Warning system for working area of emergency rescue vehicle

Abstract

The invention relates to the technical field of emergency rescue, and discloses an emergency rescue vehicle working area warning system which comprises a sensor module, a warning signal generation module, an intelligent control module and a wireless communication module. The sensor module internally comprises a millimeter wave radar unit, a laser radar unit and an ultrasonic sensor unit, and sensors in the sensor module are installed on the periphery of the emergency rescue vehicle. According to the warning system for the working area of the emergency rescue vehicle, the strong light flashing lamp arranged outside the emergency rescue vehicle, the electronic display screen and the loudspeaker form a combined warning scheme, the effect of the strong light flashing lamp is particularly obvious at night or under the severe weather condition, vehicles and pedestrians in the distance can find the rescue area more easily, and the rescue effect is improved. And meanwhile, the sound alarm of the loudspeaker is started to further attract the attention of surrounding people, and the warning content can be visually conveyed by matching with the warning information displayed on the electronic display screen.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency rescue, and specifically to a warning system for the working area of an emergency rescue vehicle. Background Art

[0002] The society's attention to public safety is increasing, and higher requirements are also put forward for safety guarantees during the emergency rescue process. Whether it is the safety of rescue personnel or other traffic participants at the scene, better guarantees are needed. With the progress of technology, vehicle intelligent technology has developed greatly. At the emergency rescue site, such as in scenarios like fires, traffic accidents, and natural disaster rescues, the safety of the working area around the emergency rescue vehicle is crucial. Traditional warning methods mainly rely on manually setting warning signs, such as placing cones and pulling up warning lines, lacking the ability of dynamic adjustment. The situation at the rescue site is constantly changing, and the rescue vehicle may need to move its position or adjust the scope of the rescue area. However, this method has many defects:

[0003] Traditional fixed warning signs are difficult to adapt to rescue activities on the road. The process of arranging warning equipment and informing information takes a long time, and the visible range of traditional warning signs is limited. In adverse weather conditions such as at night, in fog, or in heavy rain, it is difficult for vehicles or pedestrians in the distance to notice and obtain the corresponding warning information. Moreover, as the rescue work progresses, the rescue vehicle may need to move its position, or the rescue area needs to be expanded or reduced according to the changes in rescue operations. Traditional arrangement equipment is difficult to adapt to dynamic area warning.

[0004] In view of the above problems, there is an urgent need to innovate and design on the basis of the original warning system. Summary of the Invention

[0005] The purpose of the present invention is to provide a warning system for the working area of an emergency rescue vehicle to solve the problems put forward in the above background art, that is, the visible range of traditional warning signs is limited, in adverse weather conditions, it is difficult for vehicles or pedestrians in the distance to notice the warning information, and as the rescue work progresses, the rescue vehicle may need to move its position, and traditional arrangement equipment is difficult to adapt to dynamic area warning.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A warning system for the working area of an emergency rescue vehicle, which includes the following modules: a sensor module, a warning signal generation module, an intelligent control module, and a wireless communication module;

[0007] The sensor module includes a millimeter-wave radar unit, a lidar unit, and an ultrasonic sensor unit, and the sensors in the sensor module are respectively installed around the emergency rescue vehicle;

[0008] The warning signal generation module includes a strong light flashing unit, a sound alarm unit, and an electronic display unit;

[0009] The intelligent control module includes a central processor, a data storage unit, interface circuits, and an algorithm and logic processing unit. The central processor is compatible with the emergency rescue vehicle control system, and the interface circuits are installed on the emergency rescue vehicle;

[0010] The wireless communication module includes a Bluetooth unit, a Wi-Fi unit, and a 4G / 5G unit.

[0011] Adopting the above technical solution provides a warning direction to the surrounding areas of the working area where the emergency rescue vehicle is located.

[0012] Preferably, the sensor module and the intelligent control module transmit signals to each other, and the instructions generated by the intelligent control module are sent to the warning signal generation module.

[0013] Adopting the above technical solution enables the use of the warning signal generation module to be controlled by the instructions of the intelligent control module.

[0014] Preferably, the instructions of the intelligent control module are synchronously uploaded to the emergency rescue control center by the wireless communication module. The wireless communication module connects to the communication unit of the surrounding vehicle control system, and the wireless communication module receives the instructions from the emergency rescue command center and feeds them back to the intelligent control module.

