CN103456068B - Roll-call statistical system - Google Patents
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- CN103456068B CN103456068B CN201310390824.XA CN201310390824A CN103456068B CN 103456068 B CN103456068 B CN 103456068B CN 201310390824 A CN201310390824 A CN 201310390824A CN 103456068 B CN103456068 B CN 103456068B
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Abstract
The invention provides a kind of roll-call statistical system, it comprises: mobile RFID electronic tag, has radio communication function and with id information; Multiplely enclose boundary's card reader, compartment of terrain is laid in the periphery of particular place, for reading the id information in each mobile RFID electronic tag of turnover particular place; At least one central card reading unit, is positioned at the central area of particular place, encloses boundary's card reader establish a communications link with each, for reading the data that each encloses boundary's card reader in communication range; Background server, encloses boundary's card reader with each and central card reading unit establishes a communications link, and encloses boundary's card reader and/or central card reading unit carries out roll-call operation for checking each roll-call information of enclosing boundary's card reader and/or central card reading unit and dispatching each.Compared to prior art, described roll-call statistical system structure is simple, and installation is convenient and cost is lower, is applicable to multiple place, uses flexibly, calls the roll operation fast and accurately.
Description
Technical field
The present invention relates to roll-call technology, particularly relate to a kind of roll-call statistical system based on RFID technique.
Background technology
In a lot of industry, people information can provide crucial foundation for people's flow management, resource management, management decision.Such as at subway station, stream of people's size of each website can be understood in real time by people counting, flexible dispatching subway train density, implement people's current control, the crowded regional information of real-time release, is conducive to reinforcement crowd conevying efficiency, guarantees that metro operation is steadily effective.In market, flow of the people embodies the important evidence of its commercial value, to the accurate calculating of flow of the people, is conducive to the shopping preferences grasping guest, thus realizes better logistics arrangement, can also according to the crowd is dense in each region degree, effective coordination service personnel.On square, stadium, the marketplace such as park, flow of the people is also related to the safety problem in crowded place, crowd's quantity in effective controlling filed, in emergency circumstances can dredge rapidly crowd in fire alarm etc., the situation such as avoids trampling, push and occurs.In addition, for the situation needing certain qualification just can enter corresponding places, carry out roll-call statistics with regard to inevitably needing.
Original roll-call statistical can be the hand-held corresponding papery voucher of admission person or admission ticket (also can be predetermined information), ticket collector or the person's of checking checking is transferred in entrance, list records this admission person, not only easily there is leak source or wrong point in this kind of mode, also can expend too much time and efforts in roll-call process.Further, other roll-call statistical technique also can rely on mechanical means to realize.A kind of conventional roll-call statistical technique utilizes the motion of machinery to carry out stream of people's statistics, such as: pedestrian is passed by while gate by the electronic signature of hand-held papery voucher, admission ticket or tool RFID function and promotes mechanical rotation, so, the number of times by adding up mechanical rotation can complete calls the roll and statistics people information.This mode construction cost is high, and equipment investment expense is huge, and equipment volume is larger, generally be fixed on gateway place, use underaction, the management for people information is also convenient not, also has a maximum shortcoming to be exactly the gait of march hindering the stream of people.Another kind of conventional roll-call statistical uses photoelectric sensor, triggers photoelectric sensor by pedestrian, thus the roll-call realized pedestrian and counting.This roll-call statistical is the roll-call statistics of carrying out on the basis that subway needs ticket checking, although accuracy rate is high, fringe cost is low, and this roll-call statistical is only suitable for the place for needing ticket checking, and being generally deployed in indoor environment, the scope of application has certain limitation.
Summary of the invention
The object of the present invention is to provide a kind of roll-call statistical system, adding up loaded down with trivial details for solving roll-call in prior art, affecting the problems such as counting accuracy rate.
For solving the problem and other problems, the invention provides a kind of roll-call statistical system, comprising: as the mobile RFID electronic tag of mobile node, there is radio communication function and with id information; Boundary's card reader pattern is enclosed in employing, comprise and multiplely enclose boundary's card reader, each enclosing described in multiple that card reader compartment of terrain, boundary is laid in the periphery of particular place reads point, for read in communication range the roll-call region of the described particular place of turnover each described in id information in mobile RFID electronic tag; Adopt central card reading unit pattern, comprise at least one central card reading unit, described central card reading unit is located at the central area of described particular place and its communication range covers the roll-call region of described particular place, for reading the id information in described roll-call region in mobile RFID electronic tag in communication range; Background server, establish a communications link with the described described central card reading unit of enclosing in boundary's card reader or described central card reading unit pattern described in enclose in boundary's card reader pattern multiple, enclose boundary's card reader described in each and/or described central card reading unit carries out roll-call operation for checking the roll-call information of enclosing boundary's card reader and/or described central card reading unit described in each and dispatching.
