CN114699674A - Safety protection method, system, equipment and storage medium - Google Patents
Safety protection method, system, equipment and storage medium Download PDFInfo
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- CN114699674A CN114699674A CN202210508072.1A CN202210508072A CN114699674A CN 114699674 A CN114699674 A CN 114699674A CN 202210508072 A CN202210508072 A CN 202210508072A CN 114699674 A CN114699674 A CN 114699674A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/46—Construction of the actuator
- A62C37/48—Thermally sensitive initiators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a safety protection method, a system, equipment and a storage medium, and belongs to the technical field of automobile safety. According to the method, the first temperature of the component to be monitored is obtained, and the second temperature of the cabin body to be monitored is obtained; when the first temperature or the second temperature meets the fire extinguishing condition, determining that a fire occurs, and starting a first fire extinguishing mode; sending a loop cut-off request to the vehicle control unit so that the vehicle control unit starts a second fire extinguishing mode to cut off a high-pressure loop in which a fire occurs, and realizing fire control; by the mode, the temperatures of the high-pressure component and the high-pressure cabin body are monitored in real time, when the temperatures meet fire extinguishing conditions, a secondary fire extinguishing mode is implemented, the fire is controlled by cooling and extinguishing the fire through the cooling fire extinguishing agent and cutting off the high-pressure loop, the fire is prevented from being re-ignited, and the fire control efficiency in the high-pressure cabin is improved.
Description
Technical Field
The invention relates to the field of automobile safety, in particular to a safety protection method, a safety protection system, safety protection equipment and a storage medium.
Background
In recent years, new energy passenger cars are rapidly developed, and the new energy passenger cars are exposed to light even in the event of a fire, so that the requirement of safety protection on the hyperbaric chambers of the new energy passenger cars is increasingly important. At present, B-level voltage components such as a power battery pack, a high-voltage distribution box, an integrated controller, a high-voltage electric air compressor, a high-voltage electric steering pump and a high-voltage wire harness are installed in a high-voltage cabin of a new energy bus, the working voltage is usually 400VDC to 800VDC, and the high-voltage connection parts of the high-voltage components are abnormal in connection and have the risk of heating and firing or the high-voltage components break down and fire and burn.
At present in order to take precautions against above-mentioned risk of starting a fire, arrange dry powder fire extinguisher device in the hyperbaric chamber of new forms of energy passenger train usually, when taking place to fire the burning in the hyperbaric chamber body, start fire extinguisher blowout dry powder in order to put out a fire. However, such fire extinguishing devices for high pressure chambers require flame to be burned until the temperature is sensed or the temperature of the chamber reaches a certain value, and the fire extinguishing devices can be started, so that the fire prevention and control time lags behind, and the fire cannot be extinguished in time. Meanwhile, the dry powder fire extinguishing device realizes fire extinguishing by interrupting the chain reaction of combustion or isolating oxygen, and can not prevent reignition at the ignition point, so that the fire situation control efficiency of the traditional fire extinguishing mode in the high-pressure cabin is low.
Disclosure of Invention
The invention mainly aims to provide a safety protection method, a safety protection system, safety protection equipment and a storage medium, and aims to solve the technical problem of low fire control efficiency in a new energy hyperbaric chamber.
In order to achieve the above object, the present invention provides a safety protection method, comprising the steps of:
acquiring a first temperature of a component to be monitored, and acquiring a second temperature of a cabin body to be monitored;
when the first temperature or the second temperature meets the fire extinguishing condition, determining that a fire occurs, and starting a first fire extinguishing mode;
and sending a loop cut-off request to the vehicle control unit so as to enable the vehicle control unit to start a second fire extinguishing mode, and cut off a high-pressure loop in which a fire occurs, so as to realize fire control.
Optionally, before the step of obtaining a first temperature of the component to be monitored and obtaining a second temperature of the cabin to be monitored, the method comprises:
controlling a first wire harness to acquire a first temperature of the component to be monitored;
and controlling a second wire harness to acquire a second temperature of the cabin to be monitored.
