CN201017402Y - Safety-door device for detecting - Google Patents
Safety-door device for detecting Download PDFInfo
- Publication number
- CN201017402Y CN201017402Y CNU2007201072642U CN200720107264U CN201017402Y CN 201017402 Y CN201017402 Y CN 201017402Y CN U2007201072642 U CNU2007201072642 U CN U2007201072642U CN 200720107264 U CN200720107264 U CN 200720107264U CN 201017402 Y CN201017402 Y CN 201017402Y
- Authority
- CN
- China
- Prior art keywords
- safety
- door shell
- door
- antenna
- shell body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
An emergency exit device for testing use is provided, which comprises a door shell, a mounting board in the cavity of the door shell, and a reader/writer, an antenna, and an alarm module fixed to the mounting board; wherein, the emergency exit device is characterized in: the antenna comprises two antennae, and works in 902MHz swung dash 928MHz receive frequency range, and the two antennae are fixed to the mounting board in central part of the door shell in a staggered manner. Since the utility model employs two UHF antennae and the antennae are arranged in a stagger manner, such a structure can improve the recognition rate and cover the scope of books held by the readers completely, so as to detect all possible locations of the books completely, remotely, and quickly. Therefore, the utility model has a long and wide detection range, without misreport, and thereby can improve anti-theft performance greatly.
Description
Technical field
The utility model relates to a kind of safety-door device, refers to that specifically a kind of being applied to detect the safety-door device that has the electronic tag books in the places such as library with radio RF recognition technology.
Background technology
Anti-theft technique in the present library, still adopt magnetic stripe technology mostly, magnetic stripe promptly is installed in books and reference materials, when books administrative staff is borrowed formality for the reader handles, magnetic stripe in these books has been carried out demagnetization, and the reader just can waltz through safety-door device like this.Otherwise after the magnetic stripe anti-theft technique in the safety-door device detects the magnetic of magnetic stripe, can send corresponding alerting signal.Obviously, adopt such technology, can play antitheft effect to a certain extent.Because magnetic stripe demagnetization sometimes is insufficient, also can produce wrong report, brings a lot of inconvenience to the reader.The magnetic stripe anti-theft technique be realize by the magnetic that detects magnetic stripe antitheft, can't writing information in the magnetic stripe, also just can not know the information of corresponding books in time, thereby reduce the configuration management efficient in library.Also exist simultaneously and detect the near drawback of distance, stealer is had an opportunity to take advantage of.
For this reason, people design radio RF recognition technology and carry out taking care of books, and electronic tag just is installed in books and reference materials, dispose the radio frequency identification safety-door device simultaneously, are used for detecting handling the above-mentioned books of borrowing formality.This safety-door device comprises the door shell body, be arranged in the installing plate of door shell intracoelomic cavity and be fixed on read write line, antenna and alarm module on the installing plate.During use, control computer links to each other with read write line by network interface, to the read write line transmitting control commands.When having the books process safety door of electronic tag, the radio frequency signal that antenna in the safety door sends can activate the electronic tag in the books, make electronic tag work, and its information sent to antenna, antenna is sent to read write line by the radio-frequency cable line again with the electronic labeling information that receives, read write line sends electronic labeling information to control computer by decoding, and control computer is compared to the data in electronic labeling information and the database.Do not borrow formality if the books of electronic tag correspondence are handled, then can start alarm module and carry out sound and light alarm.Obviously, after the employing said system, can overcome the defective of legacy magnetic stripe technology preferably.But because currently used radio RF recognition technology belongs to high-frequency range, promptly frequency of operation is 13.56MHz, is subjected to the influence of its frequency of operation, exists the little defective of sensing range, also can't reach best identified region.
Summary of the invention
Technical problem to be solved in the utility model is the present situation at prior art, provides a kind of antenna arrangement reasonable, the safety-door device that recognition capability is strong, sensing range is big.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the safety-door device of this detection usefulness comprises the door shell body, be arranged in the installing plate of door shell intracoelomic cavity and be fixed on read write line, antenna and alarm module on the installing plate, it is characterized in that: described antenna has two, and receive frequency range is between 902MHz～928MHz, and departs from mutually on the installing plate that is fixed in the door shell body central region stragglyly.