Alternatively, enclose in boundary's card reader pattern described, the communication radius enclosing boundary's card reader described in adjacent two is identical with their spacing distance; Described boundary's card reader of enclosing comprises invasion-detecting sensor.
Alternatively, described mobile RFID electronic tag is provided with multiple communication channel, comprising: broadcast intercepts channel, for receiving from described broadcast message of enclosing boundary's card reader or described background server; RFID transmitting channel, for sending the id information of self; Receive ID and intercept channel, for intercepting broadcast message to determine whether the id information of self; Omit feedback channel, after intercepting at described reception ID and there is no the id information of self in the broadcast message that channel determines to intercept, resend the id information of self; Described boundary's card reader of enclosing is provided with multiple communication channel, comprising: broadcast signaling transmitting channel, for sending current broadcast signaling to activate described mobile RFID electronic tag; RFID intercepts channel, for receiving the id information that described mobile RFID electronic tag is sent by described RFID transmitting channel; Receive ID and issue channel, for issuing the id information of being intercepted channel reception by described RFID; Omit feedback and intercept channel, for receiving the id information that described mobile RFID electronic tag is sent by described omission feedback channel.
Alternatively, described background server acquisition id information comprises the time-frequency diversity point of impingement name mode of falling power points name mode and Background control.
Alternatively, fall power points name mode described in comprise, described boundary's card reader of enclosing is when having detected mobile RFID electronic tag and having entered in described particular place, send activation instruction to described mobile RFID electronic tag to make it carry out proofreading according to the time of broadcast channel and to cut low power transmissions state by broadcast channel, described mobile RFID electronic tag the id information included is reported to establish a communications link described in enclose boundary's card reader, after described mobile RFID electronic tag sends id information, incision receives ID and intercepts channel, the described id information enclosing boundary's card reader and will receive in broadcast distribution, if described mobile RFID electronic tag listens to the id information of oneself, then proceed to broadcast and intercept channel, enter the state of intercepting, if described mobile RFID electronic tag does not listen to the id information of oneself, then proceed to omission feedback channel, again self ID is reported, intercept channel for described boundary's card reader of enclosing and receive by omitting feedback the id information that described mobile RFID electronic tag sent by described omission feedback channel, described boundary's card reader of enclosing issuing the omission feedback information do not received after id information from described mobile RFID electronic tag, then stops issuing described id information, and described id information is reported to described background server, described background server collects the id information enclosing boundary's card reader described in each and report.
Alternatively, described roll-call statistical system also comprises: described background server, according to each id information enclosing boundary's card reader described in each and report, gets rid of the id information of repeated and redundant.
Alternatively, the time-frequency diversity point of impingement name mode of described Background control comprises: background server is according to the id information be pooled to and total id information comparison, divide ID region and carry out the roll-call of time-frequency diversity, control the quantity of the mobile RFID electronic tag in each time-frequency domain, the mobile RFID electronic tag in same time-frequency domain reports id information by csma CSMA mode of colliding.
Alternatively, the time-frequency diversity point of impingement name mode of described Background control: described background server controls described central card reading unit and announces roll-call frame, in described roll-call frame, include but not limited to roll-call frame frame head, initial ID section, stop ID section, report the time period and report frequency range; Described central card reading unit, under the control of background server, is taked unorderedly to report or report in order; Unorderedly to report described, the id information be missed all adopts CSMA mode to report simultaneously; Report in order described, for the id information omitted, divide the different time according to id information and frequency range reports.
Alternatively, described central card reading unit and described boundary's card reader of enclosing independently work or both cooperatings, include but not limited to: described in enclose the id information do not occurred in broadcast frame that boundary's card reader snoops, report to described background server; Describedly enclose after boundary's card reader pre-reads id information, described background server is no longer called the roll to already present ID.
Alternatively, the quantity of described central card reading unit is fixed according to the communication range of described central card reading unit and the size of described particular place.