[0015] Adopting the above technical solution enables the interaction and connection between the signals of the intelligent control module and the surrounding modules.

[0016] Preferably, the millimeter-wave radar unit is connected to the intelligent control module via a CAN bus. The intelligent control module is connected to the lidar unit via an optical fiber, and the intelligent control module is connected to the ultrasonic sensor unit via an electrical signal line.

[0017] Adopting the above technical solution enables the intelligent control module to connect to the devices of the sensor module using different connection cables and methods.

[0018] Preferably, the strong light flashing unit is composed of multiple groups of high-brightness LED lights. The strong light flashing unit is installed at the front of the vehicle, on both sides of the vehicle body, and at the rear of the vehicle. The lamp beads of the strong light flashing unit are connected by the control circuit of the intelligent control module.

[0019] Adopting the above technical solution, the strong light flashing can provide a significant warning effect in bad environmental weather.

[0020] Preferably, the sound alarm unit includes a speaker installed outside the vehicle, and the audio amplifier connected to the speaker is connected to the intelligent control module.

[0021] Adopting the above technical solution, it is convenient to emit a relatively loud sound alarm to the surrounding environment to attract the attention of the surrounding people and achieve a warning effect.

[0022] Preferably, the electronic display unit is a high-resolution electronic display, and the high-resolution electronic displays are respectively installed on both sides and the rear of the vehicle body.

[0023] Adopting the above technical solution, by adding an electronic display outside the vehicle, it is convenient to significantly display warning information to surrounding vehicles.

[0024] Preferably, the Bluetooth unit connects the intelligent control module and the rescue personnel's handheld terminal, and the Bluetooth unit is connected to the intelligent control module through the UART interface.

[0025] Adopting the above technical solution enables the staff to more conveniently control the status of the emergency rescue vehicle within the rescue range.

[0026] Preferably, the Wi-Fi unit is connected to the Wi-Fi hotspot at the rescue site, and the Wi-Fi unit is connected to the emergency rescue command center by the Wi-Fi hotspot at the rescue site.

[0027] Adopting the above technical solution, through the signal transmission between wireless networks, the correlation strength between the emergency rescue command center and the emergency rescue vehicle is increased.

[0028] Preferably, the 4G / 5G unit forms a wide-area communication with the intelligent transportation system of surrounding vehicles and the remote traffic management center, and the 4G / 5G unit is connected to the intelligent control module using an LTE module.

[0029] Adopting the above technical solution, corresponding warning notifications are sent to the vehicles passing by and about to pass by within the rescue area to reduce the congestion of vehicles around the rescue area.

[0030] Compared with the prior art, the beneficial effects of the present invention are: the warning system for the working area of the emergency rescue vehicle:

[0031] 1. The strong light flashing lights, electronic display screens, and speakers installed outside the emergency rescue vehicle constitute a combined warning scheme. In the night or under bad weather conditions, the effect of the strong light flashing lights is particularly obvious, making it easier for vehicles and pedestrians in the distance to discover the rescue area. At the same time, starting the sound alarm of the speaker can further attract the attention of the surrounding people. The warning information such as "Rescue Area, Do Not Approach" displayed on the electronic display screen can also intuitively convey the warning content. By cooperating with the millimeter-wave radar unit, lidar unit, and ultrasonic sensor unit installed around the vehicle to detect the vehicles driving around the emergency rescue vehicle, while amplifying the volume of the speaker and coordinating with the in-vehicle system information of the wireless communication module, a warning is sent to the vehicle, giving the other party enough time to react, thus greatly expanding the effective warning range;

[0032] 2. The intelligent control module installed on the emergency rescue vehicle integrates the information collected by the sensor module and provides the details of the surrounding rescue environment to the emergency rescue command center through the wireless communication module. At the same time, the emergency rescue command center sends the corresponding details within the rescue work area to the emergency rescue vehicle through the wireless communication module, facilitating the actions of the rescue personnel and the acquisition of real-time information. At the same time, the wireless communication module exchanges information with the intelligent transportation systems of the surrounding vehicles, provides information for the vehicles approaching the rescue area, and is convenient for reducing the entry of vehicles into the rescue area. At the same time, the wireless communication module can feedback the traffic condition data collected in the system about the rescue site to the traffic management center, facilitating the traffic management center to set up temporary traffic control measures around the rescue site, reasonably plan the traffic flow, avoid traffic congestion affecting the development of the rescue work, and further improve the intelligent level of urban traffic emergency management. Brief Description of the Drawings

