CN116778618A - Ultrahigh frequency intelligent safety access control system and access control - Google Patents
Ultrahigh frequency intelligent safety access control system and access control Download PDFInfo
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- CN116778618A CN116778618A CN202310489226.1A CN202310489226A CN116778618A CN 116778618 A CN116778618 A CN 116778618A CN 202310489226 A CN202310489226 A CN 202310489226A CN 116778618 A CN116778618 A CN 116778618A
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- 239000013078 crystal Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 abstract description 14
- 238000001514 detection method Methods 0.000 description 29
- 238000005516 engineering process Methods 0.000 description 21
- 238000009434 installation Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 9
- 230000008447 perception Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000007306 turnover Effects 0.000 description 4
- 241000322338 Loeseliastrum Species 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000007619 statistical method Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/04—Systems determining presence of a target
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/886—Radar or analogous systems specially adapted for specific applications for alarm systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/27—Individual registration on entry or exit involving the use of a pass with central registration
Abstract
The invention belongs to the technical field of radar identification and tracking, and particularly relates to an intelligent safety access control system and an access control method for ultra-high frequency radar identification. This scheme provides an ultra-high frequency intelligent security access control system, its characterized in that includes: the access control device comprises an access control device, a router and a background server, wherein the access control device comprises a receiving antenna, a transmitting antenna and a radar module; one end of the router is connected with the radar module in a wired or wireless way, and the other end of the router is connected with the background server in a wired or wireless way; the radar module generates state information when the moving body passes through the entrance guard through the ultra-high frequency radar signal, and sends the state information to the background server through the router.
Description
Technical Field
The invention belongs to the technical field of radar identification and tracking, and particularly relates to an intelligent safety access control system and an access control method for ultra-high frequency radar identification.
Background
In the access entrance guard system in the prior art, the technology of combining infrared detection, ultrasonic detection or camera detection is generally adopted, so that the functions of tag identification of articles held by batch users and anti-theft alarm of the articles are achieved for access management in the scenes of libraries, archives, storage, stores and the like. However, these detection means for entrance/exit door control systems have limitations.
For example, in a system for identifying and managing access control by adopting a camera technology, a human body has a complex detection algorithm and is not easy to realize, if the condition of insufficient light is met, the illumination effect is poor, the camera is difficult to discover and track the human body, the anti-interference capability is weak, and meanwhile, the camera detection also has the risk of privacy leakage. For example, in a system for identifying and managing entrance guard by infrared and ultrasonic technology, whether the entrance guard is an object or a human body is not well distinguished, the condition that the reading of the object label fails often due to the identification error is caused, and the infrared equipment and the ultrasonic equipment are large and inconvenient to install.
Disclosure of Invention
In order to solve the technical problems, in one aspect, the present invention provides an ultra-high frequency intelligent security access control system, comprising: the access control device comprises an access control device, a router and a background server, wherein the access control device comprises a receiving antenna, a transmitting antenna and a radar module; one end of the router is connected with the radar module in a wired or wireless way, and the other end of the router is connected with the background server in a wired or wireless way;
and the radar module generates state information when the moving body passes through the entrance guard through the ultra-high frequency radar signal, and sends the state information to the background server through the router.
Specifically, the radar module comprises a crystal oscillator, a memory and a radar chip, wherein the radar chip is respectively connected with the crystal oscillator and the memory, judging data are pre-stored in the memory, the judging data judge the existence state and direction of a moving body when the moving body passes through an entrance guard, and the radar chip generates state information by reading the judging data and sends the state information to the background server.
Preferably, the system further comprises a radio frequency identification module, wherein one end of the radio frequency identification module is connected with the radar module, and the other end of the radio frequency identification module is connected with the router in a wired or wireless mode; when the radar module detects that the moving body passes through the entrance guard, the radar module triggers the radio frequency identification module to read tag information carried by the moving body, and sends the tag information to the background server through the router.
Specifically, the state information comprises first state information and second state information, the first state information is state information of existence of a human body, and the second state information is direction information of entry and exit of the human body.
Specifically, the number of the access control devices is L, wherein L is a positive integer greater than or equal to 1, and when L is greater than 1, the L access control devices are connected through wireless or wired.
Specifically, the number of the receiving antennas is N, wherein N is a positive integer not less than 1; the number of the transmitting antennas is M, wherein M is a positive integer not less than 1.
Specifically, the receiving antenna, the transmitting antenna, and the radar module are respectively integrated on a printed circuit board.
Specifically, the receiving antenna and the transmitting antenna are integrated in the radar chip, and the crystal oscillator, the radar chip and the memory are respectively integrated on a printed circuit board.
