CN214450627U - Electric automobile seat belt rescue system - Google Patents

Abstract

The system monitors whether a person is left in a vehicle or not based on a signal indicating whether the seat belt is worn or not, and takes corresponding safety protection measures according to test values of a temperature sensor, a rainfall sensor and an oxygen concentration sensor, so that life risk accidents caused by overhigh temperature in the vehicle or oxygen deficiency in the vehicle are reduced. The utility model has the advantages that: simple structure, convenient installation, low cost and high safety factor, and can be widely applied to various electric automobiles.

Description

Electric automobile seat belt rescue system

Technical Field

The utility model relates to a personnel safety protection field in the car, in particular to personnel's rescue system in car based on information is worn to electric automobile seat safety belt.

Background

In daily life, some parents forget children in the car because of carelessness. Due to hot summer weather, the temperature in the car may reach 50 ℃ or higher, resulting in accidents and life risks for children in the car. Although most news of children dying from death in the car is reported, the events still occur every year. In addition, if the air conditioner is turned on for a long time, oxygen deficiency in the vehicle can be caused, and life danger and safety are brought to people in the vehicle. Therefore, the seat belt rescue system is provided, and when children forget to get in the car or oxygen deficiency occurs in the car, the system automatically carries out rescue to prevent life danger of people in the car.

Some alarm and rescue systems for preventing children from being forgotten in the car exist in the prior art, but most of the alarm and rescue systems monitor whether children are forgotten in the car through a human body infrared sensor or a pressure sensor, and then send alarm information to a car owner through sound and light or a mobile phone, or open a car window to reduce the temperature in the car. Although the methods can reduce the occurrence of life risk accidents of children to a certain extent, the methods have some disadvantages, for example, the opening of the window may cause property loss in the car, the sound and light of the car are easily ignored by passers-by, or the car owner cannot check the alarm information on the mobile phone in time, or even in the case of opening the window, the temperature in the car may still increase, and these conditions may still cause the life of children to be dangerous. In addition, a device for detecting whether a person is in the vehicle needs to be additionally arranged, so that the cost and the complexity of parts are increased.

Disclosure of Invention

The utility model provides a problem is, overcome the not enough of background art, provide an electric automobile seat belt rescue system, whether someone was forgotten in the car based on the signal monitoring that the seat belt was whether worn to this system to according to temperature sensor, rainfall sensor, oxygen concentration sensor's test value, take corresponding safety protection measure, reduce because the life risk accident that the interior high temperature of car or interior oxygen deficiency of car caused.

The utility model provides a technical scheme that its technical problem adopted is: a rescue system for an electric automobile seat belt comprises a detection module, a main control module, a power module, an execution module and a communication module; the detection module consists of a temperature sensor, a rainfall sensor, an oxygen concentration sensor, a safety belt trigger switch and an automobile starting switch, wherein the temperature sensor is used for detecting the temperature in the automobile, the rainfall sensor is used for detecting whether the automobile rains, the oxygen concentration sensor is used for detecting the content of oxygen in the automobile, the safety belt trigger switch is used for judging whether a person exists in the automobile, and the automobile starting switch is used for detecting whether the automobile stops; the main control module consists of a singlechip, processes and judges information from a temperature sensor, a rainfall sensor, an oxygen concentration sensor, a safety belt trigger switch and an automobile starting switch, and controls the opening and closing of an automobile skylight and the starting of an automobile air conditioner blower and an electric automobile air conditioner refrigerating system; the power supply module comprises a starting switch, a 12V power supply and a 5V power supply, the starting switch controls the start and the stop of the rescue system in a power-on and power-off mode, the 12V power supply supplies power to the execution module, and the 5V power supply supplies power to the main control module and the detection module; the execution module consists of a motor control system of an automobile skylight, an air conditioning blower, a power supply system of an electric automobile, an air conditioning relay in a high-voltage distribution box and an electric automobile body control system; the communication module is composed of a GSM module and is used for sending danger alarm information to a vehicle owner;

the rescue system comprises the following protection steps: firstly, detecting whether the automobile is in a stop state or not and whether people exist in the automobile or not; if the automobile is detected to be in a stop state and a person is in the automobile, an alarm signal is sent out through the communication module, and meanwhile, the execution module is controlled to work:

firstly, detecting whether the oxygen concentration in the vehicle is lower than a threshold value by an oxygen concentration sensor, and if so, entering a rainfall detection step; if the rainfall detection result is negative, opening the skylight to a half position; if the rainfall detection result is yes, controlling a blower of the air conditioning system to operate at a low speed; the device is used for reducing the harm of oxygen deficiency in the vehicle to members in the vehicle;

secondly, the temperature sensor detects whether the temperature in the vehicle reaches a first threshold value: if the detection result is yes, entering a rainfall detection step; if the rainfall detection result is negative, opening all the skylights; if the rainfall detection result is yes, controlling a blower of the air conditioning system to operate at a high speed; the device is used for reducing the harm of high temperature in the vehicle to members in the vehicle;

thirdly, detecting whether the temperature in the vehicle reaches a second threshold value or not by a temperature sensor, and if so, starting an air-conditioning refrigeration system of the electric vehicle to forcibly cool the air in the vehicle; the device is used for reducing the harm of the ultrahigh temperature in the vehicle to the members in the vehicle.