[0033] Figure 1 It is a schematic diagram of the warning system architecture of the emergency rescue vehicle of the present invention;

[0034] Figure 2 It is a schematic diagram of the module components of the warning system of the present invention. Detailed Embodiment

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figure 1 - Figure 2, the present invention provides a technical solution: an emergency rescue vehicle working area warning system, which includes the following modules: a sensor module, a warning signal generation module, an intelligent control module, and a wireless communication module;

[0037] The sensor module includes a millimeter-wave radar unit, a lidar unit, and an ultrasonic sensor unit. The sensors in the sensor module are respectively installed around the emergency rescue vehicle. The sensors in the sensor module and the intelligent control module transmit signals to each other. The instructions generated by the intelligent control module are sent to the warning signal generation module. The instructions of the intelligent control module are synchronously uploaded to the emergency rescue control center by the wireless communication module. The wireless communication module connects to the communication unit of the surrounding vehicle control system, and the wireless communication module receives the instructions from the emergency rescue command center and feeds them back to the intelligent control module;

[0038] The warning signal generation module includes a strong light flashing unit, a sound alarm unit, and an electronic display unit. The millimeter-wave radar unit is connected to the intelligent control module via a CAN bus. The intelligent control module is connected to the lidar unit via an optical fiber. The intelligent control module is connected to the ultrasonic sensor unit via an electrical signal line. The strong light flashing unit consists of multiple groups of high-brightness LED lights, and the strong light flashing unit is installed at the front of the vehicle, on both sides of the vehicle body, and at the rear of the vehicle. The lamp beads of the strong light flashing unit are connected by the control circuit of the intelligent control module. The sound alarm unit includes a speaker installed outside the vehicle, and the audio amplifier connected to the speaker is connected to the intelligent control module. The electronic display unit is a high-resolution electronic display, and the high-resolution electronic displays are respectively installed on both sides of the vehicle body and at the rear of the vehicle;

[0039] The intelligent control module includes a core processor, a data storage unit, interface lines, and an algorithm and logic processing unit. The core processor is compatible with the emergency rescue vehicle control system, and the interface lines are installed on the emergency rescue vehicle;

[0040] The wireless communication module includes a Bluetooth unit, a Wi-Fi unit, and a 4G / 5G unit. The Bluetooth unit connects the intelligent control module and the rescue personnel's handheld terminal, and the Bluetooth unit is connected to the intelligent control module via a UART interface. The Wi-Fi unit is connected to the Wi-Fi hotspot at the rescue site, and the Wi-Fi unit is connected to the emergency rescue command center through the Wi-Fi hotspot at the rescue site. The 4G / 5G unit forms a wide-area communication with the intelligent transportation system of surrounding vehicles and the remote traffic management center, and the 4G / 5G unit is connected to the intelligent control module using an LTE module;

[0041] Combined with the accompanying drawings of the specification Figure 1 - Figure 2As shown in the figure, the millimeter-wave radar in the sensor module is used for long-distance and large-range target detection, and can accurately detect the distance, speed, and angle information of objects hundreds of meters away. The lidar uses a rotating Jie Ge Ou to achieve omnidirectional scanning, and can provide high-precision three-dimensional environmental scanning data to carefully model the environment around the rescue vehicle. The ultrasonic sensor is mainly responsible for detecting nearby objects, especially within a few meters around the vehicle, to effectively monitor blind spots. By installing around the vehicle, it can quickly explore the environment around the vehicle. After the electrical signal data is transmitted, it enters the central processor in the intelligent control module. The data storage unit is used to store electrical signals and system log records during the algorithm and logic processing unit, which is convenient for uploading logs to the emergency rescue command center through the Wi-Fi hotspot connection of the wireless communication module for subsequent reference;

[0042] The algorithm and logic processing unit receives the information from the sensor module and the information data uploaded from the emergency rescue command center in the vehicle's on-board system, loads the basic configuration information of the current rescue scene, and adjusts the warning range parameters according to the scene of the rescue area. For small-range warnings in urban roads, and for rescue scenes on highways and in open environments, large-range warnings are adopted. The adjustment of the warning range is achieved through the warning signal generation module and the wireless communication module. For small-range warnings, the strong light flashing unit emits light sources, and the speaker of the sound alarm unit broadcasts the specified warning audio file. The electronic display unit scrolls text information such as "Rescue area, do not approach" and "Danger, slow down" as well as simple graphic signs;

