CN210466749U

CN210466749U - Road maintenance operation autonomous anti-intrusion early warning system

Info

Publication number: CN210466749U
Application number: CN201920065428.2U
Authority: CN
Inventors: 朱贵强; 金龙; 朱志星; 李海生
Original assignee: Huaiyin Normal University
Current assignee: Jiangsu boweite Electronic Technology Co., Ltd
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2020-05-05
Anticipated expiration: 2029-01-16

Abstract

The utility model discloses an electromagnetic wave autonomous anti-intrusion early warning system for road maintenance operation site, which comprises an early warning host (1), an early warning auxiliary machine (2) and an early warning wearing machine (3); the early warning system is characterized in that an early warning host (1) is placed at the tail end of a maintenance or accident handling operation site, an early warning auxiliary machine (2) is placed at the accident or operation site, or the early warning auxiliary machine (2) is magnetically adsorbed on an automobile, and an early warning wearing machine (3) is worn on the body of an operator or accident handling personnel; the utility model belongs to road traffic safety field category adopts autonomic early warning mode for road traffic accident handles, emergency rescue, maintenance operation, safe operation early warning, effective protection site operation personnel safety.

Description

Road maintenance operation autonomous anti-intrusion early warning system

Technical Field

The utility model belongs to road traffic safety field category relates to early warning system, concretely relates to road maintenance operation autonomous prevents rushing into early warning system.

Background

The existing traffic accident treatment, emergency rescue and maintenance operation site anti-intrusion measures mainly comprise: an acoustic-optical warning system and a collision sensing type anti-intrusion system. According to the practical application situation, the fatal defects of passive early warning and insufficient early warning time generally exist.

1. Acoustoelectric warning system: the traffic accident warning device is mainly characterized in that an acousto-optic and electric warning device or a combined device thereof is arranged at the upstream of a traffic accident disposal, emergency rescue and maintenance operation site and used for warning vehicles passing through the upstream and preventing the vehicles from entering an operation area. The sound-light-electricity early warning plays an early warning role to a certain extent, but the early warning mode is passive, no pre-reserved early warning time exists, and avoidance measures cannot be taken in advance.

Collision sensing type intrusion prevention system: the collision early warning ring anti-intrusion system and the anti-collision road cone early warning anti-intrusion system are mainly provided, the principles of the collision early warning ring anti-intrusion system and the anti-collision road cone early warning anti-intrusion system are the same, namely, after a vehicle collides with a warning object provided with a collision sensor, the collision sensor starts acousto-optic-electric alarm. The two modes are used in traffic police departments and road emergency rescue and maintenance construction units; the application system comprises an early warning ring placed in an isolated operation area or a collision sensor and a wireless transmitter installed on a road cone, a plurality of transmitting points are needed during installation, a gateway router is placed in the operation area to process signal routes of the plurality of transmitters, and one or more wireless alarms are equipped to receive signals. When a vehicle breaks into the operation area, the sensor bumps into the road cone sensor, and a signal is immediately transmitted to the gateway router and redistributed to the alarm for alarming. From a use point of view, the system has the following problems and drawbacks: after the road cone is placed on the site, a light ring provided with a collision sensor is placed, the system is also required to detect, the router is required to process a plurality of alarm points and is required to be self-checked and debugged, and an operator needs to be placed on the site for a long time, so that the safety risk of the operator in the road cone placing process is increased, and the use is inconvenient; because the parts are more, the battery maintenance and the wireless transceiving debugging of the wireless transceiving module can not ensure the reliability of long-term work, and the maintenance is inconvenient. Compared with an acousto-optic-electric anti-intrusion system, the system is improved to a certain extent, but still does not fundamentally solve autonomous early warning and reserve enough early warning time; the system starts to emit signals after a vehicle collides with a road cone, and when the vehicle collides with the road cone and rushes into an operation area at a high speed, the system cannot give an alarm and early warn in time at all, and field personnel cannot avoid the vehicle at all.

Disclosure of Invention

The utility model aims at: the design is an autonomous anti-intrusion early warning system for road maintenance operation, which is provided with an anti-intrusion early warning system at the upstream of a traffic accident disposal site, emergency rescue site and maintenance operation site, adopts an autonomous early warning mode to effectively prevent intrusion into an operation area, is used for early warning of safety operations such as road traffic accident disposal, emergency rescue, maintenance construction and the like, overcomes the fatal defects of passive early warning and insufficient early warning time, can effectively early warn a vehicle driver in advance and send out early warning signals to site operation personnel, and ensures the safety of the operation personnel when sufficient avoidance is reserved for the site operation personnel.

