CN115775420A - Security door system and detection method thereof - Google Patents
Security door system and detection method thereof Download PDFInfo
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- CN115775420A CN115775420A CN202211624065.4A CN202211624065A CN115775420A CN 115775420 A CN115775420 A CN 115775420A CN 202211624065 A CN202211624065 A CN 202211624065A CN 115775420 A CN115775420 A CN 115775420A
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Abstract
The invention provides a safety door system and a detection method thereof, wherein the safety door system comprises a plurality of safety door devices, each safety door device comprises a main door and an auxiliary door establishing a radio frequency tag detection channel with the main door, and a channel switching circuit for switching the auxiliary door of a first safety door device into a mode of establishing the radio frequency tag detection channel with the main door of the first safety door device or with the main door of a second safety door device. According to the safety door system, the auxiliary door of the safety door equipment can form a radio frequency tag detection channel with the main door of the safety door equipment where the auxiliary door is located through the channel switching circuit, and can also form a radio frequency tag detection channel with the main doors of other safety door equipment, so that the utilization rate of the safety door equipment is improved, and the arrangement cost of the safety door system is reduced.
Description
Technical Field
The invention relates to the technical field of radio frequency, in particular to a safety door system and a detection method thereof.
Background
At present, the radio frequency technology is widely applied to various industries, commodity or identity recognition is realized by reading and writing radio frequency tags and checking the legality of the radio frequency tags, and the basis of the Internet of things is established. For example, a security gate is arranged at an exit of a supermarket to detect whether goods carried by customers have finished a payment procedure; and arranging safety doors at the conference entrance, the library entrance, the exhibition hall entrance, the company entrance and other environments, and verifying whether the personnel carrying or wearing the corresponding radio frequency tags have the right to enter the places through the safety doors.
In practice, because various entrances and exits are generally wide, it is difficult to completely and effectively detect the radio frequency tags passing through the entrances and exits by using a group of safety doors, and the width of the entrances and exits is large, so that radio frequency signals transmitted between a main door and an auxiliary door of the group of safety doors need to pass through a long transmission distance, the signals will be seriously attenuated, and the problems of detection omission or false detection and the like are caused.
To solve this problem, multiple sets of security doors are usually installed at the entrance and exit to reduce the problems of missing detection or false detection due to signal attenuation. Each group of safety doors are provided with a reader-writer, and the safety doors are controlled to work through the reader-writer. However, since the safety doors of the two adjacent groups cannot cooperate with each other, an inspection blind area is generated between the main door of the first group of safety doors and the auxiliary door of the second group of safety doors when the first group of safety doors and the second group of safety doors are adjacently arranged, and therefore, the inspection blind area is generated between the main door of the first group of safety doors and the auxiliary door of the second group of safety doors, and the inspection is missed.
Disclosure of Invention
The present invention is directed to solving the above problems and to providing a safety door system and a detection method thereof.
The technical scheme adopted by the invention is as follows:
the invention provides a safety door system which comprises a plurality of safety door devices, wherein each safety door device comprises a main door and an auxiliary door establishing a radio frequency tag detection channel with the main door, and a channel switching circuit for switching the auxiliary door of a first safety door device to establish the radio frequency tag detection channel with the main door of the first safety door device or with the main door of a second safety door device.
Furthermore, the safety door system further comprises a controller, the safety door equipment further comprises a reading and writing module and radio frequency antennas arranged on the main door and the auxiliary door, and the channel switching circuit is electrically connected with the radio frequency antennas on the auxiliary door;
and the controller controls the channel switching circuit of the first safety door equipment through the read-write module of the first safety door equipment or the second safety door equipment at different time slots in a time division multiplexing mode, so that the radio frequency antenna on the main door of the first safety door equipment or the second safety door equipment and the radio frequency antenna on the auxiliary door of the first safety door equipment establish the radio frequency tag detection channel.
In one embodiment, the controller is one of the read-write modules of a plurality of security gate devices.
Furthermore, the channel switching circuit comprises a plurality of switching control circuits, the switching control circuits are respectively electrically connected with the plurality of reading and writing modules, and the switching control circuits are connected in parallel and electrically connected with the radio frequency antenna on the auxiliary door.