In one aspect, the invention provides an ultra-high frequency intelligent security access control, which comprises an access control body and the access control system, wherein the receiving antenna, the transmitting antenna and the radar module are arranged on the access control body, or the receiving antenna, the transmitting antenna, the radar module and the radio frequency identification module are arranged on the access control body.
Specifically, the receiving antenna, the transmitting antenna and the radar module are mounted on the entrance guard body in a ceiling manner, or the entrance guard body is mounted on the side face in an inclined manner, or the entrance guard body is mounted on the ground.
Compared with the technology of using infrared equipment, ultrasonic equipment or camera equipment to identify and manage the human body and articles of the entrance and exit in the prior art, the radar technology has higher-precision identification capability and stronger anti-interference capability, can work for 24 hours in all weather, ensures that the human body existence and direction judgment and detection are more accurate when the moving body enters and exits, and has more advantages compared with the infrared equipment, the ultrasonic equipment or the camera equipment. In addition, the radar equipment has low transmitting power, no harm to human bodies and environments, no risk of invading privacy, small size and convenient installation, and is more suitable in terms of cost.
Drawings
FIG. 1 is a schematic diagram of an ultra-high frequency intelligent security access control system;
FIG. 2 is a schematic diagram of a radar module product of the ultra-high frequency intelligent security access control equipment;
FIG. 3 is a schematic diagram of an ultra-high frequency intelligent security access control device;
FIG. 4 is a diagram showing a connection of a radar module of the ultra-high frequency intelligent security access control equipment;
fig. 5 is a connection diagram of an ultra-high frequency intelligent security access control system.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.
It should be understood that, in various embodiments of the present invention, the sequence number of each process does not mean that the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
It should be understood that in the present invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present invention, "plurality" means two or more. "and/or" is merely an association relationship describing an association object, and means that three relationships may exist, for example, and/or B may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising A, B and C", "comprising A, B, C" means that all three of A, B, C comprise, "comprising A, B or C" means that one of the three comprises A, B, C, and "comprising A, B and/or C" means that any 1 or any 2 or 3 of the three comprises A, B, C.
It should be understood that in the present invention, "B corresponding to a", "a corresponding to B", or "B corresponding to a" means that B is associated with a, from which B can be determined. Determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information. The matching of A and B is that the similarity of A and B is larger than or equal to a preset threshold value.
As used herein, "if" may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to detection" depending on the context.
The technical scheme of the invention is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
Example 1
On the one hand, as shown in fig. 1, this embodiment provides an ultra-high frequency intelligent security access control system, including: the access control device comprises an access control device, a router and a background server, wherein the access control device comprises a receiving antenna, a transmitting antenna and a radar module; one end of the router is connected with the radar module in a wired or wireless way, and the other end of the router is connected with the background server in a wired or wireless way;
the radar module generates state information when the moving body passes through the entrance guard through the ultra-high frequency radar signal, and sends the state information to the background server through the router.
It should be noted that, the access control device in the ultra-high frequency intelligent security access control system performs motion recognition, judgment of the direction of entering and exiting the door, and the like on a moving body, i.e. a moving body or object, through a radar technology. The ultra-high frequency intelligent security access control equipment adopts the technology of millimeter wave radar, and realizes human motion perception and human motion direction perception by the radar technology, thereby realizing the wireless perception of the personnel state in a specific place. The moving body comprises human body movement, and the purpose of the moving body is to realize the perception of the movement and direction of the human body entering and exiting the entrance guard through the radar technology, so that state information is generated and sent to the background server through the router. The status information here includes, but is not limited to: the presence information of the human body passing through the entrance guard, the direction information of the human body entering or exiting the entrance guard, the information of the human body staying at the entrance guard, and the like.
The radar module is used for non-contact detection of the existence state of the moving body when passing through the entrance guard through the ultra-high frequency radar signal. When a moving body such as a human body passes through the entrance guard, the radar module can detect the existence of the human body in a non-contact manner through the ultra-high frequency radar signals, the specific method is that the ultra-high frequency radar signals are received and transmitted through a plurality of combined radar transmitting antennas and receiving antennas, a software strategy of judging logic for judging whether the human body exists at the entrance guard is prestored in a memory, the software strategy for judging whether the human body exists can avoid environmental noise or interference signals to accurately judge whether the human body exists or not pass through the entrance guard, the judging logic software strategy for judging the entering and exiting directions of the human body when the human body passes through the entrance guard is prestored in the memory, and the radar chip can accurately sense the movement and directions of the human body when the human body passes through the entrance guard by reading the software strategy for judging the existence of the human body and the software strategy for judging the entering and exiting directions of the human body, so as to generate state information, and the state information is sent to a background server through a router. The background server analyzes and detects the human body movement and direction of the access control part according to the received state information, and the human body detection of the security access control system is realized by using the high-frequency radar signal, so that the purposes of interference resistance and high accuracy can be achieved.