The technical solution of the utility model is that: an anti-intrusion early warning system which is used for linkage early warning of an early warning host, an early warning auxiliary machine and an early warning wearing machine is established based on a millimeter wave radar detection technology; the method specifically comprises the steps that an early warning host is placed at the tail end of the upstream of a maintenance or accident disposal operation site, an early warning auxiliary machine (strongly magnetically adsorbed on a police car or a construction vehicle) is placed on the accident or operation site, and an early warning wearing machine is worn on a person in the accident disposal or operation site; when a vehicle drives into the upstream 200m range of the tail end of the lane where the operation site is located at a speed of not less than 80km/h, the early warning host computer is started, tracks and detects the vehicle and collects the information of the driven vehicle, and the system judges the danger degree of the vehicle possibly entering the operation site of the accident according to the driving track, the speed and the like of the vehicle; when the fact that the running vehicle possibly enters the operation or accident site by mistake and possibly threatens the personal safety of site operation personnel is judged, the early warning host immediately starts acousto-optic and electric alarms, warns the running vehicle to change the road in real time and pays attention to the safety; when a vehicle continues to drive towards a lane where an accident operation site is located and enters the area of 100m upstream of the tail end of the lane where the accident or operation site is located, and the early warning host judges that the driving vehicle can further threaten the safety of personnel on the operation site, the early warning host immediately sends early warning signals to the early warning auxiliary machine and the early warning wearing machine on the operation site, and at the moment, the early warning host, the early warning auxiliary machine and the early warning wearing machine simultaneously give an alarm to remind a driver of immediately taking effective safety measures in real time, the vehicle is decelerated and driven in a lane change way, and meanwhile field operation treating personnel are reminded of having the vehicle break-in, and the.

The early warning host is formed by connecting a millimeter wave radar, a radar signal processing circuit, a central main control circuit, a power amplifier circuit, an alarm horn, a flashing light, a wireless signal transmitting module, a switch button, a battery and a power supply management module in a circuit mode; the method comprises the following specific steps: the millimeter wave radar is used for detecting the information of vehicles running in a range of 200m away from the tail end of the upstream of a lane where an operation site is located in real time by using a long-distance 77GHz millimeter wave radar technology, and running in the upstream of the lane where the operation site is located at a speed of ≧ 80km/h or abnormal running such as S type; the radar signal processing circuit is used for processing information collected by the millimeter wave radar through the single chip microcomputer, and then the central main control circuit starts a host machine to alarm a horn and a flashing light through a power amplifier circuit; the central main control circuit is used for processing the signals sent by the radar signal processing circuit and then instructing the wireless signal transmitting module to send out early warning signals, and simultaneously starting a flashing light and an alarm horn of the early warning host to warn passing vehicles; the wireless signal transmitting module is used for sending early warning signals to the early warning auxiliary machine and the early warning wearing machine through the wireless transmitting module after processing according to signals sent by the radar signal processing circuit when a vehicle enters the range within 100m of the upstream of a lane where an operation site is located; the power amplification circuit is used for amplifying the power of sound signals for starting the alarm loudspeaker after the central main control circuit of the early warning host receives the early warning signals of the radar signal processing circuit; the battery is an 80ah lithium battery; the power management module has the functions of automatically turning on and off the power supply and displaying charging while alarming signals are on and off, so that the storage of electric quantity is known in real time, and the instant charging is reminded; the switch key controls a power switch.

The early warning auxiliary machine is formed by connecting a wireless signal receiving module, a central main control circuit, a power amplification circuit, an alarm horn, a flashing lamp, a battery and a power supply management module in a circuit mode; the method comprises the following specific steps: the wireless signal receiving module is used for detecting a vehicle in a range of less than or equal to 100m at the upstream of an operation site in real time by using a long-distance 77GHz millimeter wave radar technology through a millimeter wave radar of the early warning host computer, when the vehicle drives into the range of 100m from the tail end of the upstream of a lane where the operation site is located at a speed of more than or equal to 80km/h or abnormally drives in the range of 100m from the tail end of the upstream of the lane where the operation site is located, the vehicle is processed by a millimeter wave radar processing circuit, the information is transmitted to a signal through a wireless transmitting module of the early warning host computer in real time through a main control circuit, the signal is received through a wireless receiving module of the intelligent early warning auxiliary computer, and then the signal is processed by a central main; the central main control circuit is used for processing and starting a flashing light of the early warning auxiliary machine in real time when a wireless signal receiving module of the early warning auxiliary machine receives a signal from the early warning main machine, and simultaneously driving a horn to alarm through a power amplification circuit, so that personnel in an operation field can be effectively warned to pay attention to safety and avoid in time; the power amplification circuit is used for amplifying power for starting the movable alarm horn after the early warning auxiliary machine receives the early warning signal of the early warning host; the alarm horn is used for giving out sound alarm in real time on an operation site when the early warning auxiliary machine receives an early warning instruction of the early warning main machine and giving out avoidance early warning to operation personnel; the flashing light is used for sending out a flashing alarm in real time on an operation site when the early warning auxiliary machine receives an early warning instruction of the early warning main machine, and sending out an avoidance early warning to an operator; the battery is a 20ah lithium battery; the power management module has the management function of automatically switching on and off the power supply when the signal is on or off and the charging display function, so that the storage of electric quantity is known in real time, and the instant charging is reminded.

