Vehicle-mounted autonomous intelligent window breaking system for bus and bus comprising same

Abstract

The utility model relates to a vehicle-mounted autonomous intelligent window breaking system for a bus and the bus comprising the vehicle-mounted autonomous intelligent window breaking system. The window breaking system comprises a fire detector installed in a vehicle and used for obtaining fire information of a detection area in the vehicle; the single-chip microcomputer is installed at a center console of the vehicle and connected with the fire detector, and the single-chip microcomputer is used for receiving the fire information from the fire detector and outputting a control signal according to the fire information; and the glass breaking device is arranged at the position of vehicle window glass, is connected with the single chip microcomputer and is used for implementing window breaking action according to the control signal. The vehicle-mounted autonomous intelligent window breaking system for the bus is low in cost, can collect signals of smoke, fire and the like in the bus in real time when the bus loses power and cannot supply power, autonomously completes an intelligent window breaking task through a power supply system of the system, effectively reduces damage of traffic accidents to personal safety, and improves the safety of the bus. And a foundation is laid for industrialization development of the autonomous intelligent window breaking system and device.

Description

Technical Field

[0001] The utility model relates to the field of intelligent control systems for buses; specifically, the utility model relates to an on-board autonomous intelligent window breaking system for buses and a bus comprising the same. Background Art

[0002] At present, the safety factor of lithium iron phosphate batteries on buses is relatively high, but if an accidental spontaneous combustion occurs, the temperature of the battery can reach 500°C within a few seconds, which is enough to ignite other combustible materials in the bus, thus spreading the fire. Through questionnaire surveys and literature searches, it was found that the safety hammer placed on the bus did not play a decisive role in most accidents: about 80% of people did not know how to use the safety hammer to knock on the window correctly, and about 10% of people had a vague concept of using the safety hammer. Personnel confusion and overloading can also aggravate the casualties caused by accidents. In addition, some buses will lock the safety hammer to prevent it from being stolen, which makes the safety hammer a decoration on the bus. Utility Model Content

[0003] In view of this, the utility model provides an on-board autonomous intelligent window breaking system for a bus and a bus comprising the same, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0004] In order to achieve the above-mentioned object, the first aspect of the utility model provides an on-board autonomous intelligent window breaking system for a bus, wherein the window breaking system comprises:

[0005] A fire detector installed in the vehicle and used to obtain fire information in a detection area in the vehicle;

[0006] A single chip microcomputer, which is installed at the center console of the vehicle and connected to the fire detector, and is used to receive the fire information from the fire detector and output a control signal according to the fire information;

[0007] A glass breaker installed at the vehicle window glass, the glass breaker is connected to the single chip microcomputer and is used to perform a window breaking action according to the control signal.

[0008] In the aforementioned window breaking system, optionally, the single chip microcomputer is arranged at the center console of the vehicle, and the window breaking system further comprises:

[0009] An alarm module, the alarm module comprising an alarm sound prompt circuit and an alarm light prompt circuit, the alarm module being used to receive the control signal and provide an audible alarm and an optical alarm through the alarm sound prompt circuit and the alarm light prompt circuit respectively;

[0010] A power management module, the power management module includes a backup battery, a backup battery voltage detection circuit, a charging circuit and a voltage adjustment circuit, the charging circuit is connected to the backup battery and the voltage adjustment circuit, the backup battery is connected in series with the backup battery voltage detection circuit and in parallel with the voltage adjustment circuit, the backup battery is used to provide backup power to the single-chip microcomputer, the charging circuit is used to cut off the power supply of the backup battery after the single-chip microcomputer is fully charged, and the voltage adjustment circuit is used to adjust the voltage output by the backup battery;

[0011] The tilt sensor is used to obtain a vehicle rollover signal.

[0012] In the aforementioned window breaking system, optionally, the backup battery is charged by vehicle power, and the backup battery is independently arranged in the protective cavity.

