CN103179648A - Low-power-consumption personnel zone location method based on multi-sensor coordination - Google Patents
Low-power-consumption personnel zone location method based on multi-sensor coordination Download PDFInfo
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- CN103179648A CN103179648A CN2013100786787A CN201310078678A CN103179648A CN 103179648 A CN103179648 A CN 103179648A CN 2013100786787 A CN2013100786787 A CN 2013100786787A CN 201310078678 A CN201310078678 A CN 201310078678A CN 103179648 A CN103179648 A CN 103179648A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention discloses a low-power-consumption personnel zone location method based on multi-sensor coordination. The method includes: setting a low-power-consumption boundary positioning device at zone boundary, and setting a low-power-consumption receiver in a zone; when the person passing the zone boundary is detected, allowing the low-power-consumption boundary positioning device to arouse a tag card carried by a located person, record an event that the tag card passes the zone boundary and transmits the event to a server; after the located person carrying the tag card enters the zone, keeping the tag card to be constantly and periodically communicated with the low-power-consumption receiver set in the zone; after the located person carrying the tag card leaves the zone, allowing periodic communication between the tag card and the low-power-consumption receiver to interrupt, and allowing the tag card to re-enter the low-power-consumption dormant state to await being aroused by low-power-consumption boundary positioning devices in other zones. The method achieves accurate low-power-consumption zone location for personnel, the problem that the existing zone location technology has large errors is solved, and cost of power consumption in location process can be lowered.
Description
Technical field
The invention belongs to wireless communication field, relate to a kind of personnel's area positioning method, especially relate to a kind of low-power consumption personnel area positioning method based on multi-sensor cooperation.
Background technology
Accurate zone position information plays very important effect in a lot of application scenarioss, as scenic spot visitor's guide to visitors, and office space personnel positioning tracking etc., the user does not pay close attention to concrete position coordinates, and accurate zone position information is more effective to this type of application.In area positioning technology; traditional support based on the more infrastructure of location technology needs of finding range; all rely on the deployment of infrastructure as infrared, sound wave, ultrasonic wave etc. based on the location algorithm of range finding, be difficult to use and dispose in extensive or application scenarios that basic condition is limited.The location technology of scenario-based analysis needs a large amount of manual interventions to remove to set up fingerprint base, need the pattern matching algorithm of higher computation complexity to go to realize online location, and work as environmental change and need to again upgrade fingerprint base, to large-scale application scenarios and improper.Traditional location algorithm based on approaching judgement is easy to realize and dispose, but the error of location is larger, generally between 2 to 5 meters, and the precision of location depends on the deployment of known location node, can not satisfy application demand in the scene that needs the precise region location.
In addition, present location technology is not paid close attention to the power consumption cost problem that exists in whole position fixing process, and the destination node in navigation system and known position information node are in continuous duty usually.In the limited application scenarios of some basic conditions, the working life of navigation system is the subject matter of paying close attention to, and how can reduce the power consumption cost of location, and the life cycle that as far as possible extends navigation system is also to need a major issue paying close attention in zone location.
Limited and the larger problem of location power consumption cost of dependence infrastructure, the positioning accuracy that exists in realizing accurate zone location for present location technology, proposed a kind of low-power consumption personnel area positioning technology based on multi-sensor cooperation, the collaborative work by multisensor realizes the accurate zone location of personnel.
Summary of the invention
The object of the present invention is to provide a kind of low-power consumption personnel area positioning method based on multi-sensor cooperation, be intended to solve present location technology and rely on stronger infrastructure, positioning accuracy deficiency and the larger problem of power consumption cost aspect zone location.