Optionally, the fire suppression condition comprises the first temperature being greater than a first high temperature threshold, and/or the second temperature being greater than a second high temperature threshold;
the first fire extinguishing mode is to activate the solenoid valve to cause the fire extinguishing apparatus to spray the fire extinguishing agent to the fire occurrence point.
Optionally, after the step of obtaining a first temperature of the component to be monitored and obtaining a second temperature of the cabin to be monitored, the method comprises:
when the first temperature is smaller than a first low-temperature threshold value and the second temperature is smaller than a second low-temperature threshold value, the first fire extinguishing mode is initialized, and the electromagnetic valve is controlled to be closed.
Optionally, the step of obtaining a first temperature of the component to be monitored and obtaining a second temperature of the cabin to be monitored includes:
based on a preset time interval, acquiring the first temperature of the component to be monitored, and acquiring the second temperature of the cabin body to be monitored.
Optionally, after the steps of acquiring the first temperature of the component to be monitored and acquiring the second temperature of the cabin to be monitored based on the preset time interval, the method includes:
calculating the change rate of the first temperature to obtain a first change rate;
calculating the change rate of the second temperature to obtain a second change rate;
when the first rate of change is greater than a first change threshold, and/or
And when the second change rate is greater than a second change threshold value, outputting an early warning signal to warn an administrator to prevent a fire.
In addition, to achieve the above object, the present invention also provides a safety protection system, including:
the fire extinguishing unit is used for controlling the fire extinguishing equipment to cool and extinguish fire at a fire occurrence part when the fire occurs;
the fire-fighting controller is used for acquiring temperature data in the high-pressure cabin through the signal wire harness, acquiring temperature data of high-pressure components in the high-pressure cabin through the control wire harness, and controlling the fire-fighting unit to perform cooling and fire-fighting work when a fire occurs;
the vehicle control unit is used for controlling the high-voltage contactor in the main circuit to be disconnected and the exciting fuse to be fused so as to prevent the fire from reigniting;
and the monitoring display screen is used for displaying the fire early warning signal so as to realize fire warning or early warning.
Optionally, control fire extinguishing apparatus and take place the in-process that the position put out a fire to the condition of a fire and cool down, the unit control of putting out a fire with when the valve that fire extinguishing apparatus connects is opened, the position takes place at the condition of a fire with the fire extinguishing agent injection in the fire extinguishing apparatus to accomplish the work of putting out a fire.
In addition, to achieve the above object, the present invention further provides a safety protection device, which includes a memory, a processor, and a safety protection program stored in the memory and executable on the processor, wherein the safety protection program implements the steps of the safety protection method when executed by the processor.
In addition, to achieve the above object, the present application also provides a computer readable storage medium, on which a security program is stored, and the security program implements the steps of the security protection method as described above when executed by a processor.
The method comprises the steps of obtaining a first temperature of a component to be monitored and obtaining a second temperature of a cabin body to be monitored; when the first temperature or the second temperature meets the fire extinguishing condition, determining that a fire occurs, and starting a first fire extinguishing mode; sending a loop cut-off request to the vehicle control unit so that the vehicle control unit starts a second fire extinguishing mode to cut off a high-pressure loop in which a fire occurs, and realizing fire control; in this way, the temperature of the high-pressure component and the high-pressure cabin body is monitored in real time, when the temperature meets the fire extinguishing condition, the secondary fire extinguishing mode is implemented, the fire is extinguished through cooling the fire extinguishing agent and the high-pressure loop is cut off to realize the control on the fire, the fire is prevented from being reignited, and the fire control efficiency in the high-pressure cabin is improved.
Drawings
FIG. 1 is a schematic structural diagram of a safety protection device of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a first embodiment of the security protection method of the present invention;
FIG. 3 is a schematic structural diagram of a third embodiment of the safety protection method according to the present invention;
fig. 4 is a schematic diagram of a detailed functional module of the safety protection device of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a safety protection device of a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the safety shield apparatus may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the terminal may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. Such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display screen according to the brightness of ambient light, and a proximity sensor that may turn off the display screen and/or the backlight when the mobile terminal is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when the mobile terminal is stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer and tapping) and the like for recognizing the attitude of the mobile terminal; of course, the mobile terminal may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.
