CN111137237A - School bus and device for preventing children from leaving behind - Google Patents
School bus and device for preventing children from leaving behind Download PDFInfo
- Publication number
- CN111137237A CN111137237A CN201811301649.1A CN201811301649A CN111137237A CN 111137237 A CN111137237 A CN 111137237A CN 201811301649 A CN201811301649 A CN 201811301649A CN 111137237 A CN111137237 A CN 111137237A
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- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000004804 winding Methods 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000002265 prevention Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 abstract description 18
- 238000009434 installation Methods 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 206010011469 Crying Diseases 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/0153—Passenger detection systems using field detection presence sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01542—Passenger detection systems detecting passenger motion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention relates to a school bus and a device for preventing children from being left, which comprises a slide rail arranged at the top inside the school bus, wherein a slide platform is arranged on the slide rail in a guiding and moving way, and a radar sensor for detecting the movement speed of a target is arranged on the slide platform; the driving mechanism is used for driving the sliding platform to move along the sliding rail; the radar sensor system also comprises a control module, wherein the control module is in control connection with the driving mechanism and used for collecting target data sensed by the radar sensor. The micro moving target in the radar visual field range is detected through the radar sensor, so that whether children are left in the car or not is detected, and the detection accuracy is improved; moreover, the radar sensor moves back and forth on the roof along the sliding rail under the driving of the sliding platform, so that the large-range detection of a single sensor is realized, and the detection effectiveness is improved. And the device reduces the number of sensors and reduces the cost and the complexity of sensor arrangement and installation on the premise of expanding the detection range.
Description
Technical Field
The invention belongs to the technical field of school buses, and particularly relates to a school bus and a device for preventing children from leaving behind.
Background
In recent years, as school buses are widely used, safety hazards exist while safety and convenience of children are improved, wherein the most serious and easy problem is children leaving, and in recent years, many events of children death caused by children leaving have occurred, and strong social attention is attracted.
The existing method for preventing children from being left behind is mainly used for avoiding children from being left behind by strengthening ideological education and formulating corresponding management measures or adopting some forced manual reinspection measures. For example, after the driver turns off the fire, the system automatically prompts the driver to check the carriage, and a switch for turning off the system reminder is positioned at the tail of the vehicle, so that the driver or an onboard manager can patrol the vehicle while going to the tail of the vehicle to turn off the system reminder. However, the manual reinspection may cause accidents due to negligence or paralysis of the patrolmen, and has safety hazards.
In order to prevent children from being left in the school bus, a sensor is added to the school bus to detect the situation in the school bus. For example, chinese patent application publication No. CN105809890A discloses a method for detecting a child left over in school bus safety, which combines three sensor signals, i.e., infrared, video, and audio, to detect and determine whether a child left over exists in the school bus. Besides the sounds of walking and crying of children, other noises often appear in the school bus, so that the situation of false alarm caused by the device corresponding to the method needing to combine the signals of the audio sensor is easy to appear.
Disclosure of Invention
The invention aims to provide a school bus and a child leaving prevention device, which are used for solving the problem of high false alarm rate of the child leaving prevention device in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the invention provides a child leaving prevention device which comprises a slide rail arranged at the top inside a school bus, wherein a slide platform is arranged on the slide rail in a guiding and moving mode, and a radar sensor for detecting the movement speed of a target is arranged on the slide platform; the driving mechanism is used for driving the sliding platform to move along the sliding rail; the radar sensor system further comprises a control module, wherein the control module is in control connection with the driving mechanism and used for collecting target data sensed by the radar sensor.
The invention has the beneficial effects that:
according to the school bus and the child leaving prevention device, the radar sensor is used for detecting the tiny moving target in the radar visual field range, so that whether children are left in the bus or not is detected, and the detection accuracy is improved; moreover, the radar sensor moves back and forth on the roof along the sliding rail under the driving of the sliding platform, so that the large-range detection of a single sensor is realized, and the detection effectiveness is improved. The device reduces the number of sensors and reduces the cost and the complexity of sensor arrangement and installation on the premise of expanding the detection range.
Furthermore, in order to remind workers in time, the intelligent alarm further comprises an alarm module, and the control module is in control connection with the alarm module.
Furthermore, in order to realize free and reliable movement of the radar sensor, a walking wheel is installed on the sliding platform, the walking wheel is guided by the sliding rail to be rolled and assembled, a driving mechanism is installed on the sliding platform, and the driving mechanism is in transmission connection with the walking wheel.
Further, in order to realize free and reliable movement of the radar sensor, the sliding platform is a cylinder body, and the sliding platform is sleeved on the sliding rail.
