CN110712617B - Safety belt unbuckling reminding system - Google Patents
Safety belt unbuckling reminding system Download PDFInfo
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- CN110712617B CN110712617B CN201910938508.9A CN201910938508A CN110712617B CN 110712617 B CN110712617 B CN 110712617B CN 201910938508 A CN201910938508 A CN 201910938508A CN 110712617 B CN110712617 B CN 110712617B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
- B60R2022/4808—Sensing means arrangements therefor
- B60R2022/4816—Sensing means arrangements therefor for sensing locking of buckle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
- B60R2022/4808—Sensing means arrangements therefor
- B60R2022/4858—Sensing means arrangements therefor for sensing pressure on seat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
- B60R2022/4866—Displaying or indicating arrangements thereof
Abstract
The invention provides a safety belt unfastening reminding system which comprises a first detection module, a second detection module and a warning module, wherein the first detection module is used for detecting personnel information in a vehicle after a door of the vehicle is closed; the second detection module is used for detecting the locking state of a safety belt at a seat in the vehicle when the ignition of the vehicle is finished and the vehicle speed is within a preset speed interval; the control center module is used for forming a reminding instruction according to the information of the first detection module and the second detection module to control the reminding module to carry out reminding operation; and the reminding module is used for carrying out safety belt information reminding according to the information of the control center module. The intelligent monitoring and alarming device can realize the intelligent monitoring and alarming function when the seat is not fastened with a safety belt.
Description
Technical Field
The invention relates to the technical field of traffic, in particular to a safety belt unfastening reminding system.
Background
The conventional safety belt unfastening reminding system can detect whether a driver seat or a passenger seat wears a safety belt or not, and if the driver seat or the passenger seat does not wear the safety belt, the vehicle can give an alarm. However, most of the vehicle safety belts are not fastened and only stay at the level of meeting the regulations, and the strong requirement that the passengers fasten the safety belts is not really achieved. The correct use of the vehicle safety belt plays a great role in saving the lives of passengers in the event of an accident.
It has been found through extensive search that some typical prior art, such as patent CN1264709C, provides a belting reminder which enables a screen to display warning contents intended that a seat belt should be fastened when the ignition switch is turned on and the belting detection means detects that the seat belt is not fastened. Or as in patent CN109927603A, which focuses on having a seat back and a seat base, and a biosensor, in combination with biotechnology to detect physiological characteristics of a seat occupant. As another example, CN105946787A, a typical case discloses a vehicle seat belt reminder, which can remind passengers and drivers to wear seat belts in time, and when the passengers do not wear seat belts within a set time after receiving the reminder, send local information to a remote control center.
Therefore, how to accurately judge whether the safety belt is fastened in traffic work and remind passengers, and many practical problems to be treated urgently in practical application of the safety belt fastening reminding device have unreported specific solutions.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a reminding system for the unbuckled safety belt, which has the following specific technical scheme:
a seat belt unfastening reminder system comprising: a first detection module, a second detection module, a control center module and a reminding module, wherein,
the first detection module is used for detecting and acquiring passenger information when passengers pass through a vehicle door;
the second detection module is used for detecting and acquiring a safety belt locking state of a sitting seat in the vehicle and acquiring the current value of a series circuit which is connected with all seats in series when the ignition of the vehicle is finished and the vehicle speed is within a preset starting speed interval, detecting and acquiring a safety belt voltage drop value and acquiring a pre-safety belt voltage drop value according to the passenger information when the safety belt locking of the sitting seat is in a locking state, and sending the safety belt locking state, the safety belt voltage drop value and the pre-safety belt voltage drop value to the control center module;
the control center module forms a reminding instruction according to the information of the first detection module and the second detection module to control the reminding module to carry out reminding operation;
the reminding module is used for reminding safety belt information according to the information of the control center module;
the safety belt comprises a safety belt body, a safety belt body and a safety belt, wherein the safety belt body is embedded with a safety belt, the safety belt body is embedded with a safety belt body, and the safety belt body is embedded with a conductive material with uniform size.
Optionally, the first detection module includes a person detection unit and a seat information feedback unit, wherein,
the passenger detection unit is used for detecting and acquiring the weight information, the height information and the image information of passengers passing through the vehicle door when the passengers pass through the vehicle door, and carrying out unique mark storage on the passenger information of the passengers passing through the vehicle door;
the seat information feedback unit detects and acquires the sitting condition of the passenger according to the image information of the passenger, and sends information comprising the seat information feedback unit number and the sitting condition of the passenger to the control center module and the second detection module.
Optionally, the second detecting module includes a latch detecting unit, a current detecting unit, and a voltage drop detecting unit, wherein,
the locking detection unit is used for detecting and judging whether the vehicle is ignited or not, acquiring the current vehicle speed when the vehicle is ignited and judging whether the current vehicle speed is in a preset starting speed interval or not, and detecting whether the locking of the safety belt at the seat in the vehicle is in a locking state or not according to the seating condition of the passengers and the image information;
the current detection unit is used for detecting the current value of a series circuit which is connected with all seats in series when the locking detection unit detects that the seat belt at the position of a sitting seat in the vehicle is locked;
and the voltage drop detection unit is used for acquiring a pre-safety belt voltage drop value of the passenger according to the weight information, the height information and the image information, and acquiring a safety belt voltage drop value of a sitting position of the passenger when the locking detection unit detects that the safety belt lock of the sitting position in the vehicle is in a locking state.