Furthermore, the switching control circuit comprises an electronic switch circuit and a first isolation circuit connected in parallel with the electronic switch circuit, the first isolation circuit is switched on or off by a control signal output by the controller, and the read-write module outputs a radio frequency signal to the radio frequency antenna on the auxiliary door through the electronic switch circuit.
In one embodiment, the main door of the primary security door device establishes a radio frequency tag detection channel with the auxiliary door of the primary security door device or the auxiliary door of the secondary security door device through a channel switching circuit corresponding to the auxiliary door of the primary security door device or the auxiliary door of the secondary security door device.
Specifically, emergency exit equipment still includes human response module, human response module sets up in emergency exit equipment's main door and/or vice door for the response acquires human activity signal in order to drive emergency exit system work.
Specifically, a plurality of radio frequency antennas are arranged on a main door and/or an auxiliary door of the safety door device, and the radio frequency antennas on each door are respectively located at different heights.
The invention provides a detection method of a safety door system, which comprises the following steps:
the driving controller sends control signals to the read-write module of the first safety door device or the second safety door device at different time slots, and controls the channel switching circuit of the radio-frequency antenna on the auxiliary door corresponding to the first safety door device to be conducted, so that the radio-frequency antenna on the main door of the first safety door device or the second safety door device and the radio-frequency antenna on the auxiliary door of the first safety door device establish a radio-frequency label detection channel;
the driving controller sends radio frequency signals to the read-write module corresponding to the radio frequency label detection channel and controls the radio frequency antennas on the main door and the auxiliary door of the detection channel to transmit corresponding radio frequency signals;
receiving a response signal for responding to the radio frequency signal through the radio frequency antenna, and analyzing the response signal by a read-write module or a controller to obtain corresponding unique tag data;
and carrying out validity verification according to the tag data, and outputting alarm information when illegal tag data is verified.
Further, validity verification is performed according to the tag data, and when illegal tag data is verified, the step of outputting alarm information comprises the following steps: and the controller receives the tag data and the tag information prestored in the database to perform matching verification, and outputs alarm information when the relevant tag information cannot be matched.
The present invention has various advantages over the prior art, including but not limited to:
according to the safety door system, the auxiliary door of the safety door equipment can form a radio frequency tag detection channel with the main door of the safety door equipment where the auxiliary door is located through the channel switching circuit, and can also form a radio frequency tag detection channel with the main doors of other safety door equipment, so that the utilization rate of the safety door equipment is improved, and the arrangement cost of the safety door system is reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a safety door system according to an exemplary embodiment of the present invention.
Fig. 2 is a schematic circuit diagram of a safety door system according to an exemplary embodiment of the present invention.
Figure 3 is a circuit schematic of a safety door system according to one embodiment of the present invention.
Fig. 4 is a circuit schematic diagram of a switching control circuit according to an exemplary embodiment of the present invention.
Fig. 5 is a schematic flowchart of a security gate system detection method according to an exemplary embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The person skilled in the art will know this: although the various methods of the present invention are described based on the same concept so as to be common to each other, they can be independently performed unless otherwise specified. In the same way, for the embodiments disclosed in the present invention, the same inventive concept is proposed, and therefore, concepts expressed in the same and, although the concepts expressed in the same are different, those merely changed appropriately for convenience should be equally understood.
The embodiments of the present invention to be disclosed herein can be flexibly constructed by cross-linking related technical features of the embodiments unless the mutual exclusion relationship between the related technical features is indicated in the clear text, as long as the combination does not depart from the inventive spirit of the present invention and can meet the needs of the prior art or solve the deficiencies of the prior art in some aspects. Those skilled in the art will appreciate variations therefrom.
The invention provides a safety door system which is provided with a plurality of safety door devices, wherein a radio frequency tag detection channel can be established between a main door and an auxiliary door of each safety door device, a channel switching circuit is arranged corresponding to the auxiliary door, and the main doors of other safety door devices can establish a radio frequency tag detection channel with the auxiliary door arranged on another safety door through the channel switching circuit so as to improve the utilization rate of the safety door devices.
In an exemplary embodiment of the present invention, in conjunction with fig. 1, the security gate system 100 includes a plurality of security gate devices, which may be combined with each other to form a secure tunnel, and a controller 110.
