CN114059474A - Intelligent expressway accident sensing and intelligent induction security device and method - Google Patents
Intelligent expressway accident sensing and intelligent induction security device and method Download PDFInfo
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Abstract
The invention discloses an intelligent expressway accident sensing and intelligent induction security device and a method, wherein an accident sensing module is used for sensing a collision vibration electric signal generated by vibration generated by a guardrail being collided and receiving a collision sound electric signal generated by sound generated when a traffic accident happens; the device also comprises a communication module, a positioning module, a power supply module, a data memory, a processor module and an anti-shell-dismantling device; and the processor module is used for judging the instruction stored in the data memory and executing whether to send the collision vibration electric signal, the collision sound electric signal and the position data to the cloud server through the communication module. The intelligent expressway accident sensing and intelligent induction security device and method can enable an expressway monitoring center to directly or indirectly master and know the current position of an expressway, the road condition of a district and the condition of an accident scene in a very short time.
Description
Technical Field
The invention relates to the technical field of highway facilities, in particular to an intelligent highway accident sensing and intelligent induction security device and method.
Background
In the initial stage of large-scale construction of domestic highways, 24-hour all-weather uninterrupted patrol system is generally adopted for each highway section in order to ensure smooth and safe driving of the section. Patrol personnel need to collect relevant traffic information in time and need to deal with the traffic information on site when meeting necessary conditions. Due to the limitations of information technology, economic conditions and the like at that time, only the original mode can be adopted to complete the task of 'smooth protection and security protection'.
Chinese patent CN107604853B discloses an intelligent expressway protective guard collision device and a control method thereof, which can realize the effect of timely discovering traffic accidents through a vibration sensing terminal capable of interacting with control center information, but has the following problems:
1. in order to prevent false alarm, whether a real accident occurs or whether auxiliary judgment is carried out through the change of the traffic flow of a certain section is judged in an image acquisition and image recognition mode, but in actual implementation, the cost is greatly increased by using a high-definition image acquisition camera, the cost advantage is not achieved in high-density laying, and accurate perception of the whole section cannot be achieved in low-density laying; the image acquisition effect is poor by using a general camera, and no specific indication is given by who judges whether an accident occurs by identifying the image. Meanwhile, the problem that whether accidents happen or not is judged in an auxiliary mode by combining the change of the traffic flow, the existing traffic flow is generally counted by a sensor or a camera which is arranged on a portal frame which is arranged on a highway at intervals, the difference can be sensed through dynamic monitoring of the traffic flow only when the traffic jam of the highway is delayed, the traffic jam has hysteresis compared with the occurrence of the traffic accidents, and the traffic jam can be difficult to happen even if a vehicle collides with a guardrail on a highway at a low-flow section; due to the defects, the judgment accuracy rate of the patent cannot be effectively improved in the actual implementation process.
2. The collision signal can be sensed only after the vehicle collides with the guardrail, namely, the accident that the vehicle collides with the guardrail can be judged only, and the accident that the vehicle does not collide with the guardrail, such as the vehicle collision, the accident that the vehicle collides with an invader but does not collide with the guardrail, and the like, can not be identified.
Disclosure of Invention
The invention aims to provide an intelligent expressway accident sensing and intelligent induction security device and method aiming at the defects of the prior art, and the device and method can solve the problems.
In order to achieve the above object, the present invention provides an intelligent expressway accident sensing and intelligent induction security device, comprising: the accident sensing module comprises a vibration sensor and a first microphone, wherein the vibration sensor is used for sensing a collision vibration electric signal generated by the collision of the guardrail or vibration generated by resonance, and the first microphone is used for receiving a collision sound electric signal generated by sound generated when a traffic accident occurs; the communication module is used for transmitting signals with the cloud server; a positioning module for generating position data; a power module for providing power; the data storage is used for storing electronic data, including but not limited to instructions, audio data or data transmitted by the accident sensing module and the communication module; the processor module is used for analyzing and processing data; the accident sensing module, the data memory, the communication module, the positioning module and the power supply module are all in electric signal connection with the processor module; the collision vibration electric signal or the collision sound electric signal is transmitted to the processor module, and the processor module executes the instruction stored by the data memory to judge and execute whether the collision vibration electric signal, the collision sound electric signal and the position data are transmitted to the cloud server through the communication module; the anti-dismantling shell is used for providing an installation foundation or support for the accident sensing module, the processor module, the data storage device, the communication module, the positioning module and the power supply module.
Furthermore, the intelligent expressway accident sensing and intelligent induction security device is characterized in that the anti-dismantling shell is provided with a first shell, a second shell and an anti-dismantling switch, and the anti-dismantling switch is arranged between the first shell and the second shell and is in electrical signal connection with the processor module.
Furthermore, the intelligent expressway accident sensing and intelligent induction security device further comprises a magnetic control switch and a voice communication module, wherein the voice communication module comprises a voice power amplifier and a communication microphone; the magnetic control switch and the voice communication module are electrically connected with the processor module.
Furthermore, the intelligent expressway accident sensing and intelligent induction security device comprises a processor module, a vibration sensor, a magnetic control switch, a power supply module and an anti-dismantling switch, wherein the processor module comprises a front-end processing unit and a central processing unit which are connected through electric signals; the data memory, the communication module, the voice power amplifier, the call microphone, the positioning module and the power supply module are all in electric signal connection with the central processing unit.
Furthermore, the intelligent expressway accident sensing and intelligent induction security device comprises a power module and a solar panel, wherein the power module comprises a storage battery and the solar panel which is electrically connected with the storage battery.
Furthermore, the intelligent expressway accident sensing and intelligent induction security device further comprises a temperature sensor and a humidity sensor, and the temperature sensor and the humidity sensor are electrically connected with the processor module.
Furthermore, the intelligent expressway accident sensing and intelligent induction security device comprises a positioning module and a GPS positioning module.
Further, according to the intelligent expressway accident sensing and intelligent induction security device, the vibration sensor comprises a 0805 patch packaging device, and balls are arranged inside the vibration sensor.
Furthermore, the intelligent expressway accident sensing and intelligent induction security device comprises a vibration sensor, a bias circuit R78 and R79, a current limiting resistor R77 and a filter capacitor C70, wherein the vibration sensor is connected with the bias circuit R78 and the bias circuit R79; the filter capacitor C70 filters and decouples the impact signal, the output end of the vibration sensor circuit is connected to the front-end processing unit, and the front-end processing unit receives the indeterminate signal sent by the vibration sensor.
Furthermore, the intelligent expressway accident sensing and intelligent induction security device further comprises a light induction module, wherein the light induction module comprises a plurality of LED lamps, and the LED lamps are electrically connected with the processor module.
The invention discloses an intelligent expressway accident sensing and intelligent inducing method, which comprises the following steps:
a, establishing a mapping relation, namely establishing the mapping relation between the collision vibration electric signal, the collision sound electric signal and the traffic accident type according to the collision vibration electric signal and the collision sound electric signal data of the historical traffic accidents,
b, storing the mapping relation in a data memory, wherein the mapping relation specifically comprises the following mapping relations of the collision vibration electric signals and the collision sound electric signals under the four traffic accident conditions: a. the vehicle impacts the vehicle; b. the vehicle impacts the guard rail; c. the vehicle impacts a person or an object whose weight is greater than a certain value; d. the vehicle impacts the highway ground;
when the accident sensing module receives the vibration generated by the collision or the resonance of the guardrail, the collision sensor distinguishes whether the vibration is generated under the traffic accident according to the rolling frequency and the frequency of the inner rolling beads in the device cavity, and the collision is triggered under the non-traffic accident, such as the collision generated by the wind power or the rolled stone colliding the guardrail, and the like;
and D, when the traffic accident occurs, the processor module executes the instruction stored in the data memory, sends the collision vibration electric signal, the collision sound electric signal and the position data to the cloud server through the communication module, and simultaneously excites the light induction module to generate a light signal to remind the vehicle of avoiding in the traffic accident road section.
Further, according to the intelligent expressway accident sensing and intelligent inducing method, the cloud server matches the manual judgment and handling data of the accident according to the collision vibration electric signals and the collision sound electric signals uploaded by the communication module and the expressway control center to form traffic accident judgment model data; the cloud server performs matching and updating on manual judgment and handling data of the accident according to the collision vibration electric signal and the collision sound electric signal which are newly uploaded by the communication module and the highway control center to form new traffic accident judgment model data; the communication module downloads new traffic accident judgment model data and a processing instruction from the cloud server, and the processor module processes the newly received collision vibration electric signals and collision sound electric signals according to the new traffic accident judgment model data and the processing instruction.
The invention has the beneficial effects that: when the accident perception module receives vibration generated by collision or resonance of the guardrail, the impact sensor distinguishes whether the vibration is generated under a traffic accident according to the rolling frequency and frequency of the internal rolling beads in the device cavity, interference triggers such as wind power or collision generated by the falling stones impacting the guardrail under a non-traffic accident, and the like, and meanwhile, the processor judges whether the traffic accident occurs according to whether the collision vibration electric signals and the collision sound electric signals meet the mapping relation; when the traffic accident is judged to happen, the processor module executes the instruction stored in the data storage device, and sends the collision vibration electric signal, the collision sound electric signal and the position data to the cloud server through the communication module, so that the traffic accident information can be quickly acquired by the expressway monitoring center, rescue and traffic dispersion can be organized as soon as possible, and the emergency alarm plays a key role in the serious traffic accident that the traffic accident participants cannot give an alarm.
Drawings
FIG. 1 is a block diagram of the apparatus of the present invention.
Fig. 2 is a microphone amplification circuit diagram of the device of the present invention.
FIG. 3 is a circuit diagram of a data memory of the apparatus of the present invention.
Fig. 4 is a circuit diagram of a cpu of the apparatus of the present invention.
Fig. 5 is a circuit diagram of an audio power amplifier of the device of the present invention.
Fig. 6 is a circuit diagram of a crash sensor of the device of the present invention.
Fig. 7 is a circuit diagram of a tamper switch of the apparatus of the present invention.
Fig. 8 is a circuit diagram of an LED light inducing module of the apparatus of the present invention.
The reference numerals include:
the intelligent monitoring system comprises a front-end processing unit 1, a central processing unit 2, a collision sensor 10, a magnetic control switch 11, an LED lamp 12, a temperature and humidity sensor 13, an anti-disassembly switch 14, a positioning module 21, a data storage 22, a call microphone 23, a voice power amplifier 24, a communication module 25, a solar panel 100 and a storage battery 101.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 8, as an embodiment, the intelligent highway accident sensing and intelligent induction security device of the present invention comprises: the accident sensing module comprises a vibration sensor and a first microphone, wherein the vibration sensor is used for sensing a collision vibration electric signal generated by the collision of the guardrail or vibration generated by resonance, and the first microphone is used for receiving a collision sound electric signal generated by sound generated when a traffic accident occurs; the communication module 25, the communication module 25 is used for generating signal transmission with the cloud server; a positioning module 21 for generating position data; a power module for providing power; a data storage 22 for storing electronic data including, but not limited to, instructions, audio data or data communicated from the incident awareness module, the communication module 25; the processor module is used for analyzing and processing data; the accident sensing module, the data memory 22, the communication module 25, the positioning module 21 and the power supply module are all in electric signal connection with the processor module; the collision vibration electric signal or the collision sound electric signal is transmitted to the processor module, and the processor module judges and executes the instruction stored in the data storage 22 to judge whether the collision vibration electric signal, the collision sound electric signal and the position data are transmitted to the cloud server through the communication module 25; and the anti-dismantling shell is used for providing an installation foundation or support for the accident sensing module, the processor module, the data storage 22, the communication module 25, the positioning module 21 and the power supply module.
According to the intelligent expressway accident sensing and intelligent induction security device, when an accident sensing module receives vibration generated by collision or resonance of a guardrail, a collision sensor distinguishes whether the vibration is generated under a traffic accident or not according to the rolling frequency and frequency of an inner rolling bead in a device cavity, interference triggers such as collision generated by wind power or falling stones colliding the guardrail and the like under a non-traffic accident, and meanwhile a processor judges whether the traffic accident occurs or not according to whether a collision vibration electric signal and a collision sound electric signal meet a mapping relation or not; when the traffic accident is judged to happen, the processor module executes the instruction stored in the data storage 22, and sends the collision vibration electric signal, the collision sound electric signal and the position data to the cloud server through the communication module 25, so that the traffic accident information can be quickly acquired by the expressway monitoring center, rescue and traffic dispersion can be organized as soon as possible, and the emergency alarm plays a key role in the serious traffic accident that the traffic accident participants cannot alarm.
The intelligent expressway accident sensing and intelligent induction security device provided by the invention realizes the effects of reliable finished product quality, low false alarm rate and low installation and implementation cost through comparison of various improved design schemes. Specifically, the device is arranged at the relevant positions of guardrails or guardrail columns and the like at the side of the highway at intervals of 10-50 meters, so that the real meaning of wide coverage of the current roadside device of the highway is realized, drivers and passengers who have problems on the highway are directly connected with a highway monitoring center in a short time, the problem of short boards which are difficult to alarm and position in various projects of the current highway is solved, and the problem that the blind spots of the roadside equipment of the current highway are more is solved. The intelligent expressway accident sensing and intelligent induction security device disclosed by the invention is formally added into the expressway network of the future, so that an intelligent road, a reliable network and a high-efficiency cloud are realized.
According to the intelligent expressway accident sensing and intelligent induction security device, the anti-dismantling shell is provided with the first shell, the second shell and the anti-dismantling switch 14, and the anti-dismantling switch 14 is arranged between the first shell and the second shell and is in electrical signal connection with the processor module.
The intelligent expressway accident sensing and intelligent induction security device further comprises a magnetic control switch 11 and a voice communication module, wherein the voice communication module comprises a voice power amplifier 24 and a communication microphone 23; the magnetic control switch 11 and the voice call module are electrically connected with the processor module.
