction, its requirement sends and is transformed into a read states.Specifically, in this step, be actually the represented action (must be identical) of operational code that begins to carry out the second state conversion instruction, and take out the operand (can be different) of the second state conversion instruction.A kind of specific situation is that above-mentioned the second conversion instruction has the operational code of prior agreement, when finding that the instruction that receives is this operational code, just represents that the instruction that receives is the second state conversion instruction.
Step S18 sends the second state specific data of the second specified quantity frame: in this step, wireless identification tag takes out the data (being the aforesaid operations number) of above-mentioned the second state conversion instruction requirement, and with the form of frame it is sent.Specifically, this wireless identification tag is put into the data that above-mentioned the second conversion instruction requires in the Frame, this Frame is sent again.In the present embodiment, only place the data of second a conversion instruction requirement in the above-mentioned Frame.In this step, this frame of the data that the second conversion instruction requires that comprises that this wireless identification tag sends has some, and the frame of quantity may cause reader not receive very little; And the frame of too many quantity might cause temporal delaying.So in the written or printed documents step, this wireless identification tag sends the individual Frame that has comprised the data of the second conversion instruction requirement of the second specified quantity continuously.The second specified quantity also is a fixed value of setting in advance certainly, and its value can be chosen after considering, and for example, can choose between 5-10.It is worth mentioning that in this step, the value of above-mentioned the first specified quantity and the second specified quantity can be identical, also can be different.Wireless identification tag returns step S13 after executing this step.
Step S19 carries out the desired operation of non-the second state conversion instruction: in this step, owing to learn that by the instruction that parsing receives the instruction that this wireless identification tag receives not is above-mentioned the second conversion instruction, but other instruction, for example, data are configured above-mentioned wireless identification tag or the instruction of the change of setting or parameter by writing, so this wireless identification tag is carried out the operation of its command request that receives, the data of for example, it being carried are write this wireless identification tag assigned address etc.After executing this step, return step S13.
Fig. 2 shows the workflow of surface-based reader in the present embodiment, and its workflow with the wireless identification tag shown in Fig. 1 cooperates, and the common wireless identification tag state of realizing installing ON TRAINS switches.As shown in Figure 2, its step is as follows:
Step S21 receives the first specific data that label sends: in this step, reader receives the first specific data that the wireless identification tag enter its reach sends, certainly, as previously mentioned, these first specific datas are included in and send to above-mentioned reader in the Frame.
Step S22 the first data receiver is finished: in this step, this reader receives the first specific data, finishes the reception of the first specific data.
Step S23 sends the first state conversion instruction: in this step, this reader sends the first state conversion instruction, after this instruction is sensed by the above-mentioned wireless identification tag that enters this reader reach, this wireless identification tag will be changed its state, namely no longer send data, therefore, if after above-mentioned the first state conversion instruction sends, reader is no longer received data, shows that this wireless identification tag receives above-mentioned the first state conversion instruction; If after above-mentioned the first state conversion instruction sent, reader was still received data, thinks that then this wireless identification tag does not receive above-mentioned the first state conversion instruction, normally train is high-speed cruising, and this wireless identification tag has moved out of the reach of reader.
Does step S24 receive data? in this step, does above-mentioned reader judge whether it still receives data? if so, execution in step S25; If not, jump to step S26 and carry out.
Step S25 continues receive data: in this step, above-mentioned reader continues receive data, no longer sends the second state conversion instruction.After carrying out this step, jump to step S22.
Step S26 sends the second state conversion instruction: in this step, above-mentioned reader judges that above-mentioned wireless identification tag receives the first state conversion instruction, and namely train is at slow running.Therefore, this reader sends the second state conversion instruction and receives to above-mentioned wireless identification tag.
Does step S27 have data to return in the fixed time? in this step, described reader in setting-up time, transfers the data that accepting state sends to receive this wireless identification tag to after sending above-mentioned the second state conversion instruction; If at the appointed time, there are data to turn back to reader, then jump to step S25; If there are not data to return, then return step S26.