The security gate device comprises a main gate 210, a sub-gate 220, a radio frequency antenna 211, a read-write module 240 and a channel switching circuit 250, wherein the main gate 210 and the sub-gate 220 are arranged oppositely, at least one radio frequency antenna 211 is arranged on the main gate 210, at least one radio frequency antenna 221 is arranged on the sub-gate 220, and the radio frequency antenna 211 on the main gate 210 and the radio frequency antenna 221 on the sub-gate 220 transmit radio frequency signals oppositely under the control of the read-write module 240 so as to establish a radio frequency label detection channel.
The read/write module 240 is electrically connected to the rf antenna 211 disposed on the main door 210. The channel switching circuit 250 is electrically connected to the rf antenna 221 of the sub-gate 220, the read/write module 240 is further electrically connected to the channel switching circuit 250, and the read/write module 240 is further electrically connected to the controller 110.
The read-write module 240 controls the rf antenna 211 on the main door 210 to transmit rf signals to the direction of the auxiliary door 220, and at the same time, the read-write module 240 controls the rf antenna 221 on the auxiliary door 220 to transmit rf signals to the direction of the main door 210 through the channel switching circuit 250, so that the rf antenna 211 on the main door 210 and the rf antenna 221 on the auxiliary door 220 of the security gate device transmit rf signals relatively to each other, so as to establish the rf tag detection channel.
In an exemplary embodiment of the present invention, referring to fig. 2, the channel switching circuit 250 includes a plurality of switching control circuits 251, referring to fig. 4, the switching control circuit 251 includes an input terminal 2511 and a common terminal 2512, the plurality of switching control circuits 251 are connected to the respective common terminal 2512, such that the plurality of switching control circuits 251 are arranged in parallel, and the plurality of switching control circuits 251 are electrically connected to the rf antenna 221 on the sub-gate 220 after being connected to the common terminal 2512. The input end 2511 of the switching control circuit 251 is electrically connected to one read/write module 240, and the input end 2511 of each switching control circuit 251 is respectively connected to different read/write modules 240, that is, the switching control circuits 251 are respectively electrically connected to the read/write modules 240.
The switching control circuit 251 includes an electronic switch circuit 2513 and a first isolation circuit 2514, and the electronic switch circuit 2513 is arranged in parallel with the first isolation circuit 2514. The electronic switch circuit 2513 is controlled by the control signal output by the read/write module 240 to turn on or off. When the electronic switch circuit 2513 is turned on, the read-write module 240 may output a radio frequency signal to the radio frequency antenna 221 on the auxiliary door 220 of the security door device through the electronic switch circuit 2513; on the contrary, when the electronic switch circuit 2513 is turned off, the rf signal sent by the read/write module 240 cannot pass through the electronic switch circuit 2513. In one embodiment, the control signal is a high/low level signal to drive the electronic switch circuit 2513 on and off.
One end of the first isolation circuit 2514 is connected to the input end 2511 of the switching control circuit 251, and the other end is connected to the electronic switch circuit 2513, and the first isolation circuit 2514 can separate the control signal output from the read/write module 240 to the switching control circuit 251 from the radio frequency signal. The control signal output from the read/write module 240 to the switching control circuit 251 is output to the first isolation circuit 2514 at the input end 2511 of the switching control circuit 251, and then output to the electronic switch circuit 2513 through the first isolation circuit 2514, so that the electronic switch circuit 2513 is turned on, that is, the first isolation circuit 2514 is used for controlling the on and off of the electronic switch circuit 2513. When the electronic switch circuit 2513 is turned on, the rf signal output from the read/write module 240 to the switching control circuit 251 is directly output to the rf antenna 221 on the auxiliary door 220 of the security door device through the electronic switch circuit 2513, so that the rf antenna 221 transmits the rf signal to the outside.
Moreover, because the channel switching circuit 250 includes a plurality of switching control circuits 251 connected in parallel, the first isolating circuit 2514 can also perform reverse isolation on the control signals output by other read/write modules, so as to prevent the control signals from being output to other switching control circuits 251 in the same channel switching circuit 250 through the electronic switch circuit 2513, which causes the plurality of switching control circuits 251 to be all conducted, and thus the channel switching circuit 250 and the read/write module 240 cannot normally work.
