CN205920514U - Attendance equipment based on RFID - Google Patents
Attendance equipment based on RFID Download PDFInfo
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- CN205920514U CN205920514U CN201620769144.8U CN201620769144U CN205920514U CN 205920514 U CN205920514 U CN 205920514U CN 201620769144 U CN201620769144 U CN 201620769144U CN 205920514 U CN205920514 U CN 205920514U
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- read
- active card
- write cell
- rfid
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Abstract
The utility model relates to a communication equipment field especially relates to an attendance equipment based on RFID, active card still is equipped with awakening circuit, active card adopts 5.8GHz's active RFID card, still include the reading and writing unit with active calorie of wireless communication, the control unit, connect reading and writing unit. Compared with the prior art, the utility model, the adoption is equipped with awakening circuit's active card, through its entering or leave reading and writing unit's the scope of predetermineeing, realizes that the mode of active card switches between state of dormancy and operating condition, has reduced the consumption of active card, has prolonged life, and active slide caliper rule are very little less, portable, adopt the control unit to arrange in order according to the information that reading and writing unit gathered to acquire accurate attendance data, improved the degree of accuracy of attendance.
Description
Technical field
This utility model is related to communication equipment field, more particularly, to a kind of Time Attendance Device based on rfid.
Background technology
With the pay attention to day by day to safety problem for the people, various gateways carry out authentication or the record that comes in and goes out will
Ask and increasingly popularize, such as meeting-place admission record, school's discrepancy school management etc..
Current wireless Non-contact attendance system is mainly using high frequency or hyperfrequency (uhf) REID.High
Usually less than 1 meter of frequency technology reading/writing distance, the smaller gateway of suitable flow of the people, such as: the scene that personnel can pass through one by one.
Current super high frequency technique mainly adopts the ultra-high frequency band that wireless communication frequency band is 2.4ghz, and usual reading/writing distance can be as far as
100 meters, it is primarily adapted for use in the larger gateway of flow of the people.Although the ultra-high frequency band of 2.4ghz has excellent covering performance,
But also result in simultaneously antenna read-write region excessive, after antenna to sensitivity higher the problems such as.This needs for directional detection
The scene asked such as school gateway personnel detection etc., will result in and misread and walking direction mistake, the accuracy rate of identification is relatively low.
The existing rfid attendance checking system based on 2.4ghz frequency range, active card terminal chip always works at periodic emission
State, therefore its average power consumption are larger, and service life is restricted.Therefore a kind of method of compromise is that cooperation 125khz is this low
Frequency wireless technology carries out near field activation and wakes up, and also need to bury coil in the ground bottom surface of respective regions, such a process increases material list
Cost and site operation cost, and it is limited to the inductance volume being used as antenna of 125khz, often this compound active card
Thickness ratio is larger, and Consumer's Experience effect is poor.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides one kind to be intended to improve identification accuracy, subtract
The power consumption of rare source card terminal core, extends the equipment of the work attendance based on rfid of its service life.
For achieving the above object, design a kind of Time Attendance Device based on rfid, have including control unit, server, record
The active card of authentication information, described authentication information includes No. id with described active card unique match, the work of described active card
Operation mode include resting state and working condition it is characterised in that
Described active card is additionally provided with wake-up circuit；Described active card adopts the active rfid card of 5.8ghz；
Also include at least one read-write cell with active card wireless telecommunications, described read-write cell adopts ask modulated signal
In order to wake up described active card with the forms of broadcasting in preset range, so that the mode of operation of active card is converted to by resting state
Working condition, and active card when gathering in running order is with the authentication information of predetermined period Mode Launch and information about power,
And record time when active card is communicated and record and receipt signal strong and weak instruction data during active card communication with read-write cell；
Time when described authentication information, information about power, communication, receipt signal strong and weak instruction data constitute transmission information；
After active card leaves preset range, the mode of operation of active card is converted to resting state by working condition, and stops
Only transmitting authentication information and information about power；
Described control unit, connects described read-write cell, in order to receive the transmission information of read-write cell upload；And extract
The time when authentication information in transmission information and described communication forms the attendance data of this active card；
Described server, connects described control unit, in order to store described attendance data, and described attendance data is entered
Row statistics, inquiry and push.
Described ask modulated signal adopts ask square-wave modulation signal.