The early warning wearing machine is formed by connecting a wireless signal receiving module, a central main control circuit, a power amplification circuit, a warning buzzer, a flashing light, a battery and a power supply management module in a circuit mode; the method comprises the following specific steps: the wireless signal receiving module is used for detecting vehicles in a range of less than or equal to 100m at the upstream of an operation site in real time by using a long-distance 77GHz millimeter wave radar technology through a millimeter wave radar of the early warning host, when the vehicles drive into a range of 100m from the tail end of the upstream of a lane where the operation site is located at a speed of more than or equal to 80km/h or abnormally drive in a range of 100m from the tail end of the upstream of the lane where the operation site is located, the signals are processed through a millimeter wave radar processing circuit and are transmitted through a wireless transmitting module of the early warning host in real time through a main control circuit, the signals are received through a wireless receiving module of an intelligent early warning wearing machine, and then the signals are processed through a central main control circuit of the intelligent early warning auxiliary; the central main control circuit is used for processing and starting a flashing light of the early warning wearing machine in real time when the wireless signal receiving module of the early warning auxiliary machine receives a signal from the early warning main machine, and simultaneously driving a buzzer to alarm through a power amplification circuit, so that personnel in an operation site are effectively warned to pay attention to safety and avoid in time; the power amplification circuit is used for amplifying power of the warning buzzer for starting after the warning wearing machine receives the warning signal of the warning host; the alarm buzzer is used for giving out a sound alarm in real time on an operation site when the early warning wearing machine receives an early warning instruction of the early warning host, and giving out an avoidance early warning to an operator; the alarm lamp is used for giving out an explosion and flash alarm in real time on an operation site when the early warning wearing machine receives an early warning instruction of the early warning host machine, and giving out an avoidance early warning to an operator; the battery is a 1ah lithium battery; the power management module has the management function of automatically switching on and off the power supply when the signal is on or off and the charging display function, so that the storage of electric quantity is known in real time, and the instant charging is reminded.

The following description is made of the circuit operation principle of the intrusion prevention system:

the early warning host computer: the radar detection module detects the front vehicle information, the CAN bus transmission and signal processing module analyzes, analyzes and judges the signals received by the main control IC, and the acousto-optic alarm or alarm signal is transmitted to the lower auxiliary machine through the wireless module according to the processing result.

1. A power supply section: the power supply part (U8) consists of a large-capacity lithium battery (DC 12V) and a power supply processing unit; the VCC1 end of the battery has 3 branches, 1 branch is connected with the INPUT end of U8, 2 branches are connected with the VCC1 end of a power amplifier (U7), and 3 branches are connected with the VCC1 end of a flashing Light (LAMP); the ground wire (GND) is connected to the grounding end of the mainboard; the output end has two, is VCC and GND end respectively, connects the VCC and GND end of mainboard.

2. Millimeter wave radar probe: the radar probe (U1) is composed of a radar antenna matrix and a radar signal transceiving processing (DSP) part, except a power supply VCC and a ground wire, two branches of a radar signal right CAN _ H and a CAN _ L are respectively connected to the homonymous end of the CAN transceiver (U2).

3. Signal bus transmission processing: signals are transmitted, received, analyzed and transmitted by the U2 and the U3; u2 is responsible for transceiving, U3 is responsible for parsing; the TXD end of the U2 forms a branch which is connected to the RXDAN end of the U3, and the RXD end is connected to the TXDAN end of the U3; the resistor R1 has two branches, wherein the branch 1 is connected to the RS end, and the branch 2 is grounded; the CS end of U3 is connected to RC2 of U4, the SO end is connected to RC4, the SI end is connected to SO, the SCK end is connected to RC3, and the 4 lines transmit decoding signals to the master IC (U4); the processing time sequence signal of U3 is generated by CRYSTAL oscillator (CRYSTAL), two branches are formed at two ends of the CRYSTAL, and are respectively connected to XTAL1 and XTAL2 ends of U3 and capacitors C1 and C2; the other ends of the capacitors C1 and C2 are grounded.

4. A main control IC part: the master control IC is responsible for a PIC18F25K80 MCU; the key signal and the radar signal are received, analyzed and processed, and meanwhile, a driving indicator light, an acousto-optic alarm and a wireless transmitting signal are output; the user input selection switches SW1-SW3 are respectively provided with two branches, 1 branch is connected with the RA0 end, the RA1 end and the RA2 end of the MCU, and the other end is grounded; the user indicator light LED has two ends, wherein the end 1 is respectively connected with the resistor R, the other end is grounded, and the other end of the resistor R is connected with the RA3, RA4 and RA5 ends of the MCU; RX and TX terminals, TX and RX terminals of U5 (wireless transmitter), transmit transmission signals; the alarm is controlled by RC0 and is connected to the INPUT end of the alarm; the flash LAMP (LAMP) is controlled by an RC1 end and is connected to one end of a resistor 10K; the processing time sequence signal of U4 is generated by CRYSTAL oscillator (CRYSTAL), two branches are formed at two ends of the CRYSTAL, and are respectively connected to XTAL1 and XTAL2 ends of U4 and capacitors C3 and C4; the other ends of the capacitors C3 and C4 are grounded.