In some embodiments, the switching control circuit 251 further includes a second isolation circuit 2515 connected in parallel to the first isolation circuit 2514 and the electronic switch circuit 2513, where one end of the second isolation circuit 2515 is connected to the electronic switch circuit 2513, and the other end of the second isolation circuit 2515 is connected to the common terminal 2511 of the switching control circuit 251. The second isolation circuit 2515 is used for supplying power to the rf antenna 221 so that the rf antenna 221 can operate normally. In addition, the second isolation circuit 2515 can also perform reverse isolation on the control signals output by other read/write modules.
In an exemplary embodiment of the present invention, referring to fig. 1 and fig. 2, the security gate system 100 includes a plurality of security gate devices, each security gate device is provided with one read/write module 240, and the plurality of switching control circuits 251 of the channel switching circuit 250 are electrically connected to the read/write modules 240 provided in the plurality of security gate devices, respectively.
The controller 110 controls the read-write module 240 corresponding to each security door device, and the controller 110 controls the read-write module 240 corresponding to each security door device at different time slots in a time division multiplexing manner, so that the read-write module 240 is conducted with the connected switching control circuit 251, and thus the read-write module 240 of any security door device can be electrically connected with the rf antenna 221 of the sub-door 220 corresponding to the switching control circuit 251 through the connected switching control circuit 251, and the read-write module 240 outputs an rf signal to the rf antenna 221 corresponding to the switching control circuit 251 through the switching control circuit 251, so that the rf antenna 211 transmits an rf signal to the outside. Therefore, the rf antenna 221 on the sub-door 220 and the rf antenna 211 on the main door 210 of the multiple security gate devices can establish an rf tag detection channel through the channel switching circuit 250.
In one embodiment, the emergency exit system 100 establishes the radio frequency tag detection channel between the auxiliary door 220 of the emergency exit device and the main doors 210 of the multiple emergency exit devices through the channel switching circuit 250, so that the radio frequency tag detection channels established between the auxiliary door 220 and different main doors 210 can respectively operate at different frequency points in different time slots, so as to solve the problem of frequency offset of the radio frequency tag.
For convenience of describing a process of establishing a radio frequency tag detection channel between the radio frequency antenna 221 on the auxiliary door 220 and the radio frequency antenna 211 on the main door 210 of the multiple security door devices through the channel switching circuit 250, it is assumed that the multiple security door devices include a first security door device and a second security door device, and the auxiliary door 320 of the first security door device is disposed between the main door 310 of the first security door device and the main door 410 of the second security door device. The channel switching circuit 350 (the channel switching circuit 350 is referred to as a first channel switching circuit 350) corresponding to the auxiliary door 320 of the first security door device includes a first switching control circuit 3511 and a second switching control circuit 3512 which are connected in parallel, an input end 2511 of the first switching control circuit 3511 is electrically connected with a read-write module 340 (the read-write module 340 is referred to as a first read-write module 340) of the first security door device, an input end 2511 of the second switching control circuit 3512 is electrically connected with a read-write module 440 (the read-write module 440 is referred to as a second read-write module 440) of the second security door device, a common end 2512 of the first switching control circuit 3511 is electrically connected with a common end 2512 of the second switching control circuit 3512, and the two common ends 2512 are electrically connected with the rf antenna 321 on the auxiliary door 320 of the first security door device.
The first read-write module 340 and the second read-write module 440 are electrically connected to the controller 110, and the controller 110 outputs control signals to the first read-write module 340 or the second read-write module 440 at different time slots in a time division multiplexing manner, so that the rf antenna 311 on the main door 310 of the first security gate device and the rf antenna 321 on the auxiliary door 320 of the first security gate device establish an rf tag detection channel, or the rf antenna 411 on the main door 410 of the second security gate device and the rf antenna 321 on the auxiliary door 320 of the first security gate device establish an rf tag detection channel.
