A sensor-based broken window system

Abstract

This utility model provides a sensor-based window-breaking system, including a main control microcontroller module, multiple sensors, a power management module, and a CAN communication module. The multiple sensors, power management module, and CAN communication module are all connected to the main control microcontroller module. The power management module supplies power to the main control microcontroller module. The multiple sensors detect the temperature and water level inside the vehicle. When the temperature or water level exceeds a preset value, a warning signal is sent to the main control microcontroller module, which then controls the window-breaking device to break the window. The CAN communication module is electrically connected to the main control microcontroller module and includes a transceiver chip, a power supply and filtering unit, an enable control unit, a bus connection unit, and a protection circuit unit. The power supply and filtering unit supplies power to the transceiver chip. The enable control unit controls the transceiver chip to enter either working or standby mode. The bus connection unit transmits CAN data. The protection circuit unit protects the transceiver chip from damage.

Description

Technical Field

[0001] This utility model belongs to the field of window breaker technology, and in particular relates to a sensor-based window breaker system. Background Technology

[0002] Window breakers are emergency escape tools used to break windows for escape in emergencies. Traditional window breakers rely primarily on manual mechanical striking; however, they cannot break windows autonomously when the driver or passengers are temporarily incapacitated. This has led to the development of intelligent window breakers capable of autonomous window breaking. However, an effective solution remains to synchronize the real-time operational status information of these intelligent window breakers to the system.

[0003] Therefore, it is necessary to provide a sensor-based window breaking system to solve the above problems. Utility Model Content

[0004] This invention provides a sensor-based window breaking system that uses a CAN communication module to synchronize the window breaker's operating status information to the system in real time.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sensor-based window breaking system includes a main control microcontroller module, multiple sensors, a power management module, and a CAN communication module, wherein the multiple sensors, the power management module, and the CAN communication module are electrically connected to the main control microcontroller module.

[0007] The power management module is used to supply power to the main control microcontroller module;

[0008] The multiple sensors are used to detect the temperature and water level inside the vehicle in real time. When the temperature or water level exceeds the preset value, a warning signal is sent to the main control microcontroller module, and the main control microcontroller module controls the window breaking device to break the window.

[0009] The CAN communication module is used for electrical connection with the main control microcontroller module. The CAN communication module includes a transceiver chip, a power supply and filtering unit, an enable control unit, a bus connection unit, and a protection circuit unit. The power supply and filtering unit is used to supply power to the transceiver chip. The enable control unit is used to control the transceiver chip to enter working or standby state. The bus connection unit is used to transmit CAN data. The protection circuit unit is used to protect the transceiver chip from damage.

[0010] Preferably, the power supply and filtering unit includes a first capacitor C9, which is used to filter out high-frequency noise on the power line, and the first capacitor C9 is 100nF.

[0011] Preferably, the enable control unit includes an STB pin, which is the enable control terminal of the transceiver chip.

[0012] Preferably, the bus connection unit includes a first differential signal line CANH and a second differential signal line CANL, which are used to transmit CAN data.

[0013] Preferably, the bus connection unit further includes a first resistor R46 and a second resistor R7, which are used to match the bus impedance to reduce signal reflection. The first resistor R46 and the second resistor R7 are both 2.2KΩ.

[0014] Preferably, the protection circuit unit includes a first transient voltage suppression diode TVS1 and a second transient voltage suppression diode TVS2, wherein the first transient voltage suppression diode TVS1 and the second transient voltage suppression diode TVS2 are used to quickly conduct when a momentary high voltage occurs on the bus to clamp the voltage within a safe range.

[0015] Preferably, the transceiver chip is model TJA1044T / 1Z.

[0016] Compared with the prior art, the technical solution of this utility model has beneficial effects.

