Ship vehicle cabin monitoring method and system

Abstract

The invention discloses a ship vehicle cabin monitoring method and system. The monitoring method comprises the following steps: setting an audio and video monitoring system for a vehicle cabin (1); presetting vehicle battery abnormal audio and video feature data; and the audio and video monitoring system performs audio and video monitoring on the vehicle in the vehicle cabin, compares the acquired audio and video signals with the abnormal audio and video feature data of the vehicle battery, and gives an alarm if the acquired audio and video signals are matched with the abnormal audio and video feature data of the vehicle battery. The monitoring system provided by the invention can realize the monitoring method. According to the monitoring method and system provided by the invention, the occurrence of the fire is judged by comparing and analyzing the abnormal audio and video feature data of the vehicle battery, so that the fire can be pre-judged before the occurrence of the fire, and a worker can take preventive measures in the first time to avoid the occurrence of the fire, so that the loss is avoided to the greatest extent.

Description

Technical Field

[0001] The present invention relates to a public safety monitoring technology, and particularly to a monitoring method and system for a ship vehicle cabin. Background Art

[0002] Currently, a traditional fire detection and alarm system, such as an optoelectronic smoke detector or a combined heat and smoke detector, is usually configured for the vehicle cabin of a ship for fire detection and alarm.

[0003] In addition, with the rapid growth of the demand for ships carrying lithium battery-powered vehicles and the characteristics of lithium battery vehicle fire accidents, a video monitoring system with thermal imaging function is also installed in the vehicle cabin on some ships as a supplement to the fire detection and alarm system. The video monitoring system uses an infrared detector array of a camera to detect the infrared radiation intensity of the monitoring area, and converts and processes the received signal into an image, with different colors corresponding to different temperatures. When a fire occurs in a vehicle in the monitoring area, causing an abnormal increase in temperature, the monitoring system can quickly identify and issue an alarm.

[0004] The current problem is that:

[0005] Whether it is a traditional fire detection and alarm system or a newly enabled video monitoring system, they both detect the light and heat of the flame after a fire occurs and then determine the occurrence of the fire, and it is impossible to foresee a possible fire before the fire occurs. As a result, the losses caused by the fire are still unavoidable. Summary of the Invention

[0006] The purpose of the present invention is to provide a monitoring method and system for a ship vehicle cabin, which can predict a fire before the fire occurs.

[0007] To achieve the above technical purpose, the present invention adopts the following technical solutions:

[0008] A monitoring method for a ship vehicle cabin, the monitoring method includes: setting an audio-video monitoring system for the vehicle cabin; presetting audio-video characteristic data of abnormal vehicle batteries; the audio-video monitoring system monitors the vehicle cabin for audio and video, and compares the collected audio-video signals with the audio-video characteristic data of abnormal vehicle batteries. If the collected audio-video signals match the audio-video characteristic data of abnormal vehicle batteries, an alarm is issued.

[0009] Further, the audio-video characteristic data of abnormal vehicle batteries is the audio-video characteristic data of the sound and light alarm signals issued by the alarm system of the vehicle when parameters such as temperature or pressure of the battery system of the vehicle are abnormal.

[0010] Further, the audio-video monitoring system is connected to the alarm system of the ship.

[0011] Further, during the process of comparing the acquired audio - video signals with the audio - video feature data of abnormal vehicle batteries, it is carried out according to the pre - formulated comparison and matching rules.

[0012] Further, the audio - video monitoring system is combined with the original ship's closed - circuit television monitoring system, and the monitoring cameras of the system are arranged on the two - side bulkheads or the middle columns of the vehicle cabin.

[0013] A monitoring system for a ship's vehicle cabin, the monitoring system includes a plurality of monitoring cameras, the plurality of monitoring cameras are arranged in the vehicle cabin, and the monitoring system can perform audio - video monitoring on the vehicles in the vehicle cabin; the monitoring system is provided with audio - video feature data of abnormal vehicle batteries and a comparison module; the comparison module is used to compare the acquired audio - video signals with the audio - video feature data of abnormal vehicle batteries. If the acquired audio - video signals match the audio - video feature data of abnormal vehicle batteries, an alarm is issued.