5. The wireless transmitting module: the anti-intrusion system needs to transmit an alarm signal to a construction site in an emergency, and the function is realized by a wireless module (U5). The U5 controls a signal end TX, and the RX is respectively connected with the RX end and the TX end of the MCU; the antenna end is externally connected, and the power VCC and the ground are connected with a unified wiring end.

6. Generation and playing of an alarm sound: the generation of alarm sound and the power amplification driving are completed by the U6; the power supply end is connected with a battery end VCC1, and the ground wires are uniformly grounded; two branches at the output end are connected to two ends of the horn; the control signal is connected to the INPUT terminal by RC0 of the MCU.

7. Flashing light alarm: the flashing light alarm is implemented by the U7 part; the LAMP consists of a flashing LAMP LAMP and a switch NPN; the control signal is from the RC1 end of the MCU to one end of the 10K resistor; one end of the flash lamp is connected with the VCC1 end of the battery, and the other end is connected with the end of the switch 1; the other end of the switch is grounded.

Early warning auxiliary engine: the auxiliary machine waits for receiving the wireless control signal of the main machine, and starts acousto-optic alarm after receiving the signal until receiving a stop signal; the wireless communication device comprises an antenna, a wireless receiving module, a master control IC, an alarm sounder, a flashing light and the like; the power module is responsible for managing batteries and voltage conversion and supplying power to each unit.

1. A power supply section: the power supply part (U1) consists of a lithium battery (DC 12V) and a power supply processing unit; the VCC1 end of the battery has 3 branches, 1 branch is connected with the IN end of U1, 2 branches are connected with the VCC1 end of a power amplifier (U4), and 3 branches are connected with the VCC1 end of a flashing Light (LAMP); the ground wire (GND) is connected to the grounding end of the mainboard; the output end has two, is VCC and GND end respectively, connects the VCC and GND end of mainboard.

2. A main control IC part: the main control IC (U3) is responsible for the PIC16F1824 MCU, completes the wireless signal reception, and simultaneously outputs and drives the flashing light and the alarm; the alarm is controlled by RA1 and is connected to the INPUT end of the alarm; the flash LAMP (LAMP) is controlled by the end RA0 and is connected to one end of a resistor 10K; the wireless control signal is terminated by the TX, RX end of U2 to the RX, TX end of the MCU, and receives the control signal.

3. A wireless receiving module: the wireless receiving of the alarm signal is realized by the U2 part; the U2 controls a signal end TX, and the RX is respectively connected with the RX end and the TX end of the MCU; the antenna end is externally connected, and the power VCC and the ground are connected with a unified wiring end.

4. Generation and playing of an alarm sound: the generation of alarm sound and the power amplification driving are completed by the U4; the power supply end is connected with a battery end VCC1, and the ground wires are uniformly grounded; two branches at the output end are connected to two ends of the horn; the control signal is connected to the INPUT terminal by the RA1 of the MCU.

5. Flashing light alarm: the flashing light alarm is implemented by the U5 part; the LAMP consists of a flashing LAMP LAMP and a switch NPN; the control signal is from the RA0 end of the MCU to one end of the 10K resistor; one end of the flash lamp is connected with the VCC1 end of the battery, and the other end is connected with the end of the switch 1; the other end of the switch is grounded.

The early warning belt wearing machine part: the wearing machine is a simple version of the auxiliary machine and works synchronously with the auxiliary machine; waiting for receiving a starting signal of the host, and then starting an audible and visual alarm until a stopping signal is received; the components are as follows: the system comprises an antenna, a wireless receiving module, a master control IC, a buzzer, an LED lamp and the like; the lithium battery directly supplies power to each unit.

1. A power supply section: the power supply part (U1) is provided with 3 branches from a VCC end of a lithium battery (DC3.7V), wherein 1 branch is connected with the VCC end of U1, 2 branches are connected with the VCC end of a wireless module, and 3 branches are connected with the VCC end of a buzzer; the Ground (GND) is connected to the ground of the motherboard.

2. A main control IC part: the master control IC (U3) is responsible for the PIC16F1824 MCU to complete the wireless signal receiving and processing and output and drive the LED lamp and the buzzer at the same time; the buzzer is controlled by RA1 and is connected to one end of the buzzer; the LED lamp is controlled by an RA0 end and is connected to one end of a resistor 10K; the wireless control signal is terminated by the TX, RX end of U2 to the RX, TX end of the MCU, and receives the control signal.

4. Generation and playing of an alarm sound: the generation of the alarm sound is completed by a BUZZER; one end of the battery is connected with a battery terminal VCC, and the other end of the battery is connected with an RA1 terminal of the MCU; the switch is implemented by the MCU.

5. Flashing the lamp to alarm: the flashing light alarm is carried out by the LED part; the LED lamp consists of an LED lamp and a current-limiting resistor R1; the control signal is from the RA0 end of the MCU to one end of the R1 resistor; one end of the LED lamp is connected with the resistor, and the other end of the LED lamp is grounded; the switch is implemented by the MCU.

The utility model has the advantages that:

1. the long-distance 77GHz millimeter wave radar detection technology, the modern wireless transmission technology and the acoustic-optical-electrical alarm technology are coordinated and integrated in the autonomous anti-intrusion system through application layer software and a single chip microcomputer control and master control circuit.