As further improvement of the utility model, between 300 millimeters～900 millimeters, its width is between 0～250 millimeter of described door shell body vertical center line both sides to described central region with respect to the height of door shell body bottom.Such zone can cover the scope of books and reference materials that the reader holds, and detects in all directions with realization.
As another kind of improvement the of the present utility model, described installing plate is provided with the portait slot bore of two parallel distributions, and described two antennas are fixed along long slot bore separately respectively, and the antenna upper-lower position can be adjusted easily.
Can be provided with the control interface of the described alarm module of control on the described read write line, just alarm module is directly to control warning by read write line, makes installation and maintenance convenient.
Compared with prior art, because two antennas that the utility model adopts ultrahigh frequency to receive, and both depart from distribution straggly, therefore, such structure both can improve recognition speed, can cover simultaneously the scope of books that the reader holds again preferably, to the orientation that books may exist carry out comprehensively, at a distance, detection fast.So the utility model detects distance, sensing range is big, can improve theftproof performance significantly.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Two fans were installed the putting position synoptic diagram of door gears when Fig. 2 was use;
Fig. 3 is the principle of work synoptic diagram of safety-door device.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, this safety-door device comprises door shell body 1, be arranged in the installing plate 2 and the read write line that is fixed on the installing plate 2 of door shell intracoelomic cavity, antenna and alarm module, here, alarm module adopts conventional sound and light alarm module, and read write line, antenna also adopts routine techniques, in the drawings all less than showing, just shown installation site separately, promptly lay respectively at door shell body lower portion, the read write line installation site 3 at middle part and position, top, antenna installation site 4, alarm module erecting device 5, wherein, antenna has two, their receive frequency range and departs from the installing plate that is fixed in the door shell body central region between 902MHz～928MHz mutually stragglyly.
In the present embodiment, between 300 millimeters～900 millimeters, its width W is between 0～250 millimeter of door shell body vertical center line both sides to above-mentioned central region, promptly is positioned at the both sides of door shell body vertical center line with respect to the height H of door shell body 1 bottom.Portait slot bore 21, two antennas that also are provided with simultaneously two parallel distributions on above-mentioned installing plate can be fixed along long slot bore separately respectively, so that antenna can carry out Fast Installation in the zone of setting.In addition, also be provided with cable passage mouth 11, in the passway, be equipped with baffle plate in the lower portion of door shell body.
During application, place the above-mentioned safety-door device of two fans in required occasion, they are put relatively, as shown in Figure 2, both distance L can be adjustable in 0 to 3000 millimeter scope.Read write line adopts Ethernet interface to link to each other with main control system, as shown in Figure 3, has the control interface of control acousto-optic alarm module on the read write line, makes read write line directly start the work of sound and light alarm module, and installation and maintenance is easier like this; And read write line links to each other with antenna by the radio-frequency cable line again., also adopted anti-zero track perturbation technique here, made two fan safety-door devices carry out work simultaneously, and can not produce the phenomenon of phase mutual interference.Simultaneously when a fan safety-door device when breaking down, but another fan safety-door device operate as normal still, and therefore, safe reliability of the present utility model is higher.
During detection, when the antenna in the safety door receives electronic labeling information in the books and reference materials, in time send this information to read write line, read write line sends control computer to by the back information of decoding, and control computer is compared to the data in electronic labeling information and the database.Do not borrow formality if the books of electronic tag correspondence are handled, then can send alarm command, after read write line receives alarm command, directly start alarm module and carry out sound and light alarm to read write line.Borrow formality if the books of electronic tag correspondence have been handled, then the reader can successfully pass through this safety-door device.
Claims (4)
1. safety-door device that detects usefulness, it comprises door shell body (1), be arranged in the installing plate (2) of door shell intracoelomic cavity and be fixed on read write line, antenna and alarm module on the installing plate, it is characterized in that: described antenna has two, and receive frequency range is between 902MHz～928MHz, and departs from mutually on the installing plate that is fixed in the door shell body central region stragglyly.
