CN215449577U - Radar dynamic target simulation mechanism and radar test system - Google Patents
Radar dynamic target simulation mechanism and radar test system Download PDFInfo
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- CN215449577U CN215449577U CN202120989160.9U CN202120989160U CN215449577U CN 215449577 U CN215449577 U CN 215449577U CN 202120989160 U CN202120989160 U CN 202120989160U CN 215449577 U CN215449577 U CN 215449577U
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Abstract
The utility model provides a radar dynamic target simulation mechanism and a radar test system, wherein the radar dynamic target simulation mechanism comprises: the side detector moves synchronously with the main detector on the side edge of the main detector, and the side detector and the main detector can realize differentiation in two dimensions of the position and the movement speed. Through setting up main detector and limit detector, the main detector is used for simulating the sudden start of human target, uniform velocity motion and the sudden stop, and the limit detector is used for simulating the swing of arm, and main detector and limit detector velocity of movement can set up with differentiation to asynchronous state and gesture when the simulation human motion, the degree of accuracy that can improve human motion induction radar performance and detect.
Description
Technical Field
The utility model relates to the technical field of radar testing, in particular to a radar dynamic target simulation mechanism and a radar testing system.
Background
The human body motion induction radar is used for recognizing information of human body such as appearance, motion, gait and the like, so as to provide trigger signals for subsequent tasks such as turning on a light, opening a door, starting an electric appliance and the like. The human motion induction radar is widely applied to the fields of airports, stations, escalators, hotels and proscenums and the like. Traditional human motion response radar test method needs real person reciprocating motion in the radar field of vision, not only consuming time and power, moreover because human radar cross section and people's size of a dimension, clothing and human water content etc. of wearing are closely related, radar cross section is big different under same people the same day different time quantum, this leads to utilizing real person to test motion response radar, its experimental repeatability is relatively poor, the test result is undulant big, the misjudgement probability is big, be difficult to provide stable, accurate, reliable discrimination data for the quality detection of radar.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a radar dynamic target simulation mechanism capable of simulating the motion state of a human body, which is used for improving the accuracy of a radar test result.
Another objective of the present invention is to provide a radar testing system using the above radar dynamic target simulation mechanism.
In order to achieve the above purpose, the utility model provides the following technical scheme:
in a first aspect, a radar dynamic target simulation mechanism is provided, including: the side detector moves synchronously with the main detector on the side edge of the main detector, and the side detector and the main detector can realize differentiation in two dimensions of the position and the movement speed.
Furthermore, the simulation mechanism further comprises a main guide rail and a side guide rail, wherein the side guide rail is arranged in parallel with the main guide rail, the main detector is arranged on the main guide rail, and the side detector is arranged on the side guide rail.
Optionally, the number of the side guide rails is two, the side guide rails are respectively arranged on two sides of the main guide rail, and each side guide rail is provided with the side detector.
Optionally, in the two edge detectors, a moving speed of one of the edge detectors is greater than a moving speed of the main detector, and a moving speed of the other edge detector is less than a moving speed of the main detector.
Optionally, the main detector and the edge detector are corner reflectors.
Optionally, the size of the main detector is larger than the size of the side detector.
Optionally, the main detector and the side detector are supported by corresponding guide rails through support rods, and the ground clearance of the main detector is greater than that of the side detector.
Optionally, the side rail is connected to the main rail by a slider.
As a second aspect, a radar test system is provided, which includes a test darkroom, and the radar dynamic target simulation mechanism is arranged in the test darkroom.
The wave-absorbing device further comprises a wave-absorbing baffle, wherein the wave-absorbing baffle is arranged below the side detector close to the main detector and the side detector.
The technical scheme provided by the utility model has the beneficial effects that:
according to the radar dynamic target simulation mechanism, the main detector and the side detector are arranged, the main detector is used for simulating sudden starting, uniform motion and sudden stopping of a human body target, the side detector is used for simulating swinging of an arm, and the motion speeds of the main detector and the side detector can be set in a differentiation mode, so that asynchronous states and postures of human body motion are simulated, and the accuracy of performance detection of a human body motion induction radar can be improved.
The radar test system is fully automatically operated without manual intervention, and can greatly reduce the product research and development and production cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below.
Fig. 1 is a schematic structural diagram of a radar dynamic target simulation mechanism according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a radar testing system according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and the embodiments of the present invention are illustrative only and are not intended to limit the scope of the present invention.
The term "include" and variations thereof as used herein are open-ended, i.e., "including but not limited to". The term "coupled" may refer to direct coupling or indirect coupling via intermediate members (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions for other terms will be given in the following description.
Referring to fig. 1 and 2, the present invention provides a radar dynamic target simulation mechanism (hereinafter referred to as "simulation mechanism") and a radar testing system using the same, which simulates human body movement through the simulation mechanism, and improves accuracy of performance detection of a human body induction radar, thereby improving automation degree of the radar testing system and reducing cost of radar testing.