Specifically, when the controller 110 outputs a control signal to the first read/write module 340 in the first time slot, after the first read/write module 340 receives the control signal, the control signal is output to the first switching control circuit 3511, so that the first channel switching circuit 350 only conducts the first switching control circuit 3511, the rest of the switching control circuits 351 of the first channel switching circuit 350 do not conduct, and the rest of the switching control circuits 351 reversely isolate the control signal input to the channel switching circuit 250 through the first switching control circuit 3511 by the own isolation circuit; then, the first read-write module 340 outputs a radio frequency signal to the radio frequency antenna 321 on the auxiliary door 320 of the first security door device through the first switching control circuit 3511, so that the radio frequency antenna 321 on the auxiliary door 320 of the first security door device transmits a radio frequency signal to the outside; meanwhile, in the first time slot, the first read-write module 340 further outputs a radio frequency signal to the radio frequency antenna 311 on the main door 310 of the first security door device, so that the radio frequency antenna 311 on the main door 310 of the first security door device transmits a radio frequency signal to the outside; therefore, the rf antenna 311 on the main door 310 of the first security door device and the rf antenna 321 on the auxiliary door 320 of the first security door device both transmit rf signals to the outside, so that the rf antenna 311 on the main door 310 of the first security door device and the rf antenna 321 on the auxiliary door 320 of the first security door device establish an rf tag detection channel.
When the controller 110 outputs a control signal to the second read/write module 440 in the second time slot, after the second read/write module 440 receives the control signal, the control signal is output to the second switching control circuit 3512, so that the first channel switching circuit 350 only conducts the second switching control circuit 3512, the rest of the switching control circuits 351 of the first channel switching circuit 350 do not conduct, and the rest of the switching control circuits 351 reversely isolate the control signal input to the channel switching circuit 250 through the second switching control circuit 3511 by the own isolation circuit; then, the second read/write module 440 outputs a radio frequency signal to the radio frequency antenna 321 on the auxiliary door 320 of the first security gate device through the second switching control circuit 3512, so that the radio frequency antenna 321 on the auxiliary door 320 of the first security gate device transmits a radio frequency signal to the outside; meanwhile, in a second time slot, the second read/write module 440 further outputs a radio frequency signal to the radio frequency antenna 411 on the main door 410 of the secondary security gate device, so that the radio frequency antenna 411 on the main door 410 of the secondary security gate device transmits a radio frequency signal to the outside; therefore, the rf antenna 411 on the main door 410 of the secondary security door device and the rf antenna 321 on the secondary door 320 of the primary security door device both transmit rf signals to the outside, so that the rf antenna 411 on the main door 410 of the secondary security door device and the rf antenna 321 on the secondary door 320 of the primary security door device establish an rf tag detection channel.
Therefore, under the control of the controller 110, the radio frequency antenna 321 on the auxiliary door 320 of the first security gate device respectively establishes a radio frequency tag detection channel with the radio frequency antenna 311 on the main door 310 of the first security gate device or the radio frequency antenna 411 on the main door 410 of the second security gate device at different time slots, so that the utilization rate of the first security gate device is improved.
In one embodiment, the primary door 210 of the security gate device may also establish a radio frequency tag detection channel between the secondary door 220 of the security gate device in which it is located or the secondary door 200 of another security gate device. For example, referring to fig. 1, the primary door 410 of the secondary security door device establishes a radio frequency tag detection channel between the secondary door 320 of the primary security door device and the secondary door 420 of the secondary security door device at different time slots, respectively.
Specifically, in the first time slot, the second read/write module 440 of the secondary security door device controls the switching control circuit 251 electrically connected to the secondary door 320 of the primary security door device to be turned on, and under the control of the second read/write module 440, the rf antennas on the primary door 410 of the secondary security door device and the secondary door 320 of the primary security door device transmit rf signals to each other, so that an rf tag detection channel is established between the primary door 410 of the secondary security door device and the secondary door 320 of the primary security door device.
In the second time slot, the second read/write module 440 of the secondary security gate device controls the switching control circuit 251 electrically connected to the secondary door 420 of the secondary security gate device to be turned on, and under the control of the second read/write module 440, the rf antennas on the primary door 410 of the secondary security gate device and the secondary door 420 of the secondary security gate device transmit rf signals to each other, so that an rf tag detection channel is established between the primary door 410 of the secondary security gate device and the secondary door 420 of the secondary security gate device.
In one embodiment, the primary door 310 and the secondary door 320 of the primary security door apparatus and the primary door 410 and the secondary door 420 of the secondary security door apparatus are disposed along the same axis, and the primary door 310 and the secondary door 320 of the primary security door apparatus and the primary door 410 and the secondary door 420 of the secondary security door apparatus are sequentially disposed.