The present invention realizes low-power consumption zone location to personnel in conjunction with passive infrared technology and low frequency wake-up technology, a kind of low-power consumption personnel area positioning method based on multi-sensor cooperation, be applied to comprise that in the system of low-power consumption boundary alignment device, low-power consumption receiver, label card and server composition, concrete steps comprise:
(1) dispose low-power consumption boundary alignment device in the zone boundary, affix one's name to the low-power consumption receiver at intra-zone, the personnel of being positioned carry label card, and the said equipment can be supported low-power consumption work, and is battery-powered;
(2) the low-power consumption boundary alignment device disposed of zone boundary and the intra-zone low-power consumption receiver periodical communication of affixing one's name to, the retention time is synchronous, keeps identical work period T_cycle, and label card is in the low-power consumption resting state;
When (3) low-power consumption boundary alignment device detects personnel through the zone boundary, wake the label card that the personnel of being positioned carry up, record label card through the zone boundary event information, and this information is sent to server;
(4) personnel of being positioned carry and communicate by letter with the low-power consumption receiver hold period that intra-zone is affixed one's name to after label card enters the zone;
(5) after the personnel of being positioned carried label card and leave the zone, the periodical communication between the low-power consumption receiver in label card and zone interrupted, and label card reenters the low-power consumption resting state, waits for by other regional low-power consumption boundary alignment device wake.
Described low-power consumption boundary alignment device comprises personnel's detection module, low-frequency excitation module, the first radio-frequency communication module and the first control module: described personnel's detection module testing staff sends detection signal to the first control module during through the zone boundary; Described the first control module is controlled the low-frequency excitation module according to the detection signal that receives and is sent the low-frequency excitation signal, controls the intercommunication mutually of the low-power consumption receiver that the first radio-frequency communication module and label card and intra-zone affix one's name to label card; The course of work of described low-power consumption boundary alignment device specifically comprises the following steps:
When (a1) personnel of being positioned carried label card through the zone boundary, after entering the detection range of personnel's detection module, low-power consumption boundary alignment device was waken up;
(a2) after low-power consumption boundary alignment device is waken up, controls the low-frequency excitation module and send the label card that the low-frequency excitation signal carries with the activation personnel;
(a3) after low-power consumption boundary alignment device receives the solicited message of label card transmission, turnaround time synchronously and the information such as work period T_cycle of the low-power consumption receiver of intra-zone administration, record label card through the zone boundary event information, and this information is sent to server;
(a4) personnel of being positioned carry label card and leave the zone during through the border, low-power consumption boundary alignment device is waken up again, send low-frequency excitation signal activation label card, record label card through the zone boundary event information after receiving the information of label card, and this information is sent to server.
Described label card comprises low frequency receiver module, the second radio-frequency communication module and the second control module: described low frequency receiver module is monitored the low-frequency excitation signal, and the low-frequency excitation signal that receives is sent to the second control module; Described the second control module intercoms with described low-power consumption boundary alignment device and described low-power consumption receiver mutually according to low-frequency excitation signal controlling the second radio-frequency communication module that receives; The course of work of described label card comprises the following steps:
(b1) label card is bound with the personnel of being positioned at server end;
When (b2) personnel of being positioned carried label card through the zone boundary, label card was waken up after receiving the low-frequency excitation signal that low-power consumption boundary alignment device sends;
(b3) label card is waken up backward low-power consumption boundary alignment device and sends solicited message, carry out time synchronized with low-power consumption boundary alignment device after receiving the return information of low-power consumption boundary alignment device, keep identical time phase of Ψ and work period T_cycle;
(b4) label card enters the work of regional laggard line period, work period is T_cycle, monitor and record the beacon frame of the low-power consumption receiver broadcasting of intra-zone administration, the average signal strength that a N continuous cycle receives low-power consumption receiver R_domain is the strongest, and average signal strength is greater than entering region threshold RSSI_in, the label card judgement has entered zone corresponding to R_domain, send to low-power consumption receiver R_domain and enter area event information, label card enters regional internal state, and wherein N is the natural number greater than 1;
When (b5) label card is in regional internal state, communicate by letter with low-power consumption receiver R_domain hold period, reply heartbeat packet when receiving the beacon frame of low-power consumption receiver R_domain, show that label card still is in zone corresponding to low-power consumption receiver R_domain;
(b6) personnel of being positioned carry label card and leave the zone during through the zone boundary, and label card is encouraged after receiving the low frequency signal that low-power consumption boundary alignment device sends again, wakes backward low-power consumption boundary alignment device up and sends solicited message;
(b7) after label card leaves the zone, be interrupted with communicating by letter of low-power consumption receiver R_domain, if the signal strength signal intensity that a continuous N cycle does not receive the beacon frame of low-power consumption receiver R_domain or receives beacon frame is less than leaving region threshold RSSI_out, label card reenters the low-power consumption resting state, and wherein M is the natural number greater than 1.