[0013] In the aforementioned window breaking system, optionally, the fire detector includes at least one of the following:

[0014] A temperature sensor connected to the single chip microcomputer, the temperature sensor is used to obtain the temperature in the detection area;

[0015] A smoke sensor connected to the single chip microcomputer, the smoke sensor is used to obtain the smoke concentration in the detection area;

[0016] A humidity sensor connected to the single chip microcomputer, the humidity sensor is used to obtain the humidity in the detection area;

[0017] A camera connected to the single chip microcomputer is used to take a picture of the scene in the detection area according to the control signal.

[0018] In the aforementioned broken window system, optionally, the temperature sensor is charged by a parasitic power supply.

[0019] In the aforementioned window breaking system, optionally, the glass breaker comprises:

[0020] A glass-breaking actuator, the glass-breaking actuator comprising a deformable steel sheet, a first end of the deformable steel sheet being fixed to a window frame of the vehicle window glass, a second end of the deformable steel sheet being suspended to the vehicle window glass, and a nail pin being installed at the second end of the deformable steel sheet, a first end of the nail pin being fixed to the second end of the deformable steel sheet, a second end of the nail pin being a pointed end, and the pointed end being close to or pre-contacting the vehicle window glass;

[0021] an excitation mechanism, the excitation mechanism comprising a motor and a cam mounted on an output shaft of the motor, the cam engaging the second end of the deformed steel sheet,

[0022] When the glass breaker is breaking a window, the motor rotates and drives the cam to support the deformed steel sheet away from the window glass, and after the cam rotates to release the deformed steel sheet, the deformed steel sheet returns to its original position and hits the window glass.

[0023] In the window breaking system as described above, optionally, the first end of the deformed steel sheet is fixed by a nut and a fixing column, the first end of the deformed steel sheet is fixed between the nut and the fixing column, and the nut includes a first nut and a second nut with an anti-loosening arrangement.

[0024] In the window breaking system as described above, optionally, the single chip microcomputer is connected to the glass breaker via a relay.

[0025] In the aforementioned window breaking system, optionally, the glass breaker is arranged at the corner of the vehicle window glass.

[0026] In order to achieve the aforementioned objective, a second aspect of the present utility model provides a bus, wherein the bus has a window breaking system as described in any one of the aforementioned first aspects.

[0027] The vehicle-mounted autonomous intelligent window breaking system of the utility model has low cost. When the car loses power or cannot be supplied with electricity, it can collect smoke, fire and other signals in the car in real time, and independently complete the intelligent window breaking task through its own power supply system, effectively reducing the damage to personal safety caused by traffic accidents, and laying the foundation for the development of the industrialization of autonomous intelligent window breaking systems and devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The disclosure of the present invention will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0029] Figure 1 A schematic block diagram of an embodiment of the vehicle-mounted autonomous intelligent window breaking system of the utility model;

[0030] Figure 2 A schematic diagram of the principle of a glass breaker of an embodiment of the vehicle-mounted autonomous intelligent window breaking system of the utility model; and

[0031] Figure 3 It is a schematic diagram of the test results of the glass breaker of the present utility model.

[0032] Figure markings: 1-fire detector; 2-single chip microcomputer; 3-glass breaker; 4-alarm module; 5-alarm sound prompt circuit; 6-alarm light prompt circuit; 7-power management module; 8-backup battery; 9-backup battery voltage detection circuit; 10-charging circuit; 11-voltage adjustment circuit; 12-tilt sensor; 13-temperature sensor; 14-smoke sensor; 15-humidity sensor; 16-camera; 17-deformed steel sheet; 18-first end of the deformed steel sheet; 19-second end of the deformed steel sheet; 20-car window glass; 21-nail pin; 22-first end of the nail pin; 23-second end of the nail pin; 24-motor; 25-cam; 26-output shaft; 27-fixing column; 28-first nut; 29-second nut; 30-relay. DETAILED DESCRIPTION

[0033] With reference to the accompanying drawings and specific embodiments, the composition, features and advantages of the on-board autonomous intelligent window breaking system for buses and the buses including the same will be described below in an illustrative manner. However, all descriptions should not be used to form any limitations on the present invention.