Optionally, when the latch detecting unit detects that the seat belt latch at the seat in the vehicle is in the latched state, the method further includes:
the seat information feedback unit is connected with the safety belt in parallel to form short-circuited information, and sends the information comprising the short-circuited information and the number of the seat information feedback unit corresponding to the short-circuited information one by one to the control center module.
Optionally, forming a reminding instruction according to the information of the first detection module and the second detection module to control the reminding module to perform a reminding operation includes:
after the vehicle door is closed, the control center module calculates the number of personnel in the vehicle according to the unique mark of the personnel information in the vehicle detected and obtained by the personnel detection unit, and obtains a preset series circuit current value corresponding to the number of the personnel; and the current detection unit is used for detecting the current value of the series circuit which is connected with all the seats in series and judging whether the current value is less than the current value of the preset series circuit corresponding to the number of the people or not,
if the current value is smaller than the preset series circuit current value corresponding to the number of the passengers, acquiring information of a seat information feedback unit, analyzing to obtain a seat information feedback unit number and a seating condition of the passengers, and acquiring a seat information feedback unit number which does not feed back the short-circuited information and a seat information feedback unit number which feeds back the short-circuited information according to the seat information feedback unit number and the seating condition of the passengers;
forming a reminding instruction according to the serial number of the seat information feedback unit which does not feed back the short-circuited information, and sending the reminding instruction to the reminding module; analyzing the information sent by the voltage drop detection unit to obtain a safety belt voltage drop value and a pre-safety belt voltage drop value corresponding to the passenger according to the seat information feedback unit number and the image information, performing difference operation on the safety belt voltage drop value and the pre-safety belt voltage drop value to obtain a safety belt voltage drop difference value, if the safety belt voltage drop difference value falls within a preset safety belt voltage drop difference value error interval, sending information including that the safety belt is fastened correctly to the reminding module, otherwise, sending information including that the safety belt is not fastened correctly to the reminding module;
if the current value is larger than or equal to the current value of a preset series circuit corresponding to the number of the passengers, polling detection is carried out to obtain information of the first detection module and the second detection module, information sent by the voltage drop detection unit is analyzed to obtain a seat belt voltage drop value and a preset seat belt voltage drop value corresponding to the passengers according to the seat information feedback unit number fed back with the short-circuited information and the image information, difference operation is carried out on the seat belt voltage drop value and the preset seat belt voltage drop value to obtain a seat belt voltage drop difference value, if the seat belt voltage drop difference value falls within a preset seat belt voltage drop difference value error interval, information including that the passengers have fastened the seat belts correctly is sent to the reminding module, and if not, information including that the passengers have fastened the seat belts incorrectly is sent to the reminding module.
Optionally, the reminding module includes: a vehicle speed detection unit, a first reminding unit and a second reminding unit, wherein,
the vehicle speed detection unit is used for detecting whether the vehicle speed is greater than a first preset value or not when receiving a reminding instruction sent by the control center module, and if the vehicle speed is greater than the first preset value, continuously detecting whether the vehicle reaches a preset alarm condition or not;
the reminding unit is used for responding to a voice reminding mode to remind passengers of seats corresponding to the seat information feedback unit number which does not feed back the short-circuited information when the speed of the vehicle reaches the preset alarm condition;
and the reminding second unit is used for responding and starting a reminding mode comprising voice, vibration and a warning lamp to remind the passenger of the seat corresponding to the seat information feedback unit number which does not feed back the short-circuit information when the vehicle speed of the vehicle does not reach the preset alarm condition.
Optionally, the reminding unit is further configured to respond to a voice reminding mode when the vehicle speed of the vehicle reaches the preset alarm condition, and remind a passenger at a seat where the seat information feedback unit that has fed back the short-circuited information is numbered and the seat belt is not fastened correctly; and the second reminding unit is also used for responding to and starting a reminding mode comprising voice, vibration and a warning lamp when the speed of the vehicle does not reach the preset alarm condition, and reminding the passengers who have fed back the serial numbers of the seat information feedback units with the short-circuit information and are not wearing the seat belt correctly.
The beneficial effects obtained by the invention comprise: 1. the passenger in the car is effectively prevented from incorrectly using the safety belt; 2. the safety awareness of passengers is gradually improved, and the intelligent monitoring and alarming function of the seat without a safety belt is realized; 3. the statistical analysis of unbelted belts and the analysis of the seating rate of the vehicle are realized, and whether drivers and members on the vehicle wear the belts or not is supervised.
Drawings
The present invention will be further understood from the following description taken in conjunction with the accompanying drawings, the emphasis instead being placed upon illustrating the principles of the embodiments.
