CN104700135A - Chained network positioning system and method - Google Patents
Chained network positioning system and method Download PDFInfo
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- CN104700135A CN104700135A CN201510145009.6A CN201510145009A CN104700135A CN 104700135 A CN104700135 A CN 104700135A CN 201510145009 A CN201510145009 A CN 201510145009A CN 104700135 A CN104700135 A CN 104700135A
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Abstract
The invention provides a chained network positioning system. The chained network positioning system comprises a trigger, a background subsystem and a plurality of electronic tags; at least one electronic tag is mounted on each object; the plurality of electronic tags are divided into a first electronic tag and other electronic tags; the first electronic tag is used for responding to a low-frequency triggering signal from the trigger, and then sending out a feedback signal to the background subsystem and also another low-frequency triggering signal; the other electronic tags are used for responding to the trigger signals sent by the adjacent electronic tags, and then sending out feedback signals to the background subsystem and also another low-frequency triggering signals; the background subsystem is used for obtaining a position relation between the different electronic tags according to the feedback signals and then obtaining a position relation between different objects with the different electronic tags.
Description
Technical field
The present invention relates to electronic tag, particularly relate to a kind of chain network positioning system and method.
Background technology
Electronic tag is also known as radio-frequency (RF) tag, transponder, data carrier; Reader is also called readout device, scanner, read head, communicator, read write line (depend on electronic tag whether can wireless rewrite data).The space (contactless) realizing radiofrequency signal by coupling element between electronic tag with reader is coupled; In coupling channel, according to sequential relationship, realize transmission and the exchanges data of energy.
The basic functional principle of traditional RFID (radio-frequency (RF) identification) technology is also uncomplicated: after label enters magnetic field, receive the radiofrequency signal that plug-in reader sends, the energy obtained by means of induction current sends out storage product information (PassiveTag in the chips, passive label or passive label), or initiatively send the signal (ActiveTag, active label or active tag) of a certain frequency; Plug-in reader reads information and after decoding, delivers to CIS and carry out relevant data process.
In this context, because electronic tag only just can be triggered entering in magnetic field range, and magnetic field range is usually limited, this spatial dimension just making simultaneously to bring into number of labels in a set of rfid system and layout has been limited in a less scope, be unfavorable for the recognition function giving full play to electronic tag, be also unfavorable for opening up its other use based on the recognition function of electronic tag.Furthermore, on this basis, in the face of the article that large space is piled up, utilize handheld terminal one by one triggerable electronic label to carry out identification workload heavy and cannot ensure accuracy rate, and automatically cannot realize the location of the many article piled up in large space at all.
Summary of the invention
The technical problem to be solved in the present invention is the location of the many article how utilizing electronic tag to realize piling up in large space.
In order to solve this technical matters, the invention provides a kind of chain network positioning system, in order to position the article of some stackings, comprising trigger, rear station subsystem and some electronic tags, each article at least being installed a described electronic tag,
Some described electronic tags divide into the first electronic tag and other electronic tags,
Described first electronic tag in order to:
Respond the trigger pip from the low frequency of described trigger; Then:
Send a feedback signal to described rear station subsystem;
Send the trigger pip of another low frequency;
Other electronic tags described in order to:
Respond the trigger pip that adjacent electronic tag sends; Then:
Send a feedback signal to described rear station subsystem;
Send the trigger pip of another low frequency;
Described trigger pip at least includes the label ID of the electronic tag sending this trigger pip, the RSSI intensity of the trigger pip that the label ID comprised in the trigger pip that described feedback signal at least includes the label ID of affiliated electronic tag, this electronic tag receives and this electronic tag receive; Each described electronic tag and described trigger are all configured a different label ID;
Described rear station subsystem in order to obtain the position relationship between different electronic tag according to described feedback signal, and then obtains the position relationship that is provided with between the different article of different electronic tag.
Optionally, other electronic tags described, when in order to respond trigger pip that adjacent electronic tag sends, only respond wherein first trigger pip sent.