Described low-power consumption receiver comprises the 3rd radio frequency communication module and the 3rd control module, low-power consumption receiver periodic duty, work period is T_cycle, broadcast beacon frame is also monitored the return information of label card, producing label card enters area event information or leaves area event information, and this information is sent to server, comprise the following steps:
(c1) after the work period began, low-power consumption receiver broadcast beacon frame entered listening state after broadcasting is completed, and waited for receiving the return information that enters the label card in the zone;
(c2) receive the area event information that enters of label card transmission, record enters the label card relevant information in zone, produces label card and enters area event information, and this information is sent to server;
(c3) receive the heartbeat packet that label card is replied, the label card relevant information of new record more;
(c4) after listening period finishes, the label card information that enters the zone of traversal record, if the signal strength signal intensity that a continuous N cycle does not receive the heartbeat packet of label card or receives heartbeat packet is left region threshold RSSI_out less than what set, judge that label card has left the zone, produce label card and leave area event information, and this information is sent to server; Wherein M is the natural number greater than 1;
(c5) after traversal was completed, the low-power consumption receiver entered resting state, waits for the beginning of next work period.
Compared with prior art, beneficial effect of the present invention is embodied in:
The present invention realizes the accurate low-power consumption zone location of personnel by personnel's detection technique, low frequency wake-up technology, not only can solve the larger problem of present area positioning technology error, and can reduce the power consumption cost in position fixing process.
Description of drawings
Fig. 1 is the low-power consumption personnel area positioning method deployed with devices schematic diagram based on multi-sensor cooperation of the present invention.
Fig. 2 is the low-power consumption boundary alignment apparatus module function diagram that is deployed in the zone boundary.
Fig. 3 is the functional block diagram of the label card that carries of the personnel of being positioned.
Fig. 4 is the work sequence figure of the personnel's of being positioned each equipment when carrying label card and entering the zone.
Fig. 5 is the work sequence figure of the personnel's of being positioned each equipment when carrying label card and leaving the zone.
Embodiment
In order to make purpose of the present invention, technical scheme and functional characteristic clearer, below in conjunction with drawings and Examples, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only is used for explaining the present invention, do not limit the present invention.
The invention provides a kind of low-power consumption personnel area positioning method based on multi-sensor cooperation.Realize accurate, low-power consumption personnel area positioning method by personnel's detection technique and low frequency wake-up exciting technique.
Fig. 1 is based on the deployed with devices schematic diagram of the low-power consumption personnel area positioning method of multi-sensor cooperation.As shown in the figure, low-power consumption personnel area positioning technology comprises three equipment: the low-power consumption receiver that the low-power consumption boundary alignment device that label card, zone boundary are disposed and intra-zone are affixed one's name to.
The label card that the personnel of being positioned carry comprises low frequency receiver module, the second radio-frequency communication module and the second control module, and functional block diagram as shown in Figure 3.Label card is initially in the low-power consumption resting state, monitors by the low frequency receiver module low-frequency excitation signal that low-power consumption boundary alignment device sends.Label card is waken up after receiving the low-frequency excitation signal, communicates by letter with low-power consumption boundary alignment device and carries out time synchronized.Enter behind the zone according to the signal intelligence judgement with the low-power consumption receiver of intra-zone administration and enter and leave the zone, enter the zone issue bag when signal intelligence satisfies to send to receiver when entering area condition, the label card enters the low-power consumption resting state when leaving area condition when signal intelligence satisfies.
