Automobile inside person left alarm device and automobile using the device

Abstract

The utility model provides a kind of left personnel alarm device in car and the car of application of the device, it is related to the technical field of car safety prevention and control, including microcontroller, vehicle body controller electric connection, wireless radio frequency communication module, infrared array temperature sensor, SIM communication module and alarm, wireless radio frequency communication module is used to receive remote control lock car signal and send to microcontroller, infrared array temperature sensor is used to the body temperature of left personnel in cabin is collected and sent to microcontroller, SIM communication module is used to accept alarm signal sent by microcontroller, and alarm signal is sent to mobile phone terminal, the utility model realizes to the body temperature collection and analysis and judgment of left personnel in car cabin, accurately judge whether there is left personnel, rapidly carry out alarm and cooling treatment, realize timely and accurate rescue left personnel in car, to avoid the occurrence of casualty accident.

Description

Technical Field

[0001] This utility model relates to the field of automotive safety and control technology, and in particular to an alarm device for leaving people in a car and a car using the device. Background Technology

[0002] Drivers often leave children unattended in car seats due to negligence. Children are at risk of suffocation if left in a confined space for an extended period. Currently, most cars lack relevant safety measures. Some cars use cameras to detect unattended persons in the cabin, but these cameras are inaccurate in dark environments. The complex structure of the car cabin also creates blind spots for the cameras, and their images lack penetration. Furthermore, objects inside the car can obstruct children's view, leading to misjudgments and insufficient accuracy.

[0003] Therefore, there is a need for an alarm device for leaving people in a car and a car that uses the device to solve the above problems. Utility Model Content

[0004] This utility model proposes an alarm device for people left in a car and a car using the device. It realizes the collection and analysis of body temperature of people left in the car cabin, accurately determines whether there are people left behind, and quickly alarms and cools down the car, thus realizing timely and accurate rescue of people left in the car and avoiding the occurrence of casualties.

[0005] One technical solution of this utility model is implemented as follows:

[0006] An alarm device for occupants left in a vehicle includes a microcontroller electrically connected to a vehicle body controller, and further includes:

[0007] A wireless radio frequency communication module is used to receive remote vehicle locking signals and send them to the microcontroller;

[0008] An infrared array temperature sensor is used to collect the body temperature of the personnel left in the cabin and send it to the microcontroller. There is at least one infrared array temperature sensor installed in the cabin.

[0009] The SIM communication module is used to receive alarm signals from the microcontroller and send the alarm signals to the mobile terminal.

[0010] An alarm device, which is electrically connected to the vehicle body controller;

[0011] The microcontroller is electrically connected to the infrared array temperature sensor, the wireless radio frequency communication module, the SIM communication module, and the alarm, respectively.

[0012] As a preferred technical solution, one infrared array temperature sensor is provided, and the infrared array temperature sensor is installed in the middle position of the top cover above the rear seats in the vehicle.

[0013] As a preferred technical solution, two infrared array temperature sensors are provided, and the two infrared array temperature sensors are respectively installed on both sides of the rear vehicle interior.

[0014] As a preferred technical solution, the alarm includes vehicle hazard lights and a vehicle horn.

[0015] As a preferred technical solution, the microcontroller is electrically connected to the infrared array temperature sensor via IIC communication.

[0016] As a preferred technical solution, the microcontroller is connected to a microcontroller CAN bus, the body controller is connected to a body CAN bus, and the microcontroller CAN bus and the body CAN bus are connected.

[0017] As a preferred technical solution, the vehicle body controller is electrically connected to the vehicle hazard lights and the vehicle horn via an alarm output interface circuit, and the vehicle body controller is electrically connected to the vehicle windows and air conditioner via a cooling output interface circuit.

[0018] Another technical solution of this utility model is implemented as follows:

[0019] A car, including the aforementioned alarm device for leaving people inside the car.

[0020] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0021] Because the vehicle occupant alarm device includes an infrared array temperature sensor, during its use, the device receives remote locking signals via a wireless radio frequency communication module and sends them to a microcontroller. The microcontroller then activates the infrared array temperature sensor, which collects the body temperature of any occupants remaining in the cabin and sends it to the microcontroller. The microcontroller analyzes and accurately determines whether any occupants are left in the cabin. If so, it sends an alarm signal to the SIM communication module and the vehicle control unit. The SIM communication module then sends the alarm signal to a mobile terminal. The vehicle control unit activates the hazard lights and horn, lowers the windows, and turns on the air conditioning, enabling timely and accurate rescue of occupants and preventing accidents.

[0022] This invention uses an infrared array temperature sensor to collect the body temperature of any personnel left in the cabin. A microcontroller then analyzes the temperature to determine if any personnel remain inside the vehicle. Compared to identification via camera image scanning, this device can function normally even in dark environments and collects infrared radiation temperature information, thus avoiding privacy leaks and detection issues caused by obstruction. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A structural block diagram of a vehicle occupant alarm system.

[0025] Figure 2 This is a block diagram of the microcontroller.

[0026] Figure 3 This is the schematic diagram of the alarm output interface circuit.