For wireless identification tag, if wireless identification tag does not receive the first state conversion instruction (step S13) that reader sends, wireless identification tag will return the first specific data and be modulated to the variation of gap detection antenna space of living in radio-frequency field (electromagnetic field) amplitude of ' 0 ' (with ' 1 ' expression antenna is modulated in the reflection wave communication, represented antenna not to be modulated with ' 0 ') at antenna continuing circulation under the reading mode; When if wireless identification tag is in reading mode, reader sends the first state conversion instruction, wireless identification tag can be modulated to the variation to electromagnetic field intensity of ' 0 ' gap detection, when the number of times that detects above-mentioned field intensity variation when wireless identification tag in the certain hour (setting in advance) reaches the threshold value of setting, wireless identification tag will enter read-write mode (such as step S15), and wireless identification tag can carry out the sequence of operations such as reading and writing according to the instruction that reader sends under read-write mode.Receive the instruction (such as step S16) that reader sends if be in the wireless identification tag of read-write mode, then need to judge whether the second state conversion instruction, if not the second state conversion instruction, wireless identification tag will carry out reading and writing or other operations according to this command request; If the second state conversion instruction, wireless identification tag will enter a reading mode again and M frame (representing the second specified quantity with M) data are returned in circulation, these data are specified user data in train card number data and the second state conversion instruction.But the specific radio label enters the variety of way of circulation return data behind the reading mode in the second state conversion instruction, and this mode is the combination of train card number data and part or all of user data.Wireless identification tag is after the M frame data are returned in a reading mode and circulation, and wireless identification tag will continue to circulate under a reading mode and returns the specified data of the second state conversion instruction and receive the first state conversion instruction.
For above-mentioned surface-based reader, when wireless identification tag passed through the radio frequency place of ground arrangement for reading, ground arrangement for reading (reader) began to receive the first specific data that wireless identification tag returns.After the ground arrangement for reading successfully received the first specific data that is stored in the wireless identification tag, the ground arrangement for reading sent the first state conversion instruction.After the first state conversion instruction was sent, if there are data to return, receive data then was until the ground arrangement for reading successfully receives data; If countless certificates are returned, then the ground arrangement for reading sends the second state conversion instruction, in the time T of setting in advance, if countless certificate is returned, then continues to send the second state conversion instruction; If there are data to return, receive data then is until the ground arrangement for reading successfully receives data.
Fig. 3 is the position view of rail vehicle and wireless identification tag among the embodiment, reader.Its course of work is as follows: a wireless identification tag is set on each rail vehicle, and rail vehicle interconnects, and when train passes through the radio-frequency field of ground arrangement for reading, the wireless identification tag that is loaded on the rail vehicle will sequentially enter the radio frequency place of ground arrangement for reading.In Fig. 3, when TagA(is contained in a wireless identification tag on the rail vehicle) when entering the radio frequency place of ground arrangement for reading, the ground arrangement for reading begins to receive that TagA returns is stored in the first specific data (train card number data) among the TagA; When the ground arrangement for reading receive successfully that TagA returns be stored in the first specific data among the TagA after, the ground arrangement for reading sends the first state conversion instruction.After the first state conversion instruction is sent, if data are arranged to be returned, there are two kinds of situations, the first situation is that TagB(is contained in the wireless identification tag on another rail vehicle) also do not enter the radio frequency place that radio frequency is read on ground, TagA can not carry out the state conversion, still at lasting return data, ground read the data that receive appoint so be TagA return be stored in the first specific data among the TagA; The second situation is because train running speed is very fast, TagA has passed through the radio frequency place of ground arrangement for reading, TagB enters returning of its first specific data of beginning behind the radio frequency place of ground arrangement for reading, this moment, receive data can receive the first specific data of storing among the TagB, had guaranteed the correct reception of train card number data.If countless certificates are returned, there are two kinds of situations, the first situation is that TagA switches to read-write mode from a reading mode, the first specific data is returned in not recycle; The second situation is the radio frequency place of built on stilts arrangement for reading of TagA, has guaranteed that the train card number data of TagA are correctly identified by the ground arrangement for reading; Afterwards, the ground arrangement for reading sends the second state conversion instruction, instruction is sent rear reader and judges whether have data to return in setting-up time T, if countless certificates are returned, there are two kinds of situations, the first situation is that TagA fails to receive the second state conversion instruction, and need to resend the second state conversion instruction this moment, allows TagA can correctly receive the second state conversion instruction; The second situation is the radio frequency place of built on stilts arrangement for reading of TagA, and TagB does not also enter the radio frequency place of ground arrangement for reading, and resend the second state conversion instruction this moment, will can not affect the reception of data; If data are arranged to be returned, there are again two kinds of situations, the first situation is that TagA returns train card number data and user data according to the requirement of the second state conversion instruction, this moment, receive data can receive train card number data and the user data of TagA, so that when the train slow running, can not waste communication channel, can also receive more user data except receiving train card number data; The second situation is the radio frequency place of built on stilts reading of TagA radio frequency, and TagB has entered the radio frequency place of ground arrangement for reading, TagB begins to return the first specific data of storing among the TagB, this moment, receive data can receive the train card number data of storing among the TagB, had guaranteed the correct reception of the first specific data.