For the setting of transmitting antenna and receiving antenna, on the one hand, in order to detect the position of human body and follow-up detection human body business turn over door's direction through the radar better, the receiving antenna and the transmitting antenna of hyperfrequency intelligent security entrance guard equipment can be a plurality of, also can be a plurality of, has a plurality of receiving antennas and transmitting antenna under the most preferred condition, because multiunit receiving antenna and transmitting antenna are favorable to receiving more accurate human body position information, and the precision is higher. The combination of the antennas may be one transmitting antenna and two receiving antennas, two transmitting antennas and two receiving antennas, three transmitting antennas and four receiving antennas, and of course, the number of transmitting antennas and receiving antennas may be the same, but the optimal configuration is that the number of receiving antennas is larger than the number of transmitting antennas. On the other hand, the radar module is respectively connected with the receiving antenna and the transmitting antenna, that is to say, the receiving antenna and the transmitting antenna can be welded on the PCB together with the crystal oscillator, the radar chip and the memory, and the radar chip can integrate the receiving antenna and the transmitting antenna, that is to say, the transmitting antenna and the receiving antenna are integrated in the radar chip in advance and are not welded on the PCB, and the antenna arrangement of the latter mode has the advantages that under the configuration of a plurality of groups of receiving antennas and transmitting antennas, the integration level is higher, the product size of the ultra-high frequency intelligent entrance guard equipment can be reduced as much as possible, and the installation and the use are facilitated.
Specifically, as shown in fig. 4, the radar module includes a crystal oscillator, a memory, and a radar chip, the radar chip is respectively connected to the crystal oscillator and the memory, the memory is pre-stored with judgment data, the judgment data judges the existence state and direction of the moving body when passing through the door access, and the radar chip generates state information by reading the judgment data and sends the state information to the background server.
It should be noted that, the ultra-high frequency intelligent security access control device mainly comprises a receiving antenna, a transmitting antenna and a radar module, wherein the radar module comprises a crystal oscillator, a memory and a radar chip, the radar chip uses 24GHZ/60GHZ/77GHZ millimeter wave radar chips, such as S32R41, ADT6101-60GHZ of shore access technology or CAL77S322-AC-77GHZ of the calico, and the radar chip can also be other radar chip types of other manufacturers, and the description is not excessively limited and tired herein. The ultrahigh frequency radar signal is received and transmitted through a plurality of combined radar transmitting antennas and receiving antennas, and judging data are prestored in a memory in a radar module and used for reading a radar chip, and the specific method is as follows: on one hand, the memory is pre-stored with a software strategy of a judging logic for judging whether a human body exists at an entrance guard, the software strategy for judging whether the human body exists can avoid environmental noise or interference signals to accurately judge whether the human body exists or not through the entrance guard, on the other hand, the memory is pre-stored with a judging logic software strategy for judging the in-out direction of the human body when the human body passes through the entrance guard, and the radar chip can accurately sense the movement and the direction of the human body when the human body passes through the entrance guard by reading the software strategy for judging the existence of the human body and the software strategy for judging the in-out direction of the human body, so that state information is generated and sent to a background server through a router.
Preferably, as shown in fig. 5, the wireless router further comprises a radio frequency identification module, wherein one end of the radio frequency identification module is connected with the radar module, and the other end of the radio frequency identification module is connected with the router in a wired or wireless manner; when the radar module detects that the moving body passes through the entrance guard, the radar module triggers the radio frequency identification module to read tag information carried by the moving body, and the tag information is sent to the background server through the router.