The simulation mechanism comprises a detector assembly 3 and a guide rail assembly 2, the detector assembly comprises a main detector 31 and side detectors 32 and 33, and the guide rail assembly comprises a main guide rail 21 and side guide rails 22 and 23 which correspondingly support the main detector and the side detectors and provide guidance for the movement of the main detector and the side detectors. The positions and the movement speeds of the main detector and the side detector can be differentiated, so that the walking of a human body and the swinging of arms can be simulated.
Optionally, the number of the main detectors is one, the number of the side detectors is two, and the two side detectors are respectively arranged at two sides of the main detector through two side guide rails. The main detector and the side detector are corner reflectors, and the reflection section area of the main detector is larger than that of the side detector, so that the main detector simulates the walking of a human body, and the side detector simulates the swinging of an arm. One of the side detectors has a speed higher than the main detector and the other side detector has a speed lower than the main detector for simulating the forward and backward swing of the arm.
In one embodiment, the side guide rail is connected to the main guide rail through a slider (not labeled), so that the side detector can move synchronously with the main detector, the movement of the side detector is overlapped with the movement of the main detector, different movement positions and different movement speeds of the side detector and the main detector are realized, and the swinging of the arm when the human body walks is simulated. The main detector and the side detector are supported on the main guide rail and the side guide rail through support rods (not marked), and the ground clearance of the main detector is greater than that of the side detector.
In another embodiment, the side guide rail can be separated from the main guide rail, and the side detector and the main detector can move along with each other and realize differentiation by controlling the respective movement speeds of the main detector and the side detector.
The radar test system comprises a test darkroom 1 and a radar test bench 4, wherein the simulation mechanism and the radar test bench are arranged in the test darkroom, the radar test bench is used for installing a radar to be tested, and the main detector and the side detector are both towards the radar test bench so as to receive a signal of the radar to be tested. Wherein the testing chamber 1 can be a semi-open chamber.
Furthermore, the radar test system also comprises a wave-absorbing baffle plate 5, wherein the wave-absorbing baffle plate 5 is arranged close to the side detector and the main detector, and the wave-absorbing baffle plate is arranged lower than the side detector, so that a pure non-reflection electric wave space is provided, and the electromagnetic waves can not generate multi-path transmission so as to interfere the emission and the reception of normal signals.
The foregoing description is only exemplary of the preferred embodiments of the utility model and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, and other embodiments can be made by combining the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features are replaced with (but not limited to) features having similar functions of the present invention.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims (10)
1. A radar dynamic target simulation mechanism, comprising: the side detector moves synchronously with the main detector on the side edge of the main detector, and the side detector and the main detector can realize differentiation in two dimensions of the position and the movement speed.
2. The radar dynamic target simulation mechanism of claim 1, further comprising a main guide rail and a side guide rail, wherein the side guide rail and the main guide rail are arranged in parallel, the main probe is arranged on the main guide rail, and the side probe is arranged on the side guide rail.
3. The radar dynamic target simulation architecture of claim 2, wherein two of the edge guides are disposed on each side of the main guide, and the edge detector is disposed on each edge guide.
4. The radar dynamic target simulation architecture of claim 3, wherein the motion speed of one of the two edge detectors is greater than the motion speed of the main detector, and the motion speed of the other edge detector is less than the motion speed of the main detector.
5. The radar dynamic target simulation mechanism of claim 3, wherein the primary and edge detectors are corner reflectors.
6. The radar dynamic target simulation mechanism of claim 5, wherein the size of the primary detector is larger than the size of the side detector.
7. The radar dynamic target simulation mechanism of claim 6, wherein the main detector and the side detector are supported to the corresponding guide rails by support rods, and the height of the main detector from the ground is greater than the height of the side detector from the ground.
8. The radar dynamic target simulation mechanism of claim 2, wherein the side rail is connected to the main rail by a slider.
9. A radar testing system comprising a testing darkroom, wherein the radar dynamic target simulation mechanism of any one of claims 1 to 8 is arranged in the testing darkroom.
10. The radar testing system of claim 9, further comprising a wave absorbing baffle disposed below the edge detector proximate the main detector and the edge detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120989160.9U CN215449577U (en) | 2021-05-10 | 2021-05-10 | Radar dynamic target simulation mechanism and radar test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120989160.9U CN215449577U (en) | 2021-05-10 | 2021-05-10 | Radar dynamic target simulation mechanism and radar test system |
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| Publication Number | Publication Date |
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| CN215449577U true CN215449577U (en) | 2022-01-07 |
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| CN202120989160.9U Active CN215449577U (en) | 2021-05-10 | 2021-05-10 | Radar dynamic target simulation mechanism and radar test system |
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