FIG. 1 is a schematic structural diagram of a seat belt unfastening reminder system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another seat belt unfastening reminding system according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of another seat belt unfastening reminding system according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a prior art CN105946787A car seat belt reminder.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms described above will be understood by those of ordinary skill in the art according to the specific circumstances.
The invention relates to a safety belt unfastening reminding system, which is based on the following embodiments shown in figures 1-3:
the first embodiment is as follows:
the present embodiment provides a seat belt unfastening reminding system, including: the system comprises a first detection module, a second detection module, a control center module and a reminding module, wherein the first detection module is used for detecting and acquiring passenger information when passengers pass through a vehicle door; the second detection module is used for detecting and acquiring a safety belt locking state of a sitting seat in the vehicle and acquiring the current value of a series circuit which is connected with all seats in series when the ignition of the vehicle is finished and the vehicle speed is within a preset starting speed interval, detecting and acquiring a safety belt voltage drop value and acquiring a pre-safety belt voltage drop value according to the passenger information when the safety belt locking of the sitting seat is in a locking state, and sending the safety belt locking state, the safety belt voltage drop value and the pre-safety belt voltage drop value to the control center module; the control center module forms a reminding instruction according to the information of the first detection module and the second detection module to control the reminding module to carry out reminding operation; the reminding module is used for reminding safety belt information according to the information of the control center module; the safety belt comprises a safety belt body, a safety belt body and a safety belt, wherein the safety belt body is embedded with a safety belt, the safety belt body is embedded with a safety belt body, and the safety belt body is embedded with a conductive material with uniform size.
Specifically, the first detection module comprises a personnel detection unit and a seat information feedback unit, wherein,
the passenger detection unit is used for detecting and acquiring the weight information, the height information and the image information of passengers passing through the vehicle door when the passengers pass through the vehicle door, and carrying out unique mark storage on the passenger information of the passengers passing through the vehicle door;
the seat information feedback unit detects and acquires the sitting condition of the passenger according to the image information of the passenger, and sends information comprising the seat information feedback unit number and the sitting condition of the passenger to the control center module and the second detection module.
Specifically, the second detection module comprises a locking detection unit, a current detection unit and a voltage drop detection unit, wherein,
the locking detection unit is used for detecting and judging whether the vehicle is ignited or not, acquiring the current vehicle speed when the vehicle is ignited and judging whether the current vehicle speed is in a preset starting speed interval or not, and detecting whether the locking of the safety belt at the seat in the vehicle is in a locking state or not according to the seating condition of the passengers and the image information;
the current detection unit is used for detecting the current value of a series circuit which is connected with all seats in series when the locking detection unit detects that the seat belt at the position of a sitting seat in the vehicle is locked;
and the voltage drop detection unit is used for acquiring a pre-safety belt voltage drop value of the passenger according to the weight information, the height information and the image information, and acquiring a safety belt voltage drop value of a sitting position of the passenger when the locking detection unit detects that the safety belt lock of the sitting position in the vehicle is in a locking state.
Specifically, when the lock detection unit detects that the seat belt lock at the seat in the vehicle is in the locked state, the vehicle seat further includes:
the seat information feedback unit is connected with the safety belt in parallel to form short-circuited information, and sends the information comprising the short-circuited information and the number of the seat information feedback unit corresponding to the short-circuited information one by one to the control center module.
Specifically, according to the information of the first detection module and the second detection module, a reminding instruction is formed to control the reminding module to carry out reminding operation, including:
after the vehicle door is closed, the control center module calculates the number of personnel in the vehicle according to the unique mark of the personnel information in the vehicle detected and obtained by the personnel detection unit, and obtains a preset series circuit current value corresponding to the number of the personnel; and acquiring the current value of a series circuit which is obtained by detecting all the seats connected in series by the current detection unit, and judging whether the current value is smaller than the current value of a preset series circuit corresponding to the number of the people.
If the current value is smaller than the preset series circuit current value corresponding to the number of the passengers, acquiring information of a seat information feedback unit, analyzing to obtain a seat information feedback unit number and a seating condition of the passengers, and acquiring a seat information feedback unit number which does not feed back the short-circuited information and a seat information feedback unit number which feeds back the short-circuited information according to the seat information feedback unit number and the seating condition of the passengers;
forming a reminding instruction according to the serial number of the seat information feedback unit which does not feed back the short-circuited information, and sending the reminding instruction to the reminding module; analyzing the information sent by the voltage drop detection unit to obtain a safety belt voltage drop value and a pre-safety belt voltage drop value corresponding to the passenger according to the seat information feedback unit number and the image information, performing difference operation on the safety belt voltage drop value and the pre-safety belt voltage drop value to obtain a safety belt voltage drop difference value, if the safety belt voltage drop difference value falls within a preset safety belt voltage drop difference value error interval, sending information including that the safety belt is fastened correctly to the reminding module, otherwise, sending information including that the safety belt is not fastened correctly to the reminding module;
if the current value is larger than or equal to the current value of a preset series circuit corresponding to the number of the passengers, polling detection is carried out to obtain information of the first detection module and the second detection module, information sent by the voltage drop detection unit is analyzed to obtain a seat belt voltage drop value and a preset seat belt voltage drop value corresponding to the passengers according to the seat information feedback unit number fed back with the short-circuited information and the image information, difference operation is carried out on the seat belt voltage drop value and the preset seat belt voltage drop value to obtain a seat belt voltage drop difference value, if the seat belt voltage drop difference value falls within a preset seat belt voltage drop difference value error interval, information including that the passengers have fastened the seat belts correctly is sent to the reminding module, and if not, information including that the passengers have fastened the seat belts incorrectly is sent to the reminding module.