Optionally, other electronic tags described, in order to send a feedback signal to after described trigger, only when receiving a confirmation signal from described rear station subsystem, just send the trigger pip of another low frequency;
Described rear station subsystem also in order to:
For receiving trigger pip and also not sending the electronic tag of another trigger pip, according to the order preset, only send confirmation signal to the prepreerence electronic tag of current order, make it send the trigger pip of another low frequency described.
Optionally, described electronic tag at least comprises microcontroller, radio-frequency antenna, low frequencies antenna and at least one low frequency reception antenna, and described microcontroller is at least configured to realize following functions:
Respond the trigger pip received from described low frequency reception antenna, send a feedback signal by described radio-frequency antenna; And:
Another trigger pip is sent by described low frequencies antenna;
Described feedback signal also comprises No. ID, the antenna of the low frequency reception antenna receiving trigger pip in affiliated label and corresponding RSSI intensity.
Optionally, described electronic tag also comprises radio-frequency module, low frequency trigger module and low frequency reception module, all described low frequency reception antennas are all connected with described microcontroller by described low frequency reception module, described low frequencies antenna is connected with described microcontroller by described low frequency trigger module, and described radio-frequency antenna is connected with described microcontroller by described radio-frequency module.
Optionally, described low frequencies antenna is different from the direction of low frequency reception antenna, and when the quantity at least two of described low frequency reception antenna, the direction of different low frequency reception antenna is all not identical.
Optionally, described rear station subsystem comprises terminal computer, terminal radio frequency module and terminal radio frequency antenna, described terminal radio frequency antenna is connected with described terminal computer by described terminal radio frequency module, realizes data and transmit between described terminal radio frequency antenna and described radio-frequency antenna.
Present invention also offers a kind of chain network localization method, comprise the steps:
S1: trigger sends the trigger pip of low frequency to any one in some electronic tags;
S2: this electronic tag responds this trigger pip, sends feedback signal to described rear station subsystem, and sends another trigger pip;
S3: the trigger pip that one of at least response of step S2 in other electronic tags sends, sends feedback signal to described rear station subsystem;
S4: the trigger pip sent in adjacent electronic tag response of step S3, sends another trigger pip;
S5: do not receive the trigger pip that the electronic tag response of step S4 that has been trigger pip sends, sends feedback signal to described rear station subsystem;
S6: repeat step S4 and S5, until all electronic tags all sent feedback signal;
S7: obtain the position relationship between different electronic tag according to described feedback signal, and then obtain the position relationship that is provided with between the different article of different electronic tag;
Wherein, described trigger pip at least includes the label ID of the electronic tag sending this trigger pip, the RSSI intensity of the trigger pip that the label ID comprised in the trigger pip that described feedback signal at least includes the label ID of affiliated electronic tag, this electronic tag receives, this electronic tag receive; Each described electronic tag and described trigger are all configured a different label ID.
Optionally, described step S4 comprises further:
After the trigger pip sent in adjacent electronic tag response of step S3:
Described rear station subsystem, for receiving trigger pip and also not sending the electronic tag of another trigger pip, according to the order preset, only sends a confirmation signal to the prepreerence electronic tag of current order;
Described electronic tag, only when receiving described confirmation signal, just sends another trigger pip.
Optionally, described electronic tag at least comprises microcontroller, radio-frequency antenna, low frequencies antenna and at least one low frequency reception antenna, described microcontroller is at least in order to respond the described trigger pip received from described low frequency reception antenna, trigger pip described in another is sent by described low frequencies antenna, send feedback signal described in by described radio-frequency antenna, described feedback signal also comprises in electronic tag belonging to it No. ID, antenna of the low frequency reception antenna receiving trigger pip and corresponding RSSI intensity.
The present invention achieves the trigger process of chain type by triggering and be triggered before label, on the basis of this, due to the electronic tag that each electronic tag can only trigger and be triggered in certain limit, this just makes by introducing label ID and RSSI signal intensity in feedback signal and trigger pip, just can judge the position relationship between different electronic tag accordingly, further, the electronic tag different article being installed different I D just can realize the establishment of the position relationship between different article.
