CN213338019U - Device for detecting left-over personnel in vehicle - Google Patents
Device for detecting left-over personnel in vehicle Download PDFInfo
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- CN213338019U CN213338019U CN202021813723.0U CN202021813723U CN213338019U CN 213338019 U CN213338019 U CN 213338019U CN 202021813723 U CN202021813723 U CN 202021813723U CN 213338019 U CN213338019 U CN 213338019U
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Abstract
The utility model provides a leave over personnel detection device in car, leave over personnel detection device in this car and be applied to radar detection technical field, include: the system comprises a radar sensor module, an automobile central control module, a sound and light alarm module and a remote alarm module; the radar sensor module comprises an internal controller and a radio frequency unit, wherein the radio frequency unit comprises a first transmitting antenna, a first receiving antenna and a second receiving antenna, and the first transmitting antenna, the first receiving antenna and the second receiving antenna are all connected with the internal controller; the internal controller is connected with the automobile central control module, and the automobile central control module is respectively connected with the sound-light alarm module and the remote alarm module. The utility model provides a leave over personnel detection device in car can realize the accurate detection of the personnel of leaving over in the car, ensures personnel's safety better.
Description
Technical Field
The utility model belongs to the technical field of radar detection, more specifically say, relate to a leave over personnel detection device in car.
Background
With the popularization of private cars, the situations that children are forgotten in cars to cause accidents are rare, so that how to effectively detect the left-behind condition in cars becomes a technical problem that needs to be solved by technical personnel in the field. At present, the common solutions are mainly as follows:
(1) detecting whether a person exists in the vehicle by using an infrared sensor;
(2) a weight sensor is used to detect whether a child is left in the car.
However, in the scheme of identifying whether children are left in the car by using the infrared sensor, due to the irregularity of parts in the car, a plurality of blind areas which cannot be detected exist, the detection precision is seriously influenced by temperature, and the detection accuracy is not high; the scheme of utilizing the weight sensor to detect can not detect when the child carelessly squats in the aisle of the front-back row of seats. That is, the prior art schemes can not realize accurate detection of the left-behind people in the vehicle.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a leave over personnel detection device in car to solve the technical problem that the accurate detection of the personnel of leaving over in the unable realization car that exists among the prior art.
In order to achieve the above object, the utility model provides a leave over personnel detection device in car, the device includes:
the system comprises a radar sensor module, an automobile central control module, a sound and light alarm module and a remote alarm module;
the radar sensor module comprises an internal controller and a radio frequency unit, wherein the radio frequency unit comprises a first transmitting antenna, a first receiving antenna and a second receiving antenna, and the first transmitting antenna, the first receiving antenna and the second receiving antenna are all connected with the internal controller;
the internal controller is connected with the automobile central control module, and the automobile central control module is respectively connected with the sound-light alarm module and the remote alarm module.
Optionally, the in-vehicle left-behind person detection apparatus further includes:
and the human-computer interaction module is connected with the automobile central control module.
Optionally, the human-computer interaction module includes a touch unit and a display unit;
the touch unit and the display unit are connected with the automobile central control module.
Optionally, the radio frequency unit further includes a second transmitting antenna, a third receiving antenna, and a fourth receiving antenna;
and the second transmitting antenna, the third receiving antenna and the fourth receiving antenna are all connected with the internal controller.
Optionally, the radio frequency unit further includes a first virtual subunit and a second virtual subunit;
the first virtual subunit is respectively coupled with the first receiving antenna and the second receiving antenna; the second virtual sub-unit is coupled with the third receiving antenna and the fourth receiving antenna respectively.
Optionally, the radar sensor module further comprises a Flash storage unit, an EEPROM storage unit, and an encryption unit;
the Flash storage unit, the EEPROM storage unit and the encryption unit are all connected with an internal controller, and the encryption unit is also respectively connected with the Flash storage unit and the EEPROM storage unit.