The low-power consumption receiver of intra-zone administration comprises the 3rd radio frequency communication module and the 3rd control module, low-power consumption receiver periodic duty, and the work period is T_cycle.After work period began, broadcast beacon frame comprised the information such as low-power consumption receiver ID, timestamp, number of frames.After broadcasting was completed, the low-power consumption receiver entered listening state, received the return information of label card, and the information generation label card that foundation receives enters area event information and label card leaves area event information, and this information is sent to server.
The low-power consumption boundary alignment device that is deployed in the zone boundary mainly is responsible for the excitation label card and records label card through zone boundary information.The functional block diagram of low-power consumption boundary alignment device comprises four modules as shown in Figure 2: personnel's detection module, low-frequency excitation module, the first radio-frequency communication module and the first control module.Personnel's detection module adopts the passive infrared technology, and Passive Infrared Sensor is responsible for the testing staff through the zone boundary, and the low-frequency excitation piece sends the low-frequency excitation signal and wakes label card up.The first radio-frequency communication module is responsible for intercoming mutually with regional interior low-power consumption receiver and label card.
Fig. 4 is the work sequence figure of the personnel's of being positioned each equipment when carrying label card and entering the zone.Enter zone issue and comprise three processes: through the zone boundary, enter the zone and the zone in the stop process.Wherein, A place expression label card personnel's detection range of entering low-power consumption boundary alignment device.
When the personnel of being positioned carry label card through the zone boundary, trigger the Passive Infrared Sensor of low-power consumption boundary alignment device, personnel detect outer module and wake low-power consumption boundary alignment device up.Low-power consumption boundary alignment device is waken up the periodic emission continuously of rear control low-frequency excitation module 125KHZ low-frequency excitation signal.After receiving the low-frequency excitation signal, the label card that is in the low-power consumption resting state is waken up, send the request bag to low-power consumption boundary alignment device, the laggard line time of return information that receives low-power consumption boundary alignment device is synchronous, safeguards identical time phase of Ψ and work period T_cycle.Simultaneously, low-power consumption boundary alignment device records label card through the zone boundary event information, and this information is sent to server.
Label card enter behind the zone be deployed in the zone in the communicating by letter of low-power consumption receiver hold period, monitor continuously the beacon frame that the low-power consumption receiver of each intra-zone administration is broadcasted.If (N is the natural number greater than 1 to N continuous, can determine according to actual needs) signal strength signal intensity that receives low-power consumption receiver R_domain in the individual cycle is the strongest, and average signal strength is greater than entering region threshold RSSI_in, judgement enters zone corresponding to low-power consumption receiver R_domain, send to low-power consumption receiver R_domain and enter area event information, comprise label card ID, enter the information such as zone time, label card enters regional internal state.After low-power consumption receiver R_domain received label card and enters the zone issue bag, record entered the label card information in zone, and label card is entered area event information was sent to server.
Label card is when stop in the zone, replys heartbeat packet after receiving the beacon frame of low-power consumption receiver R_domain, shows that label card still is in the zone.After low-power consumption receiver R_domain receives heartbeat packet, updating maintenance enters regional label card list.
Fig. 5 is the work sequence figure of the personnel's of being positioned each equipment when carrying label card and leaving the zone.When the personnel label card of being positioned leaves the zone through the zone boundary, the same Passive Infrared Sensor that triggers low-power consumption boundary alignment device, be activated backward low-power consumption boundary alignment device of label card sends solicited message, low-power consumption boundary alignment device records label card through the zone boundary event after receiving the information that label sends, and this information is sent to server, wherein B point place is the personnel's detection range that enters low-power consumption boundary alignment device when leaving the zone.