Furthermore, in order to realize safe and reliable signal transmission, the sliding platform is connected with a cable for transmitting power signals and control signals, one end of the cable is fixedly connected to the sliding platform, and the other end of the cable is connected with a school bus body through a winding module for winding the cable.
Furthermore, in order to realize the passive walking of the sliding platform, the driving mechanism is a first driving unit and a second driving unit which are arranged on the body of the school bus and respectively positioned on two sides of the sliding rail, the first driving unit is in transmission connection with the first winding unit, the second driving unit is in transmission connection with the second winding unit, and the first winding unit and the second winding unit are connected with the sliding platform through corresponding pull ropes.
Further, in order to realize safe and reliable signal transmission, a cable for transmitting power signals and control signals is further arranged in the pull rope of the first winding unit.
Further, for accurate measurement of left-behind children, the radar sensor is a doppler radar sensor.
The invention also provides a school bus, which comprises a school bus body and the child leaving prevention device arranged on the top inside the school bus body. The school bus detects the tiny moving target in the radar vision range through the radar sensor, so that whether children are left in the school bus or not is detected, and the detection accuracy is improved; moreover, the radar sensor moves back and forth on the roof along the sliding rail under the driving of the sliding platform, so that the large-range detection of a single sensor is realized, and the detection effectiveness is improved. On the premise of expanding the detection range, the school bus reduces the number of sensors and reduces the cost and the complexity of sensor arrangement and installation.
Drawings
FIG. 1 is a schematic structural view of a child resistant device according to embodiment 1 of the child resistant device of the present invention;
FIG. 2 is a flow chart of a detection method of embodiment 1 of the child-resistant device of the present invention;
FIG. 3 is a schematic view of a sliding platform of embodiment 2 of the child resistance device of the present invention;
FIG. 4 is a schematic view of a sliding platform of embodiment 3 of the child resistance device of the present invention;
the system comprises a sliding rail 11, a sliding platform 12, a radar sensor 13, a control module 14, an alarm module 15 and a cable 16, wherein the sliding rail 12 is a sliding platform; 21-sliding rail, 22-sliding platform, 23-walking wheel, 24-cable and 25-winding module; 31-slide rail, 32-slide platform, 33-pulley, 34-pulley, 35-pull rope and 36-pull rope.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
Child resistant leave-behind device example 1
The device sets up at the inside top of school bus, carries out all-round detection to the seat to judge whether inside children or the child of leaving over of school bus.
As shown in FIG. 1, the device comprises a slide rail 11 fixedly arranged at the top of the interior of the school bus, and the length of the slide rail 11 can be equal to the length of the vehicle and is arranged at the center of the width of the vehicle.
A sliding platform 12 is movably guided on the sliding rail 11, a driving mechanism (not shown in fig. 1, and the driving mechanism may be a motor) is disposed on the sliding platform 12, and the sliding platform 12 can move along the sliding rail 11 under the driving of the driving mechanism. In this embodiment, the sliding platform 12 is a cylinder, and the sliding platform 12 is sleeved on the sliding rail 11. To enable the sliding platform 12 to be movable along the sliding track 11, a travelling wheel (not shown in fig. 1) may be provided between the sliding platform 12 and the sliding track 11. The sliding platform 12 is provided with a radar sensor 13, and the radar sensor 13 is driven by the sliding platform 12 to freely move on the roof along the sliding rail 11. Moreover, in order to enable the radar sensor 13 to detect the seat conditions of the left and right sides, a pan/tilt head (not shown in fig. 1) may be disposed between the sliding platform 12 and the radar sensor 13, and the pan/tilt head may drive the radar sensor 13 to move in multiple angles.
The arrangement of the slide rail 11 and the slide platform 12 allows the radar sensor 13 to be moved to the upper side of different seat positions according to requirements (since one slide rail is arranged in the embodiment, and the slide rail is horizontal, the upper side may not be directly above), and the condition of each seat is detected by allowing the angle of the radar sensor 13 to face the seat through the pan-tilt. Therefore, the condition of the inside of the whole school bus can be detected by one radar sensor, the number of the sensors is reduced, and the radar sensor has no view dead angle; meanwhile, the detection effectiveness is improved.
The radar sensor 13 may be a doppler radar sensor that detects whether or not a moving object exists in a field of view based on the doppler effect principle, and detects information such as a moving speed of the moving object with respect to the radar. By using the principle, whether children or girls remain in the vehicle can be detected.