In an exemplary embodiment of the present invention, a radio frequency tag detection channel is established between the main door 210 of the security gate device and the auxiliary door 220 of the security gate device or between the main door 210 and the auxiliary door 220 of another security gate device, a radio frequency signal is externally transmitted by the radio frequency antennas on the main door 210 and the auxiliary door 220 forming the radio frequency tag detection channel, when a person or object carrying a radio frequency tag passes through the radio frequency tag detection channel, the radio frequency tag on the person or object returns a corresponding response signal to the radio frequency antenna in response to the radio frequency signal, the radio frequency antenna outputs the corresponding response signal to the corresponding read-write module or controller 110, the read-write module or controller 110 parses corresponding tag data from the response signal, and queries whether the radio frequency tag corresponding to the tag data has an authority to pass through the radio frequency tag detection channel from the database, if the radio frequency tag has the authority, the read-write signal stores pass data of the tag data in the database, and if the radio frequency tag does not have the authority, the controller 110 or the read-write module drives the alarm device to alarm, so as to represent that the radio frequency tag corresponding to have no pass through radio frequency tag, that the person or object carrying the radio frequency tag does not have the pass through radio frequency tag.
In one embodiment, referring to fig. 3, the controller 110 is one of a plurality of read/write modules 240 corresponding to a plurality of security door devices in the security door system 100, and the read/write module 240 serving as the controller 110 is referred to as a read/write control module 500. The read-write control module 500 is electrically connected to the read-write modules 240 corresponding to other security door devices in the security door system 100, so that the read-write control module 500 outputs a control instruction to each read-write module 240 in the security door system 100 to control the switching control circuit 251 or the radio frequency signal corresponding to each of the plurality of read-write modules, and the read-write control module 500 also outputs a corresponding control signal or radio frequency signal to the corresponding switching control circuit 251, and for the specific way that the read-write control module 500 controls each security door device in the security door system 100, please refer to the above description about the controller 110, which is for brevity and will not be described again. For example, the first read/write module 340 is used as the read/write control module 500.
In one embodiment, a plurality of rf antennas are disposed on the main door 210 and the sub-door 220 of the security gate device, and the plurality of rf antennas disposed on the main door 210 or the sub-door 220 are disposed in parallel, and the plurality of rf antennas are sequentially disposed along the height or width direction of the main door 210 or the sub-door 220, so that the rf antennas are uniformly distributed on the main door 210 or the sub-door 220, so that the plurality of rf antennas disposed on the main door 210 or the sub-door 220 can uniformly cover rf signals to the outside.
In some embodiments, the security gate device further includes a human body sensing module (not shown), which is disposed in the main door 210 and/or the auxiliary door 220 of the security gate device, and is configured to sense whether a person passes through or approaches the main door 210 or the auxiliary door 220 between the main door 210 and the auxiliary door 220, when the human body sensing module detects that a person passes through or approaches the main door 210 or the auxiliary door 220 between the main door 210 and the auxiliary door 220 of the security gate device, the human body sensing module obtains a human body activity signal, the human body sensing module outputs the human body activity signal to the read-write module 240 of the security gate device, the read-write module 240 outputs the received human body activity signal to the controller 110, and the controller 110 drives the security gate system 100 to operate after receiving the human body activity signal.
The invention also provides a detection method of the safety door system, which is characterized in that a radio frequency label detection channel is established between the main door of the safety door device and the auxiliary door of the safety door device or the auxiliary doors of other safety door devices to detect whether the radio frequency label passing through the radio frequency label detection has the passing permission or not. Specifically, in conjunction with fig. 5, the method includes the following specific steps:
step S11, the driving controller sends control signals to the read-write module of the first safety door device or the second safety door device at different time slots, and controls the channel switching circuit of the radio frequency antenna on the auxiliary door corresponding to the first safety door device to be switched on, so that the radio frequency antenna on the main door of the first safety door device or the second safety door device and the radio frequency antenna on the auxiliary door of the first safety door device establish a radio frequency tag detection channel:
the controller sends control signals to the read-write module of the first safety door device or the read-write module of the second safety door device respectively at different time slots, so that the read-write module of the first safety door device or the read-write module of the second safety door device is conducted to a corresponding switching control circuit in a channel switching circuit corresponding to a secondary door of the first safety door device, and a radio frequency tag detection channel is established between a radio frequency antenna on a main door of the first safety door device or a radio frequency antenna on a main door of the second safety door device and a radio frequency antenna on the secondary door of the first safety door device. For the above, please refer to the specific process of establishing the rf tag detection channel, which is not repeated herein for brevity.