Those skilled in the art will appreciate that the configuration shown in figure 1 does not constitute a limitation of safety shield apparatus and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of storage medium, may include therein an operating system, a data storage module, a network communication module, a user interface module, and a security program.
In the safety device shown in fig. 1, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 of the safety protection device of the present invention may be disposed in the safety protection device, and the safety protection device calls the safety protection program stored in the memory 1005 through the processor 1001 and performs the following operations:
acquiring a first temperature of a component to be monitored, and acquiring a second temperature of a cabin body to be monitored;
when the first temperature or the second temperature meets the fire extinguishing condition, determining that a fire occurs, and starting a first fire extinguishing mode;
and sending a loop cut-off request to the vehicle control unit so as to enable the vehicle control unit to start a second fire extinguishing mode, and cut off a high-pressure loop in which a fire occurs, so as to realize fire control.
Further, the processor 1001 may call a bidirectional remote procedure call stored in the memory 1005, and also perform the following operations:
controlling a first wire harness to acquire a first temperature of the component to be monitored;
and controlling a second wire harness to acquire a second temperature of the cabin to be monitored.
Further, the processor 1001 may call a bidirectional remote procedure call stored in the memory 1005, and also perform the following operations:
when the first temperature is smaller than a first low-temperature threshold value and the second temperature is smaller than a second low-temperature threshold value, the first fire extinguishing mode is initialized, and the electromagnetic valve is controlled to be closed.
Further, the processor 1001 may call a bidirectional remote procedure call stored in the memory 1005, and also perform the following operations:
based on a preset time interval, acquiring the first temperature of the component to be monitored, and acquiring the second temperature of the cabin body to be monitored.
Further, the processor 1001 may call a bidirectional remote procedure call stored in the memory 1005, and also perform the following operations:
calculating the change rate of the first temperature to obtain a first change rate;
calculating the change rate of the second temperature to obtain a second change rate;
when the first rate of change is greater than a first change threshold, and/or
And when the second change rate is greater than a second change threshold value, outputting an early warning signal to warn an administrator to prevent a fire.
Referring to fig. 2, an embodiment of the present invention provides a security protection method, and fig. 2 is a flowchart illustrating a first embodiment of a security protection method according to the present invention.
While embodiments of the security method are provided in the present application, it should be noted that although a logical order is shown in the flow chart, in some cases, the steps shown or described may be performed in an order different from that shown or described herein. The execution main body of each embodiment of the safety protection method is a safety protection system. It should be noted that the safety protection method is applied to a safety protection device, the safety protection device belongs to a safety protection system, and the safety protection system belongs to safety protection equipment.
In this embodiment, the safety protection method includes:
step S10: acquiring a first temperature of a component to be monitored, and acquiring a second temperature of a cabin body to be monitored;
in this embodiment, the internal temperatures of high-voltage components such as a power battery pack, a high-voltage distribution box, an integrated Controller and the like in a high-voltage cabin of a new energy bus are collected and analyzed by accessing a Controller Area Network (CAN) Network, that is, a first temperature Ta of a component to be monitored is obtained, where the component to be monitored includes the high-voltage component in the high-voltage cabin. The temperature of the cabin body to be monitored (the high-pressure cabin body) is monitored to obtain the internal temperature of the high-pressure cabin body, and the second temperature T is obtained. In the following, the component to be monitored is a high-pressure component in the high-pressure cabin, and the cabin to be monitored is a high-pressure cabin, which are described as examples, and other embodiments are basically the same and are not described herein again.
Further, before the step of acquiring the first temperature of the component to be monitored and the step of acquiring the second temperature of the cabin to be monitored, the method comprises the following steps A1-A2:
step A1, controlling a first wire harness to acquire a first temperature of the component to be monitored;
and A2, controlling a second wire harness to acquire a second temperature of the cabin to be monitored.