Accompanying drawing explanation
Fig. 1 and Fig. 2 is the system schematic of chain type network positioning system in one embodiment of the invention;
Fig. 3 is the theory diagram of electronic tag in one embodiment of the invention;
Fig. 4 is the principle schematic that the electronic tag in one embodiment of the invention triggers;
Fig. 5 is the circuit diagram of microcontroller and radio frequency part in one embodiment of the invention;
Fig. 6 is the circuit diagram of one embodiment of the invention medium and low frequency receiving unit;
Fig. 7 is the circuit diagram of one embodiment of the invention medium and low frequency radiating portion;
Fig. 8 is the schematic flow sheet of chain type network locating method in one embodiment of the invention.
Embodiment
Chain network positioning system provided by the invention and method are described in detail by an embodiment below with reference to Fig. 1 to Fig. 8, it is optional embodiment of the present invention, can think, those skilled in the art can modify to it and polish in the scope not changing the present invention's spirit and content.
Please refer to Fig. 1 and Fig. 2, present embodiments provide a kind of chain network positioning system, in order to position the article of some stackings, comprise trigger, rear station subsystem and some electronic tags, each article are at least installed a described electronic tag,
Some described electronic tags divide into the first electronic tag and other electronic tags,
Described first electronic tag in order to:
Respond the trigger pip from the low frequency of described trigger; Then:
Send a feedback signal to described rear station subsystem;
Send the trigger pip of another low frequency;
Other electronic tags described in order to:
Respond the trigger pip that adjacent electronic tag sends; Then:
Send a feedback signal to described rear station subsystem;
Send the trigger pip of another low frequency;
Described trigger pip at least includes the label ID of the electronic tag sending this trigger pip, the RSSI intensity of the trigger pip that the label ID comprised in the trigger pip that described feedback signal at least includes the label ID of affiliated electronic tag, this electronic tag receives and this electronic tag receive; Each described electronic tag and described trigger are all configured a different label ID;
Described rear station subsystem in order to obtain the position relationship between different electronic tag according to described feedback signal, and then obtains the position relationship that is provided with between the different article of different electronic tag.
The present embodiment achieves the trigger process of chain type by triggering and be triggered before label, on the basis of this, due to the electronic tag that each electronic tag can only trigger and be triggered in certain limit, this just makes by introducing label ID and RSSI signal intensity in feedback signal and trigger pip, just can judge the position relationship between different electronic tag accordingly, further, the electronic tag different article being installed different I D just can realize the establishment of the position relationship between different article.
In the present embodiment, described trigger can be on the other hand holding equipment, and in order to send the trigger pip of low frequency, at least contain its oneself No. ID in this trigger pip, can be regarded as a label ID, the present embodiment citing can be set to 0.Please refer to Fig. 2, label wherein can regard No. ID, label as.
In the present embodiment, other electronic tags described, when in order to respond trigger pip that adjacent electronic tag sends, only respond wherein first trigger pip sent.Here alleged adjacent, be define with the coverage of low frequency signal, being in coverage, is exactly adjacent, but not simple arrangement mode.Feature described above also can be understood as an electronic tag and only can be triggered once, send a feedback signal, this would not cause same label to be triggered repeatedly, thus produces the data such as label ID, RSSI value of multiple correspondence, at least has the benefit simplifying and calculate.
Corresponding with it, please refer to Fig. 8, the present embodiment additionally provides a kind of chain network localization method, comprises the steps:
S1: trigger sends the trigger pip of low frequency to any one in some electronic tags;
S2: this electronic tag responds this trigger pip, sends feedback signal to described rear station subsystem, and sends another trigger pip;
S3: the trigger pip that one of at least response of step S2 in other electronic tags sends, sends feedback signal to described rear station subsystem;
S4: the trigger pip sent in adjacent electronic tag response of step S3, sends another trigger pip;
S5: do not receive the trigger pip that the electronic tag response of step S4 that has been trigger pip sends, sends feedback signal to described rear station subsystem;
S6: repeat step S4 and S5, until all electronic tags all sent feedback signal;
S7: obtain the position relationship between different electronic tag according to described feedback signal, and then obtain the position relationship that is provided with between the different article of different electronic tag;
Wherein, described trigger pip at least includes the label ID of the electronic tag sending this trigger pip, the RSSI intensity of the trigger pip that the label ID comprised in the trigger pip that described feedback signal at least includes the label ID of affiliated electronic tag, this electronic tag receives, this electronic tag receive; Each described electronic tag and described trigger are all configured a different label ID.