As mentioned above, technical scheme has in the present embodiment solved when wireless identification tag passes through arrangement for reading radio frequency place, ground at a high speed, the ground arrangement for reading can receive train card number data, and when wireless identification tag low speed passes through, can also receive more user data when receiving train card number data (the first specific data), realize that wireless identification tag adjusts the demand of its state automatically with the train speed height.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. one kind makes installation wireless identification tag state switching method ON TRAINS, it is characterized in that, comprises the steps:
A) wireless identification tag receives wake-up signal, powers on to enter a read states, with continuous first specific data that sends of the mode of frame, sends altogether the frame of the first specified quantity;
B) wireless identification tag continues to send described the first specific data with the form of frame, and judges whether to receive the first status switching instruction; In this way, carry out next step; Otherwise, repeat this step;
C) wireless identification tag enters read-write state, receives instruction, as receives instruction, carries out next step; Otherwise, repeat this step;
D) wireless identification tag is resolved received instruction, judges whether it is the second status switching instruction, in this way, carries out next step, otherwise, carry out described the second status switching instruction assigned operation that receive, non-and return step B);
E) return a read states and send the data that described the second status switching instruction requires with the form of frame, the data that described the second status switching instruction requires send the second specified quantity altogether, and return step B).
2. the installation wireless identification tag state switching method ON TRAINS that makes according to claim 1 is characterized in that, described the first specific data is to comprise that the wireless identification tag identification code of wireless identification tag identity is or/and the data that show the wireless identification tag attribute of setting in advance.
3. the installation wireless identification tag state switching method ON TRAINS that makes according to claim 2 is characterized in that, in described steps A) in, first specific data comprised in the frame; Send altogether the first specified quantity frame, described the first quantity is the fixed number of setting in advance.
4. the described installation wireless identification tag state switching method ON TRAINS that makes of any one according to claim 1-3, it is characterized in that, described step B) in, the change frequency of the electromagnetic intensity in its space of living in judged whether to receive described the first state conversion instruction when described wireless identification tag was idle by its antenna.
5. the installation wireless identification tag state switching method ON TRAINS that makes according to claim 4 is characterized in that described step B) further comprise the steps:
The electromagnetic intensity change count in its space of living in when B1) idle to described wireless identification tag antenna;
B2) judge that described count value whether greater than setting threshold values, in this way, is judged as and receives the first state conversion instruction; Otherwise, return step B1).
6. the installation wireless identification tag state switching method ON TRAINS that makes according to claim 5 is characterized in that described step C) further comprise the steps:
C1) wireless identification tag is converted to read-write state, begins to receive instruction;
C2) judge whether to receive instruction, in this way, carry out next step, otherwise, this step repeated.
7. the installation wireless identification tag state switching method ON TRAINS that makes according to claim 6 is characterized in that described step C2) in further comprise: wireless identification tag stops to send data, transfers receive data to.
8. the installation wireless identification tag state switching method ON TRAINS that makes according to claim 7, it is characterized in that, described step D) instruction that receives by parsing in obtains described command content, and then judges whether the second status switching instruction of the described instruction that receives.
9. the installation wireless identification tag state switching method ON TRAINS that makes according to claim 8, it is characterized in that described step D) in the operation of non-the second status switching instruction appointment comprise: read data in the wireless identification tag storage unit, write data in the storage unit of described wireless identification tag and/or change the configuration parameter of described wireless identification tag.