[0014] Further, the audio - video feature data of abnormal vehicle batteries is the audio - video feature data of the sound and light alarm signals issued by the vehicle's alarm system when parameters such as temperature or pressure in the vehicle's battery system are abnormal.

[0015] Further, the monitoring system is connected to the ship's alarm system.

[0016] Further, during the process of comparing the acquired audio - video signals with the audio - video feature data of abnormal vehicle batteries, it is carried out according to the pre - formulated comparison and matching rules.

[0017] Further, the monitoring system is combined with the original ship's closed - circuit television monitoring system, and the monitoring cameras of the system are arranged on the two - side bulkheads or the middle columns of the vehicle cabin.

[0018] The beneficial effects of the monitoring method and system of the present invention compared with the prior art are as follows: By comparing and analyzing the audio - video feature data of abnormal vehicle batteries to judge the occurrence of abnormal states of vehicle battery packs, it is possible to predict a fire before it occurs, so that the staff can take preventive measures in the first time to avoid the occurrence of a fire, and thus minimize losses to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the functional implementation principle of the monitoring method and system for a ship's vehicle cabin of the present invention;

[0020] Figure 2 It is a schematic diagram of arranging monitoring cameras in the vehicle cabin of the monitoring method and system of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] The present invention will be further described below with specific embodiments:

[0022] This embodiment provides a monitoring method for a vehicle cabin on a ship. The main concept of this monitoring method is to determine the dangerous state of the vehicle by judging the characteristic of the vehicle's own alarm sound and light signals, so as to realize early fire prediction, so as to take intervention measures as early as possible and eliminate the fire danger in the budding stage.

[0023] The monitoring method of this embodiment specifically includes the following steps S1 to S3.

[0024] S1. A video and audio monitoring system is pre-constructed for the vehicle cabin 1 of the ship, which includes a large number of monitoring cameras 2, and these monitoring cameras 2 are arranged in various corners of the vehicle cabin 1 of the ship (as Figure 2 shown).

[0025] During the process of the ship transporting vehicles, the video and audio monitoring system can collect the sound and light changes in the vehicle cabin 1 through a large number of monitoring cameras 2.

[0026] Among the large number of monitoring cameras 2 arranged in the vehicle cabin 1, the monitoring range should cover all parking positions in the vehicle cabin 1, so as to monitor every area of the parked vehicles in the vehicle cabin 1 in place.

[0027] It should be noted that in this embodiment, the video and audio monitoring system is connected to the existing alarm system on the ship through a communication line. In this way, the video and audio monitoring system can send an alarm signal to the whole ship through the alarm system, and all the staff on the ship can learn the alarm information.

[0028] It should be noted that the video and audio monitoring system itself sets up a monitoring cabinet in the ship's electrical equipment room or the fire control station. In addition to alarming in the monitoring cabinet, the alarm can be sent to the ship's monitoring and alarm system through a communication line to realize the alarm in manned places and other important places (such as the cab, the ship's office, the senior crew's room, etc.).

[0029] S2. Determine the "abnormal audio and video characteristic data of vehicle batteries" in advance, and store the abnormal audio and video characteristic data of vehicle batteries in the host of the video and audio monitoring system.

[0030] The "abnormal audio and video characteristic data of vehicle batteries" refers to the audio and video characteristic data of the sound and light alarm signals sent by the vehicle's alarm system when the battery system of the vehicle (mainly referring to the battery pack) has abnormal parameters such as temperature or pressure (i.e., thermal runaway).