The utility model has the advantages that: the safety protection device has the advantages of simple structure, convenience in installation, low cost and high safety coefficient, and can be widely applied to various electric automobiles to protect the life safety of members in the automobile under the condition of oxygen deficiency in the automobile or overhigh temperature in the automobile.

Drawings

Fig. 1 is a working principle diagram of a seat belt rescue system of an electric vehicle.

The system comprises a temperature sensor 1, a rainfall sensor 2, an oxygen concentration sensor 3, a safety belt trigger switch 4, an automobile starting switch 5, a single chip microcomputer 6, a power supply 7-12V, a power supply 8-5V, a skylight motor control system 9, an air conditioner blower 10, an electric automobile power supply system 11, an air conditioner relay 12, an automobile body controller 13, a GSM module 14 and a starting switch 15.

Detailed Description

The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1, an electric vehicle seat belt rescue system is composed of a detection module, a main control module, a power module, an execution module and a communication module. The detection module consists of a temperature sensor 1, a rainfall sensor 2, an oxygen concentration sensor 3, a safety belt trigger switch 4 and an automobile start switch 5, wherein the temperature sensor 1 is used for detecting the temperature in the automobile, the rainfall sensor 2 is used for detecting whether the automobile rains, the oxygen concentration sensor 3 is used for detecting the content of oxygen, the safety belt trigger switch 4 is used for judging whether the automobile is occupied or not, and the automobile start switch 5 is used for detecting whether the automobile stops; the main control module consists of a singlechip 6, processes and judges information from a temperature sensor 1, a rainfall sensor 2, an oxygen concentration sensor 3, a safety belt trigger switch 4 and an automobile starting switch 5, and controls the opening and closing of an automobile skylight and the starting of an automobile air conditioner blower and an electric automobile air conditioner refrigerating system; the power module comprises a starting switch 15, a 12V power supply 7 and a 5V power supply 8, the starting switch 15 controls the start and the stop of the rescue system in a power-on and power-off mode, the 12V power supply supplies power to the execution module, and the 5V power supply supplies power to the main control module and the detection module; the execution module consists of a motor control system 9 of an automobile skylight, an air conditioner blower 10, a power supply system 11 of the electric automobile, an air conditioner relay 12 in a high-voltage distribution box and an electric automobile body control system 13; the communication module is composed of a GSM module 14 and is used for sending danger alarm information to a vehicle owner.

For the rescue system of the electric automobile seat belt, the temperature sensor 1 of the detection module is used for detecting the temperature in the automobile, can be arranged at any position in the automobile, and preferably selects the side surface of the backrest, so that the wiring of the rescue system is convenient; the temperature sensor may be a positive temperature coefficient sensor or a negative temperature coefficient sensor, preferably a negative temperature coefficient sensor.

To this electric automobile seat belt rescue system, detection module's rainfall sensor 2 installs at the window frame edge of sunroof for whether it is rainy to detect weather. The rainfall sensor is preferably an infrared scattering type rainfall sensor.

For the rescue system of the seat belt of the electric automobile, the oxygen concentration sensor 3 of the detection module can be arranged at any position in the automobile, and the side surface of the backrest is preferably selected, so that the wiring of the system is convenient. The oxygen concentration sensor is preferably a solid polymer sensor.

For the electric automobile seat belt rescue system, the belt trigger switch 4 and the automobile start switch 5 of the detection module share the original automobile device, and the information of whether the belt is worn and whether the automobile stops is acquired from the belt trigger switch 4 and the automobile start switch 5 of the original automobile.

For the electric automobile seat belt rescue system, whether the automobile is in a stop state or not can be judged by adopting an original parking brake module of the automobile. If the original car seat does not have a safety belt trigger switch, a trigger switch which is the same as the existing car seat safety belt alarm indicating system is additionally arranged.

For the electric automobile seat belt rescue system, the single chip microcomputer 6 is preferably installed on a back row seat, so that arrangement and control wiring of parts of the system are facilitated, and the model AT89C52 is preferred. The single chip microcomputer is powered by a 5V power supply, receives information of the temperature sensor 1, the rainfall sensor 2, the oxygen concentration sensor 3, the safety belt trigger switch 4 and the automobile starting switch 5, and sends instructions to control the opening and closing of an automobile skylight and the starting of an air conditioner blower and an air conditioner refrigerating system of the electric automobile.

For the electric automobile seat belt rescue system, the direct current 12V of the original automobile power supply system is adopted to supply power for the execution module, 12V is converted into 5V through the power supply voltage reduction chip, and the power is supplied to the singlechip 6, the temperature sensor 1, the rainfall sensor 2, the oxygen concentration sensor 3, the belt trigger switch 4 and the automobile starting switch 5. The power supply voltage reduction chip can be selected from an lm2576-5 chip. The starting switch 15 is arranged on the buckle lock of the automobile safety belt, and controls the starting and the closing of the rescue system in a power-on and power-off mode.