It should be noted that the security access control system further comprises a radio frequency identification module, and the radio frequency identification module can be a mainstream RFID device in the market and is used for reading information of electronic tags on articles carried by users, so that information of articles entering and exiting in places such as shops, libraries and warehouses can be monitored conveniently. The radar module and the radio frequency identification module are communicated through GPIO (general purpose input/output) or/and serial port connection, and the radar module and the radio frequency identification module are connected through a 12V direct current power supply and simultaneously supply power. The radio frequency identification module and the radar module can be integrated in one product, as shown in fig. 4, namely, a product diagram of the access control device integrated with the radio frequency identification module. The number of the antennas of the radio frequency identification module can be 1 or more, for example, 4 antennas are in the optimal state of fig. 5, the optimal selection of the number of the antennas is verified by a plurality of laboratory results of research personnel, and the optimal matching of the number of the antennas is not limited. When the radar module uses Lei Chaogao frequency radar signals, the radar chip receives and transmits the signals through a plurality of combined radar transmitting antennas and receiving antennas, and judges that a human body passes through the entrance guard through reading the software strategy in the memory for judging the existence of the human body, the entrance guard judges the entrance or exit direction of the human body, the safety entrance guard equipment triggers the radio frequency identification module to read and record the electronic tags on the articles carried by the human body, in addition, the radio frequency identification module can read the tag information of a plurality of articles at the same time, and meanwhile, the information about whether the articles leave a supermarket, whether the articles pay or not is accurately judged, and the like is uploaded to the background server.
Specifically, the state information includes first state information and second state information, the first state information is state information of existence of a human body, and the second state information is direction information of entry and exit of the human body.
It should be noted that, in this scheme, the memory will prestore and judge data for read for the radar chip, the specific implementation is: on one hand, the memory stores a software strategy of a judging logic for judging whether the human body exists in the entrance guard or not in advance, the software strategy for judging whether the human body exists or not can avoid environmental noise or interference signals to accurately judge whether the human body exists or not through the entrance guard, and on the other hand, the memory stores a judging logic software strategy for judging the entering and exiting directions of the human body when the human body passes through the entrance guard in advance. The software strategy of the judging logic for judging whether the human body exists in the entrance guard is prestored in the memory, so that the radar chip can judge the existence state of the human body according to the prestored logic after reading the software strategy and generate first state information; the logic software strategy for judging the entrance and exit directions of the human body when the human body passes through the entrance guard is prestored in the memory, so that the radar chip can judge the direction information of the human body entering and exiting the entrance guard according to the prestored logic after reading the information, and generate second state information. The radar module then uploads the first state information and/or the second state information to the background server by means of a wireless or wired connection.
After the radar chip detects the existence of a human body and the entrance guard direction information, the radio frequency identification module can be triggered to read the tag carried by the human body, and the read tag information can carry information such as the date, time, whether the commodity enters and exits the gate, the entrance or exit direction and the like, and is uploaded to a background server as tag information.
Specifically, the number of the access control devices is L, wherein L is a positive integer greater than or equal to 1, and when L is greater than 1, the L access control devices are connected through wireless or wired.
When a plurality of access control devices are arranged, the access control devices are wired or wireless to form a network, the access control devices are respectively arranged on the access control devices, and each access control device transmits data such as tag information read by each access control device, the state of entering and exiting the access control device of a human body and the like to the background server for statistical analysis and management, so that management personnel of the background server monitor the article entering and exiting and personnel entering and exiting conditions of each access control device.
Specifically, the number of the receiving antennas is N, wherein N is a positive integer not less than 1; the number of the transmitting antennas is M, wherein M is a positive integer not less than 1.
It should be noted that, for the setting of transmitting antenna and receiving antenna, in order to better detect the position of human body and follow-up detection human body business turn over door direction through the radar, the receiving antenna and the transmitting antenna of hyperfrequency intelligent security entrance guard equipment can be a plurality of, also can be a plurality of, has a plurality of receiving antennas and transmitting antennas under the optimal condition, because multiunit receiving antenna and transmitting antenna are favorable to receiving more accurate human body position information, and the precision is higher. The combination of the antennas may be a combination of one transmitting antenna and two receiving antennas (i.e., m=1, n=2), two transmitting antennas and two receiving antennas (i.e., m=2, n=2), three transmitting antennas and four receiving antennas (i.e., m=3, n=4), etc., and of course, the number of transmitting antennas and receiving antennas may be the same, but the optimal configuration is that the number of receiving antennas is greater than the number of transmitting antennas, so that the position of the human body and the direction of the entrance and exit of the human body can be detected precisely by the radar.
The product diagram of entrance guard's equipment is as shown in fig. 2, and entrance guard's equipment can have multiple mounting means, if entrance guard's equipment is inhaled the top and is installed on the entrance guard's body, entrance guard's equipment side slope is installed on the entrance guard's body, entrance guard's equipment installs subaerial at the entrance guard's body. The ceiling mounting mode can effectively realize radar detection in a large angle range, and the detection accuracy of human body entering and exiting the entrance guard is improved; the inclined installation mode can realize a radar detection function at a longer distance, so that the detection range of the entrance guard of a human body is wider; the ground installation mode can realize intelligent noninductive detection function. In addition, the access control equipment can be in various integrated modes, and one mode is that the access control equipment is respectively provided with a radar module and a radio frequency identification module and then is installed on the access control body; the other mode is that the radar module and the radio frequency identification module are integrated into access control equipment and are installed on the access control body.