[0031] Specifically,

[0032] Currently, lithium battery-powered vehicles usually come with a battery management system. This battery management system can monitor the vehicle's battery pack, detect abnormal temperature or air pressure at the initial stage of battery pack thermal runaway, and use the vehicle's lighting and sound signal devices to emit lighting and sound signals with a specific rhythm. As long as the vehicle emits such signals, it can be determined that there is a risk of thermal runaway in the vehicle's battery pack and a possible fire.

[0033] The previously mentioned "abnormal audio and video feature data of vehicle batteries" is essentially the signal feature extraction data of "lighting and sound signals with a specific rhythm emitted by the vehicle's lighting and sound signal devices after the battery management system detects thermal runaway of the battery pack". In the subsequent step S3, as long as it is detected that the vehicle emits a similar signal, it can be preliminarily determined that the vehicle's battery pack has experienced thermal runaway.

[0034] S3. After the vehicle enters the vehicle compartment 1 of the ship, the audio and video monitoring system continuously conducts audio and video monitoring on the vehicle in the vehicle compartment 1, and compares the audio and video signals collected by the monitoring camera 2 with the pre-stored "abnormal audio and video feature data of vehicle batteries". When making the comparison, it is carried out according to the pre-established comparison and matching rules. If it is determined according to the comparison and matching rules that the "collected audio and video signals" match the "abnormal audio and video feature data of vehicle batteries" (feature matching), it is considered that "there is a risk of thermal runaway in the vehicle's battery system", and the audio and video monitoring system issues an alarm through the alarm system, thereby prompting dangerous information to the ship's staff.

[0035] It should be noted that the "comparison and matching rules" exist in the host of the audio and video monitoring system in the form of program algorithms.

[0036] More specifically, see Figure 1 ,

[0037] Video detection: Use the monitoring camera 2 to detect the light flashing in the visible light band of the monitoring area, combine image recognition and signal processing technologies to obtain the characteristics of the light flashing, and compare them with the pre-stored abnormal audio and video feature data of vehicle batteries in the audio and video monitoring system. If they match, it is prompted that there is an abnormality in the temperature or pressure of the vehicle's battery pack in the monitoring area.

[0038] Audio detection: Use the monitoring camera 2 to detect the sound in the monitoring area, combine signal processing technologies to obtain the characteristics of the vehicle's horn, and compare them with the pre-stored abnormal audio and video feature data of vehicle batteries in the system. If they match, it is prompted that there is an abnormality in the temperature of the vehicle's battery pack in the monitoring area.

[0039] The video detection and audio detection functions are completed by the monitoring camera 2 integrated with a microphone. After signal conversion and modulation inside the monitoring camera 2, the signals are transmitted to the data center of the monitoring system via a network cable. The data center identifies the vehicle alarm signal through the comparison of the characteristics of the sound and light signals and issues an alarm prompt.

[0040] See Figure 2 , in this embodiment, the monitoring cameras 2 are arranged on the two side bulkheads or the middle columns of the vehicle compartment 1 (if conditions permit) to achieve full coverage of the loading area of the lithium battery-powered vehicle; the monitoring cabinets are arranged in the electrical equipment room near the fire control station or the cab, and the alarm signals can be output to the cab and other places.

[0041] It should be noted that the previously mentioned audio and video monitoring system is combined with the original ship closed-circuit television monitoring system.

[0042] This embodiment also provides a monitoring system for a ship vehicle compartment. The monitoring system is mainly provided with a comparison module, which is used to "compare the collected audio and video signals with the abnormal audio and video characteristic data of the vehicle battery. If the collected audio and video signals match the abnormal audio and video characteristic data of the vehicle battery, an alarm is issued". In this way, the above-mentioned monitoring method is realized.

[0043] The main advantages of the monitoring method and system of this embodiment are as follows:

[0044] 1) The monitoring method and system of this embodiment do not judge the fire situation by detecting the light and heat of the flame as in the traditional way, but judge the abnormal occurrence of the vehicle battery pack state by comparing and analyzing the abnormal audio and video characteristic data of the vehicle battery. This approach is conducive to predicting the fire situation before the fire occurs, so that the staff can take treatment measures in the first time to avoid the occurrence of fire, or minimize the loss to the greatest extent.