On above basis, described electronic tag at least comprises microcontroller, radio-frequency antenna, low frequencies antenna and at least one low frequency reception antenna, and described microcontroller (MCU) is at least configured to realize following functions:
Respond the trigger pip received from described low frequency reception antenna, send a feedback signal by described radio-frequency antenna; And:
Another trigger pip is sent by described low frequencies antenna.
For above two kinds of functions, response sends feedback signal to trigger pip, namely can regard as and be triggered, send another trigger pip, namely can regard as and initiatively trigger, both can be have cause-effect relationship, namely because response is to trigger pip, just send trigger pip, also can be do not possess causal, simultaneously, other necessary conditions can also be supplemented to reach the effect of triggering, feedback, in other words, as long as a label can realize this two functions, just one of optional embodiment of the present invention can be regarded as.
In the present embodiment, described low frequencies antenna is different from the direction of low frequency reception antenna, and when the quantity at least two of described low frequency reception antenna, the direction of different low frequency reception antenna is all not identical.
Described feedback signal also comprises in electronic tag belonging to it No. ID, antenna of the low frequency reception antenna receiving trigger pip and corresponding RSSI intensity.Here alleged affiliated electronic tag, refers to the electronic tag sending this feedback signal naturally.
In summary it can be seen, the label ID of electronic tag belonging to this feedback signal can be comprised in feedback signal, the antenna ID receiving the low frequency reception antenna of trigger pip of label ID that trigger pip that the low frequency reception antenna of this affiliated electronic tag receives comprises, this affiliated electronic tag, and the intensity RSSI of signal received by the low frequency reception antenna receiving trigger pip of this affiliated electronic tag.
The first two label ID in describing based on epimere, consider that low frequencies antenna is also that tool is directive, in certain embodiments, both rough location relations can be confirmed, which two label the object that also can confirm to carry out location comparison is respectively, after determining any two labels, low frequency reception antenna due to electronic tag is different directions respectively, which antenna to receive trigger pip according to further, i.e. antenna ID, both position relations can be confirmed further, after introducing corresponding signal intensity RSSI, not only can obtain further data with regard to the distance of two labels, the position relation that can also judge between two labels further by the difference of multiple low frequency reception aerial signal power.
According to above logic, those skilled in the art should be able to obtain some can for the scheme calculated and modeling pattern, because all data are all quantifiable, the attenuation change of signal intensity, the change of aerial angle is all known simulates, so those skilled in the art can obtain some schemes realizing effect of the present invention completely under above description.
In the present embodiment, consider in the process triggered in chain type, can overlap the problem triggered, and in step S5 of the present invention, only by the trigger pip not receiving the electronic tag response of step S4 that has been trigger pip and send, send feedback signal to described rear station subsystem.Corresponding, in the system of the present embodiment, other electronic tags described, in order to after sending a feedback signal to described trigger, only when receiving a confirmation signal from described rear station subsystem, just send the trigger pip of another low frequency.In other words, can be overlapped triggering on the one hand, on the other hand, only accept the triggering of first trigger pip, which results in the uncertainty of trigger process, for Fig. 1, after electronic tag 2,3,4 is triggered by electronic tag 1, electronic tag 7 is triggered by electronic tag 2 actually or is triggered by electronic tag 4, is random, the present embodiment is that the guiding of this order provides a solution for this reason, but is also not limited to this solution.
In the present embodiment, other electronic tags described, in order to send a feedback signal to after described trigger, only when receiving a confirmation signal from described rear station subsystem, just send the trigger pip of another low frequency;
Described rear station subsystem also in order to:
For receiving trigger pip and also not sending the electronic tag of another trigger pip, according to the order preset, only send confirmation signal to the prepreerence electronic tag of current order, make it send the trigger pip of another low frequency described.