[0043] When using the strong light flashing unit, the sound alarm unit, and the electronic display unit, the intelligent control module determines the morning and evening of the environmental time according to the rescue time. When the time enters the night, it increases the brightness of the strong light flashing unit and the electronic display unit, and controls the gain of the audio amplifier of the sound alarm unit so that the sound alarm can be clearly heard by the surrounding people;

[0044] The algorithm and logic processing unit operates using an Intel Core i7-12700K chip. During operation, it sends calibration instructions to the sensor module. By receiving the calibration and self-check results feedback from the sensor module, if any sensor shows abnormalities, error messages are recorded in the system log, and a sensor fault alarm is displayed on the vehicle display screen through the warning signal generation module. At the same time, fault information is sent to the wireless communication module to notify rescue personnel and the command center. During the rescue process, distance, speed, and angle data of target objects are received from the millimeter-wave radar at fixed time intervals, and three-dimensional point cloud data of the vehicle's surrounding environment generated by the lidar is received. The point cloud data contains a large amount of point coordinate information and corresponding reflection intensity values. Distance information of nearby objects is obtained from the ultrasonic sensor. When an object enters the detection range of the ultrasonic sensor, the distance value it sends is received, and the corresponding sensor position information is recorded;

[0045] By fusing the data of the millimeter-wave radar and the lidar, the fused data is filtered using the median filtering method to remove noise and outliers, so as to improve the stability and reliability of the data, and reduce misjudgments caused by sensor errors or environmental interference. The fused sensor data presents the real-time movement of surrounding objects, analyzes the speed, direction, and trajectory of objects entering the warning range, enabling the intelligent control module to expand the dangerous area by 5 meters in the driving direction of the car according to its speed and trajectory, and adjust the intensity and frequency of the warning signal;

[0046] After that, according to the type of the emergency rescue vehicle and the current rescue scene information, the shape and scope of the basic dangerous area are determined, considering the vehicle's motion state information;

[0047] When the vehicle is in a stationary state, the basic dangerous area remains relatively stable;

[0048] If the vehicle is moving slowly, the basic dangerous area is finely adjusted according to the vehicle's moving direction and speed, so that it follows the vehicle's movement, but the range change is small;

[0049] If the vehicle is driving at high speed on the way to the rescue site, the scope of the basic dangerous area is reduced to minimize excessive interference with normal traffic and ensure its own safety;

[0050] When the emergency rescue vehicle is working, it regularly sends information such as the position, working area range, and danger level of the rescue vehicle to the intelligent transportation systems of surrounding vehicles through the 4G / 5G unit of the wireless communication module. At the same time, it communicates with the command center through the Wi-Fi unit, receives instructions and task arrangement information from the command center, controls the replacement of the corresponding strong light flashing unit, sound alarm unit, and the display content of the electronic display unit, and cooperates with the command center and the traffic management center to dredge the surrounding traffic;

[0051] The Bluetooth unit in the wireless communication module uses the dedicated short-range communication protocol to maintain short-distance communication with surrounding vehicles and the handheld terminals of rescue personnel. For remote communication with the command center, wide-area communication protocols such as 4G / 5G are used, and the protocol parameters are optimized according to the network conditions. The data transmission efficiency is improved by adjusting the TCP window size and optimizing the UDP packet size;

[0052] At the same time, edge computing technology is added when the wireless communication module is used. Partial data processing and communication coordination are carried out on the edge server close to the rescue site. When facing simple traffic condition analysis tasks, the edge server is used to complete them, reducing the communication burden between the emergency rescue vehicle and the command center, improving the overall communication and coordination efficiency of the system, effectively protecting rescue personnel from being collided by other vehicles, and at the same time reducing the probability of other people on the scene encountering danger due to straying into the rescue area and reducing the occurrence of secondary accidents;

[0053] Through the information interaction of the system, information interaction and collaborative work with surrounding vehicles and the traffic management center are realized, improving the intelligent level and response ability of the entire traffic system in case of emergencies. At the same time, through high-frequency information interaction, the warning system presents the real-time updated working area status. When the traffic management center uses it based on real-time data, it can better command the surrounding traffic, always ensure that there is enough safety range around, reasonably plan the traffic flow, ensure the smooth progress of the rescue work, improve the flexibility and efficiency of the entire rescue process, and further enhance the intelligent level of urban traffic emergency management.