In this embodiment, a first wire harness is set to collect the temperature of a component to be monitored, the first wire harness CAN be a CAN communication wire harness, and then the temperature data of a high-voltage component in a high-voltage cabin of a passenger car is collected through the CAN communication wire harness to obtain a first temperature Ta. And acquiring the temperature of the cabin body to be monitored through a second wire harness to obtain a second temperature, wherein the second wire harness can be a signal wire harness, and acquiring the temperature data of a temperature sensor arranged in the high-pressure gas cabin or the cabin body to be monitored through the signal wire harness to obtain a second temperature T. It can be understood that, in order to improve the accuracy of monitoring the temperature of the cabin to be monitored, a temperature sensor can be arranged at a specific position in the cabin to be monitored so as to ensure that the monitored temperature positions are consistent each time.
It should be noted that, in the process of collecting the temperature of the component to be monitored, a temperature sensor CAN be arranged at one end of the CAN communication harness or at the position of the component to be monitored, the temperature of the high-voltage component is monitored through the temperature sensor, the temperature is fed back to the monitoring display screen through the CAN communication harness, and the real-time temperature of the component to be monitored or the high-voltage component is displayed through the monitoring display screen so as to be checked by a manager.
Step S20: when the first temperature or the second temperature meets the fire extinguishing condition, determining that a fire occurs, and starting a first fire extinguishing mode;
in this embodiment, a fire extinguishing condition is set, which means that it is determined that a fire occurs and a fire extinguishing measure is to be started for fire extinguishing, and it can be understood that when the monitored first temperature Ta of the high-pressure component and the internal temperature T of the high-pressure compartment reach the fire extinguishing condition, it is determined that the fire has occurred or is about to occur, and then a first fire extinguishing mode is immediately started, which may be a cooling fire extinguishing mode, for example, a cooling fire extinguishing by the injection of a fire extinguishing agent.
As an example, an environment-friendly cooling type fire extinguishing agent can be selected, and compared with a conventional dry powder fire extinguishing agent, the environment-friendly cooling type fire extinguishing agent is free of pollution and easy to clean.
As an example, the fire extinguishing condition includes that the first temperature is greater than a first high temperature threshold value, and/or the second temperature is greater than a second high temperature threshold value, and the first fire extinguishing mode is to activate a solenoid valve to cause the fire extinguishing apparatus to spray the fire extinguishing agent to the fire occurrence point. It will be appreciated that if the first high temperature threshold is Tmax1The second high temperature threshold is Tmax2When Ta > T is detectedmax1Indicating that the first temperature satisfies the fire extinguishing condition, or T > Tmax2And when the second temperature meets the fire extinguishing condition, the fire is judged to be about to occur or to have occurred, the electromagnetic valve of the fire extinguishing equipment is started, and the cooling type fire extinguishing agent is sprayed to the risk point or the fire occurrence position to realize first fire extinguishing. It should be noted that the first temperature and the second temperature can satisfy the fire extinguishing condition separately, also can all satisfy the fire extinguishing condition, that is to say, between the first temperature and the second temperature, when a data satisfies the fire extinguishing condition, all can start first mode of putting out a fire, put out a fire.
Further, after acquiring the first temperature of the component to be monitored and acquiring the second temperature of the cabin to be monitored, the method includes the following steps B1:
and step B1, when the first temperature is lower than a first low-temperature threshold value and the second temperature is lower than a second low-temperature threshold value, initializing the first fire extinguishing mode and controlling the electromagnetic valve to be closed.
In the present embodiment, when the first temperature Ta is less than the first high temperature threshold Tmin1When, i.e. Ta < Tmin1At the first temperatureThe degree Ta does not satisfy the fire extinguishing condition, at this time, the first fire extinguishing mode is turned off. It can be understood that if first fire extinguishing mode is the starting solenoid valve to make the cooling type in the extinguishing device put out a fire and spray in the position takes place for the condition of a fire, realizes putting out a fire, then closes first fire extinguishing mode for closing the solenoid valve, so that extinguishing device closes, stops to spray extinguishing agent.