Corresponding with it, described step S4 comprises further:
After the trigger pip sent in adjacent electronic tag response of step S3:
Described rear station subsystem, for receiving trigger pip and also not sending the electronic tag of another trigger pip, according to the order preset, only sends a confirmation signal to the prepreerence electronic tag of current order;
Described electronic tag, only when receiving described confirmation signal, just sends another trigger pip.
In the present embodiment, can think, after electronic tag is triggered, it can automatically be opened radio-frequency antenna and monitor, and so just can receive described confirmation signal.
Refer to Fig. 1, specifically, for the ease of understanding and setting forth, assuming that label is wherein exactly No. ID, and the order preset is exactly numeral order from small to large, wherein the direction of low frequencies antenna is oblique upper right, each electronic tag configures three low frequency reception antennas, and the direction of low frequency reception antenna be respectively left and right and under, and in supposition 9 shown in a Fig. 1 electronic tag, the coverage of each low frequencies antenna all can cover the low frequency reception antenna of horizontal, vertical and oblique three electronic tags.
So, label ID is after the trigger triggerable electronic label 1 of 0, electronic tag 1 is as the first electronic tag triggerable electronic label 2 respectively, 3, 4, now, electronic tag 2, 3, 4 all to belong to and have received trigger pip but do not send trigger pip, namely be triggered the label also not carrying out triggering, wherein, the minimum electronic tag of ID is 2, so, first by electronic tag 2, adjacent electronic tag is triggered, namely electronic tag 7 and 8 is triggered by electronic tag 2, the label also not carrying out triggering that is now triggered just has become electronic tag 3, 4, 7, 8, now should be triggered adjacent electronic tag by electronic tag 3, by that analogy.If the electronic tag of distributed in three dimensions, its situation is more complicated, but under also not departing from this logic.
Under the most extreme embodiment, those skilled in the art immediately can consult feedback signal on rear station subsystem, which can know electronic tag accordingly to have received trigger pip and be triggered, when just sending another trigger pip after electronic tag is configured to only to receive confirmation signal, can by manually sending confirmation signal one by one realizes logic function mentioned above.In other alternative-embodiments, also can pre-set the stand-by period for the electronic tag of different I D, just carry out triggering and feeding back after this time, in other words, after the time of presetting, just send another trigger pip described.
For described rear station subsystem:
Please refer to Fig. 2, in the present embodiment, described rear station subsystem comprises terminal computer, terminal radio frequency module and terminal radio frequency antenna, described terminal radio frequency antenna is connected with described terminal computer by described terminal radio frequency module, realizes data and transmit between described terminal radio frequency antenna and described radio-frequency antenna.Feedback signal mentioned above can realize transmission by described terminal radio frequency antenna and radio-frequency antenna, and confirmation signal mentioned above also can realize transmission by described terminal radio frequency antenna and radio-frequency antenna.In the present embodiment, described terminal radio frequency antenna and radio-frequency antenna are transceiving radio frequency antenna, in other embodiment, different according to its effect, also can only be configured to emitting antenna or receiving antenna.
Below with reference to Fig. 3 to Fig. 7, elaboration detailed is further carried out to the electronic tag that the present embodiment provides.
Please refer to Fig. 3, present embodiments provide a kind of electronic tag, comprise microcontroller (MCU), radio frequency (RF) antenna, low frequencies antenna and at least one low frequency reception antenna, described microcontroller (MCU) at least in order to:
Respond the trigger pip received from described low frequency reception antenna;
Another trigger pip is sent by described low frequencies antenna;
A feedback signal is sent by described radio frequency (RF) antenna.
For the cause-effect relationship of above three kinds of functions, can be first respond trigger pip, namely be triggered, realize feedback again and initiatively trigger, but be also not limited thereto, other necessary conditions can be supplemented to reach the effect of triggering, feedback, in other words, as long as a label can realize this three functions, just one of optional embodiment of the present invention can be regarded as.
