CN215067288U - Radar sensing system applied to vibration carrier and vibration carrier - Google Patents
Radar sensing system applied to vibration carrier and vibration carrier Download PDFInfo
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- CN215067288U CN215067288U CN202122728926.0U CN202122728926U CN215067288U CN 215067288 U CN215067288 U CN 215067288U CN 202122728926 U CN202122728926 U CN 202122728926U CN 215067288 U CN215067288 U CN 215067288U
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Abstract
The utility model discloses a radar sensing system applied to a vibration carrier and the vibration carrier, belonging to the technical field of radar detection, and a radar and a vibration acquisition unit are arranged on the vibration carrier; and the main control unit is connected with the output end of the vibration acquisition unit and the output end of the radar. The utility model discloses a vibration acquisition unit carries out the perception to the vibration state of vibration carrier, and whether current radar detection is effective is judged based on the vibration state of current vibration carrier, and when the real-time vibration value of vibration carrier was less than the threshold value promptly, it was effective to judge current radar detection to this shielding carrier promotes the reliability of radar detection to the interference of radar detection.
Description
Technical Field
The utility model relates to a radar detection technology field especially relates to a be applied to radar sensing system and vibration carrier of vibration carrier.
Background
The radar is used as a sensor and is increasingly applied to various household appliances, wherein the radar is applied to a large number of the household appliances, on one hand, the radar can detect whether people exist around the sound box and the state of the people, and then the intelligent control of the sound box is realized based on data collected by the radar, such as unmanned shutdown, shutdown during sleep, sound following and the like.
However, when the sound box works, the sound box can generate mechanical vibration; when the radar detects a human body, particularly when the human body is sensed, the radar detects human body micro-motion characteristics (including human body respiration, heartbeat, weak body motion and the like), if a platform carrier (sound box) where the radar is located is in a vibration state, the work of the radar can be seriously interfered, the detection accuracy and reliability of the radar are greatly reduced, and even the radar fails to work.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome when the radar is in the vibration carrier, survey precision and reliability low, the problem of work inefficacy even provides a be applied to the radar sensing system and the vibration carrier of vibration carrier.
The purpose of the utility model is realized through the following technical scheme: a radar sensing system applied to a vibration carrier specifically comprises a radar arranged on the vibration carrier; the vibration acquisition unit is arranged on the vibration carrier; and the main control unit is connected with the output end of the vibration acquisition unit and the output end of the radar.
In one example, the radar is a human detection radar, in particular a microwave human detection radar or a millimeter wave human detection radar, capable of sensing the presence of a stationary or moving human.
In one example, the radar has a sounding interval of 25ms to 100 ms.
In one example, the radar has a one-cycle data processing time ≦ 20 ms.
In one example, the vibration acquisition unit is embodied as a vibration sensor.
In one example, the data acquisition refresh rate of the vibration acquisition unit is 40Hz-100 Hz.
In one example, the main control unit is any one of a single chip microcomputer, an FPGA, an ARM, a PLC, and a DSP.
In an example, the system further comprises a wireless communication unit, and the radar is connected with the main control unit through the wireless communication unit.
In one example, the system further comprises a terminal device connected with the main control unit via the wireless communication unit.
It should be further noted that the technical features corresponding to the above examples can be combined with each other or replaced to form a new technical solution.
The utility model discloses still include a vibration carrier, this vibration carrier includes that arbitrary above-mentioned example or a plurality of example combination form radar sensing system.
Compared with the prior art, the utility model discloses beneficial effect is:
the utility model discloses a vibration acquisition unit carries out the perception to the vibration state of vibration carrier, and whether current radar detection is effective is judged based on the vibration state of current vibration carrier, and when the real-time vibration value of vibration carrier was less than the threshold value promptly, it was effective to judge current radar detection to this shielding carrier promotes the reliability of radar detection to the interference of radar detection.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.
Fig. 1 is a system diagram of an example of the present invention;
fig. 2 is a system diagram of another example of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are the directions or positional relationships indicated on the basis of the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
In one example, a radar sensing system applied to a vibration carrier, as shown in fig. 1, specifically includes a radar and a vibration acquisition unit disposed in the vibration carrier; the system further comprises a main control unit, wherein the main control unit is preferably integrated in the vibration carrier, connected with the output end of the vibration acquisition unit and the output end of the radar, and used for determining the vibration state of the vibration carrier according to the vibration information fed back by the vibration acquisition unit so as to determine whether radar detection is effective or not. Specifically, the vibration carrier is equipment which can be in a vibration state when the vibration carrier works, and part of the vibration carrier in the embodiment of the application is specifically a sound box; when the sound box equipment works, mechanical vibration of the equipment can be caused, so that radar work is influenced, however, no matter voice, music or other sound playing is carried out on the sound box equipment, short-term sound pause or mute phenomenon exists in a certain time period (for example, 2 minutes or shorter), different phenomena correspond to different vibration states of the sound box, the sound box equipment can be determined to be in an effective vibration state corresponding to the pause or mute through the vibration acquisition unit, and during the time period corresponding to the effective vibration state, data detected by the radar are regarded as effective data. The main control unit is connected with the output end of the radar in a wired or wireless mode, and preferably in a wireless mode, namely the main control unit receives detection information of the radar. The main control unit and the vibration signal acquisition unit are preferably in wired connection, so that the interference of signals can be further reduced, and the effectiveness of data analysis is ensured.