Specifically, the receiving antenna, the transmitting antenna, and the radar module are respectively integrated on a printed circuit board.
Specifically, the receiving antenna and the transmitting antenna are integrated in the radar chip, and the crystal oscillator, the radar chip and the memory are respectively integrated on the printed circuit board.
It should be noted that, for the setting of transmitting antenna and receiving antenna, receiving antenna and transmitting antenna can be welded on PCB printed circuit board together with crystal oscillator, radar chip, memory, and another way makes radar chip just integrate receiving antenna and transmitting antenna before leaving factory, namely does transmitting antenna and receiving antenna in advance in radar chip, and not welds on the PCB, and the advantage of the setting of the antenna of the latter mode lies in, under the configuration that needs multiunit receiving antenna and transmitting antenna, and the integrated level is higher, can reduce the product size of hyperfrequency intelligent entrance guard equipment as far as possible, more is favorable to installation and use.
Compared with the technology of using infrared equipment, ultrasonic equipment or camera equipment to identify and manage the human body and articles of the entrance and exit in the prior art, the radar technology has higher-precision identification capability and stronger anti-interference capability, can work for 24 hours in all weather, ensures that the human body existence and direction judgment and detection are more accurate when the moving body enters and exits, and has more advantages compared with the infrared equipment, the ultrasonic equipment or the camera equipment. In addition, the radar equipment has low transmitting power, no harm to human bodies and environments, no risk of invading privacy, small size and convenient installation, and is more suitable in terms of cost.
Example two
On the one hand, this embodiment provides an ultra-high frequency intelligent security entrance guard, including the entrance guard body, still include as the access control system of embodiment one, receive antenna, transmitting antenna and radar module are installed on the entrance guard body, or receive antenna, transmitting antenna, radar module and radio frequency identification module are installed on the entrance guard body.
The entrance guard equipment is formed by a receiving antenna, a transmitting antenna and a radar module, and is arranged on an entrance guard body; the other is that the receiving antenna, the transmitting antenna and the radar module form access control equipment and the radio frequency identification module are respectively arranged on the access control body. The entrance guard equipment in the ultra-high frequency intelligent safety entrance guard system is used for carrying out motion recognition, door entering and exiting direction judgment and the like on a moving body, such as a human body, through a radar technology, wherein the moving body is the moving human body or an object. As shown in fig. 1, the ultra-high frequency intelligent security access control device adopts the technology of millimeter wave radar, and realizes human motion perception and human motion direction perception by the radar technology, thereby realizing wireless perception of the personnel state in a specific place. The moving body comprises human body movement, and the purpose of the moving body is to realize the perception of the movement and direction of the human body entering and exiting the entrance guard through the radar technology, so that state information is generated and sent to the background server through the router. The status information here includes, but is not limited to: the presence information of the human body passing through the entrance guard, the direction information of the human body entering or exiting the entrance guard, the information of the human body staying at the entrance guard, and the like.
The radar module is used for non-contact detection of the existence state of the moving body when passing through the entrance guard through the ultra-high frequency radar signal. When a moving body such as a human body passes through the entrance guard, the radar module can detect the existence of the human body in a non-contact manner through the ultra-high frequency radar signals, the specific method is that the ultra-high frequency radar signals are received and transmitted through a plurality of combined radar transmitting antennas and receiving antennas, a software strategy of judging logic for judging whether the human body exists at the entrance guard is prestored in a memory, the software strategy for judging whether the human body exists can avoid environmental noise or interference signals to accurately judge whether the human body exists or not pass through the entrance guard, the judging logic software strategy for judging the in-out direction when the human body passes through the entrance guard is prestored in the memory, and the radar chip can accurately sense the movement and the direction when the human body passes through the entrance guard by reading the software strategy for judging the existence of the human body and the software strategy for judging the in-out direction of the human body, so as to generate state information and send the state information to a background server through a router. The background server analyzes and detects the human body movement and direction of the access control part according to the received state information, and the human body detection of the security access control system is realized by using the high-frequency radar signal, so that the purposes of interference resistance and high accuracy can be achieved.