The device also comprises a control module 14 and an alarm module 15. The control module 14 controls the connection driving mechanism through the cable 16, so that the sliding platform 12 can freely move back and forth along the sliding rail 11. The cable 16 here is a cable that transmits power signals and control signals. Meanwhile, the control module 14 collects target data sensed by the radar sensor 13 through the cable 16. The alarm module 15 may be an acoustic alarm module, an optical alarm module, or a combination thereof. The control module 14 can judge whether children remain in the car according to the detection result of the radar sensor 13, and when finding that children remain in the car, the control alarm module 15 works to remind workers. The control module 14 is also in control connection with the cradle head to control the cradle head to drive the radar sensor 13 to rotate according to a set angle.
Based on the above described apparatus, the apparatus may operate according to the flow chart shown in fig. 2.
After the system detects a fire-off signal, the control module 14 controls the driving mechanism, so that the sliding platform 12 drives the radar sensor 13 to move along the sliding rail 11 and stop at a place where the seat condition can be accurately detected according to a preset position; the radar sensor 13 detects whether a moving target exists in the visual field range based on the Doppler effect principle, and if so, the position of the moment is recorded until a complete carriage is detected; after the first round of detection is finished, if a moving target exists, the sliding platform 12 is controlled to move to the position recorded before for recheck, and if the moving target still exists in the recheck, the alarm module 15 is controlled to work until the alarm is relieved by the staff.
In addition, if the radar sensor 13 detects that the speed of the moving target is greater than a certain threshold value, the alarm module 15 is directly controlled to work, and an alarm is started.
Child resistant leave-behind device example 2
In the embodiment 1, the sliding platform 12 is moved along the sliding rail 11, so that the cable 16 is in a loose state in a certain moving direction of the sliding platform 12, not only occupying space, but also being likely to be twisted together, causing damage to the cable or equipment. To solve this problem, a sliding platform structure as shown in fig. 3 is provided.
As shown in fig. 3, the sliding platform 22 is similar to a trolley mechanism. A sliding platform 22 is arranged on the sliding rail 21 for guiding and moving, and the sliding platform 22 is driven by a first driving mechanism (not shown in fig. 3) installed on the sliding platform 22 to move forward. In the figure, the left direction is defined as the direction in which the sliding platform moves forward, and the right direction is defined as the direction in which the sliding platform moves backward. A walking wheel 23 is mounted on the sliding platform 22, the walking wheel 23 and the sliding rail 21 are assembled in a guiding rolling mode, and the first driving mechanism is in transmission connection with the walking wheel 23, so that the sliding platform 22 moves forwards along the sliding rail 21.
The sliding platform 22 is connected with a cable 24 for transmitting power signals and control signals to power the radar sensor, the pan and tilt head, etc. When the sliding platform 22 moves backward, the cable 24 is stored by the winding module 25.
As shown in fig. 3, the winding module 25 is driven by the second driving mechanism, and the winding module 25 controls the sliding platform 22 to move backwards through the cable 24. After the sliding platform 22 moves forward along the sliding rail 21 and reaches the front limit, or receives the command from the control module, the winding module 25 operates to pull back the cable 24, which causes the sliding platform 22 to move backward along the sliding rail 21. The cable 24 in this form not only pulls the sliding platform 22 to move, but also transmits electricity.
The rest of the modules, for example, the control module and the alarm module, may be set as in embodiment 1, and are not described herein again.
Child resistant leave-behind device example 3
As shown in fig. 4, the sliding platform structure is a non-self-propelled sliding platform. In the figure, the left direction is defined as the direction in which the sliding platform moves forward, and the right direction is defined as the direction in which the sliding platform moves backward.
The driving mechanism of the sliding platform 32 comprises two pulleys 33 and 34, the pulleys 33 and 34 are driven by a first driving unit and a second driving unit which are arranged on the body of the school bus respectively, and the pulleys 33 and 34 are in transmission connection with the sliding platform 32 through pull ropes 35 and 36 respectively. The pull cords 35, 36 in this embodiment are provided with cables which can transmit power signals and control signals. The sliding platform 32 passively moves forwards or backwards on the sliding rail 31 under the pulling of the pulleys 33 and 34; meanwhile, power can be supplied to a radar sensor, a pan tilt and the like connected with the sliding platform 32 through the pull ropes 35 and 36.
In an embodiment, the sliding platform 32 may or may not have a traveling wheel.
The rest of the modules, for example, the control module and the alarm module, may be set as in embodiment 1, and are not described herein again.
Child resistant leave-behind device example 4
In embodiment 1, the slide rail is a horizontally disposed slide rail, and in order to accurately determine the condition of each seat, a pan/tilt head needs to be added to control and change the angle of the radar sensor.