[0027] Figure 4 The schematic diagram of the output interface circuit for cooling. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1:

[0030] like Figures 1-4 As shown in the diagram, the vehicle occupant alarm device includes a microcontroller, which is electrically connected to the vehicle body controller, and also includes:

[0031] The wireless radio frequency communication module is used to receive remote locking signals and send them to the microcontroller. The wireless radio frequency communication module uses a 433MHz radio frequency module.

[0032] An infrared array temperature sensor is used to collect the body temperature of personnel remaining in the cabin and send it to the microcontroller. There is at least one infrared array temperature sensor installed in the cabin. The infrared array temperature sensor adopts the MEMS Omron D6T-44L infrared array temperature sensor.

[0033] The SIM communication module is used to receive alarm signals from the microcontroller and send the alarm signals to the mobile terminal. The SIM communication module adopts the WH-GM5 model.

[0034] The alarm is electrically connected to the vehicle body controller, which uses the RFE272A chip.

[0035] The microcontroller is electrically connected to the infrared array temperature sensor, the wireless radio frequency communication module, the SIM communication module, and the alarm.

[0036] One infrared array temperature sensor is installed, located in the middle of the roof above the rear seats inside the vehicle.

[0037] In addition, the alarm system includes hazard lights and a horn.

[0038] It also includes a power supply. In this invention, the installation positions of the power supply, microcontroller, body controller, wireless radio frequency communication module and SIM communication module are all conventional technologies, and will not be described in detail here.

[0039] The microcontroller is electrically connected to the infrared array temperature sensor via IIC communication.

[0040] The microcontroller is connected to the microcontroller CAN bus, the body controller is connected to the body CAN bus, and the microcontroller CAN bus and the body CAN bus are connected.

[0041] like Figure 3 Figure 4 As shown, the vehicle body controller is electrically connected to the vehicle hazard lights and vehicle horn through the alarm output interface circuit. The alarm output interface circuit is provided with output ports HOUT1 for electrical connection to the vehicle hazard lights and HOUT2 for electrical connection to the vehicle horn. The vehicle body controller is electrically connected to the vehicle windows and air conditioning through the cooling output interface circuit. The cooling output interface circuit is provided with output ports HOUT3 for electrical connection to the vehicle windows and HOUT4 for electrical connection to the air conditioning.

[0042] Example 2:

[0043] This embodiment is basically the same as Embodiment 1, except that two infrared array temperature sensors are provided, and the two infrared array temperature sensors are respectively installed on both sides of the rear vehicle interior.

[0044] The infrared array temperature sensor is installed in the roof between the rear seats.

[0045] Example 3:

[0046] The vehicle includes the vehicle-in-car alarm device as described in Embodiment 1 or Embodiment 2.

[0047] In summary, this utility model enables the collection and analysis of body temperature data of occupants inside a car cabin, accurately determining whether any occupants have been left behind. Through a SIM communication module, alarm, and vehicle control unit, it triggers alarms and cools the vehicle, enabling timely and accurate rescue of any occupants left inside and thus preventing accidents and injuries.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An alarm device for occupants left in a car, characterized in that, Includes a microcontroller, which is electrically connected to the body controller, and further includes: A wireless radio frequency communication module is used to receive remote vehicle locking signals and send them to the microcontroller; An infrared array temperature sensor is used to collect the body temperature of the personnel left in the cabin and send it to the microcontroller. There is at least one infrared array temperature sensor installed in the cabin. The SIM communication module is used to receive alarm signals from the microcontroller and send the alarm signals to the mobile terminal. An alarm device, which is electrically connected to the vehicle body controller; The microcontroller is electrically connected to the infrared array temperature sensor, the wireless radio frequency communication module, the SIM communication module, and the alarm, respectively.

2. The alarm device for leaving occupants in a car according to claim 1, characterized in that, One infrared array temperature sensor is provided, and the infrared array temperature sensor is installed in the middle position of the top cover above the rear seats in the vehicle.

3. The alarm device for leaving occupants in a car according to claim 1, characterized in that, Two infrared array temperature sensors are provided, and the two infrared array temperature sensors are respectively installed on both sides of the rear vehicle body interior.

4. The alarm device for occupants left in a car according to claim 2 or 3, characterized in that, The alarm system includes hazard lights and a horn.

5. The alarm device for leaving occupants in a car according to claim 1, characterized in that, The microcontroller is electrically connected to the infrared array temperature sensor via IIC communication.

6. The alarm device for leaving occupants in a car according to claim 1, characterized in that, The microcontroller is connected to a microcontroller CAN bus, the body controller is connected to a body CAN bus, and the microcontroller CAN bus and the body CAN bus are connected.

7. The alarm device for leaving occupants in a car according to claim 4, characterized in that, The vehicle body controller is electrically connected to the vehicle hazard lights and the vehicle horn via an alarm output interface circuit, and is electrically connected to the vehicle windows and air conditioner via a cooling output interface circuit.

8. An automobile, characterized in that, Including the alarm device for leaving a person in a vehicle as described in any one of claims 1-7.

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