For the electric automobile seat belt rescue system, the skylight motor control system 9 preferably selects a stepping motor, and the skylight opening position is completed by controlling the number of steps of the motor.

In the electric vehicle seatbelt rescue system, the air conditioning blower 10 shares the blower of the original vehicle air conditioning system.

For the electric automobile seat belt rescue system, a main control module sends an instruction to an air conditioner starting interface of an electric automobile body controller 13, and meanwhile, a high-voltage main relay of an electric automobile power system 11 is controlled to be closed, and an air conditioner relay 12 in a high-voltage distribution box is controlled to be closed, so that an electric automobile air conditioner refrigerating system works, and air in an automobile is cooled.

For the electric automobile seat belt rescue system, the communication module can adopt a GSM-TC35 module, and after receiving the signal of the singlechip 6, danger alarm information is sent to a mobile phone of an automobile owner.

The working process of the electric automobile seat belt rescue system is as follows:

the car start switch 5 is in the OFF position, i.e. the parking position, and the belt trigger switch 4 prompts the belt to be worn, and the rescue system is triggered to operate. At this moment, the main control module monitors signals of the temperature sensor 1, the rainfall sensor 2 and the oxygen concentration sensor 3, and controls the execution module to work:

firstly, detecting an oxygen concentration threshold value: and detecting whether the oxygen concentration in the vehicle is lower than a threshold value, and if so, entering a rainfall detection step. If the rainfall detection result is negative, the skylight is opened to a half position, and if the rainfall detection result is negative, the skylight is opened; if the rainfall detection result is yes, the rainfall detection result indicates that the automobile rains, and the blower of the original automobile air conditioning system is controlled to run at a low speed, so that the harm of oxygen deficiency in the automobile to members in the automobile is reduced.

Secondly, detecting a first temperature threshold value: detecting the temperature in the vehicle, and judging whether the temperature reaches a first threshold value: and if the detection result is yes, entering a rainfall detection step. If the rainfall detection result is negative, opening all the skylights; if the rainfall detection result is yes, controlling the blower of the original vehicle air conditioning system to run at a high speed, and reducing the harm of high temperature in the vehicle to members in the vehicle.

Thirdly, detecting a second threshold value of the temperature: detecting whether the temperature in the vehicle reaches a second threshold value or not when the temperature in the vehicle is too high, and if so, starting an air-conditioning refrigeration system of the electric vehicle to forcibly cool the air in the vehicle; the device is used for reducing the harm of the ultrahigh temperature in the vehicle to the members in the vehicle.

The first step and the second step can prevent rainwater from wetting the interior personnel or the interior trim of the automobile. Moreover, the skylight is opened to achieve the effects of heat dissipation and oxygen increase. And a third step, when the value monitored by the temperature sensor in real time exceeds a specified second threshold value, which indicates that high temperature causes life danger to people in the vehicle, starting an air conditioning system of the electric vehicle, and forcibly cooling the interior of the vehicle.

The threshold value of the oxygen concentration is set according to the minimum standard of the oxygen content of the air of the human body. The oxygen concentration of the human body capable of living normally is optimized: 19.5 to 23.5 percent.

The first threshold value of the temperature can be set to 30 ℃, and when the temperature is higher than 30 ℃, the high temperature state is considered, and the comfort level of people in the vehicle is influenced.

The second threshold value of the temperature can be set to 35 ℃, and when the temperature is higher than 35 ℃, the state is considered to be an ultra-high temperature state, which may affect the life safety of people in the vehicle.

Although the embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that; various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.

Claims (3)

1. A rescue system for an electric automobile seat belt is characterized by comprising a detection module, a main control module, a power module, an execution module and a communication module; the detection module consists of a temperature sensor, a rainfall sensor, an oxygen concentration sensor, a safety belt trigger switch and an automobile starting switch; the main control module consists of a singlechip, processes and judges information from a temperature sensor, a rainfall sensor, an oxygen concentration sensor, a safety belt trigger switch and an automobile starting switch, and controls the opening and closing of an automobile skylight and the starting of an automobile air conditioner blower and an electric automobile air conditioner refrigerating system; the power supply module comprises a starting switch, a 12V power supply and a 5V power supply, the starting switch controls the start and the stop of the rescue system in a power-on and power-off mode, the 12V power supply supplies power to the execution module, and the 5V power supply supplies power to the main control module and the detection module; the execution module consists of a motor control system of an automobile skylight, an air conditioning blower, a power supply system of an electric automobile, an air conditioning relay in a high-voltage distribution box and an electric automobile body control system; the communication module is composed of a GSM module and used for sending danger alarm information to a vehicle owner.

2. The rescue system for an electric car seat belt according to claim 1, wherein the rain sensor is installed at an edge of a window frame of a car sunroof.

3. The rescue system for an electric car seat belt according to claim 1, wherein the belt trigger switch and the car start switch of the detection module share the original car device.

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