Step S12, the driving controller sends radio frequency signals to the read-write module corresponding to the radio frequency label detection channel, and controls the radio frequency antennas on the main door and the auxiliary door of the detection channel to transmit corresponding radio frequency signals:
for convenience of description, the step S12 will be described by taking as an example that the controller controls the rf antenna on the primary door of the secondary security gate device and the rf antenna on the secondary door of the primary security gate device to establish the rf tag detection channel in the first time slot.
After a radio frequency tag detection channel is established, the controller sends a radio frequency signal to a read-write module of the second safety door device, and after the read-write module receives the radio frequency signal, the radio frequency signal is sent to a radio frequency antenna on the auxiliary door of the first safety door device through a corresponding switching control circuit in a channel switching circuit corresponding to the auxiliary door of the first safety door device, so that the radio frequency antenna on the auxiliary door of the first safety door device externally sends the radio frequency signal; meanwhile, the read-write module of the secondary safety door device also sends a radio-frequency signal to a radio-frequency antenna on the main door of the secondary safety door device, so that the radio-frequency antenna on the main door of the secondary safety door device also sends a signal to the outside, and the radio-frequency tag detection channel is covered by the radio-frequency signals sent by the radio-frequency antennas on the corresponding main door and the corresponding auxiliary door, so that the radio-frequency tag passing through the radio-frequency tag detection channel can be detected conveniently.
Similarly, when in the second time slot, after the controller controls the rf antenna on the main door of the first security door device and the rf antenna on the auxiliary door of the first security door device to establish the rf tag detection channel, the rf signal coverage in the rf tag detection channel is also the same as the signal coverage of the rf tag detection channel established by the rf antenna on the main door of the second security door device and the rf antenna on the auxiliary door of the first security door device, which is not described herein again.
Step S13, receiving a response signal for responding to the radio frequency signal through the radio frequency antenna, analyzing the response signal by a read-write module or a controller, and acquiring corresponding unique tag data:
and after the radio frequency tag passing through the radio frequency tag detection channel receives the radio frequency signal sent by the radio frequency antenna, the radio frequency tag is excited to feed back a response signal to the frequency modulation antenna. After the radio frequency antenna on the main door or the auxiliary door corresponding to the radio frequency tag detection channel receives the corresponding response signal, the response data is output to the read-write module or the controller, so that the read-write module or the controller can analyze the response signal to obtain the unique tag data.
Step S14, carrying out validity verification according to the label data, and outputting alarm information when illegal label data is verified:
the controller carries out matching verification on the received label data and label information prestored in a database of the controller, and outputs alarm information when the relevant label information cannot be matched.
In one embodiment, the controller has a database that prestores tag data for radio frequency tags applied to the security door system. The tag data includes information that has an associated item or person in addition to information for read-write signal verification. For example, when the tag data is associated with a commodity, the tag data also includes information such as the name, price, and date of production of the commodity; when the tag information is related to a person, the tag data also contains information such as the performance, age, sex, job title, authority, and photograph of the person.
In one embodiment, the controller performs matching verification on the received tag data and tag information prestored in the database, and outputs alarm information when the relevant tag information cannot be matched. The embodiment can be applied to personnel safety detection, such as library entrance identity verification, exhibition hall entrance identity verification, conference entrance identity verification, company entrance identity verification and other environments, so as to verify whether the tag data fed back by the radio frequency tag carried or worn by a person passing through the radio frequency tag detection channel is prestored in the database, and when the tag data is prestored in the database, the tag data has the passing right; when the label data is not prestored in the database, the label data represents that the label data does not have the passing authority.
In another embodiment, the controller detects whether the tag data received by the controller contains a specific identifier, and outputs the alarm information when the tag data contains/does not contain the specific identifier. The embodiment can be applied to the detection of whether the commodities are purchased at the exit of the supermarket, and after the user finishes payment of the commodities purchased at the supermarket, the vending equipment can write or eliminate the specific identification on the radio frequency tag of the commodities so as to indicate that the commodities are purchased. When a customer carries a commodity to pass through the radio frequency tag detection channels, whether the tag data contains the specific identification or not is detected, and if the tag data contains or does not contain the specific identification, the fact that the commodity is unpaid is indicated, and alarm information is output.