Specifically, the reminding module comprises: a vehicle speed detection unit, a first reminding unit and a second reminding unit, wherein,
the vehicle speed detection unit is used for detecting whether the vehicle speed is greater than a first preset value or not when receiving a reminding instruction sent by the control center module, and if the vehicle speed is greater than the first preset value, continuously detecting whether the vehicle reaches a preset alarm condition or not;
the reminding unit is used for responding to a voice reminding mode to remind passengers of seats corresponding to the seat information feedback unit number which does not feed back the short-circuited information when the speed of the vehicle reaches the preset alarm condition;
and the reminding second unit is used for responding and starting a reminding mode comprising voice, vibration and a warning lamp to remind the passenger of the seat corresponding to the seat information feedback unit number which does not feed back the short-circuit information when the vehicle speed of the vehicle does not reach the preset alarm condition.
In addition, the reminding unit is also used for responding to the starting of a voice reminding mode when the speed of the vehicle reaches the preset alarm condition, and reminding the passengers at the seats which are numbered by the seat information feedback unit and do not fasten the safety belt correctly; and the second reminding unit is also used for responding to and starting a reminding mode comprising voice, vibration and a warning lamp when the speed of the vehicle does not reach the preset alarm condition, and reminding the passengers who have fed back the serial numbers of the seat information feedback units with the short-circuit information and are not wearing the seat belt correctly.
Example two:
the present embodiment provides a seat belt unfastening reminding system, including: the system comprises a first detection module, a second detection module, a control center module and a reminding module, wherein the first detection module is used for detecting and acquiring passenger information when passengers pass through a vehicle door and after the vehicle door is closed; the second detection module is used for detecting and acquiring a safety belt locking state of a sitting seat in the vehicle and acquiring a current value of a series circuit which is connected with all seats in series when the ignition of the vehicle is finished and the vehicle speed is within a preset speed interval, detecting and acquiring a safety belt voltage drop value and acquiring a pre-safety belt voltage drop value according to the passenger information when the safety belt locking of the sitting seat is in a locking state, and sending the safety belt locking state, the safety belt voltage drop value and the pre-safety belt voltage drop value to the control center module; the control center module forms a reminding instruction according to the information of the first detection module and the second detection module to control the reminding module to carry out reminding operation; and the reminding module is used for carrying out safety belt information reminding according to the information of the control center module. The passenger information includes weight information, height information and image information, the safety belt is embedded with the conducting material of uniform size, just conducting material electricity connects in the tapered end of safety belt, and the seat belt subassembly includes the support piece spaced apart with the seat belt coiler, and the safety belt can move for support piece, conducting material can with support piece touches. One end of the power supply is respectively connected with the lock seat matched with the lock head on the seat, the other end of the power supply is connected with the supporting piece, and when the lock head of the safety belt is matched with the lock seat and is in a locking state, the circuit is conducted. The power supply adopts a power supply which is safe to human bodies and has a safe voltage of less than 36 volts, and the voltage is stable. The conductive material may be any suitable conductive material, among others. In other words, the electrically conductive material may be formed of any material suitable for carrying an electrical current. For example, the conductive material may be formed from any suitable metal, such as steel, copper, aluminum, and the like.
The reminding of the unbuckled safety belt can be realized by an indicator light reminding mode and/or a sound reminding mode. Detecting a state of a seat belt latch at a seated seat in a vehicle after ignition of the vehicle; if the safety belt lock at the position where the passenger sits on the seat is detected to be in a locked state, the safety belt is not fastened when the safety belt lock is changed from the locked state to an unlocked state in the driving process of the vehicle. When a passenger is used to fasten the safety belt, the safety belt can be fastened after getting on the bus, so that the safety belt lock can be changed from an unlocking state to a locking state, and if the client has the action of unlocking the safety belt in a later ignition period, the reminding that the safety belt is not fastened can be carried out. On the one hand, judge whether need carry on the safety belt according to passenger's wish and custom and not tie and remind, on the other hand need not use pressure sensor, can reduce cost to reduce the probability of wrong report police, avoid the wrong report police to influence and drive safety. Every seat belt is embedded to have metal conductor, and when the safety belt hasp is in the shutting state, realize switching on of circuit, and realize the short circuit to the both ends of the resistance parallelly connected with it, the safety belt of every seat corresponds parallelly connected resistance and all establishes ties and set up in same circuit, under the condition of fixed voltage, follow different quantity safety belt hasps and be in the shutting state, correspond parallelly connected resistance with the safety belt hasp and be short circuited, thereby make the current increase in the series circuit, and then can accurately show passenger's the safety belt condition of fastening on the different seats, be convenient for the driver through the display module who is connected with control center module electricity, clearly learn the condition that the passenger fastened the safety belt, thereby it has pertinence to remind the personnel of fastening the safety belt not to have pertinence.