2. The utility model adopts the frequency hopping wireless communication technology for signal transmission between the early warning host, the early warning auxiliary machine and the early warning wearing machine, the frequency is 433MHz and 40 frequency bands, the password butt joint, the GFSK modulation, the RSSI electromagnetic field intensity detection; meanwhile, the sound alarms of the alarm horns of the early warning host and the early warning auxiliary adopt high-pitch alarms, and the volume is greater than 120DB sound level; the early warning main engine and the early warning auxiliary engine adopt high-brightness flashing lamps; the LED lamp of the early warning wearing machine flickers and vibrates to give an alarm at the same time, and the early warning wearing machine warns and reminds the operating personnel of avoiding and paying attention to safety in time.

3. The utility model provides a function constitutes completely, device low cost, the operation is reliable and stable, be convenient for make the cloth and prevent, full-automatic low-power consumption independently prevent the early warning system of rushing into, it has intelligent real-time detection and the on-the-spot upstream vehicle running state of analysis operation, send the early warning to vehicle and field operation personnel in advance in real time, effectively prevent secondary accident, the early warning time of solving current road traffic safety is not enough, the cloth is prevented for a long time, the reliability is poor, the cost is too high and use the not enough problem of maintaining inconvenience etc..

Drawings

FIG. 1 is a schematic diagram of the intrusion prevention early warning system of the present invention;

FIG. 2 is a schematic diagram of the operation of the early warning host of the present invention;

FIG. 3 is a working schematic diagram of the auxiliary pre-warning engine of the present invention;

FIG. 4 is a schematic diagram of the working machine of the early warning wearing machine of the present invention;

fig. 5 is a schematic circuit diagram of the early warning host of the present invention;

fig. 6 is a schematic circuit diagram of the auxiliary early warning device of the present invention;

fig. 7 is a schematic diagram of the circuit of the pre-warning wearing machine of the present invention.

Detailed Description

The technical solution of the present invention is further explained below with reference to the accompanying drawings, but the technical solution is not to be construed as being limited thereto.

As shown in fig. 1, the anti-intrusion early warning system includes an early warning host 1, an early warning auxiliary machine 2 and an early warning wearing machine 3; placing an early warning host 1 at the tail end of a lane where a maintenance or accident handling operation site is located, placing an early warning auxiliary machine 2 at the accident or operation site, or magnetically adsorbing the early warning auxiliary machine 2 on an automobile, and wearing an early warning wearing machine 3 on a worker at the operation or accident handling site; when a vehicle drives into the range within 200m of the upstream of the tail end of the operation field at the speed of not less than 80km/h or in an abnormal state, a millimeter wave radar of the early warning host detects the vehicle on the upstream of the lane where the tail end of the accident operation field is located and collects vehicle driving information, the vehicle driving information is processed by a millimeter wave radar processing circuit, and when the early warning host judges that the driving vehicle possibly mistakenly enters the operation area or possibly forms personal safety threat to personnel on the accident operation field, the early warning host starts acousto-optic-electric alarm to warn the driving vehicle to change the lane and pay attention to safety; when the vehicle continues to drive towards the tail end of the upstream of the lane where the accident site is located and enters the range of 100m of the upstream of the lane where the accident site or the tail end of the operation site is located, and the intelligent early warning host judges that the driving vehicle possibly further threatens the safety of personnel on the operation site, early warning signals are immediately sent to the early warning auxiliary machine and the early warning wearing machine on the operation site, and at the moment, the early warning host, the early warning auxiliary machine and the early warning wearing machine simultaneously give an alarm, so that a driver is warned to immediately take effective safety measures (speed reduction or lane change driving), and meanwhile, field operation disposal personnel are warned to immediately avoid, pay attention.

As shown in fig. 2, the early warning host 1 is formed by connecting a millimeter wave radar 1.1, a radar signal processing circuit 1.2, a central main control circuit 1.3, a power amplifier circuit 1.4, an alarm horn 1.5, a flashing light 1.6, a wireless signal transmitting module 1.7, a switch key 1.8, a battery 1.9 and a power management module 1.10 in a circuit mode; the method comprises the following specific steps: the millimeter wave radar is used for detecting vehicles within a range of 200m at the upstream end of a distance measuring operation site in real time by using a long-distance 77GHz millimeter wave radar technology, and the vehicles run on the upstream of a lane where the operation site is located at a speed of not less than 80km/h or run abnormally by an S type and the like; the radar signal processing circuit is used for processing information collected by the millimeter wave radar through the single chip microcomputer, and then the central main control circuit starts a host machine to alarm a horn and a flashing light through a power amplifier circuit; the central main control circuit is used for processing the signals sent by the radar signal processing circuit and then instructing the wireless signal transmitting module to send out early warning signals, and simultaneously starting a flashing light and an alarm horn of the early warning host to warn passing vehicles; the wireless signal transmitting module is used for sending early warning signals to the early warning auxiliary machine and the early warning wearing machine through the wireless transmitting module after processing according to signals given by the radar signal processing circuit when a vehicle enters the range of 100m from the upstream end of the lane where the operation site is located; the power amplification circuit is used for amplifying the power of sound signals for starting the alarm loudspeaker after the central main control circuit of the early warning host receives the early warning signals of the radar signal processing circuit; the battery is an 80ah lithium battery; the power management module has the functions of automatically turning on and off the power supply and displaying charging while alarming signals are on and off, so that the storage of electric quantity is known in real time, and the instant charging is reminded; the switch key controls a power switch.

As shown in fig. 3, the early warning auxiliary machine 2 is formed by connecting a wireless signal receiving module 2.1, a central main control circuit 2.2, a power amplifier circuit 2.3, an alarm horn 2.4, a flashing light 2.5, a battery 2.6 and a power supply management module 2.7 in a circuit mode; the method comprises the following specific steps: the wireless signal receiving module is used for detecting that a vehicle breaks into a range which is less than or equal to 100m from the upstream of an operation site and has a vehicle speed which is greater than or equal to 80km/h by using a millimeter wave radar of the early warning host in real time by using a long-distance 77GHz millimeter wave radar technology, or when abnormal driving conditions exist in the range which is 100m from the upstream of a lane where the operation site is located, a wireless transmitting module of the intelligent early warning host transmits wireless early warning signals, and the wireless early warning signals are received by a wireless receiving module of the early warning auxiliary machine; the central main control circuit is used for processing and starting a flashing light of the early warning auxiliary machine in real time when a wireless signal receiving module of the early warning auxiliary machine receives a signal from the early warning main machine, and simultaneously driving a horn to alarm through a power amplification circuit, so that personnel in an operation field can be effectively warned to pay attention to safety and avoid in time; the power amplification circuit is used for amplifying power for starting the movable alarm horn after the early warning auxiliary machine receives the early warning signal of the early warning host; the alarm horn is used for giving out sound alarm in real time on an operation site when the early warning auxiliary machine receives an early warning instruction of the early warning main machine and giving out avoidance early warning to operation personnel; the flashing light is used for sending out a flashing alarm in real time on an operation site when the early warning auxiliary machine receives an early warning instruction of the early warning main machine, and sending out an avoidance early warning to an operator; the battery is a 20ah lithium battery; the power management module has the management function of automatically switching on and off the power supply when the signal is on or off and the charging display function, so that the storage of electric quantity is known in real time, and the instant charging is reminded.

As shown in fig. 4, the early warning wearing machine 3 is formed by connecting a wireless receiving module 3.1, a central main control circuit 3.2, a buzzer 3.3, a flashing light 3.4, a battery 3.5 and a power management module 3.6 in a circuit mode; the method comprises the following specific steps: the wireless signal receiving module is used for receiving the early warning signal in real time when the wireless signal transmitting module of the early warning host transmits the wireless early warning signal; the central main control circuit is used for processing and starting a flashing light and a buzzer in real time when the early warning wearing machine receives an early warning signal of the early warning host machine, so as to warn personnel on the operation site; the wireless receiving module is used for receiving signals of the wireless transmitting module of the early warning host; the buzzer sends out early warning to field operators when the wireless signal receiving module of the early warning wearing machine receives the early warning signal from the wireless signal shooting module of the early warning host; the flashing light means that when the wireless signal receiving module of the early warning wearing machine receives an early warning signal from the wireless signal shooting module of the early warning host, the flashing light gives an early warning to field operators; the battery is a 1ah lithium battery; the power management module means that the early warning wearing machine has the management function of automatically switching on and off the power supply when the signal is on or off and the charging display function, so that the power storage is known in real time, and the instant charging is reminded.

The following description, in conjunction with the schematic diagram of the circuit, is as follows:

as shown in fig. 5, a schematic circuit diagram of the early warning host; the host computer is used for detecting the information of the front vehicle by the radar detection module, analyzing and judging the received signal of the main control IC through the CAN bus transmission and signal processing module, and determining to enable audible and visual alarm or an alarm signal to be transmitted to the auxiliary machine below through the wireless module according to the processing result.

1. A power supply section: the power supply part (U8) consists of a large-capacity lithium battery (DC 12V) and a power supply processing unit; the VCC1 end of the battery has 3 branches, 1 branch is connected with the INPUT end of U8, 2 branches are connected with the VCC1 end of a power amplifier (U7), and 3 branches are connected with the VCC1 end of a flashing Light (LAMP). The ground wire (GND) is connected to the grounding end of the mainboard; the output end has two, is VCC and GND end respectively, connects the VCC and GND end of mainboard.

4. A main control IC part: the master control IC is responsible for a PIC18F25K80 MCU to complete the receiving, analyzing and processing of key signals and radar signals and output driving indicator lamps, acousto-optic alarms and wireless transmitting signals; the user input selection switches SW1-SW3 are respectively provided with two branches, 1 branch is connected with the RA0 end, the RA1 end and the RA2 end of the MCU, and the other end is grounded; the user indicator light LED has two ends, wherein the end 1 is respectively connected with the resistor R, the other end is grounded, and the other end of the resistor R is connected with the RA3, RA4 and RA5 ends of the MCU; RX and TX terminals, TX and RX terminals of U5 (wireless transmitter), transmit transmission signals; the alarm is controlled by RC0 and is connected to the INPUT end of the alarm; the flash LAMP (LAMP) is controlled by an RC1 end and is connected to one end of a resistor 10K; the processing time sequence signal of U4 is generated by CRYSTAL oscillator (CRYSTAL), two branches are formed at two ends of the CRYSTAL, and are respectively connected to XTAL1 and XTAL2 ends of U4 and capacitors C3 and C4; the other ends of the capacitors C3 and C4 are grounded.