The intelligent expressway accident sensing and intelligent induction security device comprises a processor module, a vibration sensor, a magnetic control switch 11, a power supply module and an anti-dismantling switch 14, wherein the processor module comprises a front-end processing unit 1 and a central processing unit 2 which are connected through electric signals; the data memory 22, the communication module 25, the voice power amplifier 24, the call microphone 23, the positioning module 21 and the power supply module are all in electric signal connection with the central processing unit 2.
According to the intelligent expressway accident sensing and intelligent induction security device, the power module comprises the storage battery 101 and the solar panel, and the solar panel is electrically connected with the storage battery 101.
The intelligent expressway accident sensing and intelligent induction security device further comprises a temperature sensor and a humidity sensor, and the temperature sensor and the humidity sensor are electrically connected with the processor module.
According to the intelligent expressway accident sensing and intelligent induction security device, the positioning module 21 comprises a Beidou positioning module 21 and a GPS positioning module 21.
According to the intelligent expressway accident sensing and intelligent induction security device, the vibration sensor comprises a 0805 patch packaging device, and balls are arranged inside the vibration sensor.
According to the intelligent expressway accident sensing and intelligent induction security device, the vibration sensor is connected with the bias circuits R78 and R79, the current limiting resistor R77 and the filter capacitor C70; the filter capacitor C70 filters and decouples the impact signal, the output end of the vibration sensor circuit is connected to the front-end processing unit 1, and the front-end processing unit 1 receives the unshaped signal sent by the vibration sensor.
The intelligent expressway accident sensing and intelligent induction security device further comprises a light induction module, wherein the light induction module comprises a plurality of LED lamps 12, the LED lamps 12 are electrically connected with the processor module, and the device can excite the light induction module in a traffic accident road section to generate light signals to remind vehicles to avoid.
The intelligent expressway accident sensing and intelligent induction security device can realize the following functions through various implementation modes or combinations thereof:
1. the vibration alarm function: the front-end processing unit 1 is used for carrying out component discrimination on a vibration signal generated when a vehicle collides a guardrail and sent by a vibration sensor or high-decibel sound generated when the vehicle collides and sent by a first microphone, and comparing the sound signal with a pre-stored sound signal. When the high decibel sound generated by the collision of the traffic accident vehicles is larger than a preset threshold value of the device, real-time alarm is triggered, the central processing unit 2 executes an instruction and sends a collision vibration electric signal, a collision sound electric signal and position data to a cloud server through the communication module 25, and the cloud server can be arranged in a highway monitoring center; after receiving the information, the highway monitoring center can call the site situation through the voice communication module of the device, and immediately make a judgment according to the site situation and then implement related rescue and dredging work.
2. The real-time call function: the device is provided with a magnetic control button, the magnetic control button is triggered to realize the connection with a highway monitoring center through a voice call module, the call alarm is realized or the current field condition is explained, and after judgment is made by workers of the highway monitoring center, related departments are informed to carry out related rescue and dredging work.
3. Light induction function of the LED lamp 12: the defect of power supply energy of a solar power supply is overcome by a PWM (pulse-width modulation) and real-time control method. When accident problems or weather changes in road section areas possibly affect visibility, the red, green and blue high-brightness LED lamps 12 of the light induction module realize the safe driving induction function of red, green, blue, yellow and white or generate the red and blue flashing light warning effect.
4. Preset language induction function: the data memory 22 is provided with a large capacity FLASH for storing part of the voice information with high use frequency. After a traffic accident occurs, in order to avoid the problem of surrounding observation, the highway monitoring center sends instructions to all devices in the area, sends the same voice and reminds drivers and passengers to pay attention to the safe, orderly and fast accident scene.
5. Area or segment broadcast function: the communication mode with high communication speed is used, and the problem of large voice broadband communication is solved. Under the condition of congestion, the device informs drivers and passengers of paying attention to the real-time condition of safely and timely broadcasting the road condition in front through the broadcasting function of the device, and avoids the psychological problem caused by congestion of the drivers and passengers, thereby avoiding the occurrence of secondary accidents and playing an auxiliary role in ensuring the smoothness of roads.
6. High-precision positioning function: this device has used big dipper, GPS two orientation module 21, realizes the purpose of accurate positioning. When the current position of the expressway has a problem, a driver and a passenger are not required to provide a specific position for alarming, so that the specific position where the prior alarming person cannot clearly say the problem is changed, and the embarrassing situation that the rescue time is prolonged and the police-receiving person is stranded is caused.
7. The network communication function: the communication module 25 of the present invention uses the current CAT1 communication mode with powerful communication function and wide coverage area for network information transmission. The problem that the NB _ IOT network which is widely applied in the current market has more blind spots or is not covered at all in the region outside the vast city is solved, and the risk of network quitting is also faced; in addition, the problems of unstable communication and difficult maintenance brought by the ad hoc network communication are solved.
8. Solar energy power supply function: this device absorbs solar energy through the top solar panel 100 of preventing tearing open the shell and converts the electric energy into and save the battery 101 in equipment inside, supplies all circuit parts in the device to provide the power, solves the engineering construction degree of difficulty and the maintenance degree of difficulty in the future through outside power supply.
9. Multiple auxiliary functions: the device solves the problem of solar energy failure alarm of the device by absorbing the research and development experiences of previous projects; displaying the electric quantity of the energy storage battery; temperature and humidity at the device position points; the device can alarm against theft; the functions of private disassembly, destruction, alarm of the position of the mobile device and the like.
Through various technical functions of the device, the highway monitoring center can directly or indirectly master and know the current position of the highway, the road condition of a district and the condition of an accident scene in a very short time. The highway monitoring center can selectively and immediately inform the road administration department, the traffic police department or the medical system of the problem from the position of the current occurrence situation through the real-time situation of the accident scene through the shortest traffic path. Thereby ensuring the smooth road in the shortest time. The expressway monitoring center can also use the functions of broadcasting and induction lamps immediately to perform acousto-optic induction on drivers and passengers who pass through the accident site, further avoid the secondary occurrence of the accident site, and solve the problem that the expressway drivers and passengers have long time for handling traffic accidents, have complex accident handling process, blind method and the like.
As an implementation mode, in order to prevent the device from false alarm, the monitoring center can be selected to receive alarm information, and then the video monitoring is set on a road section to check whether the matched identification site is a real accident or not in real time, so as to assist in judging whether the false alarm is caused by other reasons or not, and further improve the accuracy of the device alarm prompt.
As an implementation manner, the vibration sensor, the data storage 22, the light induction module, the positioning module 21, the communication module 25, the voice call module, the power supply module, the front-end processing unit 1, and the central controller of the present invention respectively include a trigger circuit of the collision sensor 10, a data storage circuit, an optical analog control circuit of the LED lamp 12, a beidou & GPS positioning module 21, a communication circuit, a voice call circuit, a solar power supply control circuit, a front-end processing unit circuit, and a central control circuit. The purpose of adding the front-end processing unit 1 is to process some peripheral requests which are frequently triggered and consume relatively low battery energy, and avoid the central processing unit 2 from being frequently awakened and wasting battery energy.
According to the intelligent expressway accident sensing and intelligent inducing method, when a trigger circuit receives impact vibration to generate an impact vibration electric signal, a first microphone receives high-decibel object impact sound to generate an impact sound electric signal, the generated impact vibration electric signal and the generated impact sound electric signal are sent to a front-end processing unit 1, the processing unit is compared with a corresponding built-in threshold value to judge whether the signal belongs to a traffic accident signal within the position range of the intelligent expressway accident sensing and intelligent inducing device, if yes, a central processing unit 2 and a communication module 25 are awakened through serial port communication, the central processing unit 2 executes an instruction to send the collected impact vibration electric signal and the collected impact sound electric signal to a cloud server, and if not, the intelligent expressway accident sensing and intelligent inducing device continues to enter a dormant state;
when the magnetic control switch 11 is pressed, the front-end processing unit 1 is triggered to be awakened, the front-end processing unit 1 awakens the central processing unit 2 and the communication module 25 through serial port communication, the central processing unit 2 executes an instruction to send call request information of the position of the device to the cloud server, and the central processing unit 2 starts built-in voice broadcast related content;
when the position information received by the positioning module 21 changes, the central processing unit 2 directly sends the current position information and the position information to be stored of the device to the cloud server through the communication module 25.
The vibration sensor may be a crash sensor 10.
The functional relationship of the above unit circuits is as follows: this device at highway guardrail or guardrail post relevant position, when the vehicle normal operating, vibration sensor is general 0805 paster encapsulation device, can weld in the circuit bottom plate of this device directly, and the mode that the universal triggering of ball is adopted to inside principle, and certain mistake trigger signal can be sent out in the work, through the comparison back of front end processing unit 1, the device is handled and is accomplished and can continue to get into the standby.
The invention discloses an intelligent expressway accident sensing and intelligent inducing method, which comprises the following steps:
a, establishing a mapping relation, namely establishing the mapping relation between the collision vibration electric signal, the collision sound electric signal and the traffic accident type according to the collision vibration electric signal and the collision sound electric signal data of the historical traffic accidents,
and B, storing the mapping relationship in a data memory 22, wherein the mapping relationship specifically comprises the following mapping relationships of the collision vibration electric signals and the collision sound electric signals under the four traffic accident conditions: a. the vehicle impacts the vehicle; b. the vehicle impacts the guard rail; c. the vehicle impacts a person or an object whose weight is greater than a certain value; d. the vehicle impacts the highway ground;
when the accident sensing module receives the vibration generated by the collision or the resonance of the guardrail, the collision sensor distinguishes whether the vibration is generated under the traffic accident according to the rolling frequency and the frequency of the inner rolling beads in the device cavity, and the collision is triggered under the non-traffic accident, such as the collision generated by the wind power or the rolled stone colliding the guardrail, and the like;
and D, when the traffic accident is judged to happen, the processor module executes the instruction stored in the data memory 22 to execute and sends the collision vibration electric signal, the collision sound electric signal and the position data to the cloud server through the communication module 25, and meanwhile, the device in the traffic accident road section excites the light induction module to generate a light signal to remind the vehicle of avoiding.
Further, according to the intelligent expressway accident sensing and intelligent inducing method, the cloud server matches the manual judgment and handling data of the accident according to the collision vibration electric signals and the collision sound electric signals uploaded by the communication module 25 and the expressway control center to form traffic accident judgment model data; the cloud server performs matching and updating on the manual judgment and handling data of the accident according to the collision vibration electric signal, the collision sound electric signal and the highway control center which are newly uploaded by the communication module 25 to form new traffic accident judgment model data; the communication module 25 downloads new traffic accident judgment model data and a processing instruction from the cloud server, and the processor module processes the newly received collision vibration electric signals and collision sound electric signals according to the new traffic accident judgment model data and the processing instruction.
The intelligent expressway accident sensing and intelligent inducing method can automatically judge whether a certain road section has a traffic accident or not and the type of the accident, and can continuously improve the judgment accuracy and reduce the misjudgment rate according to continuously updated traffic accident judgment model data.
The device of the invention is impacted by the center of impact force to cause the displacement of the device, the anti-dismantling switch 14 is arranged on a bottom box which is formed by casting aluminum alloy, namely a first shell, and is scattered with the middle of a first shell panel which is formed by injection molding by adopting PE, at the moment, the anti-dismantling switch 14 is triggered, the whole device is subjected to external force with overlarge strength, a controller circuit part works and fails, a battery fails, a communication module 25 fails, and the device is damaged, so that a normal impact signal, an anti-dismantling signal and a displacement signal are possibly sent out or no heartbeat signal is sent out within set time, through the information, the system can judge that the position of the device belongs to an offline condition, when the system finds the problem, the system repeatedly sends query information for many times to search the equipment of the position device in a continuous searching mode, if the system is always in an unconnection state, the system is compared with the time shaft of the previous normal state through operation, sending out alarm processing of the position device being hit or damaged; 3. the position of the device has no collision problem, and only the passers-by want to send out required help-seeking signals through the position of the device. The device can immediately send a signal that the position of the device needs help by pressing the magnetic control switch 11.
As shown in FIG. 6, the crash sensor 10 is connected with bias circuits R78 and R79, a current limiting resistor R77 and a filter capacitor C70. The filter capacitor C70 filters and decouples weak impact signals, the output end of the circuit of the impact sensor 10 is connected with the Pin17 of the front-end processing unit 1, the front-end processing unit 1 receives the weak irregular signals sent by the impact sensor 10, the high and low levels are random, the judgment of the pulse width and the number of the signals belongs to the impact signals is realized through the Pin17 of the front-end processing unit 1, and finally the central processing unit 2 sends the signals; the magnetic switch 11 is directly connected with Pin13 of the front-end processing unit 1; when the magnetic control switch 11 is pressed, a low level is generated, and after receiving the low level, the Pin13 of the front-end processing unit 1 sends data to the central processing unit 2 through the serial port to send signals; the LED lamps 12 have 3 groups in total, each group is composed of three independent phi 5 ultra-bright LED lamps 12 of red, green and blue, on the structural design of the shell cover of the device, each group of LED lamps 12 adopts an additional special high-reflection spotlight cup, the brightness of the LED lamp 12 group is improved, the outer cover of the LED lamp 12 group adopts a plurality of groups of prism combinations, the light emitted by the LED lamps 12 is refracted and reflected through the prisms after being converged, the light rays of the LED lamps 12 are superposed for a plurality of times, the brightness is multiplied, the luminous effect of the LED lamp 12 group is improved, and therefore, under the condition of low energy, the luminous efficiency is obviously improved, and the display and warning effects are further improved. The red cathode of the LED lamp 12 is directly connected to the Pin3 of the front end processing unit 1, the green cathode of the LED lamp 12 is directly connected to the Pin2 of the front end processing unit 11, and the blue cathode of the LED lamp 12 is directly connected to the Pin1 of the front end processing unit 1.