[0034] In addition, for any single technical feature described or implied in the embodiments mentioned in this document, or any single technical feature displayed or implied in the drawings, the present invention still allows for any combination or deletion of these technical features (or their equivalents) without any technical obstacles, and thus it should be considered that these more embodiments according to the present invention are also within the scope of the description in this document.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0036] Figure 1 FIG. 1 is a schematic block diagram of an embodiment of the vehicle-mounted autonomous intelligent window breaking system of the utility model. Figure 1 It can be seen that the window breaking system may include a single chip microcomputer 2 and a fire detector 1, an alarm module 4, a power management module 7, and a tilt sensor 12 respectively connected to the single chip microcomputer 2. The fire detector 1 and the tilt sensor 12 obtain information in the car in real time. When an accident such as a fire or rollover occurs in the bus, the single chip microcomputer 2 can receive fire information from the fire detector in time and output a control signal to control the alarm module 4 to alarm, and control the glass breaker 3 to perform the window breaking action. At the same time, the power management module 7 provides a stable and reliable power supply for the window breaking system.

[0037] Specifically, the real-time processing single-chip microcomputer 2 is the core part of the utility model. In addition to communication, other functional modules of the system are implemented by application software using the single-chip microcomputer 2 as the hardware platform. The single-chip microcomputer 2 in this embodiment can adopt STM32F103C8T6 and be placed at the center console of the vehicle. The window breaking system also includes a switch circuit, which is mainly used by the driver. This circuit is usually in an open circuit state. Once a danger occurs, the driver presses the switch, and the single-chip microcomputer 2 detects that the switch is closed, and can start the glass breaker 3 to break the window at the first time.

[0038] The fire detector 1 is installed in the vehicle and is used to obtain fire information in the detection area in the vehicle. The fire detector 1 may include at least one of a temperature sensor 13, a humidity sensor 15, a smoke sensor 14 and a camera 16 respectively connected to the single-chip computer 2. Among them, the temperature sensor 13 is used to obtain the temperature in the detection area. In this embodiment, the temperature sensor 13 can be a DS18B20 temperature sensor 13, which has a small size, low power consumption, accurate temperature measurement and a wide range.

[0039] In this embodiment, DS18B20 is charged by parasitic power supply, and no local power supply is required for long-distance temperature measurement and the power consumption is relatively low. At the same time, the DS18B20 digital temperature sensor 13 can provide 9-Bit to 12-Bit Celsius temperature measurement accuracy and a user-programmable non-volatile alarm function with over-temperature and low-temperature trigger alarms. In addition, the 1-Wire communication used by DS18B20 only uses one data line (and ground) to communicate with the microcontroller, and the accuracy of the collected data is 12 bits. In this embodiment, the temperature detection range of the sensor is -55°C to +125°C, and it still has an accuracy of ±0.5°C when the temperature is outside the range of -10°C to 85°C.

[0040] In this embodiment, the number of temperature sensors 13 can be selected in the following manner:

[0041]

[0042] Wherein, N is the number of the temperature sensors 13, S is the area of ​​the detection area, A is the area protected by the detector, and K is the correction coefficient. In this embodiment, when the space height is less than 8m, the protection area of ​​a detector is 20 square meters to 30 square meters for a general protection site. The correction coefficient for special-grade objects should be selected from 0.7 to 0.8, the correction coefficient for first-grade protection objects should be selected from 0.8 to 0.9, and the correction coefficient for second-grade protection objects should be selected from 0.9 to 1.0. For a bus with a length of 10 meters, a width of 2.5 meters, and a height of 3 meters, N=2.125 is calculated by the above formula, that is, 3 temperature sensors can be selected.

[0043] It should be noted that the temperature sensor 13 in this embodiment may also be a thermistor. In other optional embodiments, those skilled in the art may select a specific temperature sensor according to the application of the window breaking system.