Specifically, the safety belt lock switch state signals are collected by a safety air bag controller and are sent to a control center module through a wireless or wired network or a can bus, and the safety belt lock switch state signals comprise driver side safety belt lock switch state signals and safety belt lock switch state signals of other seat positions in the vehicle; the rear door opening state signals are collected by the vehicle body controller and are sent to the control center module through a wireless or wired network or a can bus, and the vehicle door opening state signals comprise left rear door lock opening and closing state signals and right rear door lock opening and closing state signals; the vehicle speed signal is obtained by the calculation of a signal of a wheel speed sensor detected by an engine management system and is sent to the control center module through a CAN bus.
Specifically, the first detection module comprises a personnel detection unit and a seat information feedback unit, wherein the personnel detection unit is used for detecting and acquiring weight information, height information and image information of passengers passing through a vehicle door when the passengers pass through the vehicle door, and performing unique mark storage on the personnel information of the passengers passing through the vehicle door; the seat information feedback unit detects and acquires the sitting condition of the passenger according to the image information of the passenger, and sends information comprising the seat information feedback unit number and the sitting condition of the passenger to the control center module and the second detection module. In this embodiment, the personnel detection unit may be an image acquisition sensor and an infrared counting sensor, and the statistics of the number of the personnel is completed by capturing the human body image. Wherein, the seat information feedback unit comprises a number storage unit, a micro-processing unit and a sitting detection unit, the micro-processing unit is electrically connected with the number storage unit and the sitting detection unit, and receives signals from the personnel detection unit and the sitting detection unit when a person sits on the seat, generates an instruction for acquiring the seat number, sends the instruction to the number storage unit, acquires the seat number, sends information comprising the seat number and parameters of the micro-processing unit to the control center module, the control center module counts the number of people sitting on the seat according to the information of the received parameters of the micro-processing unit and the seat number, compares the number with the number of people detected by the personnel detection unit, judges whether all the people are sitting on the seat, and can effectively prevent the people from placing objects on the seat, resulting in a false alarm that the seat is not belted. The micro-processing unit may be a processor, the seating detection unit may be a pressure sensor provided on the seat, an infrared counting sensor provided on the seat, or an image acquisition sensor for a single seat, and the number storage unit may be a memory for storing the number of the seat for the single seat.
Specifically, the second detection module comprises a locking detection unit, a current detection unit and a voltage drop detection unit, wherein the locking detection unit is used for detecting and judging whether the vehicle is ignited or not, and when the vehicle is ignited, the current vehicle speed is obtained and the current vehicle speed is judged to be within a preset starting speed interval, and whether the locking of the safety belt at the seat in the vehicle is in a locking state or not is detected according to the seating condition of the passengers and the image information; the current detection unit is used for detecting the current value of a series circuit which is connected with all seats in series when the locking detection unit detects that the seat belt at the position of a sitting seat in the vehicle is locked; the voltage drop detection unit is used for acquiring the pre-safety belt voltage drop value of the passenger according to the weight information, the height information and the image information, the pre-safety belt voltage drop value is stored in advance according to the weight information and the height information, and when the locking detection unit detects that the safety belt lock at the seat position in the vehicle is in a locking state, the pre-safety belt voltage drop value is acquired, the safety belt voltage drop value is the conductive material between the support piece and the seat lock seat, the voltage drop generated by the current flowing through the conductive material at the distance is uniform in size, the conductive material arranged in the safety belt is bent along with the safety belt, wherein the distance between the support piece and the lock seat of the safety belt can be detected and acquired by the measuring unit arranged in the seat belt retractor, and the cross section, the height and the image information of the conductive material, The voltage drop due to wire loss can be calculated from the known wire resistance and the formula of the passing current when the circuit is in the conducting state. The pre-safety belt voltage drop can be matched with the length of a safety belt which can be stretched when the safety belt is fastened according to weight information, height information and image information, and therefore the pre-safety belt voltage drop is obtained through matching.
The current detection unit comprises a current measurement sensor and a judgment logic processor. The locking detection unit comprises a contact sensor and a processor, the processor is used for receiving vehicle ignition state information and vehicle speed information, controlling the operation of the contact sensor according to the seating condition of passengers and the image information instruction, and when the safety belt lock catch is in a locking state, the contact sensor is in a continuous activation state and sends safety belt locking state information to the control center module every other fixed preset time period.
Specifically, when the lock detection unit detects that the seat belt lock at the seat in the vehicle is in the locked state, the vehicle seat further includes: the seat information feedback unit is connected with the safety belt in parallel to form short-circuited information, and sends the information comprising the short-circuited information and the number of the seat information feedback unit corresponding to the short-circuited information one by one to the control center module. The seat information feedback unit is connected in series with the corresponding parallel resistor of the safety belt lock catch, and when the safety belt lock catch is in a locking state, the seat information feedback unit can be short-circuited, and the seat information feedback unit acquires a pre-stored short-circuit signal and sends the short-circuit signal to the control center module. The seat information feedback unit in this embodiment may include a pressure sensor, and a logically programmable processor, wherein the pressure sensor senses that a passenger is seated in the seat, and the logically programmable processor is activated according to an activation signal of the pressure sensor to form a number message to be sent to the control center module.