The working principle of the above example will now be explained:
the system is powered on to start working, the radar and the vibration acquisition unit start working synchronously, the vibration acquisition unit transmits acquired real-time vibration information (mechanical vibration information of the radar and the sound box) to the main control unit, meanwhile, the radar transmits detected human body micro-motion characteristic data to the main control unit, the main control unit judges whether the real-time vibration information is larger than a vibration threshold value, if so, the sound box mechanical vibration has large interference on radar detection, and the human body micro-motion characteristic data acquired by the radar is invalid; if the value is less than the preset value, the mechanical vibration of the sound box has small interference on radar detection, the human body micro-motion characteristic data collected by the radar is effective, and the human body micro-motion characteristic data is stored to provide a theoretical basis for subsequent data analysis. The utility model senses the vibration state of the vibration carrier through the vibration acquisition unit, judges whether the current radar detection is effective or not based on the vibration state of the current vibration carrier, thereby shielding the interference of the carrier to the radar detection and improving the reliability of the radar detection; and this application is played the clearance through the different sounds of audio amplifier in-process and is gathered human fine motion characteristic signal, can not influence the original operating condition of audio amplifier equipment. More specifically, the vibration threshold value in the above process may be determined through multiple experiments, that is, the mechanical vibration values of the radar and the speaker device are determined correspondingly when the current speaker plays a mute or a stop sound; of course, the vibration threshold may also be determined from historical data in a database.
It should be further noted that, the data analysis and judgment process of the main control unit in the present application belongs to the common general knowledge in the art, and if the main control unit judges whether the real-time vibration information is greater than the vibration threshold value, etc., the judgment process is the basic logic judgment function of the main control unit, which is not the technical improvement point of the present application, and is not within the scope of the present invention.
In one example, the radar is a body detection radar, specifically a micro-scale microwave body detection radar, such as a 24G body presence detection radar R24AVD1, which is capable of sensing the presence of a stationary or moving body, conveniently integrated inside the enclosure, and capable of sensing micro-motion characteristics of the body around the enclosure.
In an example, the detection interval of the radar is 50ms, namely the radar interval is 50ms to send a radar detection signal, the radar detection interval is short, real-time detection can be realized, more abundant human body micro-motion characteristic data can be captured, and the detection accuracy is improved.
In one example, the radar has a monocycle data processing time of 20 ms. The single-cycle data processing time is the time from the radar sending the detection signal to the receiving of the echo signal, and is the same as the radar detection interval, and the single-cycle data processing time is used for ensuring the real-time performance of radar detection.
In one example, the vibration acquisition unit is embodied as a vibration sensor. Specifically, the vibration sensor is an MPU6050 chip or other gyroscope chip with the same function; as an option, the vibration sensor, the radar and the main control unit are integrated on the main board, the main board is fixed inside the sound box, the data transmission pin of the vibration sensor is connected with the input/output pin of the main control unit, and the pin connection mode of the chip is specifically determined by inquiring a chip manual, which belongs to the common knowledge of the technical personnel in the field and is not further described in the application.
In one example, the data acquisition refresh rate of the vibration acquisition unit is 100 Hz. The data acquisition refresh rate represents the data acquisition times of the vibration unit in the acquisition period, the vibration acquisition unit 1s acquires vibration data for 100 times in the example, and the higher the acquisition refresh rate is, the closer the acquired data is to the real vibration data of the sound box.
In one example, the main control unit is a single chip microcomputer, the data processing capacity is high, the cost and the expenditure are low, a plurality of data interfaces are provided, and the system performance can be conveniently expanded in the later period.
In one example, the system further comprises a wireless communication unit, and the radar is connected with the main control unit through the wireless communication unit, that is, an I/O terminal of the main control unit, such as a single chip microcomputer, is connected with a data communication terminal of the wireless communication unit. Specifically, the radar includes a data transceiver subunit and a control subunit, the data transceiver subunit includes a signal transmitting module and a signal receiving module, a detection signal is transmitted through a transmitting antenna in the signal transmitting module, the detection signal is reflected after reaching a human body, and an echo signal after reflection is received through a receiving antenna in the receiving module and transmitted to the control subunit for analysis. The wireless communication unit can be any one of an NB-IoT communication module, a ZigBee communication module, a WIFI module and a Bluetooth module, and the NB-IoT communication module is adopted in the present example, so that the anti-interference capability and the data transmission capability are strong.
