CN211369998U - Millimeter wave radar automatic door control system - Google Patents
Millimeter wave radar automatic door control system Download PDFInfo
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- CN211369998U CN211369998U CN201922180200.0U CN201922180200U CN211369998U CN 211369998 U CN211369998 U CN 211369998U CN 201922180200 U CN201922180200 U CN 201922180200U CN 211369998 U CN211369998 U CN 211369998U
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Abstract
The invention provides a millimeter wave radar automatic door control system, comprising: the automatic door control system comprises a millimeter wave radar 1, a controller 2, an automatic door 3 and a door control motor 5, wherein the millimeter wave radar 1 is connected with the controller 2, and the controller 2 controls the door control motor 5 to drive the automatic door 3 to open or close; the millimeter wave radar 1 includes: radio frequency front end 11, signal processing module 12, central processing unit 13, communication module 21 through the setting of central processing unit 13 connection controller 2, and communication module 21 connects host computer 6 through wired or wireless mode, and control module 22 that sets up in the controller 2 also is connected to central processing unit 13 and accepts its control, control module 22 controls door control motor 5, opening and closing of door control motor 5 control automatically-controlled door 3.
Description
Technical Field
The invention belongs to the technical field of radar automatic door control, and particularly relates to a millimeter wave radar automatic door control system.
Background
Traditional access control strategy is infrared induction, infrared induction is the infrared ray that receives human transmission through pyroelectric element, trigger follow-up circuit's work, its induction distance is short, the angle is less, the environment, the temperature, the dust can lead to infrared spurious triggering or out of work, infrared induction control can only the measurement personnel at out-of-range, can not judge personnel's intention, open in the scope, do not carry out the instruction action at the scope, and it need expose to detect the infrared induction head, inconvenient installation.
Compare in traditional infrared control, millimeter wave radar control has following advantage: the device is not influenced by environment and temperature; the detection distance is long and the penetrability is strong; the movement track of the object can be identified, and the in-out intention of the personnel can be judged automatically. However, the autonomous judgment of the person's in-and-out intention requires special techniques for support, as to how to recognize the object movement trajectory in particular.
Disclosure of Invention
The invention aims to provide an automatic door control system for a millimeter wave radar, wherein the millimeter wave radar carries out related instructions according to setting.
In order to achieve the purpose, the invention adopts the following technical scheme:
a millimeter wave radar automatic door control system comprising: the automatic door control system comprises a millimeter wave radar, a controller, an automatic door and a door control motor, wherein the millimeter wave radar is connected with the controller, and the controller controls the door control motor to drive the automatic door to open or close; the millimeter wave radar includes: the radio frequency front end, the signal processing module, the central processing unit, through the communication module that sets up in the central processing unit connection controller, the communication module connects the host computer through wired or wireless mode, and the control module that sets up in the controller also is connected to the central processing unit and accepts its control, control module control gate motor, the opening and the closing of gate motor control automatically-controlled door.
Further, the millimeter wave radar automatic door control system further comprises: and the manual switch button is connected with the controller.
Further, a millimeter wave radar automatic door control system, the radio frequency front end includes 2 groups of transmitting antenna, 4 groups of receiving antenna, synthesizer and mixers, outputs an intermediate frequency IF signal, signal processing module is the DSP treater, is responsible for eliminating the interference clutter, central processing unit adopts the ARM treater, is responsible for the analysis and the target output of radar detection information.
Further, the millimeter wave radar automatic door control system, the automatic door is one of push-and-pull door, vertical hinged door, folding door, sliding door, singly open one of the door, two divisions of doors.
Further, the millimeter wave radar automatic door control system is characterized in that the millimeter wave radar is installed on the side face or the top of the automatic door and installed in the automatic door frame.
Further, according to the millimeter wave radar automatic door control system, the controller is installed on the side face or the top of the automatic door.
The beneficial effects of the invention include: the millimeter wave radar has the advantages of long triggering distance, wide angle, no limitation to temperature, dust environment, dust and the like, and can carry out related instructions according to setting; the radar is small in size and is arranged in the automatic door frame, the parameter setting is realized through a communication module in the controller, and the system structure is reasonable; the invention enhances the environmental anti-interference performance of the product and the accuracy of target identification; the invention can monitor the door in real time in multiple directions, and increases the opening selectivity of the automatic door.
Drawings
FIG. 1 is a schematic diagram of a trajectory triggered millimeter wave radar access control system;
FIG. 2 is a schematic diagram of a circuit connection structure of a trajectory-triggered millimeter wave radar access control system;
in the figure: 1-millimeter wave radar; 2-a controller; 3-automatic door; 4-manual switch button.
Detailed Description
The present invention will be further described with reference to the accompanying drawings so as to facilitate the understanding of the present invention by those skilled in the art.