Specifically, according to the information of the first detection module and the second detection module, a reminding instruction is formed to control the reminding module to carry out reminding operation, including:
after the vehicle door is closed, the control center module calculates the number of personnel in the vehicle according to the unique mark of the personnel information in the vehicle detected and obtained by the personnel detection unit, and obtains a preset series circuit current value corresponding to the number of the personnel; and acquiring the current value of a series circuit which is obtained by detecting all the seats connected in series by the current detection unit, and judging whether the current value is smaller than the current value of a preset series circuit corresponding to the number of the people.
If the current value is smaller than the preset series circuit current value corresponding to the number of the passengers, acquiring information of a seat information feedback unit, analyzing to obtain a seat information feedback unit number and a seating condition of the passengers, and acquiring a seat information feedback unit number which does not feed back the short-circuited information and a seat information feedback unit number which feeds back the short-circuited information according to the seat information feedback unit number and the seating condition of the passengers;
forming a reminding instruction according to the serial number of the seat information feedback unit which does not feed back the short-circuited information, and sending the reminding instruction to the reminding module; analyzing the information sent by the voltage drop detection unit to obtain a safety belt voltage drop value and a pre-safety belt voltage drop value corresponding to the passenger according to the seat information feedback unit number and the image information, performing difference operation on the safety belt voltage drop value and the pre-safety belt voltage drop value to obtain a safety belt voltage drop difference value, if the safety belt voltage drop difference value falls within a preset safety belt voltage drop difference value error interval, sending information including that the safety belt is fastened correctly to the reminding module, otherwise, sending information including that the safety belt is not fastened correctly to the reminding module;
if the current value is greater than or equal to the current value of the preset series circuit corresponding to the number of the passengers, polling and detecting to obtain information of the first detection module and the second detection module, analyzing the information sent by the voltage drop detection unit to obtain a seat belt voltage drop value and a preset seat belt voltage drop value corresponding to the passengers according to the serial numbers of the seat information feedback units which feed back the short-circuited information and the image information, performing difference operation on the seat belt voltage drop value and the preset seat belt voltage drop value to obtain a seat belt voltage drop difference value, if the seat belt voltage drop difference value falls within a preset seat belt voltage drop difference value error interval, sending information including the correctly fastened seat belt to the reminding module, otherwise, sending information including the incorrectly fastened seat belt to the reminding module to avoid the situation that the vehicle travels, the passenger releases the buckle of the safety belt and fails to perform safety reminding in time, thereby causing accidents.
Specifically, the reminding module comprises: the vehicle speed detection unit is used for detecting whether the vehicle speed of a vehicle is greater than a first preset value or not when receiving a reminding instruction sent by the control center module, and if the vehicle speed of the vehicle is greater than the first preset value, continuously detecting whether the vehicle reaches a preset alarm condition or not; the reminding unit is used for responding to a voice reminding mode to remind passengers of seats corresponding to the seat information feedback unit number which does not feed back the short-circuited information when the speed of the vehicle reaches the preset alarm condition; and the reminding second unit is used for responding and starting a reminding mode comprising voice, vibration and a warning lamp to remind the passenger of the seat corresponding to the seat information feedback unit number which does not feed back the short-circuit information when the vehicle speed of the vehicle does not reach the preset alarm condition.
In addition, the reminding unit is also used for responding to the starting of a voice reminding mode when the speed of the vehicle reaches the preset alarm condition, and reminding the passengers at the seats which are numbered by the seat information feedback unit and do not fasten the safety belt correctly; and the second reminding unit is also used for responding to and starting a reminding mode comprising voice, vibration and a warning lamp when the speed of the vehicle does not reach the preset alarm condition, and reminding the passengers who have fed back the serial numbers of the seat information feedback units with the short-circuit information and are not wearing the seat belt correctly.
Specifically, in practical application, the first preset value can be 0km/h, and when the speed of the vehicle is greater than 0.5km/h, the safety belt is not fastened for reminding; or may be 1km/h, or may be 2km/h, which is not limited in the embodiment of the present invention. Preferably, the first preset value is 0 km/h. When the safety belt lock is changed from the locking state to the unlocking state, the safety belt is not fastened to be reminded by judging the speed of the vehicle, and the probability of false alarm can be further reduced. The preset alarm condition may be that the vehicle speed of the vehicle is greater than a preset vehicle speed, or may be that the travel distance of the vehicle is greater than a preset travel distance, or may be that the travel time of the vehicle is greater than a preset time value, which is not limited in the embodiment of the present invention. The alarm level of the first alarm mode may be higher than the alarm level of the second alarm mode, for example: the first alarm mode can adopt a voice reminding mode, and the second alarm mode can adopt an indicator light reminding mode. And preset alarm conditions are set, so that the automobile adopts different alarm modes under different conditions, and the probability of false alarm can be further reduced.