For the setting of transmitting antenna and receiving antenna, on the one hand, in order to detect the position of human body and follow-up detection human body business turn over door's direction through the radar better, the receiving antenna and the transmitting antenna of hyperfrequency intelligent security entrance guard equipment can be a plurality of, also can be a plurality of, has a plurality of receiving antennas and transmitting antenna under the most preferred condition, because multiunit receiving antenna and transmitting antenna are favorable to receiving more accurate human body position information, and the precision is higher. The combination of the antennas may be one transmitting antenna and two receiving antennas, two transmitting antennas and two receiving antennas, three transmitting antennas and four receiving antennas, and of course, the number of transmitting antennas and receiving antennas may be the same, but the optimal configuration is that the number of receiving antennas is larger than the number of transmitting antennas. On the other hand, the radar module is respectively connected with the receiving antenna and the transmitting antenna, that is to say, the receiving antenna and the transmitting antenna can be welded on the PCB together with the crystal oscillator, the radar chip and the memory, and the radar chip can integrate the receiving antenna and the transmitting antenna, that is to say, the transmitting antenna and the receiving antenna are integrated in the radar chip in advance and are not welded on the PCB, and the antenna arrangement of the latter mode has the advantages that under the configuration of a plurality of groups of receiving antennas and transmitting antennas, the integration level is higher, the product size of the ultra-high frequency intelligent entrance guard equipment can be reduced as much as possible, and the installation and the use are facilitated.
The radar module comprises a crystal oscillator, a memory and a radar chip, wherein the radar chip is respectively connected with the crystal oscillator and the memory, the memory is pre-stored with judging data, the judging data judges the existence state and direction of a moving body when the moving body passes through the entrance guard, and the radar chip generates state information by reading the judging data and sends the state information to the background server.
It should be noted that, the ultra-high frequency intelligent security access control device mainly comprises a receiving antenna, a transmitting antenna and a radar module, wherein the radar module comprises a crystal oscillator, a memory and a radar chip, the radar chip uses 24GHZ/60GHZ/77GHZ millimeter wave radar chips, such as S32R41, ADT6101-60GHZ of shore access technology or CAL77S322-AC-77GHZ of the calico, and the radar chip can also be other radar chip types of other manufacturers, and the description is not excessively limited and tired herein. The ultrahigh frequency radar signal is received and transmitted through a plurality of combined radar transmitting antennas and receiving antennas, and judging data are prestored in a memory in a radar module and used for reading a radar chip, and the specific method is as follows: on one hand, the memory is pre-stored with a software strategy of a judging logic for judging whether a human body exists at an entrance guard, the software strategy for judging whether the human body exists can avoid environmental noise or interference signals to accurately judge whether the human body exists or not through the entrance guard, on the other hand, the memory is pre-stored with a judging logic software strategy for judging the in-out direction of the human body when the human body passes through the entrance guard, and the radar chip can accurately sense the movement and the direction of the human body when the human body passes through the entrance guard by reading the software strategy for judging the existence of the human body and the software strategy for judging the in-out direction of the human body, so that state information is generated and sent to a background server through a router.
The safety access control system also comprises a radio frequency identification module, wherein one end of the radio frequency identification module is connected with the radar module, and the other end of the radio frequency identification module is connected with the router in a wired or wireless way; when the radar module detects that the moving body passes through the entrance guard, the radar module triggers the radio frequency identification module to read tag information carried by the moving body, and the tag information is sent to the background server through the router.
It should be noted that, as shown in fig. 2, the security access control system further includes a radio frequency identification module, where the radio frequency identification module may be an RFID device mainstream in the market, and is used to read information of an electronic tag on an article carried by a user, so as to monitor information of articles entering and exiting a warehouse in places such as a store, a library, and a warehouse. The radar module and the radio frequency identification module are communicated through GPIO (general purpose input/output) or/and serial port connection, and the radar module and the radio frequency identification module are connected through a 12V direct current power supply and simultaneously supply power. When the radar module uses Lei Chaogao frequency radar signals, the radar chip receives and transmits the signals through a plurality of combined radar transmitting antennas and receiving antennas, and judges that a human body passes through the entrance guard through reading the software strategy in the memory for judging the existence of the human body, the entrance guard judges the entrance or exit direction of the human body, the safety entrance guard equipment triggers the radio frequency identification module to read and record the electronic tags on the articles carried by the human body, in addition, the radio frequency identification module can read the tag information of a plurality of articles at the same time, and meanwhile, the information about whether the articles leave a supermarket, whether the articles pay or not is accurately judged, and the like is uploaded to the background server.