2. the safety-door device of detection usefulness according to claim 1, it is characterized in that: between 300 millimeters～900 millimeters, its width (W) is between 0～250 millimeter of described door shell body vertical center line both sides to described central region with respect to the height (H) of door shell body bottom.
3. the safety-door device of detection usefulness according to claim 1 and 2 is characterized in that: described installing plate (2) is provided with the portait slot bore (21) of two parallel distributions, and described two antennas are fixed along long slot bore separately respectively.
4. the safety-door device of detection usefulness according to claim 1 and 2 is characterized in that: described read write line is provided with the control interface of the described alarm module action of control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201072642U CN201017402Y (en) | 2007-03-15 | 2007-03-15 | Safety-door device for detecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201072642U CN201017402Y (en) | 2007-03-15 | 2007-03-15 | Safety-door device for detecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017402Y true CN201017402Y (en) | 2008-02-06 |
Family
ID=39057900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201072642U Expired - Fee Related CN201017402Y (en) | 2007-03-15 | 2007-03-15 | Safety-door device for detecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201017402Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093554A (en) * | 2011-11-03 | 2013-05-08 | 深圳市海恒智能技术有限公司 | Mobile library system |
| CN103136824A (en) * | 2011-12-05 | 2013-06-05 | 艾迪讯科技股份有限公司 | Radio frequency identification book management safety door |
| CN105741388A (en) * | 2016-01-25 | 2016-07-06 | 南京大学 | RFID technology based library access system |
-
2007
- 2007-03-15 CN CNU2007201072642U patent/CN201017402Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093554A (en) * | 2011-11-03 | 2013-05-08 | 深圳市海恒智能技术有限公司 | Mobile library system |
| CN103093554B (en) * | 2011-11-03 | 2015-10-28 | 深圳市海恒智能技术有限公司 | Mobile library system |
| CN103136824A (en) * | 2011-12-05 | 2013-06-05 | 艾迪讯科技股份有限公司 | Radio frequency identification book management safety door |
| CN105741388A (en) * | 2016-01-25 | 2016-07-06 | 南京大学 | RFID technology based library access system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104919510A (en) | Induction system for detecting and identifying vehicles, induction registration plate and induction reader | |
| JP2011096248A (en) | Rfid-based reader | |
| CN103577781A (en) | RFID entry-and-exit recognition system and in-and-out recognition method thereof | |
| CN103136824A (en) | Radio frequency identification book management safety door | |
| CN101587607A (en) | Opening type radio frequency automatic identification gate control system | |
| CN201017402Y (en) | Safety-door device for detecting | |
| CN102184611A (en) | RFID (radio frequency identification) anti-theft monitoring system of radiating source | |
| CN103377385A (en) | Hotel guest room intelligent guide system based on radio frequency identification device (RFID) | |
| CN107284474B (en) | The active positioning method of metallurgic railway rolling stock | |
| CN102054358A (en) | Control system and method of electronic license plate | |
| CN101515406A (en) | Method for distinguishing fake license plate at distant range | |
| CN203455851U (en) | RFID (Radio Frequency Identification) entering and exiting recognition system | |
| CN111255278A (en) | Intelligent induction parking device, method and system, vehicle and server | |
| CN102467102A (en) | Boundary control method, system thereof, low frequency positioner and identification card | |
| CN201440284U (en) | Dual-safety access control device | |
| CN107093234A (en) | A kind of UHF access control systems | |
| CN201540587U (en) | Metal anti-dismantling electronic tag of UHF band license plate | |
| CN203338488U (en) | Round-the-clock building-entrance-guard intelligent anti-theft early warning system based on RFID | |
| CN210836453U (en) | Anti-theft monitoring device for overhead cable | |
| CN2816937Y (en) | Ventilator with electronic label for container and container using same | |
| CN100378744C (en) | System for tracing target in long and large space using radio card | |
| CN208300035U (en) | A kind of vehicle-mounted mobile base station of building public safety radio frequency control net | |
| CN201527470U (en) | GPS vehicle-mounted terminal with RFID identification function | |
| CN106340075A (en) | Prisoner visiting method for prison | |
| CN202453976U (en) | Entrance guard device of optical cable distribution box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20130315 |