In addition, in the process of alarming and reminding, the reminding module detects whether the condition of releasing the alarming and reminding is met or not, and when the condition that the safety belt on the rear-row driver side is fastened again or the vehicle speed is 0km/h and the vehicle door is opened or the engine is flamed out is detected, the alarming and reminding is released.
Example three:
the present embodiment is basically the same as the second embodiment, except that: in practical application, the resistors connected in parallel corresponding to the seat belt of each seat are all connected in series in the same circuit, but in the using process, the resistors fail to lead to direct conduction of the resistor points, so that the seat information feedback unit is short-circuited in advance before people do not sit on the seat, and when people cannot sit on the seat, the sitting information of people is fed back accurately, therefore, the seat information feedback unit is also used for detecting the short-circuit or open-circuit condition of the resistors connected in parallel corresponding to the seat belt of each seat, namely the micro-processing unit of the seat information feedback unit is provided with an input end and an output end for detecting the resistors, the input end and the output end are respectively connected with two ends of the resistors, when the resistors fail and the resistor points are directly conducted, the micro-processing unit generates and stores the resistance fail information in advance according to the level signals of the input end and the output end, and when the detecting unit does not detect people sit on the seat, the control center module carries out standard adjustment on the circuit current value detected and obtained by the current detection unit according to the received information to obtain the correct circuit current value, thereby avoiding the occurrence of the condition of misinformation of the unbuckled safety belt, greatly reducing the workload of repeatedly checking the information by the processor, and further improving the operating efficiency of the processor.
In summary, the unbuckled reminding system of the safety belt disclosed by the invention has the following beneficial technical effects: 1. the passenger in the car is effectively prevented from incorrectly using the safety belt; 2. the safety awareness of passengers is gradually improved, and the intelligent monitoring and alarming function of the seat without a safety belt is realized; 3. the statistical analysis of unbelted belts and the analysis of the seating rate of the vehicle are realized, and whether drivers and members on the vehicle wear the belts or not is supervised.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems, and devices discussed above are examples, and various configurations may omit, replace, or add various processes or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than that described and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, as different aspects and elements of the configurations may be combined in a similar manner. Further, elements therein may be updated as technology evolves, i.e., many of the elements are examples and do not limit the scope of the disclosure or claims.
Specific details are given in the description to provide a thorough understanding of the exemplary configurations including implementations. However, configurations may be practiced without these specific details, such as well-known circuits, processes, algorithms, structures, and techniques, which have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.
It is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, that are intended to define the spirit and scope of this invention. The above examples are to be construed as merely illustrative and not limitative of the remainder of the disclosure. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.
Claims (7)
1. A seat belt unfastening reminder system, comprising: a first detection module, a second detection module, a control center module and a reminding module, wherein,
the first detection module is used for detecting and acquiring passenger information when passengers pass through a vehicle door;
the second detection module is used for detecting and acquiring a safety belt locking state of a sitting seat in the vehicle and acquiring the current value of a series circuit which is connected with all seats in series when the ignition of the vehicle is finished and the vehicle speed is within a preset starting speed interval, detecting and acquiring a safety belt voltage drop value and acquiring a pre-safety belt voltage drop value according to the passenger information when the safety belt locking of the sitting seat is in a locking state, and sending the safety belt locking state, the safety belt voltage drop value and the pre-safety belt voltage drop value to the control center module;
the control center module forms a reminding instruction according to the information of the first detection module and the second detection module to control the reminding module to carry out reminding operation;
the reminding module is used for reminding safety belt information according to the information of the control center module;
the safety belt is embedded with conductive materials with uniform sizes;
the safety belt lock is characterized in that a resistor is connected in parallel between the lock head and the lock seat of the safety belt, the safety belt of each seat is connected in series with the parallel resistor in the same circuit to form a series circuit, and when the safety belt is locked in a locked state, two ends of the parallel resistor between the lock head and the lock seat of the safety belt are short-circuited.
2. The seat belt unfastening reminder system according to claim 1, wherein the first detection module comprises a person detection unit, a seat information feedback unit, wherein,
the passenger detection unit is used for detecting and acquiring the weight information, the height information and the image information of passengers passing through the vehicle door when the passengers pass through the vehicle door, and carrying out unique mark storage on the passenger information of the passengers passing through the vehicle door;
the seat information feedback unit detects and acquires the sitting condition of the passenger according to the image information of the passenger, and sends information comprising the seat information feedback unit number and the sitting condition of the passenger to the control center module and the second detection module.
3. The seat belt unfastening warning system according to claim 2, wherein said second detection module comprises a lock-up detection unit, a current detection unit, a voltage drop detection unit, wherein,
the locking detection unit is used for detecting and judging whether the vehicle is ignited or not, acquiring the current vehicle speed when the vehicle is ignited and judging whether the current vehicle speed is within a preset starting speed interval or not, and detecting whether the safety belt locking at the passenger seating seat in the vehicle is in a locking state or not according to the seating condition of the passenger and the image information;
the current detection unit is used for detecting the current value of a series circuit which is connected with all seats in series when the locking detection unit detects that the seat belt at the position of a sitting seat in the vehicle is locked;
and the voltage drop detection unit is used for acquiring a pre-safety belt voltage drop value of the passenger according to the weight information, the height information and the image information, and acquiring a safety belt voltage drop value of a sitting position of the passenger when the locking detection unit detects that the safety belt lock of the sitting position in the vehicle is in a locking state.