As mentioned above, a kind of roll-call statistical system of the present invention, comprise with id information mobile RFID electronic tag, compartment of terrain is laid in the multiple of the periphery of particular place and encloses boundary's card reader, be positioned at least one central card reading unit of the central area of described particular place, and background server, in the application, each is configured with a mobile RFID electronic tag per capita, when calling the roll, by enclosing boundary's card reader or enclosing coordinating of boundary's card reader and central card reading unit, read the id information entering the mobile RFID electronic tag of particular place, the id information of reading is reported to background server collected by background server, thus realize the roll-call statistics of personnel, relative to prior art, described roll-call statistical system structure is simple, installation is convenient and cost is lower, be applicable to multiple place, use flexibly, call the roll operation fast and accurately.In addition, background server can timing or upgrade the id information collected in real time, and according to the change of id information, can learn the situation of marching into the arena and publishing of registration of personnel, make people's flow management more scientific and provide real-time foundation for follow-up control measure.
Accompanying drawing explanation
Fig. 1 is that the present invention calls the roll statistical system system architecture schematic diagram in one embodiment.
Fig. 2 is that the present invention's statistical system of calling the roll is being fallen the communication channel of mobile RFID electronic tag in power points name mode and enclosing the schematic diagram of communication channel of boundary's card reader.
Fig. 3 is that the present invention's statistical system Zhong Wei circle card reader of calling the roll reads the schematic diagram of mobile RFID electronic tag in communication range.
Fig. 4 is that the present invention calls the roll statistical system at the workflow diagram falling mobile RFID electronic tag in power points name mode.
Fig. 5 is that the present invention calls the roll statistical system at the workflow diagram falling power points name mode Zhong Wei circle card reader.
Fig. 6 be the present invention call the roll statistical system mobile RFID electronic tag in the time-frequency diversity point of impingement name mode of Background control communication channel and enclose the schematic diagram of communication channel of boundary's card reader.
Fig. 7 is that the present invention calls the roll the workflow diagram of statistical system mobile RFID electronic tag in the time-frequency diversity point of impingement name mode at Background control.
Embodiment
The present inventor finds: tradition adopts the demographics technology of mechanical means, exist be suitable for that scene is limited, construction cost is high, it is dumb to use and it is inaccurate to count, can not the problem such as Real-time Obtaining stream of people turnover situation.Therefore, the present inventor improves prior art, proposes a kind of novel roll-call statistical system based on RFID technique, overcomes the generation of the problems referred to above, expands scene applicability and improves counting accuracy rate.
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this instructions can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this instructions also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Fig. 1 shows the present invention and to call the roll statistical system system architecture schematic diagram in one embodiment.In actual applications, roll-call statistical system of the present invention is applicable in all kinds of particular places (such as station, exhibition center, subway station, airport or square etc.) of indoor or outdoors, for carrying out the personnel entering this particular place calling the roll registration and can obtaining the instant number of number in this scene in real time and exactly and personnel login the situation of publishing.As shown in Figure 1, in roll-call statistical system of the present invention, comprise: mobile RFID electronic tag 11, include multiple enclose boundary's card reader 12 enclose boundary's card reader pattern, include the central card reading unit pattern of at least one central card reading unit 13, and background server 14, wherein, described to enclose in boundary's card reader pattern multiple enclose that card reader compartment of terrain, boundary is laid in the periphery of particular place each read point, central card reading unit 13 in described central card reading unit pattern is located at the central area of described particular place and its communication range covers the roll-call region of described particular place, thus realize the reading simultaneous mobile RFID electronic tag 11 being carried out to id information.
Below each device above-mentioned is described in detail.
Mobile RFID electronic tag 11 is as mobile node.In the present invention, we have employed mobile RFID electronic tag 11 as mobile node, and mobile RFID electronic tag 11 has radio communication function.RFID(Radio Frequency IDentification) technology, i.e. REID, be a kind of communication technology, read and write related data by radio signal identification specific objective, and without the need to setting up machinery or optical contact between recognition system and specific objective.In the present embodiment, burning id information can be had in order in mobile RFID electronic tag 11, so, this mobile RFID electronic tag of mobile RFID electronic tag 11(of id information is had to be configurable on corresponding destination object when related personnel carries burning, such as admission ticket, invitation card or mobile terminal etc.) when passing in and out described particular place, it can be nowed forming, and when described id information is with after relatively personnel are mated, namely confirm corresponding personal information by the id information obtained in mobile RFID electronic tag 11, realize the function that personnel call the roll and add up.