Described read-write cell includes setting up separately the first read-write cell in gateway both sides, the second read-write cell, and described
One read-write cell is connected described control unit, or the first described reading using Ethernet in a parallel fashion with the second read-write cell
R/w cell is connected described control unit with bus mode using rs485 with the second read-write cell；
The first described read-write cell and the second read-write cell are provided with different reception threshold values.
, at least provided with one, the second described read-write cell is at least provided with one for the first described read-write cell.
Described control unit is wirelessly connected or wired connection with described server.
Described wired connection adopts Ethernet or rs485 or optical fiber.
Described is wirelessly connected as using any one in 2g, 3g or 4g.
Described read-write cell adopts the multiwire antenna of 5.8ghz.
This utility model compared with prior art, using the active card being provided with wake-up circuit, is entered by it or leaves reading
The preset range of r/w cell, the mode of operation realizing active card switches between resting state and working condition, reduces active
The power consumption of card, extends service life；And active card size is less, it is easy to carry；Adopted according to read-write cell using control unit
The information of collection is arranged, and to obtain accurate attendance data, improves the accuracy of work attendance.
Brief description
Fig. 1 is this utility model operation principle block diagram in one embodiment.
Fig. 2 is this utility model operation principle block diagram in another embodiment.
Specific embodiment
Below in conjunction with accompanying drawing, the technical scheme in this utility model embodiment is clearly and completely described, shows
So, described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.New based on this practicality
Embodiment in type, the every other reality that those of ordinary skill in the art are obtained on the premise of not making creative work
Apply example, broadly fall into the scope of this utility model protection.
It should be noted that in the case of not conflicting, the embodiment in this utility model and the feature in embodiment can
To be mutually combined.
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as of the present utility model
Limit.
Embodiment 1
Referring to Fig. 1, a kind of attendance checking system based on rfid of this utility model, have including control unit, server, record and recognize
The active card of card information, described authentication information includes No. id with described active card unique match, the work of described active card
Pattern includes resting state and working condition, and in this example, active card adopts the active rfid card of 5.8ghz；
Described active card is additionally provided with wake-up circuit；Described active card adopts the active rfid card of 5.8ghz；
Also include at least one read-write cell with active card wireless telecommunications, described read-write cell adopts ask modulated signal
In order to wake up described active card with the forms of broadcasting in preset range, so that the mode of operation of active card is converted to by resting state
Working condition, and active card when gathering in running order is with the authentication information of predetermined period Mode Launch and information about power,
And record time when active card is communicated and record and receipt signal strong and weak instruction data during active card communication with read-write cell；
Time when described authentication information, information about power, communication, receipt signal strong and weak instruction data constitute transmission information；
After active card leaves preset range, the mode of operation of active card is converted to resting state by working condition, and stops
Only transmitting authentication information and information about power；
Described control unit, connects described read-write cell, in order to receive the transmission information of read-write cell upload；And extract
The time when authentication information in transmission information and described communication forms the attendance data of this active card；
Described server, connects described control unit, in order to store described attendance data, and described attendance data is entered
The work attendance situation of student is such as pushed to head of a family etc. by row statistics, inquiry and push, is easy to allow the head of a family know that oneself child turnover is learned
The whereabouts in school.
Further, described ask modulated signal adopts ask square-wave modulation signal.
Adopt the multiwire antenna excipient technology of 5.8ghz in this example, the sky of good excipient can be obtained in less size
Line, can control communication zone well, improve the accuracy of collection information.
In this example, the mode of operation of active card can be converted to work shape by resting state in the preset range of read-write cell
State, is converted to resting state by working condition when active card is left in preset range again, reduces the power consumption of active card, extends
Its service life, and its size is less is easy to carry, Consumer's Experience effect is good；The letter that control unit uploads according to read-write cell
Breath is arranged, and to obtain accurate attendance data, improves the accuracy of work attendance.
In this example, active card can be the card with identity information that user wears, and it has the id of unique identification
Number, for completing the two-way communication and read-write cell between, provide authentication information.At ordinary times in a dormant state, Dang Qichu
When the multiwire antenna communication overlay area of 5.8ghz, can be waken up to working condition, complete the many oscillators sky with 5.8ghz
Two-way communication between line, enters resting state after away from overlay area.