[0044] The humidity sensor 15 is used to obtain the humidity in the detection area. And the humidity sensor 15 needs to meet specific requirements: because the ambient humidity of the bus may change at any time, the sensor needs to be able to quickly respond to changes in ambient humidity; at the same time, the humidity sensor 15 needs to have a high humidity measurement accuracy to facilitate timely and accurate monitoring of ambient humidity; in addition, the electromagnetic interference inside and outside the bus is large, and the sensor needs to have a certain anti-interference ability to ensure the stability and reliability of humidity measurement; finally, the bus runs for a long time, and the sensor needs to be able to work stably for a long time.

[0045] Based on the above requirements, this embodiment selects a humidity sensor with fast response speed, high accuracy, strong anti-interference ability and good durability, and the installation of the sensor also needs to consider the following factors:

[0046] 1. Sealing: The bus compartment is a relatively closed environment. In order to ensure that the humidity sensor 15 monitors the humidity inside the bus as realistically as possible, a relatively closed installation position needs to be selected.

[0047] 2. Air circulation: Although a relatively closed installation location is required, a certain amount of air circulation is required to facilitate the accuracy of the sensor reading. Therefore, a location close to a car window or ventilation equipment should be selected.

[0048] 3. Avoid direct sunlight: Sunlight will interfere with the measurement of the humidity sensor, so the sensor should be installed in a place where it is exposed to direct sunlight.

[0049] 4. Convenient installation and maintenance: The installation location of the sensor should be convenient enough for installation and maintenance, so that the sensor can be maintained and replaced in time.

[0050] Based on the above reasons, in this embodiment, the humidity sensor 15 should be installed on the top of the bus or near the roof inside the bus, which can ensure the accuracy of monitoring and the circulation of air, and is convenient to install and maintain.

[0051] The smoke sensor 14 is used to obtain the smoke concentration in the detection area. In this embodiment, the smoke sensor 14 uses a smoke sensor for monitoring combustible gas smoke, which has the advantages of high sensitivity, fast response recovery and excellent stability. The sensitivity of the smoke sensor 14 is 0.15-0.3 dB / m, and the monitoring accuracy of the temperature sensor 13 and the humidity sensor 15 meets the national standards and meets the requirements of dustproof, insect-proof, anti-white light interference and anti-seismic design. In this system, when the smoke sense reaches 5% OBS / M-15% OBS / M, the single-chip microcomputer 2 will control the alarm module 4 to alarm. Since the smoke rises in a spiral, the smoke sensor 14 is installed above the vehicle body, such as on the top of the bus or near the roof of the car, for easy detection.

[0052] The camera 16 is used to take pictures of the scene in the detection area according to the control signal and transmit it to the single-chip microcomputer 2. The single-chip microcomputer 2 can determine whether a fire has occurred in the car according to whether there is a fire mark in the picture, thereby ensuring that the window breaking system can accurately judge the dangerous situation in the car and avoiding the occurrence of malfunction of the glass breaker 3.

[0053] In this embodiment, the fire detector 1 may include a temperature sensor 13, a humidity sensor 15, a smoke sensor 14 and a camera 16. In an optional embodiment, the fire detector may also include one or more of the above four devices. In other optional embodiments, the fire detector may also include other types of sensors.

[0054] In this embodiment, the tilt sensor 12 can obtain a car rollover signal. When the vehicle rolls over, the signal is captured by the single-chip microcomputer 2, and the single-chip microcomputer 2 immediately activates the glass breaker 3 so that the trapped people can escape through the car window in time.

[0055] It should be noted that the above detection area refers to the location in the bus compartment where dangerous situations are prone to occur. For example, in order to deal with the spontaneous combustion of the bus battery, the detection area can be the location near the bus battery or inside the compartment; in order to deal with the bus flipping, the detection area can be the cockpit, the compartment and other locations where the flipping signal can be obtained in time; in order to deal with the bus being flooded, the detection area can be the doors, windows and other water inlets or inside the compartment.