10. the installation wireless identification tag state switching method ON TRAINS that makes according to claim 9 is characterized in that described step e) in a frame comprise the data of described second a status switching instruction requirement, send altogether the second specified quantity frame; Described the second specified quantity is the fixed value of setting in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110054623 CN102147871B (en) | 2011-03-08 | 2011-03-08 | State switching method for wireless tag arranged on train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110054623 CN102147871B (en) | 2011-03-08 | 2011-03-08 | State switching method for wireless tag arranged on train |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102147871A CN102147871A (en) | 2011-08-10 |
| CN102147871B true CN102147871B (en) | 2013-05-01 |
Family
ID=44422127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110054623 Active CN102147871B (en) | 2011-03-08 | 2011-03-08 | State switching method for wireless tag arranged on train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102147871B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103020672B (en) * | 2012-11-23 | 2015-10-28 | 深圳市远望谷信息技术股份有限公司 | Wireless electronic tag during train driving and on it carries out the method for data interaction |
| CN104809486B (en) * | 2014-01-24 | 2018-05-11 | 深圳市远望谷信息技术股份有限公司 | Train number recognition label is set to change the method and device of sending mode at work |
| CN111274837B (en) * | 2020-01-20 | 2023-11-21 | 上海坤锐电子科技有限公司 | Reader-writer, tag control method and device, tag reading-writing system and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101124750A (en) * | 2005-03-18 | 2008-02-13 | 富士通株式会社 | Communication system in passenger and freight transporting means |
| EP1916616A1 (en) * | 2006-10-23 | 2008-04-30 | Fujitsu Ltd. | Method and apparatus for response control of RFID tag, RFID system, RFID tag, response control information generating program storage medium and response control program storage medium |
| CN101767596A (en) * | 2009-12-31 | 2010-07-07 | 华南理工大学 | Temporary speed-restriction early warning system based on active tag and realization method thereof |
-
2011
- 2011-03-08 CN CN 201110054623 patent/CN102147871B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101124750A (en) * | 2005-03-18 | 2008-02-13 | 富士通株式会社 | Communication system in passenger and freight transporting means |
| EP1916616A1 (en) * | 2006-10-23 | 2008-04-30 | Fujitsu Ltd. | Method and apparatus for response control of RFID tag, RFID system, RFID tag, response control information generating program storage medium and response control program storage medium |
| CN101767596A (en) * | 2009-12-31 | 2010-07-07 | 华南理工大学 | Temporary speed-restriction early warning system based on active tag and realization method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 宋若刚等.《基于现场总线技术的城轨交通列车运行监控***》.《铁道学报》.2002,第24卷(第1期),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102147871A (en) | 2011-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101533480B (en) | Active rfid tag | |
| CN102147871B (en) | State switching method for wireless tag arranged on train | |
| CN101770598A (en) | Active frequency identification label, system and identification method | |
| CN103106381A (en) | Method and device for multi-reader anti-collision | |
| CN103136498B (en) | The method of reading electronic labels data and device under multi reader/writer environment | |
| CN103020672B (en) | Wireless electronic tag during train driving and on it carries out the method for data interaction | |
| US20080122625A1 (en) | Lower power battery-assisted rfid tag having improved recognition distance, and wake-up method thereof | |
| EP2183699A1 (en) | A method and reader to conduct a label query in a radio frequency identification system | |
| CN209471480U (en) | Automobile key control system, key and electronic lock based on bank card | |
| CN106778418A (en) | It is a kind of to realize the device and method that label efficiently reads | |
| CN110059514A (en) | Method for writing data, NFC label, NFC device and storage medium | |
| CN101916354A (en) | Radio frequency identification method and reader | |
| CN101394279A (en) | RFID server access apparatus | |
| CN110135211B (en) | Method and device capable of rapidly and accurately checking number of RFID radio frequency tags | |
| CN106339652A (en) | RFID (radio frequency identification) device for internet-of-vehicle terminal | |
| CN101739536A (en) | Method for reading and writing tags in radio-frequency recognition system and reader-writer | |
| CN104517140A (en) | RFID multi-card-in-one integration method | |
| CN205453691U (en) | Dual -frenquency near field communication integrated system of quick -witted many cards | |
| DE60319102T2 (en) | METHOD FOR READING A VARIETY OF NON-CONTACT DATA CARRIES, INCLUDING ANTICOLLISION SCHEME | |
| CN104573587B (en) | A kind of ambiguity path recognition methods with bidirectional communication function | |
| CN103489016A (en) | RFID anti-collision read-write device and control method thereof | |
| CN108182372A (en) | A kind of active RFID record card device based on bluetooth | |
| CN104077626A (en) | Digital display electronic shipping space label and label recognition and warehouse management achieving method thereof | |
| US20150161421A1 (en) | Apparatus and method for controlling supply of power to radio frequency identification tag | |
| DE102016109779A1 (en) | Reinforced near-field communication device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |