CN115249404A - Quick-response real-time positioning and early warning system for truck collision accident - Google Patents
Quick-response real-time positioning and early warning system for truck collision accident Download PDFInfo
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- CN115249404A CN115249404A CN202010974158.4A CN202010974158A CN115249404A CN 115249404 A CN115249404 A CN 115249404A CN 202010974158 A CN202010974158 A CN 202010974158A CN 115249404 A CN115249404 A CN 115249404A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/167—Driving aids for lane monitoring, lane changing, e.g. blind spot detection
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Abstract
The invention discloses a quick-response real-time positioning and early warning system for a truck collision accident, which comprises a front-end detection unit arranged on the roof of a truck, a micro-control unit and a positioning transmission unit, wherein the micro-control unit and the positioning transmission unit are arranged in a truck carriage; the front end detection unit comprises an electronic collision sensor and an ultrasonic distance measurement sensor; the positioning transmission unit comprises a GPS and a communication module, and the electronic collision sensor and the ultrasonic ranging sensor are electrically connected with the micro control unit; the micro control unit is electrically connected with the GPS and the communication module. The system adopts a double detection mode, simultaneously adopts a collision sensor and an ultrasonic ranging sensor to carry out detection, and can alarm as long as one outgoing level signal exists; meanwhile, the alarm can be given in real time, and as long as the truck has a collision accident, the staff can immediately obtain the information of the traffic accident occurrence place in a short time, so that convenience is provided for subsequent rescue measures.
Description
Technical Field
The invention relates to the field of truck safety, in particular to a truck collision accident real-time positioning and early warning system with quick response.
Background
In recent years, traffic accidents frequently occur in China, and after the traffic accidents occur, if the accidents cannot be timely disposed, serious traffic jam can be caused, so that normal operation of the whole traffic road condition is influenced. Particularly, traffic accidents in important traffic trunks and high-incidence sections of accidents need to be processed in time, according to data issued by the department of traffic control of the ministry of public security of the first half of 2020, 10 road sections with frequent accidents in the first half of 2020 often cause 80 deaths in accordance with statistics of accident conditions of 20 kilometers of expressways and 10 kilometers of national provincial roads, wherein 7 places are located in parts of expressways such as G5 Kyoto Kun high speed and G15 Seiki high speed, and injuries caused by rear-end trucks of passenger cars are the most serious in traffic accidents. At present, in the 2014, the occurrence frequency of rear-end collisions accounts for 40% of the total number of traffic accidents, and casualties caused by the rear-end collisions account for 60% of the total casualties. Therefore, the timely positioning and alarming device for the truck collision accident can be developed, and the device has important significance for timely handling of the traffic accident and later-stage dispersion of traffic road conditions in China.
The collision accidents of the truck in the driving process can be mainly divided into front stamping collision and rear-end collision, the damage caused by the two kinds of collision accidents is the largest, and the device is also the main application range. In rear-end collision, the underride accident of a car is the most serious, and the rear lower protection device of a truck in China still has a plurality of problems: the rear lower protection device of the truck has design defects or installation errors, and can not well protect the rear-end car to cause personal casualty accidents; the rigidity of the protection device does not reach the standard and the self-refitting phenomenon is serious, after the rear lower protection device of a part of trucks is damaged, the rear lower protection device is welded by self, but the rigidity of the rear lower protection device can not meet the requirements of the regulations; some trucks even do not install a rear lower protection device for convenient loading and unloading, the problems of the same nominal shape of the protection device are rare, and the protection device does not meet the protection requirements on the side surfaces and the rear lower part of automobiles and trailers GB11567.2-2017 in China.
At present, the most common truck rear lower part protection devices in China are straight arm type rear lower part protection devices and inclined arm type rear lower part protection devices, but the most common truck rear lower part protection devices cannot achieve good protection effect due to low energy absorption and buffering capacity. And the ground clearance of the chassis of the large and medium-sized trucks is usually higher than the height of the body of a passenger truck, when a rear-end collision accident happens, the rear lower part protection device of the traditional truck cannot resist the energy generated by the collision, and the passenger truck easily penetrates into the tail part of the truck, so that the tragedy of car damage and people death is caused.
When a traffic accident of a greater level or more than a level of casualties occurs, accident personnel are collided, an alarm distress signal cannot be sent out at the first time, a vehicle passing by the accident personnel needs to give an alarm, and meanwhile after the alarm personnel need to describe the accident place orally, but basically only a rough place can be spoken out, and the accurate position cannot be spoken out, so that the signal cannot sufficiently miss the optimal rescue opportunity.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a truck collision accident real-time positioning and early warning system with quick response.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a quick-response real-time positioning and early warning system for a truck collision accident, which comprises a front-end detection unit arranged on the roof of a truck, a micro-control unit and a positioning transmission unit, wherein the micro-control unit and the positioning transmission unit are arranged in a truck carriage;
the front end detection unit comprises an electronic collision sensor and an ultrasonic ranging sensor;
the positioning transmission unit comprises a GPS and a communication module, and the electronic collision sensor and the ultrasonic ranging sensor are electrically connected with the micro control unit;
the electronic collision sensors are distributed and installed on the left side, the right side and the rear end of the roof of the truck, and the ultrasonic ranging sensor is installed at the front end of the roof of the truck.
As a preferred technical scheme of the invention, the micro-control unit adopts a RaspberryPi4B module, receives signals transmitted by the electronic collision sensor and the ultrasonic ranging sensor, and then transmits the geographical position information, namely alarm information, of an accident occurrence area to a worker, so as to realize intermediate regulation and information transmission.
As a preferred technical solution of the present invention, the raspberry pi4B module adopted by the micro control unit includes a 1.5G processor, a memory card, a 5V-3A power interface, a micro HDMI port 4K resolution supporting dual display, 2 USB2.0 ports, 2 USB3.0 ports, a gigabit ethernet port, and a GPIO interface, and the GPIO interface is connected to the front-end detection and information transmission portion.
As a preferred technical scheme of the invention, the electronic collision sensor adopts a CollisionsersV2.0 module, outputs low level when in touch, releases and keeps high level for detecting contact collision, a switch at the front end of the module installation has collision, the module outputs low level and no collision, outputs high level, and the module is provided with an M3 installation hole, thereby being convenient for installation, and is also provided with a switch indicator light, and the light is on when in collision, and the no collision light is off.
As a preferable technical scheme of the invention, the ultrasonic distance measuring sensor adopts an HC-SR04 ultrasonic distance measuring sensor, at least 10us of trigger signals are input into a TRIG pin, 8 40kHz periodic levels are internally sent out, echoes are detected, an ECHO outputs a high-level ECHO signal once the ECHO signal is detected, the pulse width of the ECHO signal is in direct proportion to the measured distance, and the distance can be calculated through the time interval from the signal transmission to the received ECHO signal.
As a preferred technical scheme of the invention, the GPS adopts an EZ-0048GPS module to carry out satellite communication with a UART or a USB, the GPS is connected with the micro control unit to obtain accurate geographical position information of the truck, and the communication module adopts an SIM900A module to transmit the positioning information of the truck.
Compared with the prior art, the invention has the following beneficial effects:
the system adopts a double detection mode, simultaneously adopts a collision sensor and an ultrasonic ranging sensor to carry out detection, and can alarm as long as one outgoing level signal exists; meanwhile, the alarm can be given in real time, and as long as the truck has a collision accident, the staff can immediately obtain the information of the traffic accident occurrence place in a short time, so that convenience is provided for subsequent rescue measures.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the system architecture of the present invention;
FIG. 2 is a flow chart of the operation of the present invention;
FIG. 3 is a diagram of a GPIO interface in the micro control unit of the present invention;
FIG. 4 is a schematic diagram of a communication module according to the present invention;
FIG. 5 is a schematic diagram of the operation of the electronic crash sensor of the present invention;
FIG. 6 is a schematic diagram of a serial port connection of a communication module according to the present invention;
FIG. 7 is a circuit diagram of the power input of the communication module of the present invention;
fig. 8 is a schematic view of the mounting structure of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1
As shown in fig. 1-8, the invention provides a quick-response real-time positioning and early warning system for a truck collision accident, which comprises a front-end detection unit installed on the roof of a truck, a micro-control unit and a positioning transmission unit, wherein the micro-control unit and the positioning transmission unit are installed inside a truck carriage;
the front-end detection unit comprises an electronic collision sensor and an ultrasonic ranging sensor, and is used for detecting and judging a collision signal when an automobile collides, the electronic collision sensor has the working principle that when the collision occurs, a strain resistor deforms to change the resistance value of the strain resistor and further transmit the signal, has the advantages of sensitive signal sensing, high signal transmission speed, small size and the like, can quickly detect whether the truck collides or not, the ultrasonic ranging module is a ranging element capable of transmitting and receiving ultrasonic waves, and adopts the ultrasonic echo ranging principle, so that the distance of a detected target can be quickly detected, and the electronic collision sensor and the ultrasonic ranging module are used as the front-end detection module together, and can simultaneously work under the condition of switching on a power supply, and when any module transmits the signal or transmits the signal simultaneously, the electronic collision sensor and the ultrasonic ranging module can be considered to have the collision accident, and the subsequent part can be processed and transmitted the signal, and the subsequent processing work can be carried out by a worker;
the positioning transmission unit comprises a GPS and a communication module, and the electronic collision sensor and the ultrasonic ranging sensor are electrically connected with the micro control unit;
the micro control unit is electrically connected with the GPS and the communication module, the electronic collision sensors are distributed and installed on the left side and the right side and the rear end of the roof of the truck, and the ultrasonic ranging sensor is installed at the front end of the roof of the truck.