[0056] When a car is in an accident such as a fire or rollover, the signals obtained by the temperature sensor 13, humidity sensor 15, smoke sensor 14 and tilt sensor 12 will exceed the preset threshold, and the single-chip microcomputer 2 will control the glass breaker 3 to break the glass. Most of the glass breakers on the market are non-automatic, and the number of signals collected by the single-chip microcomputer is also limited, and the power supply for automatic control also comes from the car battery. When a dangerous situation occurs, the power module and power supply module of the car may be damaged to a certain extent, so that the power supply module cannot output reliable power. Therefore, the utility model is provided with an independent power management module 7.

[0057] from Figure 1 As can be seen from the figure, the power management module 7 may include a backup battery 8, a backup battery voltage detection circuit 9, a charging circuit 10 and a voltage adjustment circuit 11. The charging circuit 10 is connected to the backup battery 8 and the voltage adjustment circuit 11. The backup battery 8 is connected in series with the backup battery voltage detection circuit 9 and in parallel with the voltage adjustment circuit 11. The backup battery 8 is used to provide a backup power supply to the single-chip computer 2. The charging circuit 10 is used to cut off the power supply of the backup battery 8 after the single-chip computer 2 is fully charged. The voltage adjustment circuit 11 is used to adjust the voltage output by the backup battery 8.

[0058] In this embodiment, the backup battery 8 is a lead-acid battery with an output voltage of 12 volts and a current of 2A, which can meet the power supply requirements of the glass breaker 3. This battery is independent of the internal battery of the car and can be installed in a protective cavity. In this embodiment, the protective cavity can be a fireproof and waterproof iron shell. In an optional embodiment, the protective cavity can also be other high-voltage resistant metal shells. In other optional embodiments, the protective cavity also selects other suitable devices that can prevent the backup battery 8 from being disturbed by abnormal external conditions. In this way, even if the car battery is damaged, the glass breaker 3 can still complete the task under the power supply of the backup battery 8.

[0059] In this embodiment, the vehicle power charges the backup battery 8 through the power management module 7, and the charging current is 1A. After charging is completed, the charging indicator turns green. The backup battery voltage detection circuit 9 is used to detect whether the backup battery 8 is fully charged and receive the output voltage of the backup battery 8 and transmit it to the single-chip computer 2. When the backup battery 8 is fully charged, the single-chip computer 2 will cut off the connection between the backup battery 8 and the vehicle power through the charging circuit 10, thereby cutting off the power supply of the backup battery 8. Since the voltage standards of different interfaces of the single-chip computer 2 are different, the voltage adjustment circuit 11 is used to adjust the voltage output by the backup battery 8 to the required voltage of the single-chip computer 2.

[0060] from Figure 1It can also be seen that the alarm module 4 may include an alarm sound prompt circuit 5 and an alarm light prompt circuit. The alarm module 4 is used to receive a control signal and provide an audible alarm and an optical alarm through the alarm sound prompt circuit 5 and the alarm light prompt circuit 6 respectively. When a danger occurs, the single-chip microcomputer 2 controls the glass breaker 3 to obtain power from the backup battery 8 to work normally and complete the glass breaking task; on the other hand, the single-chip microcomputer 2 outputs a signal to start the alarm system to remind the people in the car to escape in time.

[0061] from Figure 1 It can also be seen that the single chip computer 2 can be connected to the glass breaker 3 through the relay 30.

[0062] Figure 2 The schematic diagram of the glass breaker of one embodiment of the vehicle-mounted autonomous intelligent window breaking system of the utility model is shown in FIG. In this embodiment, the glass breaker 3 may include a glass breaking actuator and an excitation mechanism, the glass breaking actuator may include a deformable steel sheet 17, and the excitation mechanism may include a cam 25.