Optionally, the radar sensor module further comprises a fault diagnosis unit;
the internal controller is connected with the fault diagnosis unit, and the fault diagnosis unit is also connected with the EEPROM storage unit.
Optionally, the radar sensor module further comprises a watchdog unit;
the watchdog unit is connected with the internal controller.
Optionally, the radar sensor module further comprises a CAN communication unit;
the internal controller is connected with the CAN communication unit, and the CAN communication unit is also connected with the automobile central control module.
Optionally, the radar sensor module further comprises a power management unit;
and the power supply management unit is used for converting an external power supply and supplying power to the radar sensor module.
The utility model provides a leave over personnel detection device in car's beneficial effect lies in:
on one hand, the embodiment of the utility model discloses a can adopt a transmitting antenna, two receiving antenna's mode is detected, two receiving antenna not only can realize mutual correction, still can carry out accurate positioning to the personnel of leaving behind according to two receiving antenna's data; on the other hand, the embodiment of the utility model provides a can adopt dual alarm mode, also leave the long-range alarm mode of other personnel by bus and remind the car personnel's on every side short-range alarm mode in back long-range warning also at other personnel by bus, can effectively ensure the personal safety who leaves over personnel. That is to say, the embodiment of the utility model discloses a detect structure can avoid the influence of surrounding environment to detecting the precision better, realizes leaving over personnel's accurate detection in the car, ensures leaving over personnel's personal safety in the car.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a device for detecting left-behind people in a vehicle according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a radar sensor module according to an embodiment of the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a device for detecting left-over people in a vehicle according to an embodiment of the present invention, where the device 10 includes: the system comprises a radar sensor module 11, an automobile central control module 12, an acousto-optic alarm module 13 and a remote alarm module 14.
The radar sensor module 11 includes an internal controller 111 and a radio frequency unit 112, the radio frequency unit 112 includes a first transmitting antenna 21, a first receiving antenna 22, and a second receiving antenna 23, and the first transmitting antenna 21, the first receiving antenna 22, and the second receiving antenna 23 are all connected to the internal controller 111.
The internal controller 111 is connected with the vehicle central control module 12, and the vehicle central control module 12 is respectively connected with the sound and light alarm module 13 and the remote alarm module 14.
In this embodiment, the radar sensor module 11 is configured to transmit and receive a millimeter wave radar signal, process the received millimeter wave radar signal, detect whether there is a left-over person in the vehicle, and send a detection result to the central control module 12 of the vehicle, and the central control module 12 of the vehicle controls the sound-light alarm module 13 and the remote alarm module 14 to alarm when determining that there is a left-over person. The sound and light alarm module 13 gives an alarm in the form of an indicator light and a buzzer, the remote alarm module 14 gives an alarm by sending prompt information to a mobile terminal of a user, and the automobile central control module 12 is used for realizing data interaction.
In this embodiment, the radar sensor module 11 includes an internal controller 111 and a radio frequency unit 112, the radio frequency unit 112 is configured to transmit and receive a millimeter wave radar signal, and the internal controller 111 is configured to detect whether a person left behind exists in the vehicle according to the transmitted and received millimeter wave radar signal.
In this embodiment, the radio frequency unit 112 is provided with a transmitting antenna and two receiving antennas, when transmitting and receiving millimeter wave radar signals, one transmitting antenna can be used to transmit a millimeter wave radar, the two receiving antennas simultaneously receive the reflected millimeter wave radar signals, and finally the internal controller 111 determines whether there is a left-over person according to the echo time of the two receiving antennas, so as to realize mutual correction of the two receiving antennas. After confirming that there is the personnel of leaving behind, still can calculate two distance values (leave behind the distance of personnel respectively with first receiving antenna, second receiving antenna), and the interval between two receiving antenna can calculate according to the triangle-shaped principle, leaves over personnel and place distance and angle, and then can judge the concrete position of the personnel of leaving behind in the car, realizes the location. Wherein, also can adopt a transmitting antenna and a receiving antenna's mode to carry out the detection of leaving over the personnel, the embodiment of the utility model provides a support multiple detection mode.