In the present embodiment, microcontroller (MCU) adopts the chip as Fig. 5 indicates, and certain the present invention is not limited to this.
In the present embodiment, this label also comprises radio frequency (RF) module, low frequency trigger module and low frequency reception module, all described low frequency reception antennas are all connected with described microcontroller (MCU) by described low frequency reception module, described low frequencies antenna is connected with described microcontroller (MCU) by described low frequency trigger module, and described radio frequency (RF) antenna is connected with described microcontroller (MCU) by described radio frequency (RF) module.
Here alleged radio frequency (RF) module, low frequency trigger module and low frequency reception module can be thought to play between microprocessor and each antenna and encode, decode, transmit and the module of one of at least function such as amplification.In like manner, previously described terminal radio frequency (RF) module is also similar effect
For low frequency reception part, when the quantity at least two of described low frequency reception antenna, the direction of different low frequency reception antenna is all not identical.Please refer to Fig. 5 and Fig. 6, in the present embodiment, have employed the antenna in three directions exemplarily, receive a left side respectively, right, the low frequency signal in lower three directions, its LF1P as shown in the figure, LF2P, LF3P is linked into three input interfaces of AS3993 chip respectively, it is low frequency reception module in the present embodiment that AS3993 chip can regard as, in the present embodiment, CS interface wherein receives the P0.0 interface of microcontroller (MCU), SCL interface receives the P0.1 interface of microcontroller (MCU), SDI interface receives the PL4 interface of microcontroller (MCU), SDO interface receives the PL3 interface of microcontroller (MCU), CL_DAT interface receives the P0.4 interface of microcontroller (MCU), DAT interface receives the P0.3 interface of microcontroller (MCU), WAKE interface receives the P0.6 interface of microcontroller (MCU).Please refer to Fig. 5 and Fig. 7, for low frequencies part, the P1.5 interface of microcontroller (MCU) is connected to low frequencies module, and then is connected to low frequencies antenna.
The device arrangements of other concrete wiring and circuit, also can obtain with reference to Fig. 5 to Fig. 7, the present embodiment no longer does concrete elaboration, should be realized that, why the present embodiment provides concrete circuit diagram, is intended to show, the hardware components of technical scheme of the present invention can be obtained by the annexation of the uniqueness of known hardware, the embodiment of Fig. 5 to Fig. 7 signal has given a kind of scheme, so, the problem that can not there is insufficient disclosure He cannot realize.
In addition, in the present embodiment, described electronic tag also comprises power supply, and described power supply is with thinking that described microcontroller is powered.Described power supply connects by being input to described microcontroller after the boosting of at least one boost module.Described radio-frequency antenna is radio-frequency receiving-transmitting antenna.
In the present embodiment, radio frequency (RF) antenna is radio frequency (RF) dual-mode antenna, and can adopt radio frequency (RF) antenna of 2.4GHz, low frequency reception antenna, low frequencies antenna can adopt the antenna of 12.5MHz.
The present invention further again, this hardware foundation can realize by further programming two-way Trigger Function, recognition function on this basis and further positioning function.
For Trigger Function,
1) can low frequency signal be launched, be referred to as arousal function;
2) wake the electronic tag of all sleeps up, normal condition, electronic tag is all sleep state, improves the serviceable life of electronic tag;
3) electronic tag needs the RSSI value identifying trigger, to confirm the direction of electronic tag, i.e. and cephlad-caudal.
For electronic label function:
1) low frequency signal is received, and RSSI;
2) low frequency signal can be launched;
3) corresponding signal is gone out with RF radiofrequency signal rapid fire;
4) working routine: sleep-> wakes work-> up and sleeps.
In order to realize two-way Trigger Function, by configuring corresponding program and peripheral circuit to microcontroller (MCU), described microcontroller (MCU) at least can in order to respond the trigger pip received from described low frequency reception antenna, another trigger pip is sent by described low frequencies antenna, a feedback signal is sent by described radio frequency (RF) antenna, wherein receiving trigger pip, namely send feedback signal be realize being triggered function, wherein send another trigger pip, immediately realize Trigger Function.