As an example, when the first temperature T is less than the second high temperature threshold Tmin2When, i.e. T < Tmin2At this time, the second temperature T does not satisfy the fire extinguishing condition, and at this time, the first fire extinguishing mode is turned off. Namely, the electromagnetic valve is closed, and the fire extinguishing agent is stopped from being sprayed, so that the primary temperature reduction and fire extinguishing are realized.
It should be noted that the temperature in the high-pressure part and the high-pressure cabin is monitored in real time through the first wire harness and the second wire harness to obtain a first temperature and a second temperature, when the first temperature or the second temperature meets the fire extinguishing condition, the fire extinguishing mode is started, and when the first temperature and the second temperature do not meet the fire extinguishing condition, the first fire extinguishing mode is closed or the state that the first fire extinguishing mode is not opened is kept. That is, the start, stop, or maintenance of the first fire suppression mode is controlled in real time with the first temperature and the second temperature monitored in real time. Therefore, the fire occurrence part is sprayed and cooled for many times according to the temperature signal monitored in real time, the combustion process is slowed down, or the re-combustion open fire is extinguished.
Step S30: and sending a loop cut-off request to the vehicle control unit so as to enable the vehicle control unit to start a second fire extinguishing mode, and cut off a high-pressure loop in which a fire occurs, so as to realize fire control.
In this embodiment, since the occurrence of fire in the hyperbaric chamber is mainly caused by abnormal heat generation of the high-pressure connection portion of the high-pressure component, when a large current is continuously present in the high-pressure main circuit, the failure point generates heat continuously and is easily reignited, and therefore, on the basis of the first fire extinguishing mode, a secondary fire extinguishing is required to prevent reignition of the fire. Specifically, when a first fire extinguishing mode is started, a loop cut-off request is sent to request the vehicle control unit to start a second fire extinguishing mode to extinguish fire, the second fire extinguishing mode comprises the steps of controlling a high-voltage contactor in a high-voltage main loop in which a fire occurs to be disconnected and exciting a fuse to be fused, so that when the fire occurs, other controllers are associated to cut off the high-voltage main loop, a hidden danger point or a fire point temperature rise energy source is cut off, and the fire reignition is avoided.
The safety protection method comprises the following steps: acquiring a first temperature of a component to be monitored, and acquiring a second temperature of a cabin body to be monitored; when the first temperature or the second temperature meets the fire extinguishing condition, determining that a fire occurs, and starting a first fire extinguishing mode; sending a loop cut-off request to the vehicle control unit so that the vehicle control unit starts a second fire extinguishing mode to cut off a high-pressure loop in which a fire occurs, and realizing fire control; in this way, the temperature of the high-pressure component and the high-pressure cabin body is monitored in real time, when the temperature meets the fire extinguishing condition, the secondary fire extinguishing mode is implemented, the fire is extinguished through cooling the fire extinguishing agent and the high-pressure loop is cut off to realize the control on the fire, the fire is prevented from being reignited, and the fire control efficiency in the high-pressure cabin is improved.
Further, based on the first embodiment, a second embodiment of the security protection method of the present application is provided. In this embodiment, the acquiring the first temperature of the component to be monitored and the acquiring the second temperature of the cabin to be monitored includes the following steps S11:
step S11, acquiring the first temperature of the component to be monitored and acquiring the second temperature of the cabin to be monitored based on a preset time interval.
In this embodiment, a frequency for real-time monitoring is set, and based on a time interval in a preset frequency, the temperature of the component to be monitored is periodically obtained to obtain a plurality of first temperatures, and similarly, the temperature of the cabin to be monitored is periodically obtained to obtain a plurality of second temperatures.
Further, after acquiring the first temperature of the component to be monitored and acquiring the second temperature of the cabin to be monitored based on the preset time interval, the method includes the following steps S50-S70:
step S50, calculating the change rate of the first temperature to obtain a first change rate;
step S60, calculating the change rate of the second temperature to obtain a second change rate;
step S70, when the first change rate is larger than the first change threshold, and/or
And when the second change rate is greater than a second change threshold value, outputting an early warning signal to warn an administrator to prevent a fire.
In this embodiment, the change rate between two first temperatures of a preset time interval is calculated to obtain a first change rate Δ Ta, and when the first change rate Δ Ta is greater than a first change threshold X, that is, Δ Ta > X, an early warning signal is output to warn an administrator to prevent a fire. And calculating the change rate between two second temperatures of a preset time interval to obtain a second change rate delta T, and outputting an early warning signal when the second change rate delta T is greater than a second change threshold Y, namely delta T is greater than Y.
It should be noted that the early warning signal may be displayed in the form of sound, image display, vibration, and the like.
Further, based on the first embodiment or the second embodiment, a safety protection system of a third embodiment of the safety protection method of the present application is provided, and referring to fig. 3, the safety protection system includes:
the fire extinguishing unit is used for controlling the fire extinguishing equipment to cool and extinguish fire at a fire occurrence part when the fire occurs;
the fire-fighting controller is used for acquiring temperature data in the high-pressure cabin through the signal wire harness, acquiring temperature data of high-pressure components in the high-pressure cabin through the control wire harness, and controlling the fire-fighting unit to perform cooling and fire-fighting work when a fire occurs;
the vehicle control unit is used for controlling the high-voltage contactor in the main circuit to be disconnected and the exciting fuse to be fused so as to prevent the fire from reigniting;
and the monitoring display screen is used for displaying the fire early warning signal so as to realize fire warning or early warning.
In this embodiment, there are two kinds of mode, mode one is the early warning, and mode two is for cooling to put out a fire in the hyperbaric chamber safety protection system. The fire-fighting controller acquires temperature data T of a temperature sensor arranged at a characteristic position in a high-voltage electric cabin through a signal wire harness (III) to obtain a second temperature T, acquires temperature data Ta inside a high-voltage part through a CAN communication wire harness (IV) to obtain a first temperature Ta, monitors the temperature T of the high-voltage cabin and the temperature Ta inside the high-voltage part simultaneously by a system, displays the temperature T and the temperature Ta on a monitoring display screen, and allows managers to check the temperature of the high-voltage part and the high-voltage cabin at any time.
When the change rate Delta Ta of T along with time is more than X or the change rate Delta T of T along with time is more than Y, an early warning signal is sent to a driver or a manager, position and temperature information is displayed on a monitoring display screen, and sound and light alarm is sent to realize early warning;
when Ta > T is detectedmax1Or T > Tmax2When the fire extinguishing device is used, the fire extinguishing controller controls the fire extinguishing unit through the control wire harness, when the fire extinguishing unit controls a valve connected with the fire extinguishing device to be opened, the fire extinguishing agent in the fire extinguishing device is sprayed to the fire occurrence position to complete fire extinguishing work, wherein the fire extinguishing device is an environment-friendly cooling type fire extinguishing agent storage tank. And opening the electromagnetic valve, and spraying the cooling fire extinguishing agent to the risk point or the fire occurrence position through the fire extinguishing agent conveying pipeline I. Simultaneously requesting the vehicle control unit to control the high-voltage contactor in the main circuit to be disconnected and to excite the fuse to be fused, and when Ta & lt T is detectedmin1And T is less than Tmin2When the fire extinguishing agent is sprayed, the electromagnetic valve is closed to stop spraying the fire extinguishing agent, so that one-time cooling fire extinguishing is realized, and when Ta & gtT is met againmax1Or T > Tmax2When the fire extinguishing agent is sprayed again, the electromagnetic valve is opened, and re-combustion fire extinguishing is realized.
Through the safety protection system and the control strategy of the high-pressure component cabin of the new energy passenger car, the fire condition early warning, cooling fire extinguishing and reburning fire extinguishing in the high-pressure cabin can be realized.