Furthermore, the micro control unit adopts a RaspberryPi4B module to receive signals transmitted by the electronic collision sensor and the ultrasonic ranging sensor, and then sends the geographical position information, namely alarm information, of the accident occurrence area to workers, so as to realize intermediate regulation and information transmission.
The RaspberryPi4B module adopted by the micro-control unit comprises a 1.5G processor, a memory card, a 5V-3A power interface, a micro HDMI (high-definition multimedia interface) port 4K resolution supporting double displays, 2 USB2.0 ports, 2 USB3.0 ports, a gigabit Ethernet port and a GPIO (general purpose input/output) interface, the GPIO interface is connected with a front-end detection and information transmission part, software control of the Raspberrypi4B module is completed under a Raspbian operating system, the updating sources are more, the software is rich, the system is safe and stable, LXDE is started, and the LXDE is edited by using a Python3 language.
Electronic type collision sensor adopts collisionsensV2.0 module, belong to Arduino module, the compatible sensor expansion board of port, output low level during touch, the release keeps the high level, be used for contacting the collision detection, module installation front end switch has the collision, module output low level, do not collide, output high level, there is the M3 mounting hole in the module, can easy to assemble, still have the switch pilot lamp simultaneously, there is the collision then the lamp is bright, no collision lamp goes out, and be connected with Raspberrypi4BGPIO interface.
The ultrasonic ranging sensor adopts an HC-SR04 ultrasonic ranging sensor, the detection distance can reach 2cm-400cm, the error is 0.3cm, the induction angle is not lower than 15 degrees, and the ultrasonic ranging sensor has good ranging performance, at least 10us of trigger signals are input to a TRIG pin, 8 40kHz periodic levels are sent out inside the TRIG pin, echoes are detected, once the ECHO signals are detected, ECHO outputs high-level ECHO signals, the pulse width of the ECHO signals is in direct proportion to the measured distance, therefore, the distance can be calculated through the time interval from the transmission signals to the received ECHO signals, and the ultrasonic ranging sensor is connected with a Raspberrypi4 PIBGO interface.
The GPS adopts an EZ-0048GPS module to carry out satellite communication with UART or USB, the GPS is connected with a micro control unit to obtain the accurate geographical position information of the truck, and has the characteristics of accurate positioning information and strong real-time property, the communication module adopts an SIM900A module to transmit the positioning information of the truck, the GPS is an EZ-0048GPS module with a built-in L80-39GPS chip, a CP2102 is adopted as a bridging chip from the USB to the UART, the GPS is stable, reliable and rapid, the L80-39 has 66 search channels and 22 synchronous tracking, the working voltage is 4.5V-5.5V, the position precision is less than 2.5m, the speed accuracy is less than 1.0m/s, and the NMEA0183 protocol is adopted for transmission; the working frequency range of the SIM900A module is EGSM900MHZ and DCS1800MHZ, GPRSmuti-slotclass10/class8 and GRPS coding formats are supported, the SIM900A structurally comprises a baseband, a memory, a GSM radio frequency circuit antenna, a power supply circuit and an SIM card seat, and after the SIM card is installed, the SIM card can be accessed to the Internet and sends information to a mobile phone of a worker to finish the information transmission function. And the interface is connected with a GPIO port of a Raspberrypi4B module.
Specifically, the working environment of the system is as follows: the working voltage is 5V, the working current is 100mA, the working temperature is-40 ℃ to 85 ℃, the detection distance of 2cm to 400cm is set to be 5cm, the detection distance error is 0.3cm, the position precision is less than 2.5m, and the vehicle-mounted power supply is connected; the working principle of the system is that when a truck collides, a collision sensor on the roof feels a collision signal or when an ultrasonic distance measuring sensor feels that the distance between a measured object and the truck is less than or equal to 5cm in the running process, the collision signal is transmitted into a RaspberryPi4B module, then the signal is transmitted into a GPS module according to an edited program, the GPS module decodes a signal transmitted by a satellite, then the obtained longitude and latitude information is transmitted to a micro control unit, finally, an SIM card accessed to an Internet SIM900A module transmits the information, and a worker processes the information to realize the functions of timely positioning and alarming.