In order to realize recognition function on this basis, described feedback signal at least comprises No. ID, label corresponding to affiliated label, if be located on goods by label, by this recognition function, can realize the preliminary inventory whether goods " exists ".Here alleged affiliated electronic tag, refers to the electronic tag sending this feedback signal naturally.
In order to realize recognition function on this basis, also following configuration must be done:
The trigger pip sent by described low frequencies antenna at least comprises No. ID, label corresponding to affiliated label.Described feedback signal at least comprises No. ID, the label comprised in No. ID, label corresponding to affiliated label and received trigger pip.Described feedback signal also comprises No. ID, the antenna of the low frequency reception antenna receiving trigger pip in affiliated label and corresponding RSSI intensity.Described low frequencies antenna is different from the direction of low frequency reception antenna.When the quantity at least two of described low frequency reception antenna, the direction of different low frequency reception antenna is all not identical.Certainly, the present invention is not limited to how many directions and which direction concrete, even equidirectional, also the present invention one optional embodiment is belonged to, in various embodiments of the present invention, the different directions of different antennae or the difference of position can be utilized respectively, obtain different coverages, and then can come specifically to calculate according to the difference of RSSI value.
For example, please refer to Fig. 4, for label T1 configures three low frequency reception antenna R11, R12 and R13, its fan-shaped area coverage is respectively towards a left side, the right side and downside, also configure a low frequencies antenna A1, for label T2 configures three low frequency reception antenna R21, R22 and R23, its fan-shaped area coverage is respectively towards a left side, the right side and downside, also configure a low frequencies antenna A2, and label T1 is in the upside of label T2, assuming that the ID of label T1 is 1, the ID of T2 is 2, the ID of three antennas of label T1 is 11 respectively, 12, 13, when label T2 sends trigger pip by low frequencies antenna A2, the receiving antenna R11 of label T1 receives trigger pip, the label ID that now just can obtain oneself is 1, the label ID triggering T1 is 2, and the antenna ID of the receiving antenna R11 receiving trigger pip is 11, can determine which two two adjacent labels be by two ID, by antenna ID, because the direction of different antennae is different, its relative position can be judged.
In sum, the present invention achieves the trigger process of chain type by triggering and be triggered before label, on the basis of this, due to the electronic tag that each electronic tag can only trigger and be triggered in certain limit, this just makes by introducing label ID and RSSI signal intensity in feedback signal and trigger pip, just can judge the position relationship between different electronic tag accordingly, further, the electronic tag different article being installed different I D just can realize the establishment of the position relationship between different article.
Claims (10)
1. a chain network positioning system, in order to position the article of some stackings, is characterized in that: comprise trigger, rear station subsystem and some electronic tags, each article is at least installed a described electronic tag,
Some described electronic tags divide into the first electronic tag and other electronic tags,
Described first electronic tag in order to:
Respond the trigger pip from the low frequency of described trigger; Then:
Send a feedback signal to described rear station subsystem;
Send the trigger pip of another low frequency;
Other electronic tags described in order to:
Respond the trigger pip that adjacent electronic tag sends; Then:
Send a feedback signal to described rear station subsystem;
Send the trigger pip of another low frequency;
Described trigger pip at least includes the label ID of the electronic tag sending this trigger pip, the RSSI intensity of the trigger pip that the label ID comprised in the trigger pip that described feedback signal at least includes the label ID of affiliated electronic tag, this electronic tag receives and this electronic tag receive; Each described electronic tag and described trigger are all configured a different label ID;
Described rear station subsystem in order to obtain the position relationship between different electronic tag according to described feedback signal, and then obtains the position relationship that is provided with between the different article of different electronic tag.
2. chain network positioning system as claimed in claim 1, is characterized in that: other electronic tags described, when in order to respond trigger pip that adjacent electronic tag sends, only respond wherein first trigger pip sent.