[0063] from Figure 2 It can be seen that the first end 18 of the deformed steel sheet is fixed to the window frame of the vehicle window glass 20, the second end 19 of the deformed steel sheet is suspended to the vehicle window glass 20, and a nail pin 21 is installed at the second end, the first end 22 of the nail pin is fixed to the second end 19 of the deformed steel sheet, the second end 23 of the nail pin is a pointed end, and the pointed end is close to or pre-contacts the vehicle window glass 20, and the cam 25 is installed on the output shaft 26 of the motor 24 and engages the second end 19 of the deformed steel sheet. The first end 18 of the deformed steel sheet is fixed by a nut and a fixing column 27, and the first end 18 of the deformed steel sheet is fixed between the nut and the fixing column 27, and the nuts 28 and 29 include a first nut 28 and a second nut 29 with an anti-loosening arrangement.

[0064] When the glass breaker 3 is breaking a window, the motor 24 rotates and drives the cam 25 to support the deformed steel sheet 17 to undergo elastic deformation so as to move away from the vehicle window glass 20. After the cam 25 rotates to release the deformed steel sheet 17, the deformed steel sheet 17 rebounds and resets and hits the vehicle window glass 20. During this process, the motor 24 is always powered by 12V.

[0065] The striking position of the glass breaker 3 should be at the corner of the car window, and in this embodiment, the car window glass 20 can be tempered glass. On the one hand, from the perspective of strength, the car window glass 20 is a prestressed structure. Under high temperature conditions, the interior of the car window glass 20 expands outward, but the surface has been cooled. This will form two forces, one outward tensile stress and one inward compressive stress. The corners of the car window glass 20 are the areas where stress concentration is most likely to occur. Under the same external force, the structure is also the most likely to be damaged. The force required to smash the corner area of ​​the car window glass 20 is much smaller than that in the middle area. On the other hand, from the perspective of energy, the car window glass 20 can be imagined as an elastic membrane. The glass will deform. When the middle area is subjected to external force, the glass will instantly protrude to one side, which can absorb part of the energy and is not easy to be broken. If the corner is struck, the deformation is small due to the fixed effect of the frame close to the car window, so that the energy of the strike is maximized and it is easy to break. Therefore, in this embodiment, the glass breaker 3 is set at the corner of the car window glass 20.

[0066] Figure 3 Schematic diagram of the test results of the glass breaker 3 of the utility model, Figure 3 The figure shows the situation that the glass breaker 3 hits the five different positions of the window glass 20. The rectangle in the figure represents the 5 mm window glass 20, and the circle in the figure represents the hitting position of the glass breaker 3. Without adding a sensor, the driver presses the switch, the single-chip microcomputer 2 detects the switch signal, emits an alarm sound, and hits the corresponding installation position three times in a row, and the window glass 20 can be successfully broken at each position.

[0067] The utility model also provides a bus, which is provided with the above-mentioned window breaking system.

[0068] In summary, the window breaking system of the utility model has its own battery system. The battery charging is effectively monitored by the single-chip microcomputer 2, and the system power supply function is completed autonomously. Even if the power supply inside the car fails, the built-in battery still powers the sensor. At the same time, the window breaking system can realize autonomous judgment and decision-making under multiple factors and different situations. When a dangerous situation such as a fire occurs inside the bus, the single-chip microcomputer 2 collects the information obtained by the smoke sensor 14, temperature sensor 13, humidity sensor 15, tilt sensor 12 and camera 16 in real time, and comprehensively analyzes whether there is really a fire in the car at this time. In addition, the window breaking system only takes 1 second from detecting an effective signal to breaking the glass. Within 1 second, the window breaking system can simultaneously complete the glass breaking action at the position where the glass breaking module is installed in the entire car, winning precious time for escape. Finally, the window breaking system is low-cost and easy to implement.

[0069] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above implementation without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the scope of the present invention.

Claims

1. An autonomous intelligent window breaking system for buses, characterized in that: The broken window system comprises: A fire detector (1), the fire detector (1) being installed in a vehicle and used to obtain fire information in a detection area in the vehicle; A single-chip computer (2), the single-chip computer (2) being installed at the center console of the vehicle and connected to the fire detector (1), the single-chip computer (2) being used to receive the fire information from the fire detector (1) and output a control signal according to the fire information; A glass breaker (3) installed at a vehicle window glass (20), the glass breaker (3) being connected to the single chip computer (2) and being used to perform a window breaking action according to the control signal.