[0045] It should be noted that according to the current characteristics of lithium battery vehicles, it is generally very difficult to extinguish the fire when the battery is out of control, and only measures such as covering with a fire blanket can be taken to prevent the spread of the fire.

[0046] In addition, the monitoring method and system of this embodiment also have some other advantages as follows:

[0047] 2) Integrated with the original video monitoring system in the vehicle compartment, there is no need to add additional equipment and wiring, reducing the investment in new ships; for the renovation of existing ships, only the equipment needs to be updated, and there is no need to rewire.

[0048] 3) As a supplement to the traditional fire detection and alarm system, it is independent of the fire detection and alarm system, and does not involve issues such as the redesign and certification of the fire detection and alarm system, which is convenient for application.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for monitoring a ship vehicle compartment, characterized in that: The monitoring method comprises: An audio and video monitoring system is provided for the vehicle cabin (1); Pre-set abnormal audio and video characteristic data of vehicle battery; The audio and video monitoring system performs audio and video monitoring on the vehicle compartment (1), and compares the collected audio and video signals with the abnormal audio and video characteristic data of the vehicle battery, and issues an alarm if the collected audio and video signals match the abnormal audio and video characteristic data of the vehicle battery.

2. The ship vehicle compartment monitoring method according to claim 1, characterized in that: The vehicle battery abnormal audio and video characteristic data is the audio and video characteristic data of the vehicle's alarm system sending out an audible and visual alarm signal when the vehicle's battery system has abnormal parameters such as temperature or pressure.

3. The ship vehicle compartment monitoring method according to claim 1, characterized in that: The audio and video monitoring system is communicated with the alarm system of the ship.

4. The ship vehicle compartment monitoring method according to claim 1, characterized in that: In the process of comparing the collected audio and video signals with the abnormal audio and video feature data of the vehicle battery, it is carried out according to the pre-established comparison and matching rules.

5. The ship vehicle compartment monitoring method according to claim 1, characterized in that: The audio and video monitoring system is combined with the original ship's closed-circuit television monitoring system, and the monitoring camera (2) of the system is arranged on the bulkheads on both sides of the vehicle cabin (1) or on the middle column.

6. A ship vehicle compartment monitoring system, the monitoring system comprising a plurality of monitoring cameras (2), wherein the plurality of monitoring cameras (2) are arranged in the vehicle compartment (1), and the monitoring system is capable of performing audio and video monitoring of the vehicles in the vehicle compartment (1); Features: The monitoring system is provided with vehicle battery abnormal audio and video characteristic data and a comparison module; The comparison module is used to compare the collected audio and video signals with the abnormal audio and video feature data of the vehicle battery, and if the collected audio and video signals match the abnormal audio and video feature data of the vehicle battery, an alarm is issued.

7. The ship vehicle compartment monitoring system according to claim 6, characterized in that: The vehicle battery abnormal audio and video characteristic data is the audio and video characteristic data of the vehicle's alarm system sending out an audible and visual alarm signal when the vehicle's battery system has abnormal parameters such as temperature or pressure.

8. The ship vehicle compartment monitoring system according to claim 6, characterized in that: The monitoring system is communicated with the alarm system of the ship.

9. The ship vehicle compartment monitoring system according to claim 6, characterized in that: In the process of comparing the collected audio and video signals with the abnormal audio and video feature data of the vehicle battery, it is carried out according to the pre-established comparison and matching rules.

10. The ship vehicle compartment monitoring system according to claim 6, characterized in that: The monitoring system is combined with the original ship's closed-circuit television monitoring system, and the monitoring cameras (2) of the system are arranged on the bulkheads on both sides of the vehicle cabin (1) or on the middle pillars.

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