The radar chip can accurately sense the movement and direction of the human body when the human body passes through the entrance guard by reading a software strategy for judging the existence of the human body and a software strategy for judging the entrance and exit directions of the human body in the memory, generates state information, and sends the state information to the background server through the router. The state information comprises first state information and second state information, wherein the first state information is state information of human bodies, and the second state information is direction information of the human bodies entering and exiting the entrance guard.
It should be noted that, in this scheme, the memory will prestore and judge data for read for the radar chip, the specific implementation is: on one hand, the memory stores a software strategy of a judging logic for judging whether the human body exists in the entrance guard or not in advance, the software strategy for judging whether the human body exists or not can avoid environmental noise or interference signals to accurately judge whether the human body exists or not through the entrance guard, and on the other hand, the memory stores a judging logic software strategy for judging the entering and exiting directions of the human body when the human body passes through the entrance guard in advance. The software strategy of the judging logic for judging whether the human body exists in the entrance guard is prestored in the memory, so that the radar chip can judge the existence state of the human body according to the prestored logic after reading the software strategy and generate first state information; the logic software strategy for judging the entrance and exit directions of the human body when the human body passes through the entrance guard is prestored in the memory, so that the radar chip can judge the direction information of the human body entering and exiting the entrance guard according to the prestored logic after reading the information, and generate second state information. The radar module then uploads the first state information and/or the second state information to the background server by means of a wireless or wired connection.
After the radar chip detects the existence of a human body and the entrance guard direction information, the radio frequency identification module can be triggered to read the tag carried by the human body, and the read tag information can carry information such as the date, time, whether the commodity enters and exits the gate, the entrance or exit direction and the like, and is uploaded to a background server as tag information.
The entrance guard equipment is L, and wherein L is greater than or equal to 1's positive integer, when L is greater than 1, connects through wireless or wired between the L entrance guard equipment. When the entrance guard equipment is a plurality of entrance guard equipment, the entrance guard equipment is wired or wireless to be networked, the entrance guard equipment is respectively arranged on the entrance guard equipment, and each entrance guard equipment transmits the data such as the tag information read by each entrance guard equipment, the state of entering and exiting the entrance guard of a human body and the like to the background server for statistical analysis and management, so that the manager of the background server monitors the article entering and exiting and the personnel entering and exiting conditions of each entrance guard.
The number of the receiving antennas is N, wherein N is a positive integer not less than 1; the number of the transmitting antennas is M, wherein M is a positive integer not less than 1. For the setting of transmitting antenna and receiving antenna, in order to detect the position of human body and follow-up detection human body business turn over door's direction through the radar better, the receiving antenna and the transmitting antenna of hyperfrequency intelligent security entrance guard equipment can be a plurality of, also can be a plurality of, has a plurality of receiving antennas and transmitting antenna under the optimal condition, because multiunit receiving antenna and transmitting antenna are favorable to receiving more accurate human body position information, and the precision is higher. The combination of the antennas may be a combination of one transmitting antenna and two receiving antennas (i.e., m=1, n=2), two transmitting antennas and two receiving antennas (i.e., m=2, n=2), three transmitting antennas and four receiving antennas (i.e., m=3, n=4), etc., and of course, the number of transmitting antennas and receiving antennas may be the same, but the optimal configuration is that the number of receiving antennas is greater than the number of transmitting antennas, so that the position of the human body and the direction of the entrance and exit of the human body can be detected precisely by the radar.
For the proportioning setting of the receiving antenna and the transmitting antenna, the receiving antenna, the transmitting antenna and the radar module are respectively integrated on the printed circuit board. The receiving antenna and the transmitting antenna are integrated in the radar chip, and the crystal oscillator, the radar chip and the memory are respectively integrated on the printed circuit board.
It should be noted that, for the setting of transmitting antenna and receiving antenna, receiving antenna and transmitting antenna can be welded on PCB printed circuit board together with crystal oscillator, radar chip, memory, and another way makes radar chip just integrate receiving antenna and transmitting antenna before leaving factory, namely does transmitting antenna and receiving antenna in advance in radar chip, and not welds on the PCB, and the advantage of the setting of the antenna of the latter mode lies in, under the configuration that needs multiunit receiving antenna and transmitting antenna, and the integrated level is higher, can reduce the product size of hyperfrequency intelligent entrance guard equipment as far as possible, more is favorable to installation and use.
Compared with the technology of using infrared equipment, ultrasonic equipment or camera equipment to identify and manage the human body and articles of the entrance and exit in the prior art, the radar technology has higher-precision identification capability and stronger anti-interference capability, can work for 24 hours in all weather, ensures that the human body existence and direction judgment and detection are more accurate when the moving body enters and exits, and has more advantages compared with the infrared equipment, the ultrasonic equipment or the camera equipment. In addition, the radar equipment has low transmitting power, no harm to human bodies and environments, no risk of invading privacy, small size and convenient installation, and is more suitable in terms of cost.