[0017] This utility model provides a sensor-based window-breaking system, including a main control microcontroller module, multiple sensors, a power management module, and a CAN communication module. The multiple sensors, power management module, and CAN communication module are electrically connected to the main control microcontroller module. The power management module supplies power to the main control microcontroller module. The multiple sensors are used to detect the temperature and water level inside the vehicle in real time. When the temperature or water level exceeds a preset value, a warning signal is sent to the main control microcontroller module, which then controls the window-breaking device to break the window. The CAN communication module is electrically connected to the main control microcontroller module and includes a transceiver chip, a power supply and filtering unit, an enable control unit, a bus connection unit, and a protection circuit unit. The power supply and filtering unit supplies power to the transceiver chip. The enable control unit controls the transceiver chip to enter either working or standby mode. The bus connection unit transmits CAN data. The protection circuit unit protects the transceiver chip from damage. The working status information of the window breaker is synchronized to the system in real time via the CAN communication module. Attached Figure Description

[0018] Figure 1This is a schematic diagram of a sensor-based window-breaking system according to an embodiment of the present invention;

[0019] Figure 2 This is a circuit diagram of the CAN communication module of a sensor-based window breaking system according to an embodiment of this utility model. Detailed Implementation

[0020] To make the objectives, features, and beneficial effects of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described below are merely for explaining this utility model and are not intended to limit it. Furthermore, the same or similar reference numerals may be used in the drawings to refer to the same or similar elements in different embodiments, and descriptions of the same or similar elements in different embodiments, as well as descriptions of prior art elements, features, effects, etc., may be omitted.

[0021] Figure 1 This is a schematic diagram of a sensor-based window-breaking system according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a sensor-based window breaking system according to an embodiment of this utility model.

[0022] Reference Figures 1-2 This utility model provides a sensor-based window breaking system.

[0023] Specifically, the sensor-based window breaking system includes a main control microcontroller module 10, multiple sensors 11, a power management module 12, and a CAN communication module 13. The multiple sensors 11, the power management module 12, and the CAN communication module 13 are electrically connected to the main control microcontroller module 10.

[0024] The power management module 12 is used to supply power to the main control microcontroller module;

[0025] The multiple sensors 11 are used to detect the temperature and water level inside the vehicle in real time. When the temperature or water level exceeds the preset value, a warning signal is sent to the main control microcontroller module 10, and the main control microcontroller module 10 controls the window breaking device to break the window.

[0026] The CAN communication module 13 is electrically connected to the main control microcontroller module 10. The CAN communication module 13 includes a transceiver chip 131, a power supply and filtering unit 132, an enable control unit 133, a bus connection unit 134, and a protection circuit unit 135. The power supply and filtering unit 132 is used to supply power to the transceiver chip 131. The enable control unit 133 is used to control the transceiver chip 131 to enter the working or standby state. The bus connection unit 134 is used to transmit CAN data. The protection circuit unit 135 is used to protect the transceiver chip 131 from damage.

[0027] In a specific implementation, the power supply and filtering unit 132 includes a first capacitor C9, which is used to filter out high-frequency noise on the power line. The first capacitor C9 is 100nF.

[0028] In a specific implementation, the enable control unit 133 includes an STB pin, which is the enable control terminal of the transceiver chip 131.

[0029] In a specific implementation, the bus connection unit 134 includes a first differential signal line CANH and a second differential signal line CANL, which are used to transmit CAN data.

[0030] In a specific implementation, the bus connection unit 134 further includes a first resistor R46 and a second resistor R7. The first resistor R46 and the second resistor R7 are used to match the bus impedance to reduce signal reflection. The first resistor R46 and the second resistor R7 are 2.2KΩ.

[0031] In a specific implementation, the protection circuit unit 135 includes a first transient voltage suppression diode TVS1 and a second transient voltage suppression diode TVS2. The first transient voltage suppression diode TVS1 and the second transient voltage suppression diode TVS2 are used to quickly conduct when a momentary high voltage appears on the bus to clamp the voltage within a safe range.

[0032] In a specific implementation, the transceiver chip 131 is model TJA1044T / 1Z.