Effective data interaction can be carried out with enclosing boundary's card reader 12 for making mobile RFID electronic tag 11, in actual applications, mobile RFID electronic tag 11 is provided with multiple communication channel, comprising: broadcast intercepts channel, for receiving the broadcast message from enclosing boundary's card reader 12 or background server 14; RFID transmitting channel, for sending the id information of self; Receive ID and intercept channel, for intercepting broadcast message to determine whether the id information of self; Omit feedback channel, after intercepting at described reception ID and there is no the id information of self in the broadcast message that channel determines to intercept, resend the id information of self.
Enclose boundary's card reader 12 and set up communication connection with central card reading unit 13 and background server 14, for read in communication range pass in and out described particular place each described in id information in mobile RFID electronic tag 11.As mentioned above, for make to enclose boundary's card reader 12 can to the described particular place of turnover each described in RFID 11 effectively read, in the present embodiment, preferably, enclose boundary's card reader 12 compartment of terrain to be laid on each reading point of the periphery of described particular place.As shown in Figure 1, assuming that described particular place is a rectangular square, then each encloses boundary's card reader 12 and is laid on four borders on described rectangle square according to certain spacing distance, wherein, preferably, four angles on described rectangle square are laid with a Ge Wei circle card reader 12.In addition, the adjacent spacing distance enclosing boundary's card reader 12 is roughly 3 meters to 8 meters (preferably, described spacing distance can be 5 meters), but not as limit, the communication coverage mainly enclosing boundary's card reader 12 by single and whole roll-call statistical system are determined for the requirement of counting of calling the roll, and, the adjacent spacing distance enclosing boundary's card reader 12 does not require all to obtain identical, such as: be unsuitable for personnel's turnover or having the regions such as barrier, enclosing boundary's card reader 12 can lay more sparse, that is, the adjacent spacing distance enclosing boundary's card reader 12 can suitably arrange larger; So and to Kou Deng region, main thoroughfare, enclose boundary's card reader 12 and can lay denser, the adjacent interval region enclosing boundary's card reader 12 then can suitably arrange smaller.Therefore, in described particular place, the required quantity laying get Wei circle card reader 12 is by the size of described particular place, arranges the decisions such as spacing distance.Further, in described Wei Jiewei circle card reader pattern, We conducted following setting: the communication radius enclosing boundary's card reader 12 described in adjacent is identical with their spacing distance.Preferably, Wei Jiewei circle card reader 12 can comprise invasion-detecting sensor.Summarize it, enclose boundary's card reader 12 read in communication range turnover described particular place each mobile RFID electronic tag 11 in id information mainly comprise: enclose boundary's card reader 12 broadcast singal in its communication range, entering in the communication range enclosing boundary's card reader 12 when the mobile RFID electronic tag 11 as mobile node and activated after receiving described broadcast singal, the boundary's card reader 12 of enclosing to correspondence reports id information.Follow-up, enclosing boundary's card reader 12 can report to central card reading unit 13 and/or background server 14 by the id information read.
Effective data interaction can be carried out with mobile RFID electronic tag 11 for making to enclose boundary's card reader 12, enclose boundary's card reader 12 and be provided with multiple communication channel, comprise: broadcast signaling transmitting channel, for sending current broadcast signaling to activate described mobile RFID electronic tag; RFID intercepts channel, for receiving the id information that described mobile RFID electronic tag is sent by described RFID transmitting channel; Receive ID and issue channel, for issuing the id information of being intercepted channel reception by described RFID; Omit feedback and intercept channel, for receiving the id information that described mobile RFID electronic tag is sent by described omission feedback channel.
Central authorities' card reading unit 13 encloses boundary's card reader 12 with each and background server 14 establishes a communications link, for reading the data that each encloses boundary's card reader 12 in communication range.In the present embodiment, central authorities' card reading unit 13 is positioned at the central area of described particular place and its communication range covers the roll-call region of described particular place, therefore, the roll-call region of particular place as described in communication range as central card reading unit 13 can not cover completely, then need to take corresponding regulating measures, such as: increase the quantity of central card reading unit 13 or adjust the installation position etc. of central card reading unit 13.In addition, and enclose compared with boundary's card reader 12, generally: the installation position enclosing boundary's card reader 12 is lower, and central card reading unit is positioned at central area, square, it is laid in higher position.Further, central card reading unit 13 and enclose when establishing a communications link between boundary's card reader 12 and first need to carry out system adjustment, to guarantee that central card reading unit 13 can read all data of enclosing boundary's card reader 12.