In this embodiment, based on the beam offset forming technology, the beam can be directed to a specific position according to the installation position and the detection range requirement, so that the beam and the horizontal direction have a certain angle, the effect of oblique installation is realized in a horizontal installation manner, and the installation space is saved.
As can be seen from the above description, on the one hand, the embodiment of the present invention can adopt one transmitting antenna and two receiving antennas for detection, and the two receiving antennas not only can realize mutual calibration, but also can accurately locate the left-over people according to the data of the two receiving antennas; on the other hand, the embodiment of the utility model provides a can adopt dual alarm mode, also leave the long-range alarm mode of other personnel by bus and remind the car personnel's on every side short-range alarm mode in back long-range warning also at other personnel by bus, can effectively ensure the personal safety who leaves over personnel. That is to say, the embodiment of the utility model discloses a detect structure can avoid the influence of surrounding environment to detecting the precision better, realizes leaving over personnel's accurate detection in the car, ensures leaving over personnel's personal safety in the car.
Optionally, please refer to fig. 1, as a specific implementation manner of the device for detecting a person left over in a vehicle according to an embodiment of the present invention, the device 10 for detecting a person left over in a vehicle may further include:
and the human-computer interaction module 15 is connected with the automobile central control module 12.
In this embodiment, the human-computer interaction module 15 is used to provide a touch interface, so that a user can conveniently set various functions of the in-vehicle left-behind person detection device and check various information.
Optionally, referring to fig. 1, as a specific implementation of the device for detecting a person left in a vehicle according to an embodiment of the present invention, the human-computer interaction module 15 may include a touch unit 151 and a display unit 152.
The touch unit 151 and the display unit 152 are connected to the central control module 12.
In this embodiment, the touch unit 151 is an input port of a user's instruction, wherein the instruction includes, but is not limited to, turning on/off of a left-behind people detection function in a vehicle, and turning on/off of an alarm function.
In the present embodiment, the display unit 152 is used to display various items of information.
Optionally, please refer to fig. 1 and fig. 2 together, as a specific implementation of the device for detecting a person left in a vehicle according to an embodiment of the present invention, the radio frequency unit 112 may further include a second transmitting antenna 24, a third receiving antenna 25, and a fourth receiving antenna 26.
The second transmitting antenna 24, the third receiving antenna 25 and the fourth receiving antenna 26 are all connected to the internal controller 111.
In this embodiment, can set up two routes transmitting antenna, four ways receiving antenna, enlarge detection range, improve the interior personnel's that leave over detection accuracy.
Optionally, please refer to fig. 1 and fig. 2 together, as a specific implementation manner of the device for detecting a person left in a vehicle according to an embodiment of the present invention, the radio frequency unit 112 further includes a first virtual subunit 27 and a second virtual subunit 28.
The first virtual sub-unit 27 is coupled to the first receiving antenna 22 and the second receiving antenna 23 respectively. The second virtual sub-unit 28 is coupled to the third receiving antenna 24 and the fourth receiving antenna 25, respectively.
In this embodiment, the first virtual sub-unit may also be coupled to the first receiving antenna 22 and the third receiving antenna 24, and the second virtual sub-unit may also be coupled to the second receiving antenna 23 and the fourth receiving antenna 25, which is not limited herein.
In this embodiment, the virtual sub-unit may be connected to the receiving antenna through a power resistor, so as to ensure the consistency of the electromagnetic environment, expand the bandwidth, and improve the antenna pattern.
Optionally, please refer to fig. 1 and fig. 2 together, as a specific implementation manner of the device for detecting a person left in a vehicle according to an embodiment of the present invention, the radar sensor module 11 further includes a Flash storage unit 113, an EEPROM storage unit 114, and an encryption unit 115.