4. The seat belt unfastening reminder system according to claim 3, wherein when the lock detection unit detects that the seat belt lock at the seated seat in the vehicle is in the locked state, further comprising:
the seat information feedback unit is connected with the safety belt in parallel to form short-circuited information, and sends the information comprising the short-circuited information and the number of the seat information feedback unit corresponding to the short-circuited information one by one to the control center module.
5. The seat belt unfastening reminding system of claim 4, wherein the forming of the reminding instruction according to the information of the first detection module and the second detection module controls the reminding module to carry out reminding operation, comprising:
after the vehicle door is closed, the control center module calculates the number of personnel in the vehicle according to the unique mark of the personnel information in the vehicle detected and obtained by the personnel detection unit, and obtains a preset series circuit current value corresponding to the number of the personnel; and the current detection unit is used for detecting the current value of the series circuit which is connected with all the seats in series and judging whether the current value is less than the current value of the preset series circuit corresponding to the number of the people or not,
if the current value is smaller than the preset series circuit current value corresponding to the number of the passengers, acquiring information of a seat information feedback unit, analyzing to obtain a seat information feedback unit number and a seating condition of the passengers, and acquiring a seat information feedback unit number which does not feed back the short-circuited information and a seat information feedback unit number which feeds back the short-circuited information according to the seat information feedback unit number and the seating condition of the passengers;
forming a reminding instruction according to the serial number of the seat information feedback unit which does not feed back the short-circuited information, and sending the reminding instruction to the reminding module; analyzing the information sent by the voltage drop detection unit to obtain a safety belt voltage drop value and a pre-safety belt voltage drop value corresponding to the passenger according to the seat information feedback unit number and the image information, performing difference operation on the safety belt voltage drop value and the pre-safety belt voltage drop value to obtain a safety belt voltage drop difference value, if the safety belt voltage drop difference value falls within a preset safety belt voltage drop difference value error interval, sending information including that the safety belt is fastened correctly to the reminding module, otherwise, sending information including that the safety belt is not fastened correctly to the reminding module;
if the current value is larger than or equal to the current value of a preset series circuit corresponding to the number of the passengers, polling detection is carried out to obtain information of the first detection module and the second detection module, information sent by the voltage drop detection unit is analyzed to obtain a seat belt voltage drop value and a preset seat belt voltage drop value corresponding to the passengers according to the seat information feedback unit number fed back with the short-circuited information and the image information, difference operation is carried out on the seat belt voltage drop value and the preset seat belt voltage drop value to obtain a seat belt voltage drop difference value, if the seat belt voltage drop difference value falls within a preset seat belt voltage drop difference value error interval, information including that the passengers have fastened the seat belts correctly is sent to the reminding module, and if not, information including that the passengers have fastened the seat belts incorrectly is sent to the reminding module.
6. The seat belt unfastening reminder system of claim 5, wherein the reminder module comprises: a vehicle speed detection unit, a first reminding unit and a second reminding unit, wherein,
the vehicle speed detection unit is used for detecting whether the vehicle speed of the vehicle is greater than a first preset value or not when receiving a reminding instruction sent by the control center module, and if the vehicle speed of the vehicle is greater than the first preset value, continuously detecting whether the vehicle speed of the vehicle reaches a preset alarm condition or not;
the reminding unit is used for responding to a voice reminding mode to remind passengers of seats corresponding to the seat information feedback unit number which does not feed back the short-circuited information when the speed of the vehicle reaches the preset alarm condition;
and the reminding second unit is used for responding and starting a reminding mode comprising voice, vibration and a warning lamp to remind the passenger of the seat corresponding to the seat information feedback unit number which does not feed back the short-circuit information when the vehicle speed of the vehicle does not reach the preset alarm condition.
7. The seatbelt unfastening warning system according to claim 6, wherein the reminding unit is further configured to remind a passenger at a seat where the seat information feedback unit number having fed back the short-circuited information and the seatbelt is not fastened correctly in response to a voice reminding mode being activated when the vehicle speed of the vehicle reaches the preset alarm condition; and the second reminding unit is also used for responding to and starting a reminding mode comprising voice, vibration and a warning lamp when the speed of the vehicle does not reach the preset alarm condition, and reminding the passengers who have fed back the serial numbers of the seat information feedback units with the short-circuit information and are not wearing the seat belt correctly.
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| CN113954782A (en) * | 2021-11-04 | 2022-01-21 | 东风汽车集团股份有限公司 | Method, device and equipment for reminding unfastening of rear seat belt and readable storage medium |
| CN114802095B (en) * | 2022-03-24 | 2023-03-10 | 江铃汽车股份有限公司 | Method and system for reminding unfastening of rear seat belt, storage medium and vehicle |
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