Embodiment 2
Referring to Fig. 2, apply to the scene that a kind of gateway shares, it is impossible to enter if configuring single read-write cell
Row comes in and goes out walking direction, and described in this example is to carry out judging the situation that user enters outgoing direction using two read-write cells cooperations,
If certainly larger occasion is it is also possible to setting is multiple.
Read-write cell described in this example includes setting up separately the first read-write cell in gateway both sides, the second read-write cell, institute
The first read-write cell stated is connected described control unit using Ethernet in a parallel fashion with the second read-write cell, or described
First read-write cell is connected described control unit with bus mode using rs485 with the second read-write cell；The first described read-write
Unit and the second read-write cell are provided with different reception threshold values.In this utility model, the threshold value of reception is to be related to coverage
, threshold value is too little, and coverage just becomes big, need according to actual scene settings it is therefore an objective to increase cover while, it is to avoid two
The coverage distance of individual read-write cell is overlapping.
In this example, when the personnel carrying active card walk close to from afar and reach the overlay area of the first read-write cell,
Namely in Fig. 2 during dashed region, active card receives the specific broadcast singal of the first read-write cell, namely sent with the forms of broadcasting
Wake-up signal, the ask modulated signal of such as 14khz, the wake-up circuit of active card detects receiving power in preset range
Exceed the reception threshold value of setting, provide wake-up interrupts, activation active card enters working condition；Active card enters periodic emission shape
State, actively launches No. id, the information about power of itself to the first read-write cell；No. id of first read-write cell record active card, electricity
The time during Current communications of amount information, active card and the first read-write cell and receipt signal strong and weak instruction data rssi；Active
Card leaves the overlay area of the first read-write cell, and active card receives the wake-up thresholding that ask strength of modulating signal is less than it and sets, and enters
Enter resting state, stop transmitting authentication information and information about power, the first read-write cell sends relevant transmission information to control again
Unit processed.
When then carrying the personnel of active card and walking close to from afar and reach the overlay area of the second read-write cell, namely Fig. 2
During middle dashed region, active card receives the specific broadcast singal of the second read-write cell, and the wake-up circuit of active card detects and connects
Receive the reception threshold value that power exceedes setting, provide wake-up interrupts, activation active card enters working condition；The active card entrance cycle is sent out
Penetrate state, actively launch No. id, the information about power of itself to the second read-write cell；The id of the second read-write cell record active card
Number, the Current communications of information about power, active card and the second read-write cell when time and receipt signal strong and weak instruction data rssi.
Active card leaves the overlay area of the second read-write cell, and active card receives the wake-up door that ask strength of modulating signal is less than it and sets
Limit, enters resting state, stops transmitting authentication information and information about power, the second read-write cell by relevant transmission information send to
Control unit.So far realize a unidirectional entrance step；Otherwise then leave, complete one and enter exit pattern.
That is, the judgement of described direct of travel is:
According to time order and function order, if the active card that control unit is recorded is followed successively by and is introduced into the first read-write cell and sets
The first fixed predeterminable area, further out the first predeterminable area, enters back into the second predeterminable area that the second read-write cell sets, then from
Open the second predeterminable area, be then judged as direction of entering；
According to time order and function order, if the active card that control unit is recorded is followed successively by and is introduced into the second read-write cell and sets
The second fixed predeterminable area, further out the second predeterminable area, enters back into the first predeterminable area that the first read-write cell sets, then from
Open the first predeterminable area, be then judged as direction of going out.
In this example, control unit is by the first read-write cell when No. id of active card, turnover gateway and the second read-write cell
The information such as time are uploaded to server, form the attendance information that can judge into outgoing direction.
In this example, control unit can be such as using wireless 2g or arbitrary in 3g, or 4g using being wirelessly connected with server
The communication planted.
Control unit and server can also adopt wired connection, such as using wired Ethernet, or rs485, or optical fiber
Mode.
The foregoing is only this utility model preferred embodiment, not thereby limit embodiment of the present utility model and
Protection domain, to those skilled in the art it should can appreciate that in all utilization this utility model description and diagram
Scheme obtained by holding made equivalent and obviously changing, all should be included in protection model of the present utility model
In enclosing.