5. The wireless transmitting module: the anti-intrusion system needs to transmit an alarm signal to a construction site in an emergency, and the function is realized by a wireless module (U5); the U5 controls a signal end TX, and the RX is respectively connected with the RX end and the TX end of the MCU; the antenna end is externally connected, and the power VCC and the ground are connected with a unified wiring end.

6. Generating and playing an alarm sound; the generation of alarm sound and the power amplification driving are completed by the U6; the power supply end is connected with a battery end VCC1, and the ground wires are uniformly grounded; two branches at the output end are connected to two ends of the horn; the control signal is connected to the INPUT terminal by RC0 of the MCU.

As shown in fig. 6, a schematic diagram of the early warning auxiliary machine circuit; the auxiliary machine waits for receiving the wireless control q signal of the main machine, and starts acousto-optic alarm after receiving the signal until receiving a stop signal; the wireless communication device comprises an antenna, a wireless receiving module, a master control IC, an alarm sounder, a flashing light and the like.

As shown in fig. 7, the pre-warning wearing machine circuit schematic diagram; the wearing machine is a simple version of the auxiliary machine and works synchronously with the auxiliary machine; waiting for receiving a starting signal of the host, and then starting an audible and visual alarm until a stopping signal is received; the antenna is composed of an antenna, a wireless receiving module, a master control IC, a buzzer, an LED lamp and the like.

Claims

1. The road maintenance operation autonomous anti-intrusion early warning system comprises an early warning host, an early warning auxiliary machine and an early warning wearing machine; placing an early warning host at the tail end of a lane where a maintenance or accident handling operation site is located, and placing an early warning auxiliary machine at the accident or operation site, or magnetically adsorbing the early warning auxiliary machine on an automobile; wearing an early warning wearing machine on the body of a worker on the site of operation or an accident; the early warning host machine formed by connecting the circuit modes comprises a power supply part, a millimeter wave radar probe, a signal bus transmission processing part, a main control IC part, a wireless transmitting module, an alarm sound generating and playing part and an explosion flash lamp alarming part; the early warning auxiliary machine formed by connecting the auxiliary machine in a circuit mode comprises a power supply part, a main control IC part, a wireless receiving module, an alarm sound generating and playing part and a flashing light alarm part; the early warning wearing machine formed by connecting the electric circuits comprises a power supply part, a main control IC part, a wireless receiving module, an alarm sound generating and playing part and a flashing light alarm part;

the method is characterized in that: the specific circuit connection of the early warning host computer is as follows:

a power supply section: the power supply part U8 consists of a large-capacity lithium battery DC12V and a power supply processing unit; the VCC1 end of the battery has 3 branches, 1 branch is connected with the INPUT end of U8, 2 branches are connected with the VCC1 end of power amplifier U7, and 3 branches are connected with the VCC1 end of the flash LAMP LAMP; the ground wire GND is connected to the grounding end of the mainboard; the two output ends are respectively a VCC end and a GND end and are connected to the VCC end and the GND end of the mainboard;

millimeter wave radar probe: the radar probe (U1) is composed of a radar antenna matrix and a radar signal transceiving DSP part, except a power supply VCC and a ground wire, two branches of a radar signal right CAN _ H and a CAN _ L are respectively connected to the homonymous end of a CAN transceiver U2;

signal bus transmission processing: signals are transmitted, received, analyzed and transmitted by the U2 and the U3; u2 is responsible for transceiving, U3 is responsible for parsing; the TXD end of the U2 forms a branch which is connected to the RXDAN end of the U3, and the RXD end is connected to the TXDAN end of the U3; the resistor R1 has two branches, wherein the branch 1 is connected to the RS end, and the branch 2 is grounded; the CS end of U3 is connected to RC2 of U4, the SO end is connected to RC4, the SI end is connected to SO, the SCK end is connected to RC3, and the 4 lines transmit decoding signals to the master IC U4; the processing time sequence signal of U3 is generated by CRYSTAL oscillator CRYSTAL, two ends of which form two branches respectively, and the two branches are respectively connected to XTAL1 and XTAL2 ends of U3 and capacitors C1 and C2. and C1, and the other two ends of C2 are grounded;