[0054] Working principle: When using this warning system for the working area of the emergency rescue vehicle, first, when the emergency rescue vehicle arrives at the rescue site and starts, the sensor module begins to continuously monitor the surrounding environment. Once an object is detected entering the preset dangerous area, the data is transmitted to the intelligent control module;

[0055] The intelligent control module judges the degree of danger according to the received data and the built-in algorithm, generates the corresponding warning signal instruction, and sends it to the warning signal generation module;

[0056] The warning signal generation module starts warning operations such as strong light flashing, sound alarm, and electronic display screen display according to the instruction. At the same time, the wireless communication module sends the relevant information of the rescue vehicle to the surrounding vehicles and the traffic management center, and receives the feedback information for subsequent processing;

[0057] During the rescue process, the intelligent control module adjusts the dangerous area range and warning strategy in real time according to the dynamic changes of the rescue site. When there are situations such as the movement of the rescue vehicle and the change of the surrounding traffic conditions, it ensures that the entire system is always in the best working state.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An emergency rescue vehicle working area warning system, characterized in that: It includes the following modules: sensor module, warning signal generation module, intelligent control module and wireless communication module; The sensor module includes a millimeter wave radar unit, a laser radar unit and an ultrasonic sensor unit, and the sensors in the sensor module are respectively installed around the emergency rescue vehicle; The warning signal generating module comprises a strong light flashing unit, a sound alarm unit and an electronic display screen unit; The intelligent control module includes a core processor, a data storage unit, an interface circuit and an algorithm and logic processing unit, and the core processor is compatible with the emergency rescue vehicle control system, and the interface circuit is installed on the emergency rescue vehicle; The wireless communication module includes a Bluetooth unit, a Wi-Fi unit and a 4G / 5G unit.

2. The emergency rescue vehicle work area warning system according to claim 1, characterized in that: The sensor module and the intelligent control module transmit signals to each other, and the instructions generated by the intelligent control module are sent to the warning signal generation module.

3. The emergency rescue vehicle work area warning system according to claim 1, characterized in that: The instructions of the intelligent control module are synchronously uploaded to the emergency rescue control center by the wireless communication module, and the wireless communication module is connected to the communication unit of the surrounding vehicle control system, and the wireless communication module receives the instructions of the emergency rescue command center and feeds back to the intelligent control module.

4. The emergency rescue vehicle work area warning system according to claim 1, characterized in that: The millimeter wave radar unit is connected to the intelligent control module using a CAN bus, and the intelligent control module is connected to the laser radar unit using an optical fiber, and the intelligent control module is connected to the ultrasonic sensor unit using an electrical signal line.

5. The emergency rescue vehicle work area warning system according to claim 1, characterized in that: The strong light flashing unit is composed of multiple groups of high-brightness LED lights, and the strong light flashing unit is installed on the head of the vehicle, both sides of the vehicle body and the rear of the vehicle, and the lamp beads of the strong light flashing unit are connected by the control circuit of the intelligent control module.

6. The emergency rescue vehicle work area warning system according to claim 1, characterized in that: The sound alarm unit includes a speaker installed outside the vehicle, and the audio amplifier connected to the speaker is connected to the intelligent control module.

7. The emergency rescue vehicle work area warning system according to claim 1, characterized in that: The electronic display screen unit is a high-resolution electronic display screen, and the high-resolution electronic display screen is respectively installed on both sides of the vehicle body and the rear of the vehicle.

8. The emergency rescue vehicle work area warning system according to claim 1, characterized in that: The Bluetooth unit connects the intelligent control module and the rescuer's handheld terminal, and the Bluetooth unit is connected to the intelligent control module through a UART interface.

9. The emergency rescue vehicle work area warning system according to claim 1, characterized in that: The Wi-Fi unit is connected to the Wi-Fi hotspot at the rescue site, and the Wi-Fi unit is connected to the emergency rescue command center via the Wi-Fi hotspot at the rescue site.

10. The emergency rescue vehicle work area warning system according to claim 1, characterized in that: The 4G / 5G unit forms wide area communication with the intelligent transportation systems of surrounding vehicles and a remote traffic management center, and the 4G / 5G unit is connected to the intelligent control module using an LTE module.

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