The system adopts a double detection mode, simultaneously adopts a collision sensor and an ultrasonic distance measuring sensor to detect, and can complete alarm as long as one outgoing level signal exists; meanwhile, the system can give an alarm in real time, so long as the truck has a collision accident, the staff can immediately obtain the information of the traffic accident occurrence place in a short time, and convenience is provided for subsequent rescue measures.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A quick-response real-time positioning and early warning system for a truck collision accident is characterized by comprising a front-end detection unit arranged on the roof of a truck, a micro-control unit and a positioning transmission unit, wherein the micro-control unit and the positioning transmission unit are arranged in a truck carriage;
the front end detection unit comprises an electronic collision sensor and an ultrasonic ranging sensor;
the positioning transmission unit comprises a GPS and a communication module, and the electronic collision sensor and the ultrasonic ranging sensor are electrically connected with the micro control unit;
the micro control unit is electrically connected with the GPS and the communication module, the electronic collision sensors are arranged on the left side, the right side and the rear end of the roof of the truck in a distributed mode, and the ultrasonic ranging sensor is arranged at the front end of the roof of the truck.
2. The system as claimed in claim 1, wherein the micro control unit employs a raspberry pi4B module to receive signals from the electronic collision sensor and the ultrasonic ranging sensor, and then sends the geographical location information, i.e. alarm information, of the accident site to the staff for intermediate regulation and control and information transmission.
3. The system of claim 2, wherein the raspberry pi4B module of the mcu comprises a 1.5G processor, a memory card, a 5V-3A power interface, a micro HDMI port 4K resolution supporting dual display, 2 USB2.0 ports, 2 USB3.0 ports, a gigabit ethernet port, and a GPIO interface, and the GPIO interface is connected to the front-end detection and information transmission unit.
4. The system as claimed in claim 2, wherein the electronic collision sensor is a collisionsenssv2.0 module, which outputs a low level when touched, and keeps a high level when released for detecting a contact collision, the module outputs a low level when the module is mounted, outputs a high level when the module is mounted, outputs a low level when the module is mounted, outputs no collision when the module is mounted, and has an M3 mounting hole for easy mounting, and a switch indicator light is provided, and the light is turned on when a collision occurs and turned off when no collision occurs.
5. A rapid response real-time location and early warning system for collision accident of cargo truck as claimed in claim 1, wherein said ultrasonic ranging sensor is HC-SR04 ultrasonic ranging sensor, inputting at least 10us trigger signal to TRIG pin, sending 8 cycles of 40kHz level internally and detecting ECHO, ECHO outputting high level ECHO signal once ECHO signal is detected, the pulse width of ECHO signal is proportional to the measured distance, therefore the distance can be calculated by the time interval from transmitting signal to received ECHO signal.
6. The system as claimed in claim 1, wherein the GPS employs an EZ-0048GPS module to perform satellite communication with UART or USB, the GPS is connected to the micro control unit to obtain precise geographical location information of the truck, and the communication module employs an SIM900A module to transmit positioning information of the truck.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010974158.4A CN115249404A (en) | 2020-09-16 | 2020-09-16 | Quick-response real-time positioning and early warning system for truck collision accident |
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| CN202010974158.4A CN115249404A (en) | 2020-09-16 | 2020-09-16 | Quick-response real-time positioning and early warning system for truck collision accident |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1636804A (en) * | 2004-01-08 | 2005-07-13 | 株式会社电装 | Collision obstacle detection apparatus for a vehicle |
| CN104408870A (en) * | 2014-11-13 | 2015-03-11 | 上海理工大学 | Automatic alarm device for car crash |
| CN106004754A (en) * | 2015-11-24 | 2016-10-12 | 昶洧香港有限公司 | Collision alarm system |
| CN107195201A (en) * | 2017-07-18 | 2017-09-22 | 青岛厚科信息工程有限公司 | A chain of collision early warning system is prevented on highway |
| CN207650392U (en) * | 2017-09-22 | 2018-07-24 | 广东科学技术职业学院 | A kind of anti-collision early warning system of intelligent robot |
| CN110667571A (en) * | 2019-10-16 | 2020-01-10 | 华南理工大学 | Automatic parking control system interacting with parking lot |
-
2020
- 2020-09-16 CN CN202010974158.4A patent/CN115249404A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1636804A (en) * | 2004-01-08 | 2005-07-13 | 株式会社电装 | Collision obstacle detection apparatus for a vehicle |
| CN104408870A (en) * | 2014-11-13 | 2015-03-11 | 上海理工大学 | Automatic alarm device for car crash |
| CN106004754A (en) * | 2015-11-24 | 2016-10-12 | 昶洧香港有限公司 | Collision alarm system |
| CN107195201A (en) * | 2017-07-18 | 2017-09-22 | 青岛厚科信息工程有限公司 | A chain of collision early warning system is prevented on highway |
| CN207650392U (en) * | 2017-09-22 | 2018-07-24 | 广东科学技术职业学院 | A kind of anti-collision early warning system of intelligent robot |
| CN110667571A (en) * | 2019-10-16 | 2020-01-10 | 华南理工大学 | Automatic parking control system interacting with parking lot |
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