Different from the embodiment 1, the slide rail in this embodiment is a U-shaped slide rail, and includes two parallel linear slide rail portions and one curved slide rail portion. Because the seat distribution mode in the general school bus is the left column part and the right column part of the vehicle, the two column parts are provided with the passage. So in this embodiment, two parallel linear slide rail parts set up respectively directly over two inside seats of school bus, and at this moment, need not to set up the cloud platform between sliding platform and the radar sensor, only need in advance with the angle adjustment of radar sensor for facing directly under can.
See example 1 for the rest.
School bus embodiment
This embodiment provides a school bus, including the school bus automobile body to and set up the device is left over at the inside top of school bus automobile body to children of preventing, realize the all-round detection to in the car through the device, with the circumstances of still having children to remain in the car to appear under the circumstances of preventing not having staff in the school bus, also be convenient for in time make remedial measure when discovering this circumstances. Specific structures of the child-resistant device are shown in child-resistant device embodiment 1 to child-resistant device embodiment 4, which are not described herein again.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (9)
1. A device for preventing children from being left over is characterized by comprising a slide rail arranged at the top inside a school bus, wherein a slide platform is arranged on the slide rail in a guiding and moving mode, and a radar sensor for detecting the movement speed of a target is arranged on the slide platform; the driving mechanism is used for driving the sliding platform to move along the sliding rail; the radar sensor system further comprises a control module, wherein the control module is in control connection with the driving mechanism and used for collecting target data sensed by the radar sensor.
2. The child resistant device of claim 1, further comprising an alarm module, wherein the control module is in control connection with the alarm module.
3. The child carry-over preventing device according to claim 1, wherein a walking wheel is mounted on the sliding platform, the walking wheel is guided and rolled with the sliding rail, the driving mechanism is mounted on the sliding platform, and the driving mechanism is in transmission connection with the walking wheel.
4. The child resistant device of claim 3 wherein said slide platform is a barrel, said slide platform being nested on said slide rail.
5. The child carryover prevention apparatus of claim 3, wherein the sliding platform is connected with a cable for transmitting power signals and control signals, one end of the cable is fixedly connected to the sliding platform, and the other end of the cable is connected with a school bus body through a winding module for winding the cable.
6. The child carryover prevention apparatus according to claim 1, wherein the driving mechanism is a first driving unit and a second driving unit which are mounted on the body of the school bus and located on two sides of the slide rail respectively, the first driving unit is in transmission connection with the first winding unit, the second driving unit is in transmission connection with the second winding unit, and the first winding unit and the second winding unit are connected with the sliding platform through corresponding pull ropes.
7. The child resistant device of claim 6 wherein a cable for transmitting power and control signals is further provided in the pull cord of the first winding unit.
8. The child resistant device of claim 1, wherein the radar sensor is a doppler radar sensor.
9. A school bus comprising a school bus body and further comprising the child-retention prevention device according to any one of claims 1 to 8 disposed at the top of the interior of the school bus body.
Priority Applications (1)
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CN201811301649.1A CN111137237A (en) | 2018-11-02 | 2018-11-02 | School bus and device for preventing children from leaving behind |
Applications Claiming Priority (1)
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CN201811301649.1A CN111137237A (en) | 2018-11-02 | 2018-11-02 | School bus and device for preventing children from leaving behind |
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CN111137237A true CN111137237A (en) | 2020-05-12 |
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CN201811301649.1A Pending CN111137237A (en) | 2018-11-02 | 2018-11-02 | School bus and device for preventing children from leaving behind |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114708700A (en) * | 2022-03-30 | 2022-07-05 | 古利东 | Detection and leaving-over prevention alarm system in vehicle |
CN115257554A (en) * | 2022-06-14 | 2022-11-01 | 北京航星传动科技有限公司 | Sensor position control device for vehicle, method, computer device, and medium |
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CN205833769U (en) * | 2016-08-01 | 2016-12-28 | 胡再昌 | The cleaning device of central air-conditioning ventilation duct |
CN107650854A (en) * | 2017-09-19 | 2018-02-02 | 昆明理工大学 | A kind of school bus child-resistant based on pyroelectric infrared sensor omits device |
CN209320896U (en) * | 2018-11-02 | 2019-08-30 | 郑州宇通客车股份有限公司 | School bus and child-resistant legacy device |
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CN203615548U (en) * | 2013-12-26 | 2014-05-28 | 山东钢铁集团有限公司 | Dew-point control device for water-cooled machine room |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114708700A (en) * | 2022-03-30 | 2022-07-05 | 古利东 | Detection and leaving-over prevention alarm system in vehicle |
CN114708700B (en) * | 2022-03-30 | 2023-05-16 | 古利东 | In-car detection anti-carry-over alarm system |
CN115257554A (en) * | 2022-06-14 | 2022-11-01 | 北京航星传动科技有限公司 | Sensor position control device for vehicle, method, computer device, and medium |
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