Background server 14 encloses boundary's card reader 12 with each and central card reading unit 13 establishes a communications link, for the maincenter as data processing.In the present embodiment, follow-up comprise id information management all data processings be all carry out in background server 14.Particularly, such as, background server 14 can collect each and enclose the id information that boundary's card reader 12 reports, described id information is stored, add up and the work such as to compare with the id information prestored, complete and call the roll and statistics (comprising the real-time change situation of total number of persons in described particular place and personnel's turnover), and where necessary, can check that each encloses the roll-call information of boundary's card reader 12 and/or central card reading unit 13 targetedly, and dispatch each and enclose boundary's card reader 12 and/or central card reading unit 13 carries out roll-call operation.
Below the practical application of the invention described above roll-call statistical system is described in detail further.
Call the roll in statistical system in the present invention, background server obtains id information and comprises the time-frequency diversity point of impingement name mode of falling power points name mode and Background control.
The power that falls be combined with sensory perceptual system is called the roll
Enclose boundary's card reader 12 and possess perceptional function, after detecting the roll-call region entering square with the personnel of mobile RFID electronic tag 11, starter node information read functions, now adopt less emissive power, only read the signal in sensing range, and carry out data interaction, the id information read from mobile RFID electronic tag 11 is sent to background server 14.
Refer to Fig. 2, the communication channel which show the communication channel in mobile RFID electronic tag 11 and enclose in boundary's card reader 12.As shown in Figure 2, all mobile RFID electronic tags 11 are be in dormant state under normal circumstances, (such as every 1 second only at set intervals, estimate that the speed of travel with the personnel of mobile RFID electronic tag 11 is less than or equal to 5 meter per seconds) once activate, to enter the reception state that channel is intercepted in broadcast.
Enter after in described particular place when enclosing the personnel that boundary's card reader 12 detects with mobile RFID electronic tag 11, enclose boundary's card reader 12 by broadcast signaling transmitting channel broadcast transmission activation instruction, signal of communication coverage is such as 5 meters.
Mobile RFID electronic tag 11 is intercepted channel by broadcast and is received from the laggard line activating of the activation instruction enclosing boundary's card reader 12, and be calibrated according to the time of the broadcast signaling transmitting channel enclosing boundary's card reader 12, and cut low power transmissions state, signal cover is also 10 meters.In this case, 2 ~ 3 Ge Wei circle card reader 12 only near mobile RFID electronic tag 11 can receive this signal.Generally, only adjacent Liang Gewei circle card reader 12 can receive signal, around the corner, sees a-quadrant in Fig. 3, and 3 Ge Wei circle card reader 12 will be had to receive this signal.
According to the density Estimation of wiping shoulder one after another, the density of personnel of 5 meters of communication ranges is about 350, but according to personnel 1 walking speed in second, receives about 70 mobile RFID electronic tags 11 that broadcast channel activation instruction activates within 1 second time.70 mobile RFID electronic tags 11 are switched on RFID transmitting channel and carry out reporting of id information, and suppose that id information reports frame length to be 32bit, transfer rate is 250kbps, then call time on and be about 2 milliseconds (ms).Reporting of 500 id informations can be received in principle within 1 second.But owing to there is collision probability, reporting of about 70 id informations substantially can be received.Due to being uniformly distributed of time frequency deviation, the collision probability of 70 mobile RFID electronic tags 11 will be less than the collision probability simultaneously activated.
(specifically Fig. 4 can be referred to): the id information of self transmission is reported to establish a communications link one or more by RFID transmitting channel and encloses boundary's card reader 12 by mobile RFID electronic tag 11 for mobile RFID electronic tag 11.In the present embodiment, missing rate is reported for reducing, more preferably, after mobile RFID electronic tag 11 has reported the id information of self, namely incision receives ID and intercepts channel and intercept, enter within 1 second, wake up once intercept state, enclose boundary's card reader 12 will by receive ID issue channel issue by described RFID intercept channel receive id information; If mobile RFID electronic tag 11 listens to the id information issued and have oneself, then proceed to broadcast and intercept channel, enter the state of intercepting; If mobile RFID electronic tag 11 does not listen to the id information of oneself in a period of time (such as: 2 seconds), then proceed to omission feedback channel, again reporting self ID, intercepting the id information of channel reception mobile RFID electronic tag 11 by described omission feedback channel transmission for enclosing boundary's card reader 12 by omitting feedback; Follow-up, mobile RFID electronic tag 11 is by omitting after feedback channel reported the id information of self, and incision receives ID and intercepts channel and intercept, enter within 1 second, wake up once intercept state, determine whether the id information listening to oneself again, and after listening to the id information of oneself, proceed to broadcast and intercept channel, enter the state of intercepting, otherwise, if do not listen to the id information of oneself yet, then proceed to omission feedback channel, again report self ID.