FIG. 8 shows that the LED lamp 12 has three sets of anodes of red D90 connected to a current amplifier Q1 via a resistor R90, a red D91 connected to a current amplifier Q1 via a resistor R91, a red D92 connected to a current amplifier Q1 via a resistor R92, a green D93 connected to a current amplifier Q1 via a resistor R93, a green D94 connected to a current amplifier Q1 via a resistor R94, a green D95 connected to a current amplifier Q1 via a resistor R95, a blue D96 connected to a current amplifier Q1 via a resistor R96, a blue D97 connected to a current amplifier Q1 via a resistor R97, a blue D98 connected to a current amplifier Q1 via a resistor R98, and a blue D1 connected to a Pin16 of the front-end processing unit 11 via a voltage-reducing current-limiting resistor R4, and receiving the modulation function of the front-end processing unit 11 to implement PWM of the LED lamp 12 to adjust the brightness of red, green, yellow, and other colors; the temperature and humidity sensor 13 is connected with a voltage divider R12, a decoupling capacitor C8 is connected with a Pin4 of the front-end processing unit 1, data acquisition is carried out once when the front-end processing unit 1 is awakened every time, and the data is temporarily stored in an RAM of the front-end processing unit 1 for standby at any time;
fig. 7, the tamper switch 14 is directly connected to Pin14 of the front-end processing unit 1 through a current-limiting resistor R60, the front-end processing unit 1 receives low level trigger from the tamper switch 14, the normal state of the tamper switch 14 is high level, the tamper switch 14 is mounted between a bottom box made of aluminum alloy and cast in one of the shells and a panel made of PE and injection molded in the other shell, the device generates low level after breaking the shells, and triggers the front-end processing unit 1; the Beidou/GPS unit is connected with the central processing unit 2 through serial port communication, and a positioning reading instruction is sent by the central processing unit 2; the data memory 22 is connected with the central processing unit 2 through the SPI interface, and the central processing unit 2 reads and writes the data memory 22; the microphone 23 circuit is an LM358 operational amplifier pre-amplifying circuit, the sound collected by the MIC is amplified to a certain voltage by the microphone 23 circuit and then is sent to an ADC interface of the central processing unit 2 for real-time ADC sound collection, and the converted sound data stream is sent out through the central processing unit 2 and the communication module 25; the voice power amplifier 24 consists of XS9871A and a peripheral circuit, voice data are subjected to DAC conversion by the central processing unit 2 and then enter the voice power amplifier 24 for power amplification, and the voice power amplifier is connected with a full-voice loudspeaker with impedance of 4 omega/1.5 inches, and the power can reach about 3W; the communication module 25 is connected to the dedicated interface of the central processing unit 2 through the serial port, and thus, the work requirement of external transmission of data of the central processing unit 2 is fulfilled.
The front-end processing unit 1 adopts an 8051 singlechip. The central processing unit 2 adopts an STM32 series ARM central processing unit 2, can process frequently awakened signals under the cooperation of a single chip microcomputer, ensures that the central processing unit 2 is not frequently awakened, and saves more energy sources by the central processing unit 2.
The data storage 22 adopts W25Q256, and can realize a storage space for pre-storing at least 50 preset voice programs. The microphone 23 circuit 23 consists of a dual operational amplifier LM358, and the amplification capacity of the two-stage operational amplifier is enough to realize that the sound within 20 meters can be clearly picked up and heard. The big dipper/GPS unit adopts big dipper, GPS bimodulus, and the precision centimetre level. The communication module 25 employs a CAT1 communication module 25. The solar panel 100 is packaged by 70mm glue dripping, and the solar panel 100 can generate 6V/110mA energy under normal sun. The storage battery 101 can be formed by a high-temperature and low-temperature resistant 18650 ternary lithium battery in the southern environment, and when the solar panel 100 does not work completely, the working time of about 25 days can be maintained when the storage battery 101 is in the southern environment; the storage battery 101 can only use 3 AA nickel-metal hydride batteries to form the storage battery 101 in the northern area, and when the solar panel 100 does not work at all, the storage battery 101 can maintain the working time of about 7 days in the northern area.
In conclusion, the present invention has the above-mentioned excellent characteristics, so that it can be used to enhance the performance of the prior art and has practicability, and it becomes a product with practical value.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, there may be variations in the specific embodiments and applications according to the inventive concept, and the present disclosure should not be construed as limiting the invention.