Behind the zone boundary, label card weakens or interrupts with the communicating by letter of low-power consumption receiver R_domain in the zone, if (M is the natural number greater than 1 to continuous N, can determine according to actual needs) signal strength signal intensity that do not receive the beacon frame of low-power consumption receiver R_domain in the individual cycle or receive beacon frame is less than leaving region threshold RSSI_out, the zone is left in the label card judgement, enters the low-power consumption resting state.Low-power consumption receiver R_domain continuous N does not receive the heartbeat packet of label card or receives heartbeat packet in the cycle signal strength signal intensity is less than leaving region threshold RSSI_out, judge that label card leaves the zone, produce label card and leave zone issue and this information is sent to server.
The label card that sends in conjunction with low-power consumption boundary alignment device at server end enters and leaves through the label card that zone boundary event information and low-power consumption receiver R_domain send the real time position that area event information obtains label card.
Above disclosed be only specific embodiments of the invention, but the present invention is not limited to this embodiment, the changes that any person skilled in the art can think of is within all should dropping on protection scope of the present invention.
Claims (5)
1. low-power consumption personnel area positioning method based on multi-sensor cooperation, be applied to comprise in the system of low-power consumption boundary alignment device, low-power consumption receiver, label card and server composition, it is characterized in that, the concrete steps of described low-power consumption personnel area positioning method based on multi-sensor cooperation are:
(1) dispose low-power consumption boundary alignment device in the zone boundary, affix one's name to the low-power consumption receiver at intra-zone, the personnel of being positioned carry label card, the said equipment can be supported low-power consumption work, wherein: described low-power consumption boundary alignment device was synchronizeed with the described low-power consumption receiver retention time, kept the identical work period; Described label card is in the low-power consumption resting state;
When (2) low-power consumption boundary alignment device detects personnel through the zone boundary, wake the label card that the personnel of being positioned carry up, record label card through the zone boundary event information, and this information is sent to server;
(3) personnel of being positioned carry and communicate by letter with the low-power consumption receiver hold period that intra-zone is affixed one's name to after label card enters the zone;
(4) after the personnel of being positioned carried label card and leave the zone, the periodical communication between the low-power consumption receiver in label card and zone interrupted, and label card reenters the low-power consumption resting state, waits for by other regional low-power consumption boundary alignment device wake.
2. the low-power consumption personnel area positioning method based on multi-sensor cooperation according to claim 1, it is characterized in that, described low-power consumption boundary alignment device comprises personnel's detection module, low-frequency excitation module, the first radio-frequency communication module and the first control module: described personnel's detection module testing staff sends detection signal to the first control module during through the zone boundary; Described the first control module is controlled the low-frequency excitation module according to the detection signal that receives and is sent the low-frequency excitation signal, controls the intercommunication mutually of the low-power consumption receiver that the first radio-frequency communication module and label card and intra-zone affix one's name to label card.
3. the low-power consumption personnel area positioning method based on multi-sensor cooperation according to claim 2, is characterized in that, the course of work of described low-power consumption boundary alignment device specifically comprises the following steps:
When (a1) personnel of being positioned carried label card through the zone boundary, after entering the detection range of personnel's detection module, low-power consumption boundary alignment device was waken up;
(a2) after low-power consumption boundary alignment device is waken up, controls the low-frequency excitation module and send the label card that the low-frequency excitation signal carries with the activation personnel;
(a3) after low-power consumption boundary alignment device receives the solicited message of label card transmission, turnaround time synchronously and the work period information of the low-power consumption receiver of intra-zone administration, record label card through the zone boundary event information, and this information is sent to server;
(a4) personnel of being positioned carry label card and leave the zone during through the border, low-power consumption boundary alignment device is waken up again, send low-frequency excitation signal activation label card, record label card through the zone boundary event information after receiving the information of label card, and this information is sent to server.