The entrance guard equipment can have multiple mounting means, if entrance guard equipment is inhaled the top and is installed on the entrance guard body, entrance guard equipment side slope is installed on the entrance guard body, entrance guard equipment installs subaerial at the entrance guard body. The ceiling mounting mode can effectively realize radar detection in a large angle range, and the detection accuracy of human body entering and exiting the entrance guard is improved; the inclined installation mode can realize a radar detection function at a longer distance, so that the detection range of the entrance guard of a human body is wider; the ground installation mode can realize intelligent noninductive detection function.
Compared with the technology of using infrared equipment, ultrasonic equipment or camera equipment to identify and manage the human body and articles of the entrance and exit in the prior art, the radar technology has higher-precision identification capability and stronger anti-interference capability, can work for 24 hours in all weather, ensures that the human body existence and direction judgment and detection are more accurate when the moving body enters and exits, and has more advantages compared with the infrared equipment, the ultrasonic equipment or the camera equipment. In addition, the radar equipment has low transmitting power, no harm to human bodies and environments, no risk of invading privacy, small size and convenient installation, and is more suitable in terms of cost.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. An ultra-high frequency intelligent security access control system, which is characterized by comprising: the access control device comprises an access control device, a router and a background server, wherein the access control device comprises a receiving antenna, a transmitting antenna and a radar module; one end of the router is connected with the radar module in a wired or wireless way, and the other end of the router is connected with the background server in a wired or wireless way;
and the radar module generates state information when the moving body passes through the entrance guard through the ultra-high frequency radar signal, and sends the state information to the background server through the router.
2. The ultra-high frequency intelligent security access control system according to claim 1, wherein the radar module comprises a crystal oscillator, a memory and a radar chip, the radar chip is respectively connected with the crystal oscillator and the memory, the memory is pre-stored with judging data, the judging data judges the existence state and direction of a moving body when the moving body passes through the access control, the radar chip generates the state information by reading the judging data, and the state information is sent to the background server.
3. The ultra-high frequency intelligent security access control system of claim 2, further comprising a radio frequency identification module, wherein one end of the radio frequency identification module is connected with the radar module, and the other end of the radio frequency identification module is connected with the router in a wired or wireless manner; when the radar module detects that the moving body passes through the entrance guard, the radar module triggers the radio frequency identification module to read tag information carried by the moving body, and sends the tag information to the background server through the router.
4. The ultra-high frequency intelligent security access control system of claim 2 or 3, wherein the status information comprises a first status information and a second status information, the first status information is status information of human existence, and the second status information is direction information of human entering and exiting the access control.
5. The ultra-high frequency intelligent safety access control system according to claim 2 or 3, wherein the number of the access control devices is L, wherein L is a positive integer greater than or equal to 1, and when L is greater than 1, the L access control devices are connected by wireless or wired connection.
6. An ultra-high frequency intelligent security access control system according to claim 2 or 3, wherein the number of the receiving antennas is N, wherein N is a positive integer not less than 1; the number of the transmitting antennas is M, wherein M is a positive integer not less than 1.
7. The ultra-high frequency intelligent security access control system of claim 6, wherein the receiving antenna, the transmitting antenna and the radar module are integrated on a printed circuit board, respectively.
8. The ultra-high frequency intelligent security access control system of claim 6, wherein the receiving antenna and the transmitting antenna are integrated within the radar chip, and the crystal oscillator, the radar chip and the memory are integrated on a printed circuit board, respectively.
9. An ultra-high frequency intelligent security entrance guard, characterized by comprising an entrance guard body, and further comprising an entrance guard system as claimed in any one of claims 1-8, wherein the receiving antenna, the transmitting antenna and the radar module are mounted on the entrance guard body, or the receiving antenna, the transmitting antenna, the radar module and the radio frequency identification module are mounted on the entrance guard body.
10. The ultra-high frequency intelligent security door control of claim 9, wherein said receiving antenna, said transmitting antenna and said radar module are ceiling mounted on said door control body, or side-tilt mounted on said door control body, or mounted on the ground of said door control body.
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| CN202310489226.1A CN116778618A (en) | 2023-05-04 | 2023-05-04 | Ultrahigh frequency intelligent safety access control system and access control |
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| CN202310489226.1A CN116778618A (en) | 2023-05-04 | 2023-05-04 | Ultrahigh frequency intelligent safety access control system and access control |
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