3. chain network positioning system as claimed in claim 1, it is characterized in that: other electronic tags described are in order to send a feedback signal to after described trigger, only when receiving a confirmation signal from described rear station subsystem, just send the trigger pip of another low frequency;
Described rear station subsystem also in order to:
For receiving trigger pip and also not sending the electronic tag of another trigger pip, according to the order preset, only send confirmation signal to the prepreerence electronic tag of current order, make it send the trigger pip of another low frequency described.
4. chain network positioning system as claimed in claim 1, is characterized in that: described electronic tag at least comprises microcontroller, radio-frequency antenna, low frequencies antenna and at least one low frequency reception antenna, and described microcontroller is at least configured to realize following functions:
Respond the trigger pip received from described low frequency reception antenna, send a feedback signal by described radio-frequency antenna; And:
Another trigger pip is sent by described low frequencies antenna;
Described feedback signal also comprises No. ID, the antenna of the low frequency reception antenna receiving trigger pip in affiliated label and corresponding RSSI intensity.
5. chain network positioning system as claimed in claim 4, it is characterized in that: described electronic tag also comprises radio-frequency module, low frequency trigger module and low frequency reception module, all described low frequency reception antennas are all connected with described microcontroller by described low frequency reception module, described low frequencies antenna is connected with described microcontroller by described low frequency trigger module, and described radio-frequency antenna is connected with described microcontroller by described radio-frequency module.
6. chain network positioning system as claimed in claim 4, it is characterized in that: described low frequencies antenna is different from the direction of low frequency reception antenna, when the quantity at least two of described low frequency reception antenna, the direction of different low frequency reception antenna is all not identical.
7. chain network positioning system as claimed in claim 1, it is characterized in that: described rear station subsystem comprises terminal computer, terminal radio frequency module and terminal radio frequency antenna, described terminal radio frequency antenna is connected with described terminal computer by described terminal radio frequency module, realizes data and transmit between described terminal radio frequency antenna and described radio-frequency antenna.
8. a chain network localization method, is characterized in that: comprise the steps:
S1: trigger sends the trigger pip of low frequency to any one in some electronic tags;
S2: this electronic tag responds this trigger pip, sends feedback signal to described rear station subsystem, and sends another trigger pip;
S3: the trigger pip that one of at least response of step S2 in other electronic tags sends, sends feedback signal to described rear station subsystem;
S4: the trigger pip sent in adjacent electronic tag response of step S3, sends another trigger pip;
S5: do not receive the trigger pip that the electronic tag response of step S4 that has been trigger pip sends, sends feedback signal to described rear station subsystem;
S6: repeat step S4 and S5, until all electronic tags all sent feedback signal;
S7: obtain the position relationship between different electronic tag according to described feedback signal, and then obtain the position relationship that is provided with between the different article of different electronic tag;
Wherein, described trigger pip at least includes the label ID of the electronic tag sending this trigger pip, the RSSI intensity of the trigger pip that the label ID comprised in the trigger pip that described feedback signal at least includes the label ID of affiliated electronic tag, this electronic tag receives, this electronic tag receive; Each described electronic tag and described trigger are all configured a different label ID.
9. chain network localization method as claimed in claim 8, is characterized in that: described step S4 comprises further:
After the trigger pip sent in adjacent electronic tag response of step S3:
Described rear station subsystem, for receiving trigger pip and also not sending the electronic tag of another trigger pip, according to the order preset, only sends a confirmation signal to the prepreerence electronic tag of current order;
Described electronic tag, only when receiving described confirmation signal, just sends another trigger pip.
10. chain network localization method as claimed in claim 8, it is characterized in that: described electronic tag at least comprises microcontroller, radio-frequency antenna, low frequencies antenna and at least one low frequency reception antenna, described microcontroller is at least in order to respond the described trigger pip received from described low frequency reception antenna, trigger pip described in another is sent by described low frequencies antenna, feedback signal described in one is sent by described radio-frequency antenna, described feedback signal also comprises in electronic tag belonging to it No. ID, antenna of the low frequency reception antenna receiving trigger pip and corresponding RSSI intensity.
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| CN104700135B (en) | 2017-08-29 |
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