For enclosing (specifically can refer to Fig. 5) for boundary's card reader: two transmitting channels (broadcast signaling transmitting channel and receive ID issue channel) and two receive channels (RFID intercepts channel and omission feedback intercepts channel) of enclosing boundary's card reader 12 are in running order all the time, continue to send current broadcast frame by described broadcast signaling transmitting channel, intercept channel by described RFID and receive the id information that mobile RFID electronic tag 11 reported by described RFID transmitting channel, the id information feeding back and intercept channel reception mobile RFID electronic tag 11 and reported by described omission feedback channel is omitted by described, issue channel by described reception ID and issues the id information (comprise intercept channel from RFID and omit to feed back intercept the id information that channel obtains) be currently received.In the present embodiment, enclosing boundary's card reader 12 is after time delay 100 milliseconds, issue channel by described reception ID issue the id information just received, as do not received the omission feedback information from mobile RFID electronic tag 11 after id information issue, then stop announcing described id information, and described id information is sent to background server 14.
Finally, this kind is adopted to fall power points name mode, each encloses after the id information received separately is reported to background server 14 by boundary's card reader 12 and is collected by background server 14, the id information that same mobile RFID electronic tag 11 reports is received due to multiple boundary's card reader 12 of enclosing may be had, so, may there is redundancy in the id information that background server 14 receives, background server also needs the id information getting rid of redundancy, completes roll-call and statistical operation with this.
In addition, background server can timing or upgrade the id information collected in real time, and according to the change of id information, can learn the situation of marching into the arena and publishing of registration of personnel.
Further, adopt this kind to fall power points name mode, can when the stream of people be less, entering of the unauthorized personnel not carrying mobile RFID electronic tag 11 can be told, so, can report that this information is adopted remedial measures by it to background server 14, such as, report to the police.
The time-frequency diversity collision of Background control is called the roll
Background server is according to the id information be pooled to and total id information comparison, divide ID region and carry out the roll-call of time-frequency diversity, control the quantity of the mobile RFID electronic tag 11 in each time-frequency domain, and the mobile RFID electronic tag 11 in same time-frequency domain reports id information by csma (Carrier Sense Multiple Access, CSMA) collision mode.
Under the time-frequency diversity point of impingement name pattern of this Background control, generally performed by central card reading unit 13, central card reading unit 13 all carries out signal transmitting with peak power with mobile RFID electronic tag 11.
Background server controls described central card reading unit and announces roll-call frame, and the frame structure of described roll-call frame is as shown in table 1 below:
As shown in Table 1, in described roll-call frame, include but not limited to roll-call frame frame head, initial ID section, stop ID section, report the time period and report frequency range.
Central authorities' card reading unit 13, under the control of background server 14, both can be taked unordered reporting, and also can take to report in order.
Unorderedly to report described, described initial ID section and described termination ID section are all set to 0, the id information be missed reports all simultaneously.
Report in order described, for the id information omitted, divide the different time according to id information and frequency range reports.For the ID reported, do not make a speech in this stage.Generally speaking, the ID of omission is with 10 groupings, and the data between every 1 second are carried out collision and reported.Particularly, mobile RFID electronic tag 11 tentatively judges the time self sent according to self-ID information, namely carries out time delay slightly in the precedence in the id information interval that background server 14 is announced.Suppose worst situation, namely id information is all missed, then the data of 10000 nodes report needs 17 minutes, and background server 14 can increase as required and reports frequency range, and the pattern that multiband namely can be adopted simultaneously to work is to realize the roll-call to entirety in the short time.If need a point multiband, then roll-call frame needs repeatedly to send, and if the id information of mobile RFID electronic tag 11 is at initial ID and stop between ID, is then switched on frequency that roll-call frame formulates and carries out id information transmission.
The id information of mobile RFID electronic tag 11 with the corresponding relation above called time is: (id information/termination ID of this mobile RFID electronic tag 11) × above call time-node frame transmitting time.