The present application further provides a safety device, referring to fig. 4, the safety device includes:
the acquisition module 10 is used for acquiring a first temperature of a component to be monitored and acquiring a second temperature of a cabin body to be monitored;
the first fire extinguishing module 20 is used for starting a first fire extinguishing mode when the first temperature or the second temperature meets fire extinguishing conditions and the fire is determined to occur; wherein the fire suppression condition comprises the first temperature being greater than a first high temperature threshold, and/or the second temperature being greater than a second high temperature threshold; the first fire extinguishing mode is to start the electromagnetic valve so that the fire extinguishing device sprays the fire extinguishing agent to the fire occurrence point;
and the second fire extinguishing module 30 sends a loop cutting request to the vehicle control unit so that the vehicle control unit starts a second fire extinguishing mode to cut off a high-pressure loop in which a fire occurs, thereby realizing fire control.
Optionally, the safety shield apparatus further comprises:
the first control module is used for controlling a first wire harness to acquire a first temperature of the component to be monitored;
and the second control module controls a second wire harness to acquire a second temperature of the cabin to be monitored.
Optionally, the safety shield apparatus further comprises:
and the control module initializes the first fire extinguishing mode and controls the electromagnetic valve to be closed when the first temperature is smaller than a first low-temperature threshold and the second temperature is smaller than a second low-temperature threshold.
Optionally, the obtaining module 10 includes:
the acquisition submodule acquires the first temperature of the component to be monitored and the second temperature of the cabin to be monitored based on a preset time interval.
Optionally, the safety shield apparatus further comprises:
the first calculation module is used for calculating the change rate of the first temperature to obtain a first change rate;
the second calculation module is used for calculating the change rate of the second temperature to obtain a second change rate;
an early warning module, when the first change rate is larger than a first change threshold, and/or
And when the second change rate is greater than a second change threshold value, outputting an early warning signal to warn an administrator to prevent a fire.
In addition, an embodiment of the present application further provides a computer-readable storage medium, where a security program is stored on the computer-readable storage medium, and the security program, when executed by a processor, implements the steps of the security protection method as described above.
The specific implementation of the computer-readable storage medium of the present application is substantially the same as the embodiments of the security protection method, and is not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A safety protection method is characterized by comprising the following steps:
acquiring a first temperature of a component to be monitored, and acquiring a second temperature of a cabin body to be monitored;
when the first temperature or the second temperature meets the fire extinguishing condition, determining that a fire occurs, and starting a first fire extinguishing mode;
and sending a loop cut-off request to the vehicle control unit so as to enable the vehicle control unit to start a second fire extinguishing mode, and cut off a high-pressure loop in which a fire occurs, so as to realize fire control.
2. The safety shield method of claim 1, wherein prior to the steps of obtaining the first temperature of the component to be monitored and obtaining the second temperature of the cabin to be monitored, the method comprises:
controlling a first wire harness to acquire a first temperature of the component to be monitored;
and controlling a second wire harness to acquire a second temperature of the cabin to be monitored.
3. A method of safety protection according to claim 1, wherein the fire suppressing conditions include the first temperature being greater than a first high temperature threshold, and/or the second temperature being greater than a second high temperature threshold;
the first fire extinguishing mode is to activate the solenoid valve to cause the fire extinguishing apparatus to spray the fire extinguishing agent to the fire occurrence point.
4. The safety shield method of claim 3, wherein after the steps of obtaining the first temperature of the component to be monitored and obtaining the second temperature of the cabin to be monitored, the method comprises:
when the first temperature is smaller than a first low-temperature threshold value and the second temperature is smaller than a second low-temperature threshold value, the first fire extinguishing mode is initialized, and the electromagnetic valve is controlled to be closed.
5. The safety shield method of claim 1, wherein the step of obtaining a first temperature of the component to be monitored and obtaining a second temperature of the cabin to be monitored comprises:
based on a preset time interval, acquiring the first temperature of the component to be monitored, and acquiring the second temperature of the cabin body to be monitored.