In summary, according to the emergency exit system of the present invention, the rf antenna on the main door of one of the emergency exit devices establishes the rf tag detection channel with the rf antenna on the auxiliary door of the emergency exit device where the main door is located or the auxiliary door of another emergency exit device, so that the utilization rate of the auxiliary door of the emergency exit device is increased, and the arrangement cost of the emergency exit system is reduced.
Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (10)
1. The safety door system comprises a plurality of safety door devices, wherein each safety door device comprises a main door and an auxiliary door establishing a radio frequency tag detection channel with the main door.
2. The security door system according to claim 1,
the safety door system further comprises a controller, the safety door equipment further comprises a reading and writing module and radio frequency antennas arranged on the main door and the auxiliary door, and the channel switching circuit is electrically connected with the radio frequency antennas on the auxiliary door;
and the controller controls the channel switching circuit of the first safety door device through the read-write module of the first safety door device or the second safety door device at different time slots in a time division multiplexing mode, so that the radio frequency antenna on the main door of the first safety door device or the second safety door device and the radio frequency antenna on the auxiliary door of the first safety door device establish the radio frequency tag detection channel.
3. The security gate system of claim 2, wherein the controller is one of the read-write modules of the plurality of security gate devices.
4. The safety door system according to claim 2, wherein the channel switching circuit includes a plurality of switching control circuits electrically connected to the plurality of read/write modules, respectively, and the plurality of switching control circuits are electrically connected in parallel to the rf antenna on the sub-door.
5. The safety door system of claim 4, wherein the switching control circuit comprises an electronic switch circuit and a first isolation circuit connected in parallel with the electronic switch circuit, the first isolation circuit is turned on or off by a control signal output by the controller, and the read/write module outputs a radio frequency signal to the radio frequency antenna on the auxiliary door through the electronic switch circuit.
6. The security gate system of claim 1, wherein the primary gate of the primary security gate device establishes a radio frequency tag detection channel with the secondary gate of the primary security gate device or the secondary gate of the secondary security gate device through a channel switching circuit corresponding to the secondary gate of the primary security gate device or the secondary gate of the secondary security gate device.
7. The safety door system according to claim 1, wherein the safety door device further comprises a human body sensing module, the human body sensing module is arranged in the main door and/or the auxiliary door of the safety door device and is used for sensing and acquiring a human body activity signal to drive the safety door system to work.
8. The safety door system according to claim 2, wherein the main door and/or the sub-door of the safety door device is provided with a plurality of radio frequency antennas, and the radio frequency antennas on each door are respectively positioned at different heights.
9. A safety door system detection method is characterized by comprising the following steps:
the driving controller sends control signals to the read-write module of the first safety door device or the second safety door device at different time slots, and controls the channel switching circuit of the radio-frequency antenna on the auxiliary door corresponding to the first safety door device to be conducted, so that the radio-frequency antenna on the main door of the first safety door device or the second safety door device and the radio-frequency antenna on the auxiliary door of the first safety door device establish a radio-frequency label detection channel;
the driving controller sends radio frequency signals to the read-write module corresponding to the radio frequency label detection channel and controls the radio frequency antennas on the main door and the auxiliary door of the detection channel to transmit corresponding radio frequency signals;
receiving a response signal for responding to the radio frequency signal through the radio frequency antenna, and analyzing the response signal by a read-write module or a controller to obtain corresponding unique tag data;
and carrying out validity verification according to the tag data, and outputting alarm information when illegal tag data is verified.
10. The method of claim 9, wherein validity verification is performed based on the tag data, and when illegal tag data is verified, the step of outputting alarm information includes: and the controller receives the tag data and the tag information prestored in the database to carry out matching verification, and outputs alarm information when the related tag information cannot be matched.
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| CN202211624065.4A CN115775420A (en) | 2022-12-16 | 2022-12-16 | Security door system and detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211624065.4A CN115775420A (en) | 2022-12-16 | 2022-12-16 | Security door system and detection method thereof |
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