Fig. 6 can be consulted, the mode of operation that the time-frequency diversity collision of Background control is called the roll is basic identical with falling power points name pattern, namely, at the mobile RFID electronic tag 11 that RFID transmitting channel and RFID additional channel are omitted, jump to omission feedback channel and carry out work, do not delay the working time of subsequent node.
Especially, at central card reading unit 13 working stage, enclose boundary's card reader 12 and be also in accepting state, intercept RFID transmitting channel and broadcast signaling transmitting channel simultaneously, the RFID received as enclosed boundary's card reader 12 sends signal and does not broadcast in broadcast signaling, Ze Wei circle card reader 12 sends this id information to background server and carries out process for subsequent use, and the id information situation that background server 14 can receive according to it is confirmed whether to receive this id information (as shown in Figure 7).
It should be noted that, the id information of omission is random value substantially, but can be added up in background server 14.Generally, the time-frequency diversity point of impingement name pattern of this Background control performs after can be finished substantially falling power points name pattern, it is longer to fall the power points name pattern execution time, the id information of the mobile RFID electronic tag 11 be recorded is more, and the workload of the time-frequency diversity point of impingement name pattern of this Background control is less.But the time-frequency diversity point of impingement name pattern of this Background control also can perform separately, namely all node datas are all reported by the time-frequency diversity point of impingement name pattern of this Background control, but the execution time can be relatively long.
The semireal time that the time-frequency diversity point of impingement name pattern of this Background control is also applicable in described particular place calls the roll, namely the id information once existed at present is often upgraded after a while, and filter out the id information changed by background server 14, the marching into the arena and leaving the theatre of registration of personnel.
Especially, central authorities' card reading unit 13 and enclose boundary's card reader 12 mode independently worked can be adopted also can to adopt the mode of both cooperatings, include but not limited to: enclose the id information do not occurred in broadcast frame that boundary's card reader 12 snoops, report to background server 14, and enclosing after card reader 12 pairs of id informations in boundary's pre-read, background server 14 is no longer called the roll to already present ID.
As mentioned above, a kind of roll-call statistical system of the present invention, comprise with id information mobile RFID electronic tag, compartment of terrain is laid in the multiple of the periphery of particular place and encloses boundary's card reader, be positioned at least one central card reading unit of the central area of described particular place, and background server, in the application, each is configured with a mobile RFID electronic tag per capita, when calling the roll, by enclosing boundary's card reader or enclosing coordinating of boundary's card reader and central card reading unit, read the id information entering the mobile RFID electronic tag of particular place, the id information of reading is reported to background server collected by background server, thus realize the roll-call statistics of personnel, relative to prior art, described roll-call statistical system structure is simple, installation is convenient and cost is lower, be applicable to multiple place, use flexibly, call the roll operation fast and accurately.In addition, background server can timing or upgrade the id information collected in real time, and according to the change of id information, can learn the situation of marching into the arena and publishing of registration of personnel, make people's flow management more scientific and provide real-time foundation for follow-up control measure.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (8)
1. a roll-call statistical system, is characterized in that, comprising:
As the mobile RFID electronic tag of mobile node, there is radio communication function and with id information;
Boundary's card reader pattern is enclosed in employing, comprise and multiplely enclose boundary's card reader, each enclosing described in multiple that card reader compartment of terrain, boundary is laid in the periphery of particular place reads point, for read in communication range the roll-call region of the described particular place of turnover each described in id information in mobile RFID electronic tag;
Adopt central card reading unit pattern, comprise at least one central card reading unit, described central card reading unit is located at the central area of described particular place and its communication range covers the roll-call region of described particular place, for reading the id information in described roll-call region in mobile RFID electronic tag in communication range;
Background server, establish a communications link with the described described central card reading unit of enclosing in boundary's card reader or described central card reading unit pattern described in enclose in boundary's card reader pattern multiple, enclose boundary's card reader described in each and/or described central card reading unit carries out roll-call operation for checking the roll-call information of enclosing boundary's card reader and/or described central card reading unit described in each and dispatching;
Described mobile RFID electronic tag is provided with multiple communication channel, comprising:
Broadcast intercepts channel, for receiving from described broadcast message of enclosing boundary's card reader or described background server;
RFID transmitting channel, for sending the id information of self;
Receive ID and intercept channel, for intercepting broadcast message to determine whether the id information of self;
Omit feedback channel, after intercepting at described reception ID and there is no the id information of self in the broadcast message that channel determines to intercept, resend the id information of self;
Described boundary's card reader of enclosing is provided with multiple communication channel, comprising:
Broadcast signaling transmitting channel, for sending current broadcast signaling to activate described mobile RFID electronic tag;
RFID intercepts channel, for receiving the id information that described mobile RFID electronic tag is sent by described RFID transmitting channel;
Receive ID and issue channel, for issuing the id information of being intercepted channel reception by described RFID;
Omit feedback and intercept channel, for receiving the id information that described mobile RFID electronic tag is sent by described omission feedback channel;
Described background server obtains id information and comprises the time-frequency diversity point of impingement name mode of falling power points name mode and Background control.