In one example, the system further comprises a terminal device connected with the main control unit via the wireless communication unit. Specifically, the terminal device is preferably a mobile terminal device, the main control unit may transmit vibration information acquired by the vibration acquisition unit and human body micro motion characteristic data acquired by the radar to the mobile terminal through the wireless communication unit, and simultaneously, the main control unit transmits a current data analysis result (whether the human body micro motion characteristic data acquired by the radar in the period is valid) to the mobile terminal, so that a user can conveniently acquire the micro motion characteristic data of the user through the mobile terminal.
In an example, the radar sensing system further includes an execution unit, and an output end of the main control unit is connected with the execution unit. As an example, the execution unit is specifically a relay, a coil of the relay is connected to an I/O terminal of a main control unit, such as a single chip microcomputer, via a triode, a contact of the relay is connected in series to a power circuit of the sound box device, and on the basis that the main control unit determines that the current human body inching characteristic data is valid, if the main control unit further determines that the user has been away from the sound box device for a first threshold time according to the human body inching characteristic data, if the current human body inching characteristic data is smaller than the human body inching characteristic threshold, the main control unit controls the relay contact to be disconnected, that is, the sound box power supply is disconnected at this time, and the sound box stops working, thereby saving power consumption. More specifically, the first threshold time is user-defined time, such as 30min, and correspondingly, the radar sensing system further includes an input unit, an output end of the input unit is connected with the main control unit, such as an I/O of the single chip microcomputer, so that the user can adjust the first threshold time conveniently. As an option, the input unit is a touch screen. By combining the present example with the example that the system includes the terminal device, the main control unit can further send the working state data (data indicating whether to stop working) of the sound box to the mobile terminal, so that the user can monitor the working state of the sound box conveniently.
The application also includes a vibration carrier, which includes a radar sensing system formed by combining the above examples, as shown in fig. 2. As an option, the vibration carrier is an acoustic enclosure device, and a radar sensing system formed by the corresponding example or the corresponding example is integrated in the acoustic enclosure device.
The above detailed description is the detailed description of the present invention, and it can not be considered that the detailed description of the present invention is limited to these descriptions, and to the ordinary skilled person in the art to which the present invention belongs, without departing from the concept of the present invention, a plurality of simple deductions and replacements can be made, which should be regarded as belonging to the protection scope of the present invention.
Claims (10)
1. A radar sensing system for use with a vibrating carrier, comprising: it includes:
the radar is arranged on the vibration carrier;
the vibration acquisition unit is arranged on the vibration carrier;
and the main control unit is connected with the output end of the vibration acquisition unit and the output end of the radar.
2. A radar sensing system applied to a vibrating carrier according to claim 1, wherein: the radar is a microwave radar or a millimeter wave radar.
3. A radar sensing system applied to a vibrating carrier according to claim 1, wherein: the detection interval of the radar is 25ms-100 ms.
4. A radar sensing system applied to a vibrating carrier according to claim 1, wherein: the processing time of the single-cycle data of the radar is less than or equal to 20 ms.
5. A radar sensing system applied to a vibrating carrier according to claim 1, wherein: the vibration acquisition unit is specifically a vibration sensor.
6. A radar sensing system applied to a vibrating carrier according to claim 1, wherein: the data acquisition refresh rate of the vibration acquisition unit is 40Hz-100 Hz.
7. A radar sensing system applied to a vibrating carrier according to claim 1, wherein: the main control unit is any one of a single chip microcomputer, an FPGA, an ARM, a PLC and a DSP.
8. A radar sensing system applied to a vibrating carrier according to claim 1, wherein: the system also comprises a wireless communication unit, and the radar is connected with the main control unit through the wireless communication unit.
9. A radar sensing system applied to a vibrating carrier according to claim 8, wherein: the system also comprises terminal equipment, and the terminal equipment is connected with the main control unit through the wireless communication unit.
10. A vibration carrier characterized by: including the radar sensing system of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122728926.0U CN215067288U (en) | 2021-11-09 | 2021-11-09 | Radar sensing system applied to vibration carrier and vibration carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122728926.0U CN215067288U (en) | 2021-11-09 | 2021-11-09 | Radar sensing system applied to vibration carrier and vibration carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215067288U true CN215067288U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122728926.0U Active CN215067288U (en) | 2021-11-09 | 2021-11-09 | Radar sensing system applied to vibration carrier and vibration carrier |
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| Country | Link |
|---|---|
| CN (1) | CN215067288U (en) |
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2021
- 2021-11-09 CN CN202122728926.0U patent/CN215067288U/en active Active
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Denomination of utility model: A radar perception system and vibration carrier applied to vibration carriers Granted publication date: 20211207 Pledgee: Chengdu Rural Commercial Bank Co.,Ltd. Jinniu Branch Pledgor: Chengdu Songyuan Technology Co.,Ltd. Registration number: Y2024980039409 |