6. The safety shield method according to claim 5, wherein after the steps of obtaining the first temperature of the component to be monitored and obtaining the second temperature of the cabin to be monitored based on the predetermined time interval, the method comprises:
calculating the change rate of the first temperature to obtain a first change rate;
calculating the change rate of the second temperature to obtain a second change rate;
when the first rate of change is greater than a first change threshold, and/or
And when the second change rate is greater than a second change threshold value, outputting an early warning signal to warn an administrator to prevent a fire.
7. A safety shield system, the system comprising:
the fire extinguishing unit is used for controlling the fire extinguishing equipment to cool and extinguish fire at a fire occurrence part when the fire occurs;
the fire-fighting controller is used for acquiring temperature data in the high-pressure cabin through the signal wire harness, acquiring temperature data of high-pressure components in the high-pressure cabin through the control wire harness, and controlling the fire-fighting unit to perform cooling and fire-fighting work when a fire occurs;
the vehicle control unit is used for controlling the high-voltage contactor in the main circuit to be disconnected and the exciting fuse to be fused so as to prevent the fire from reigniting;
and the monitoring display screen is used for displaying the fire early warning signal so as to realize fire warning or early warning.
8. The safety protection system according to claim 7, wherein in the process of controlling the fire extinguishing equipment to cool down and extinguish the fire at the fire occurrence position, when the fire extinguishing unit controls the valve connected with the fire extinguishing equipment to open, the fire extinguishing agent in the fire extinguishing equipment is sprayed at the fire occurrence position to complete the fire extinguishing work.
9. A safety shield apparatus, the apparatus comprising: memory, a processor and a security program stored on the memory and executable on the processor, the security program being configured to implement the steps of the security method of any of claims 1 to 6.
10. A storage medium having a security program stored thereon, the security program when executed by a processor implementing the steps of the security method according to any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210508072.1A CN114699674A (en) | 2022-05-10 | 2022-05-10 | Safety protection method, system, equipment and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210508072.1A CN114699674A (en) | 2022-05-10 | 2022-05-10 | Safety protection method, system, equipment and storage medium |
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| CN114699674A true CN114699674A (en) | 2022-07-05 |
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| CN202210508072.1A Pending CN114699674A (en) | 2022-05-10 | 2022-05-10 | Safety protection method, system, equipment and storage medium |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698387A (en) * | 2012-07-01 | 2012-10-03 | 广西工学院 | Self-propelled midsized house vehicle extinguishing system and method thereof used for monitoring fires and extinguishing |
| CN113521617A (en) * | 2021-06-09 | 2021-10-22 | 长沙市奇俊机电科技有限公司 | Control system and method for storage bin, terminal device and storage medium |
| CN113658398A (en) * | 2021-08-05 | 2021-11-16 | 安徽中科中涣防务装备技术有限公司 | Commercial vehicle whole vehicle fire early warning and inhibiting system |
| CN215608917U (en) * | 2021-09-10 | 2022-01-25 | 江苏智安行能源科技有限公司 | Vehicle-mounted power battery box protection system, vehicle-mounted power supply system and electric vehicle |
-
2022
- 2022-05-10 CN CN202210508072.1A patent/CN114699674A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698387A (en) * | 2012-07-01 | 2012-10-03 | 广西工学院 | Self-propelled midsized house vehicle extinguishing system and method thereof used for monitoring fires and extinguishing |
| CN113521617A (en) * | 2021-06-09 | 2021-10-22 | 长沙市奇俊机电科技有限公司 | Control system and method for storage bin, terminal device and storage medium |
| CN113658398A (en) * | 2021-08-05 | 2021-11-16 | 安徽中科中涣防务装备技术有限公司 | Commercial vehicle whole vehicle fire early warning and inhibiting system |
| CN215608917U (en) * | 2021-09-10 | 2022-01-25 | 江苏智安行能源科技有限公司 | Vehicle-mounted power battery box protection system, vehicle-mounted power supply system and electric vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 李东明: "《自动消防***设计安装手册》", 中国计划出版社, pages: 106 - 108 * |
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Application publication date: 20220705 |