2. roll-call statistical system according to claim 1, is characterized in that, enclose in boundary's card reader pattern described, the communication radius enclosing boundary's card reader described in adjacent two is identical with their spacing distance; Described boundary's card reader of enclosing comprises invasion-detecting sensor.
3. roll-call statistical system according to claim 1, is characterized in that, described in fall power points name mode and comprise;
Described boundary's card reader of enclosing is when having detected mobile RFID electronic tag and having entered in described particular place, send activation instruction to described mobile RFID electronic tag to make it carry out proofreading according to the time of broadcast channel and to cut low power transmissions state by broadcast channel, described mobile RFID electronic tag the id information included is reported to establish a communications link described in enclose boundary's card reader;
After described mobile RFID electronic tag sends id information, incision receives ID and intercepts channel, the described id information enclosing boundary's card reader and will receive in broadcast distribution, if described mobile RFID electronic tag listens to the id information of oneself, then proceed to broadcast and intercept channel, enter the state of intercepting, if described mobile RFID electronic tag does not listen to the id information of oneself, then proceed to omission feedback channel, again self ID is reported, intercept channel for described boundary's card reader of enclosing and receive by omitting feedback the id information that described mobile RFID electronic tag sent by described omission feedback channel, described boundary's card reader of enclosing issuing the omission feedback information do not received after id information from described mobile RFID electronic tag, then stops issuing described id information, and described id information is reported to described background server,
Described background server collects the id information enclosing boundary's card reader described in each and report.
4. roll-call statistical system according to claim 3, is characterized in that, also comprise: described background server, according to each id information enclosing boundary's card reader described in each and report, gets rid of the id information of repeated and redundant.
5. roll-call statistical system according to claim 1, is characterized in that, the time-frequency diversity point of impingement name mode of described Background control comprises:
Background server is according to the id information be pooled to and total id information comparison, divide ID region and carry out the roll-call of time-frequency diversity, control the quantity of the mobile RFID electronic tag in each time-frequency domain, the mobile RFID electronic tag in same time-frequency domain reports id information by csma CSMA mode of colliding.
6. roll-call statistical system according to claim 5, is characterized in that, the time-frequency diversity point of impingement name mode of described Background control:
Described background server controls described central card reading unit and announces roll-call frame, in described roll-call frame, includes but not limited to roll-call frame frame head, initial ID section, stops ID section, reports the time period and report frequency range; Described central card reading unit, under the control of background server, is taked unorderedly to report or report in order;
Unorderedly to report described, the id information be missed all adopts CSMA mode to report simultaneously;
Report in order described, for the id information omitted, divide the different time according to id information and frequency range reports.
7. call the roll as claimed in claim 1 statistical system, it is characterized in that, described central card reading unit and described boundary's card reader of enclosing independently work or both cooperatings, include but not limited to:
The described id information do not occurred in broadcast frame enclosing boundary's card reader and snoop, reports to described background server;
Describedly enclose after boundary's card reader pre-reads id information, described background server is no longer called the roll to already present ID.
8. roll-call statistical system according to claim 1, is characterized in that, the quantity of described central card reading unit is fixed according to the communication range of described central card reading unit and the size of described particular place.
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| CN104702698B (en) * | 2015-03-25 | 2019-01-25 | 杰克缝纫机股份有限公司 | The network terminal, sewing machine and the multi-computer communication method and system based on radio frequency |
| CN114019862A (en) * | 2021-11-01 | 2022-02-08 | 西安热工研究院有限公司 | Wisdom power plant safety coefficient is with personnel developments device of calling roll |
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| CN101582182A (en) * | 2009-03-16 | 2009-11-18 | 深圳市丰泰瑞达实业有限公司 | Method, system and server for statistical processing of tourist flow data |
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