2. The window breaking system according to claim 1, characterized in that: The single chip microcomputer (2) is arranged at the center console of the vehicle, and the window breaking system further comprises: An alarm module (4), the alarm module (4) comprising an alarm sound prompt circuit (5) and an alarm light prompt circuit (6), the alarm module (4) being used to receive the control signal and provide an audible alarm and a light alarm respectively through the alarm sound prompt circuit (5) and the alarm light prompt circuit (6); A power management module (7), the power management module (7) comprising a backup battery (8), a backup battery voltage detection circuit (9), a charging circuit (10) and a voltage adjustment circuit (11), the charging circuit (10) being connected to the backup battery (8) and the voltage adjustment circuit (11), the backup battery (8) being connected in series with the backup battery voltage detection circuit (9) and in parallel with the voltage adjustment circuit (11), the backup battery (8) being used to provide backup power to the single-chip computer (2), the charging circuit (10) being used to cut off the power supply of the backup battery (8) after the single-chip computer (2) is fully charged, and the voltage adjustment circuit (11) being used to adjust the voltage output by the backup battery (8); A tilt sensor (12), wherein the tilt sensor (12) is used to obtain a vehicle rollover signal.

3. The window breaking system according to claim 2, characterized in that: The backup battery (8) is charged by vehicle power, and the backup battery (8) is independently arranged in the protective cavity.

4. The window breaking system according to claim 1, characterized in that: The fire detector (1) comprises at least one of the following: A temperature sensor (13) connected to the single chip computer (2), the temperature sensor (13) being used to obtain the temperature within the detection area; A smoke sensor (14) connected to the single chip computer (2), the smoke sensor (14) being used to obtain the smoke concentration in the detection area; A humidity sensor (15) connected to the single chip computer (2), the humidity sensor (15) being used to obtain the humidity in the detection area; A camera (16) connected to the single chip computer (2), the camera (16) being used to take a picture of the scene within the detection area according to the control signal.

5. The window breaking system according to claim 4, characterized in that: The temperature sensor (13) is charged by means of a parasitic power supply.

6. The window breaking system according to claim 1, characterized in that: The glass breaker (3) comprises: A glass-breaking actuator, the glass-breaking actuator comprising a deformable steel sheet (17), the first end (18) of the deformable steel sheet (17) being fixed to the window frame of the vehicle window glass, the second end (19) of the deformable steel sheet (17) being suspended to the vehicle window glass (20), and a nail pin (21) being installed at the second end (19) of the deformable steel sheet (17), the first end (22) of the nail pin (21) being fixed to the second end (19) of the deformable steel sheet (17), the second end (23) of the nail pin (21) being a pointed end, the pointed end being close to or pre-contacting the vehicle window glass (20); The excitation mechanism comprises a motor (24) and a cam (25) mounted on an output shaft (26) of the motor (24), wherein the cam (25) engages with a second end (19) of the deformable steel sheet (17), and when the glass breaker (3) is used to break a window, the motor (24) rotates and drives the cam (25) to support the deformable steel sheet (17) away from the vehicle window glass (20), and after the cam (25) rotates to release the deformable steel sheet (17), the deformable steel sheet (17) is reset and strikes the vehicle window glass (20).

7. The window breaking system according to claim 6, characterized in that: The first end (18) of the deformed steel sheet (17) is fixed by a nut and a fixing column (27), the first end (18) of the deformed steel sheet (17) is fixed between the nut and the fixing column (27), and the nut comprises a first nut (28) and a second nut (29) for preventing loosening.

8. The window breaking system according to claim 1, characterized in that: The single chip computer (2) is connected to the glass breaker (3) via a relay (30).

9. The window breaking system according to claim 1, characterized in that: The glass breaker (3) is arranged at the corner of the vehicle window glass (20).

10. A bus, characterized in that: The bus has the window breaking system according to any one of claims 1 to 9.

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