a main control IC part: the master control IC is responsible for a PIC18F25K80 MCU to complete the receiving, analyzing and processing of key signals and radar signals and output driving indicator lamps, acousto-optic alarms and wireless transmitting signals; the user input selection switches SW1-SW3 are respectively provided with two branches, 1 branch is connected with the RA0 end, the RA1 end and the RA2 end of the MCU, and the other end is grounded; the user indicator light LED has two ends, wherein the end 1 is respectively connected with the resistor R, the other end is grounded, and the other end of the resistor R is connected with the RA3, RA4 and RA5 ends of the MCU; RX and TX termination is carried out on the TX and RX ends of the U5 wireless transmitter to transmit a transmitting signal; the alarm is controlled by RC0 and is connected to the INPUT end of the alarm; the flash LAMP LAMP is controlled by an RC1 end and is connected to one end of a resistor 10K; the processing time sequence signal of U4 is generated by CRYSTAL oscillator CRYSTAL, two ends of which form two branches respectively, and the two branches are respectively connected to XTAL1 and XTAL2 ends of U4 and capacitors C3 and C4; the other two ends of the capacitors C3 and C4 are grounded;

the wireless transmitting module: the anti-intrusion system needs to transmit an alarm signal to a construction site in an emergency, and the function is realized by a wireless module U5; the U5 controls a signal end TX, and the RX is respectively connected with the RX end and the TX end of the MCU; the antenna end is externally connected, and the power supply VCC and the ground are connected with a uniform wiring end;

generation and playing of an alarm sound: the generation of alarm sound and the power amplification driving are completed by the U6; the power supply end is connected with a battery end VCC1, and the ground wires are uniformly grounded; two branches at the output end are connected to two ends of the horn; the control signal is connected to the INPUT end by the RC0 of the MCU;

flashing light alarm: the flashing light alarm is implemented by the U7 part; the LAMP consists of a flashing LAMP LAMP and a switch NPN; the control signal is from the RC1 end of the MCU to one end of the 10K resistor; one end of the flash lamp is connected with the VCC1 end of the battery, and the other end is connected with the end of the switch 1; the other end of the switch is grounded

The specific circuit connection of the early warning auxiliary machine is as follows:

a power supply section: the power supply part U1 consists of a lithium battery DC12V and a power supply processing unit; the VCC1 end of the battery has 3 branches, 1 branch is connected with the IN end of U1, 2 branch is connected with the VCC1 end of power amplifier U4, and 3 branch is connected with the VCC1 end of the flash LAMP LAMP; the ground wire GND is connected to the grounding end of the mainboard; the two output ends are respectively a VCC end and a GND end and are connected to the VCC end and the GND end of the mainboard;

a main control IC part: the master control IC U3 PIC16F1824 MCU is responsible for completing wireless signal receiving and outputting driving flashing lights and an alarm; the alarm is controlled by RA1 and is connected to the INPUT end of the alarm; the flash LAMP LAMP is controlled by an RA0 end and is connected to one end of a resistor 10K; the wireless control signal is connected to the RX end and the TX end of the MCU through the TX and RX ends of the U2, and the wireless control signal receives the control signal;

a wireless receiving module: the wireless receiving of the alarm signal is realized by the U2 part; the U2 controls a signal end TX, and the RX is respectively connected with the RX end and the TX end of the MCU; the antenna end is externally connected, and the power supply VCC and the ground are connected with a uniform wiring end;

generation and playing of an alarm sound: the generation of alarm sound and the power amplification driving are completed by the U4; the power supply end is connected with a battery end VCC1, and the ground wires are uniformly grounded; two branches at the output end are connected to two ends of the horn;

the control signal is connected to the INPUT end by the RA1 of the MCU;

flashing light alarm: the flashing light alarm is implemented by the U5 part; the LAMP consists of a flashing LAMP LAMP and a switch NPN; the control signal is from the RA0 end of the MCU to one end of the 10K resistor; one end of the flash lamp is connected with the VCC1 end of the battery, and the other end is connected with the end of the switch 1; the other end of the switch is grounded;

the early warning wearing machine is characterized in that the specific circuit connection is as follows:

a power supply section: the power supply part U1 has 3 branches from a lithium battery DC3.7V VCC end, 1 branch is connected with the VCC end of U1, 2 branch is connected with the VCC end of the wireless module, and 3 branch is connected with the VCC end of the buzzer; the ground wire GND is connected to the grounding end of the mainboard;

a main control IC part: the master control IC U3 PIC16F1824 MCU is responsible for completing wireless signal receiving and processing, and outputting and driving the LED lamp and the buzzer at the same time; the buzzer is controlled by RA1 and is connected to one end of the buzzer; the LED lamp is controlled by an RA0 end and is connected to one end of a resistor 10K; the wireless control signal is connected to the RX end and the TX end of the MCU through the TX and RX ends of the U2, and the wireless control signal receives the control signal;

generation and playing of an alarm sound: the generation of the alarm sound is completed by a BUZZER; one end of the battery is connected with a battery terminal VCC, and the other end of the battery is connected with an RA1 terminal of the MCU; the switch is realized by the MCU;

flashing the lamp to alarm: the flashing light alarm is carried out by the LED part; the LED lamp consists of an LED lamp and a current-limiting resistor R1; the control signal is from the RA0 end of the MCU to one end of the R1 resistor; one end of the LED lamp is connected with the resistor, and the other end of the LED lamp is grounded; the switch is implemented by the MCU.