Claims (9)
1. Wisdom highway accident perception and the induced security device of intelligence, its characterized in that includes:
the accident sensing module comprises a vibration sensor and a first microphone, wherein the vibration sensor is used for sensing a collision vibration electric signal generated by the collision of the guardrail or vibration generated by resonance, and the first microphone is used for receiving a collision sound electric signal generated by sound generated when a traffic accident occurs;
the communication module is used for transmitting signals with the cloud server;
a positioning module for generating position data;
a power module for providing power;
the data storage is used for storing electronic data, including but not limited to instructions, audio data or data transmitted by the accident sensing module and the communication module;
the processor module is used for analyzing and processing data; the accident sensing module, the data memory, the communication module, the positioning module and the power supply module are all in electric signal connection with the processor module; the collision vibration electric signal or the collision sound electric signal is transmitted to the processor module, and the processor module executes the instruction stored by the data memory to judge and execute whether the collision vibration electric signal, the collision sound electric signal and the position data are transmitted to the cloud server through the communication module;
the anti-dismantling shell is used for providing an installation foundation or support for the accident sensing module, the processor module, the data storage device, the communication module, the positioning module and the power supply module.
2. The intelligent highway accident sensing and intelligent induction security device of claim 1, wherein: the anti-dismantling shell is provided with a first shell, a second shell and an anti-dismantling switch, and the anti-dismantling switch is arranged between the first shell and the second shell and is connected with the processor module through an electric signal.
3. The intelligent highway accident sensing and intelligent induction security device of claim 1, wherein: the voice call module comprises a voice power amplifier and a call microphone; the magnetic control switch and the voice communication module are electrically connected with the processor module.
4. The intelligent highway accident sensing and intelligent induction security device of claim 3, wherein: the processor module comprises a front-end processing unit and a central processing unit which are connected by electric signals, and the vibration sensor, the magnetic control switch, the power supply module and the anti-dismantling switch are all connected with the front-end processing unit by electric signals; the data memory, the communication module, the voice power amplifier, the call microphone, the positioning module and the power supply module are all in electric signal connection with the central processing unit.
5. The intelligent highway accident sensing and intelligent induction security device of claim 1, wherein: the vibration sensor comprises a 0805 patch packaging device, and a ball is arranged inside the vibration sensor.
6. The intelligent highway accident sensing and intelligent induction security device of claim 1, wherein: the vibration sensor is connected with bias circuits R78 and R79, a current limiting resistor R77 and a filter capacitor C70; the filter capacitor C70 filters and decouples the impact signal, the output end of the vibration sensor circuit is connected to the front-end processing unit, and the front-end processing unit receives the indeterminate signal sent by the vibration sensor.
7. The intelligent highway accident sensing and intelligent induction security device of claim 1, wherein: the LED lamp is characterized by further comprising a light induction module, wherein the light induction module comprises a plurality of LED lamps, and the LED lamps are electrically connected with the processor module.
8. The intelligent expressway accident sensing and intelligent inducing method is characterized by comprising the following steps: the intelligent expressway accident sensing and intelligent induction security device using the invention comprises:
a, establishing a mapping relation, namely establishing the mapping relation between the collision vibration electric signal, the collision sound electric signal and the traffic accident type according to the collision vibration electric signal and the collision sound electric signal data of the historical traffic accidents,
b, storing the mapping relation in a data memory, wherein the mapping relation specifically comprises the following mapping relations of the collision vibration electric signals and the collision sound electric signals under the four traffic accident conditions: firstly, the vehicle collides with the vehicle; secondly, the vehicle impacts the guard rail; thirdly, the vehicle impacts people or objects with the weight larger than a certain value; fourthly, the vehicle impacts the ground of the highway;
when the accident sensing module receives the vibration generated by the collision or the resonance of the guardrail, the collision sensor distinguishes whether the vibration is generated under the traffic accident according to the rolling frequency and the frequency of the inner rolling beads in the device cavity, and the collision is triggered under the non-traffic accident, such as the collision generated by the wind power or the rolled stone colliding the guardrail, and the like;
and D, when the traffic accident occurs, the processor module executes the instruction stored in the data memory, sends the collision vibration electric signal, the collision sound electric signal and the position data to the cloud server through the communication module, and simultaneously excites the light induction module to generate a light signal to remind the vehicle of avoiding in the traffic accident road section.
9. The intelligent highway accident sensing and intelligent induction method according to claim 8, wherein: the cloud server matches the manual judgment and handling data of the accident according to the collision vibration electric signal and the collision sound electric signal uploaded by the communication module and the highway control center to form traffic accident judgment model data;
the cloud server performs matching and updating on manual judgment and handling data of the accident according to the collision vibration electric signal and the collision sound electric signal which are newly uploaded by the communication module and the highway control center to form new traffic accident judgment model data;
the communication module downloads new traffic accident judgment model data and a processing instruction from the cloud server, and the processor module processes the newly received collision vibration electric signals and collision sound electric signals according to the new traffic accident judgment model data and the processing instruction.
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