Claims (8)
1. a kind of Time Attendance Device based on rfid, has the active card of authentication information including control unit, server, record, described
Authentication information include with described active card unique match No. id, the mode of operation of described active card includes resting state and work
Make state it is characterised in that
Described active card is additionally provided with wake-up circuit；Described active card adopts the active rfid card of 5.8ghz；
Also include at least one read-write cell with active card wireless telecommunications, described read-write cell adopt ask modulated signal in order to
Wake up described active card with the forms of broadcasting in preset range, so that the mode of operation of active card is converted to work by resting state
State, and active card when gathering in running order is with the authentication information of predetermined period Mode Launch and information about power, and remember
Time when record active card is communicated with read-write cell and record and receipt signal strong and weak instruction data during active card communication；Described
Authentication information, information about power, communication when time, receipt signal strong and weak instruction data constitute transmission information；
After active card leaves preset range, the mode of operation of active card is converted to resting state by working condition, and stops sending out
Penetrate authentication information and information about power；
Described control unit, connects described read-write cell, in order to receive the transmission information of read-write cell upload；And extract transmission
The time when authentication information in information and described communication forms the attendance data of this active card；
Described server, connects described control unit, in order to store described attendance data, and described attendance data is united
Meter, inquiry and push.
2. the Time Attendance Device based on rfid as claimed in claim 1 is it is characterised in that described ask modulated signal adopts ask
Square-wave modulation signal.
3. the Time Attendance Device based on rfid as claimed in claim 1 it is characterised in that
Described read-write cell includes setting up separately the first read-write cell in gateway both sides, the second read-write cell, described the first reading
R/w cell is connected described control unit using Ethernet in a parallel fashion with the second read-write cell, or the first described read-write is single
Unit is connected described control unit with bus mode using rs485 with the second read-write cell；
The first described read-write cell and the second read-write cell are provided with different reception threshold values.
4. the Time Attendance Device based on rfid as claimed in claim 3 is it is characterised in that the first described read-write cell at least sets
There is one, the second described read-write cell is at least provided with one.
5. the Time Attendance Device based on rfid as claimed in claim 1 is it is characterised in that described control unit and described server
Wireless connection or wired connection.
6. the Time Attendance Device based on rfid as claimed in claim 5 is it is characterised in that described wired connection adopts Ethernet
Or rs485 or optical fiber.
7. the Time Attendance Device based on rfid as claimed in claim 5 it is characterised in that described be wirelessly connected as using 2g,
Any one in 3g or 4g.
8. the Time Attendance Device based on rfid as described in any one of claim 1～7 is it is characterised in that described read-write cell is adopted
Multiwire antenna with 5.8ghz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620769144.8U CN205920514U (en) | 2016-07-21 | 2016-07-21 | Attendance equipment based on RFID |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620769144.8U CN205920514U (en) | 2016-07-21 | 2016-07-21 | Attendance equipment based on RFID |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205920514U true CN205920514U (en) | 2017-02-01 |
Family
ID=57872254
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620769144.8U Active CN205920514U (en) | 2016-07-21 | 2016-07-21 | Attendance equipment based on RFID |
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| Country | Link |
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| CN (1) | CN205920514U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107038764A (en) * | 2016-07-21 | 2017-08-11 | 上海先斯智能技术有限公司 | A kind of attendance checking system based on RFID |
| CN110276850A (en) * | 2018-03-16 | 2019-09-24 | 甲骨文国际公司 | Beacon time input system |
| CN116711331A (en) * | 2020-08-05 | 2023-09-05 | 罗伯特·博世有限公司 | Control system for intelligent construction site and electronic equipment thereof |
-
2016
- 2016-07-21 CN CN201620769144.8U patent/CN205920514U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107038764A (en) * | 2016-07-21 | 2017-08-11 | 上海先斯智能技术有限公司 | A kind of attendance checking system based on RFID |
| CN110276850A (en) * | 2018-03-16 | 2019-09-24 | 甲骨文国际公司 | Beacon time input system |
| CN116711331A (en) * | 2020-08-05 | 2023-09-05 | 罗伯特·博世有限公司 | Control system for intelligent construction site and electronic equipment thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190410 Address after: Room 308, Building 588 Longchang Road, Yangpu District, Shanghai 200090 (Centralized Registration Place) Patentee after: Shanghai Micro Oak Technology Co., Ltd. Address before: Room 205, Building 2, 2369 Wuwei Road, Putuo District, Shanghai, 2003 Patentee before: Shanghai pioneer Intelligent Technology Co., Ltd. |