In this embodiment, the Flash storage unit 113 is used to store program codes and part of configuration data, the EEPROM storage unit 114 is used to store installation information, software and hardware version serial numbers, fault codes, etc. of the radar sensor module 11, and the encryption unit 115 is used to encrypt the program codes to prevent malicious hacking of the program by others.
Optionally, please refer to fig. 1 and fig. 2 together, as a specific implementation manner of the device for detecting a person left in a vehicle according to an embodiment of the present invention, the radar sensor module 11 further includes a fault diagnosis unit 116.
The internal controller 111 is connected to a failure diagnosis unit 116, and the failure diagnosis unit 116 is also connected to an EEPROM storage unit 114.
In this embodiment, the fault diagnosis unit 116 is configured to detect whether there is an abnormality in each voltage of the radar sensor module 11, and store fault information in the EEPROM storage unit 114.
Optionally, please refer to fig. 1 and fig. 2 together, as a specific implementation manner of the device for detecting a person left in a vehicle according to an embodiment of the present invention, the radar sensor module 11 further includes a watchdog unit 117.
The watchdog unit 117 is connected to the internal controller 111.
In this embodiment, the watchdog unit 117 is configured to monitor the operating state of the radar sensor module 11 in real time, implement hardware timing watchdog feeding, prevent the system from running away, and implement a reset function.
Optionally, please refer to fig. 1 and fig. 2 together, as a specific implementation manner of the device for detecting a person left in a vehicle according to an embodiment of the present invention, the radar sensor module 11 further includes a CAN communication unit 118.
The internal controller 111 is connected to a CAN communication unit 118, and the CAN communication unit 118 is also connected to the vehicle central control module 12.
In this embodiment, the CAN communication unit 118 is connected and interacted with the vehicle central control module 12 through a CAN bus, and is mainly used for acquiring information such as a flameout state, a vehicle locking state, a vehicle window state, a vehicle door state and the like, reporting the information to the internal controller 111, and transmitting the information of the left-over personnel identified by the internal controller 111 to the vehicle central control module 12 through the CAN bus.
Optionally, please refer to fig. 1 and fig. 2 together, as a specific implementation manner of the device for detecting a person left in a vehicle according to an embodiment of the present invention, the radar sensor module 11 further includes a power management unit 119.
The power management unit 119 is configured to convert an external power source and supply power to the radar sensor module 11.
In this embodiment, the power management unit 119 is configured to convert an externally input power into multiple paths of voltages with different driving capabilities, and supply power to the radar sensor module 11, so as to manage the power of the radar sensor module 11, and finally achieve the purpose of saving power.
Optionally, as the embodiment of the present invention provides a specific implementation manner of leaving over personnel detection device in a car, on the basis of the above embodiment, the specific working process of leaving over personnel detection device in the car can be: the radar sensor module 11 is horizontally arranged at the rear position of the ceiling of the rear row seat of the automobile, and a main lobe beam radiated by a radar (namely transmitted by a transmitting unit) is at a deflection angle of 25 degrees and directly covers the rear row and a front blank area of the rear row. After the radar sensor module 11 is powered on, the CAN communication unit 118 receives vehicle body signals such as flameout, door closing and vehicle locking from the vehicle central control module 12, and if the vehicle is in a flameout and vehicle locking state, the radar sensor module 11 starts to work to detect whether people are left in the whole rear-row cabin in real time. Once an abnormal condition is detected, the internal controller 11 sends alarm information to the vehicle central control module 12 through the CAN communication unit 118, the vehicle central control module 12 sends remote alarm information to the vehicle owner mobile phone terminal in real time through the remote alarm module 14, and simultaneously sends out horn sounding and double-flash alarm signals through the sound-light alarm module 13.
Optionally, the device for detecting the left-behind people in the vehicle may further include a temperature detection module, and the vehicle owner may determine whether to turn on the air conditioner and the ventilation system according to the detected temperature in the vehicle.