4. the low-power consumption personnel area positioning method based on multi-sensor cooperation according to claim 2, is characterized in that, the course of work of described label card comprises the following steps:
(b1) label card is bound with the personnel of being positioned at server end;
When (b2) personnel of being positioned carried label card through the zone boundary, label card was waken up after receiving the low-frequency excitation signal that low-power consumption boundary alignment device sends;
(b3) label card is waken up backward low-power consumption boundary alignment device and sends solicited message, carries out time synchronized with low-power consumption boundary alignment device after receiving the return information of low-power consumption boundary alignment device, keeps identical time phase and work period;
(b4) label card enters the work of regional laggard line period, monitor and record the beacon frame of the low-power consumption receiver broadcasting of intra-zone administration, the average signal strength that a N continuous cycle receives the low-power consumption receiver is the strongest, and average signal strength is greater than entering region threshold, the label card judgement has entered corresponding zone, send to the low-power consumption receiver and enter area event information, label card enters regional internal state, and wherein N is the natural number greater than 1;
When (b5) label card is in regional internal state, communicate by letter with low-power consumption receiver hold period, reply heartbeat packet when receiving the beacon frame of low-power consumption receiver, show that label card still is in zone corresponding to low-power consumption receiver;
(b6) personnel of being positioned carry label card and leave the zone during through the zone boundary, and label card is encouraged after receiving the low frequency signal that low-power consumption boundary alignment device sends again, wakes backward low-power consumption boundary alignment device up and sends solicited message;
(b7) after label card leaves the zone, be interrupted with communicating by letter of low-power consumption receiver, if the signal strength signal intensity that a continuous N cycle does not receive the beacon frame of low-power consumption receiver or receives beacon frame is less than leaving region threshold, label card reenters the low-power consumption resting state, and wherein M is the natural number greater than 1.
5. the low-power consumption personnel area positioning method based on multi-sensor cooperation according to claim 4, is characterized in that, the course of work of described low-power consumption receiver comprises the following steps:
(c1) after the work period began, low-power consumption receiver broadcast beacon frame entered listening state after broadcasting is completed, and waited for receiving the return information that enters the label card in the zone;
(c2) receive the area event information that enters of label card transmission, record enters the label card relevant information in zone, produces label card and enters area event information, and this information is sent to server;
(c3) receive the heartbeat packet that label card is replied, the label card relevant information of new record more;
(c4) after listening period finishes, the label card information that enters the zone of traversal record, if a continuous N cycle does not receive the heartbeat packet of label card or receives the signal strength signal intensity of heartbeat packet less than the region threshold of leaving of setting, judge that label card has left the zone, produce label card and leave area event information, and this information is sent to server, wherein M is the natural number greater than 1;
(c5) after traversal was completed, the low-power consumption receiver entered resting state, waits for the beginning of next work period.
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| CN109362031A (en) * | 2018-11-19 | 2019-02-19 | 上海钧正网络科技有限公司 | A kind of Bluetooth beacon system and bluetooth localization method |
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| CN109633532A (en) * | 2018-12-21 | 2019-04-16 | 青岛安然物联网科技有限公司 | A kind of wireless beacon positioning system and its localization method |
| CN110121150A (en) * | 2019-05-24 | 2019-08-13 | 上海物联网有限公司 | A kind of trans-regional seamless positioning system in interior based on UWB technology |
| CN110121150B (en) * | 2019-05-24 | 2021-03-19 | 上海物联网有限公司 | Indoor trans-regional seamless positioning system based on UWB technology |
| CN110493711A (en) * | 2019-07-29 | 2019-11-22 | 深圳绿米联创科技有限公司 | Method, apparatus, system, electronic equipment and the storage medium of positioning |
| CN111158766A (en) * | 2019-12-24 | 2020-05-15 | 联想(北京)有限公司 | Wake-up method and apparatus, electronic device, and medium |
| CN111988738A (en) * | 2020-07-31 | 2020-11-24 | 北京骑胜科技有限公司 | Vehicle control method, device, vehicle and storage medium |
| CN115623415A (en) * | 2022-09-26 | 2023-01-17 | 凡尔智能科技集团有限公司 | Positioning method for coal mine personnel positioning based on low-frequency induction |
| CN115623415B (en) * | 2022-09-26 | 2023-03-28 | 凡尔智能科技集团有限公司 | Positioning method for coal mine personnel positioning based on low-frequency induction |
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