[0033] Specifically, the transceiver chip 131 is also electrically connected to the CAN_TX signal line and the CAN_RX signal line. The CAN_TX signal line and the CAN_RX signal line are used to send and receive CAN data, respectively. The CAN_TX and CAN_RX pins cooperate with each other to realize bidirectional communication of data in the CAN bus system.

[0034] In summary, this utility model provides a sensor-based window-breaking system, comprising a main control microcontroller module, multiple sensors, a power management module, and a CAN communication module. The multiple sensors, power management module, and CAN communication module are electrically connected to the main control microcontroller module. The power management module supplies power to the main control microcontroller module. The multiple sensors are used to detect the temperature and water level inside the vehicle in real time. When the temperature or water level exceeds a preset value, a warning signal is sent to the main control microcontroller module, which then controls the window-breaking device to break the window. The CAN communication module is electrically connected to the main control microcontroller module and includes a transceiver chip, a power supply and filtering unit, an enable control unit, a bus connection unit, and a protection circuit unit. The power supply and filtering unit supplies power to the transceiver chip. The enable control unit controls the transceiver chip to enter either working or standby mode. The bus connection unit transmits CAN data. The protection circuit unit protects the transceiver chip from damage. The CAN communication module synchronizes the window-breaking device's operating status information to the system in real time.

[0035] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of this utility model disclosure, even when only a single embodiment is described with respect to a particular feature. The feature examples provided in this utility model disclosure are intended to be illustrative and not limiting, unless otherwise stated. In practice, one or more technical features of the dependent claims may be combined with the technical features of the independent claims as needed and where technically feasible, and may be derived from the technical features of the respective independent claims in any suitable manner rather than solely by the specific combinations listed in the claims.

[0036] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A sensor-based window breaking system, characterized in that, It includes a main control microcontroller module, multiple sensors, a power management module, and a CAN communication module, wherein the multiple sensors, the power management module, and the CAN communication module are electrically connected to the main control microcontroller module. The power management module is used to supply power to the main control microcontroller module; The multiple sensors are used to detect the temperature and water level inside the vehicle in real time. When the temperature or water level exceeds the preset value, a warning signal is sent to the main control microcontroller module, and the main control microcontroller module controls the window breaking device to break the window. The CAN communication module is used for electrical connection with the main control microcontroller module. The CAN communication module includes a transceiver chip, a power supply and filtering unit, an enable control unit, a bus connection unit, and a protection circuit unit. The power supply and filtering unit is used to supply power to the transceiver chip. The enable control unit is used to control the transceiver chip to enter working or standby state. The bus connection unit is used to transmit CAN data. The protection circuit unit is used to protect the transceiver chip from damage.

2. The sensor-based window breaking system according to claim 1, characterized in that, The power supply and filtering unit includes a first capacitor C9, which is used to filter out high-frequency noise on the power line. The first capacitor C9 is 100nF.

3. The sensor-based window-breaking system according to claim 1, characterized in that, The enable control unit includes an STB pin, which is the enable control terminal of the transceiver chip.

4. The sensor-based window-breaking system according to claim 1, characterized in that, The bus connection unit includes a first differential signal line CANH and a second differential signal line CANL, which are used to transmit CAN data.

5. The sensor-based window breaking system according to claim 1, characterized in that, The bus connection unit also includes a first resistor R46 and a second resistor R7, which are used to match the bus impedance to reduce signal reflection. The first resistor R46 and the second resistor R7 are both 2.2KΩ.

6. The sensor-based window-breaking system according to claim 1, characterized in that, The protection circuit unit includes a first transient voltage suppression diode TVS1 and a second transient voltage suppression diode TVS2. The first transient voltage suppression diode TVS1 and the second transient voltage suppression diode TVS2 are used to quickly conduct when a momentary high voltage occurs on the bus to clamp the voltage within a safe range.

7. The sensor-based window breaking system according to claim 1, characterized in that, The transceiver chip is model TJA1044T / 1Z.

Images