In this embodiment, the utility model discloses a from the antenna system who takes the declination, can reach the effect of slope installation through horizontal installation, save installation space greatly, be applicable to and install the scene that the space is little between back row ceiling and the panel beating in the car, the detection precision is high, does not receive influences such as light, temperature, dust, can effectively reject the interior quiet thing interference of miscellaneous wave of car, and the live body target is detected out to the accuracy, leaves over the problem for solving children in the car and provides intelligent solution. The utility model provides a leave over personnel detection device in car has that the size is little, easy to assemble, simple structure, transmitting power are low, resolution ratio and sensitivity are high, environmental suitability is strong, multiple advantages such as multi-functional.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a leave over personnel detection device in car which characterized in that includes:
the system comprises a radar sensor module, an automobile central control module, a sound and light alarm module and a remote alarm module;
the radar sensor module comprises an internal controller and a radio frequency unit, wherein the radio frequency unit comprises a first transmitting antenna, a first receiving antenna and a second receiving antenna, and the first transmitting antenna, the first receiving antenna and the second receiving antenna are all connected with the internal controller;
the internal controller is connected with the automobile central control module, and the automobile central control module is respectively connected with the sound-light alarm module and the remote alarm module.
2. The in-vehicle left-behind person detection apparatus according to claim 1, further comprising:
and the human-computer interaction module is connected with the automobile central control module.
3. The in-vehicle left-behind person detection apparatus according to claim 2, wherein the human-computer interaction module includes a touch unit and a display unit;
the touch unit and the display unit are connected with the automobile central control module.
4. The in-vehicle left person detection apparatus according to claim 1, wherein the radio frequency unit further includes a second transmitting antenna, a third receiving antenna, and a fourth receiving antenna;
and the second transmitting antenna, the third receiving antenna and the fourth receiving antenna are all connected with the internal controller.
5. The in-vehicle left person detection apparatus according to claim 4, wherein the radio frequency unit further includes a first virtual sub-unit and a second virtual sub-unit;
the first virtual subunit is respectively coupled with the first receiving antenna and the second receiving antenna; the second virtual sub-unit is coupled with the third receiving antenna and the fourth receiving antenna respectively.
6. The in-vehicle left person detection apparatus according to claim 1, wherein the radar sensor module further includes a Flash storage unit, an EEPROM storage unit, an encryption unit;
the Flash storage unit, the EEPROM storage unit and the encryption unit are all connected with an internal controller, and the encryption unit is also respectively connected with the Flash storage unit and the EEPROM storage unit.
7. The in-vehicle left behind person detection apparatus according to claim 6, wherein the radar sensor module further includes a fault diagnosis unit;
the internal controller is connected with the fault diagnosis unit, and the fault diagnosis unit is also connected with the EEPROM storage unit.
8. The in-vehicle left behind person detection apparatus according to claim 1, wherein the radar sensor module further includes a watchdog unit;
the watchdog unit is connected with the internal controller.
9. The in-vehicle left person detection apparatus according to claim 1, wherein the radar sensor module further includes a CAN communication unit;
the internal controller is connected with the CAN communication unit, and the CAN communication unit is also connected with the automobile central control module.
10. The in-vehicle left behind person detection apparatus according to claim 1, wherein the radar sensor module further includes a power management unit;
and the power supply management unit is used for converting an external power supply and supplying power to the radar sensor module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021813723.0U CN213338019U (en) | 2020-08-26 | 2020-08-26 | Device for detecting left-over personnel in vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021813723.0U CN213338019U (en) | 2020-08-26 | 2020-08-26 | Device for detecting left-over personnel in vehicle |
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| Publication Number | Publication Date |
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| CN213338019U true CN213338019U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021813723.0U Active CN213338019U (en) | 2020-08-26 | 2020-08-26 | Device for detecting left-over personnel in vehicle |
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| CN (1) | CN213338019U (en) |
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- 2020-08-26 CN CN202021813723.0U patent/CN213338019U/en active Active
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