Example 1: as shown in fig. 1 and 2, a trajectory-triggered millimeter wave radar automatic door control system comprises: the automatic control system comprises a millimeter wave radar 1, a controller 2, an automatic door 3, a manual switch button 4 and a door control motor 5, wherein the millimeter wave radar 1 is installed on the side surface or the top of the automatic door 3, the millimeter wave radar 1 is connected with the controller 2, the controller 2 controls the door control motor 5 to drive the automatic door 3 to be opened or closed, and the manual switch button 4 is connected with the controller 2 to supplement automatic control; a track-triggered millimeter wave radar automatic door control strategy corresponding to the system is as follows: s1) setting a detection area with a radius R with the automatic door 3 as the center; s2) tracking the object a entering the detection area; s3) analyzing the motion track AB of the target entering the detection area, and calculating the included angle theta of the motion track AB towards the automatic door 3; s4) if the theta 1 is less than theta 2 (-90 < theta 1 < 0 < theta 1 < theta 2 < 90 < theta), continuing to analyze the distance d between the target position B and the automatic door 3, and if d is less than or equal to a set threshold value d1, opening the automatic door 3; s5) the radar detects that the target passes through the automatic door 3 or leaves the detection area, then a closing signal of the automatic door 3 is output; in another embodiment, the detection area may be set to be square, or the detection area may be set only on one side of the automatic door 3; aiming at different use places of the automatic door 3, the setting parameters of the above strategies are preferably determined after field installation and test, the radar is small in size and is installed in an automatic door frame, the parameter setting is realized through a communication module 21 in a controller 2, the system structure is reasonable, therefore, as shown in the attached figure 2, the track-triggered millimeter wave radar automatic door control system is further optimized, and the millimeter wave radar 1 comprises: the radio frequency front end 11 comprises 2 groups of transmitting antennas, 4 groups of receiving antennas, a synthesizer and a mixer, outputs an intermediate frequency IF signal, the signal processing module 12 is a DSP processor and is responsible for eliminating interference clutter, the central processing unit 13 adopts an ARM processor and is responsible for analyzing radar detection information and outputting a target, a control strategy and parameters R, theta 1, theta 2 and d1 which are arranged in the central processing unit 13 receive the modification of the upper computer 6, the central processing unit 13 is connected with a communication module 21 which is arranged in the controller 2, the communication module 21 is connected with the upper computer 6 in a wired or wireless mode, receives a parameter modification instruction of the upper computer 6 and sends the parameter modification instruction to the central processing unit 13, the modification of corresponding parameters is allowed through specific instruction verification, and a control module 22 which is arranged in the controller 2 is also connected with the central processing unit 13 to receive the control of the central processing unit 13, the control module 22 controls the door control motor 5, and the door control motor 5 controls the opening and closing of the automatic door 3. The millimeter wave radar automatic door control device is used for controlling an automatic door of a millimeter wave radar, a moving target appears in a radar detection view field range, the radar can immediately capture the position of the target, the moving direction and the moving track of the target are drawn out in an algorithm according to the direction information feedback of the moving of the target, the expected value of the moving tendency of the target is calculated according to the moving track of the target, when the target moves to a signal output area, the radar can output a door opening signal, and the automatic door is opened; if the target does not have a trajectory tendency to move toward the doorway, the radar will not output any signal even if the target moves within the field of view area detected by the radar.
Example 2: millimeter wave radar 1 is small and installs in automatic door frame the inside, realize through communication module 21 in the controller 2 with the parameter setting, controller 2 volume can set up beside the door frame and bulky, also can realize like this to the parameter setting of traditional radar, the structure of this system is not only limited to the control strategy and parameter R of setting for embodiment 1, theta 2, d1, but the system architecture is more reasonable, change the parameter of radar detection control according to the field usage demand after the radar of easy to assemble.
The above examples are only intended to illustrate specific embodiments of the present invention, but not to limit the present invention, and several modifications and refinements can be made without departing from the principle of the present invention, and these modifications and refinements should be regarded as the protection scope of the present invention.
Claims (6)
1. A millimeter wave radar automatic door control system is characterized by comprising: the automatic door control system comprises a millimeter wave radar (1), a controller (2), an automatic door (3) and a door control motor (5), wherein the millimeter wave radar (1) is connected with the controller (2), and the controller (2) controls the door control motor (5) to drive the automatic door (3) to open or close; the millimeter wave radar (1) includes: radio frequency front end (11), signal processing module (12), central processing unit (13), communication module (21) through setting up in central processing unit (13) connection director (2), and communication module (21) are connected host computer (6) through wired or wireless mode, and control module (22) that set up in controller (2) also are connected to central processing unit (13) and accept its control, control module (22) control gate motor (5), opening and closing of gate motor (5) control automatically-controlled door (3).
2. The millimeter wave radar automatic door control system according to claim 1, further comprising: and the manual switch button (4), and the manual switch button (4) is connected with the controller (2).
3. The millimeter wave radar automatic door control system according to claim 1, wherein the radio frequency front end (11) comprises 2 sets of transmitting antennas, 4 sets of receiving antennas, a synthesizer and a mixer, and outputs an Intermediate Frequency (IF) signal, the signal processing module (12) is a DSP processor and is responsible for eliminating interference clutter, and the central processing unit (13) adopts an ARM processor and is responsible for analysis of radar detection information and target output.
4. The millimeter wave radar automatic door control system according to any one of claims 1 to 3, wherein the automatic door is one of a sliding door, a side hung door, a folding door and a sliding door, and is one of a single door and a double door.
5. The millimeter wave radar automatic door control system according to any one of claims 1 to 3, wherein the millimeter wave radar (1) is installed on the side surface or the top of the automatic door (3) and installed inside the automatic door frame.
6. The millimeter wave radar automatic door control system according to any one of claims 1 to 3, wherein the controller (2) is installed on the side surface or the top of the automatic door (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922180200.0U CN211369998U (en) | 2019-12-09 | 2019-12-09 | Millimeter wave radar automatic door control system |
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| CN201922180200.0U CN211369998U (en) | 2019-12-09 | 2019-12-09 | Millimeter wave radar automatic door control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022217537A1 (en) * | 2021-04-15 | 2022-10-20 | 刘珲 | Smart door and non-contact control method therefor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022217537A1 (en) * | 2021-04-15 | 2022-10-20 | 刘珲 | Smart door and non-contact control method therefor |
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