CN107128249B - The mobile warning sign of radio controllable - Google Patents

The mobile warning sign of radio controllable Download PDF

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Publication number
CN107128249B
CN107128249B CN201710358486.XA CN201710358486A CN107128249B CN 107128249 B CN107128249 B CN 107128249B CN 201710358486 A CN201710358486 A CN 201710358486A CN 107128249 B CN107128249 B CN 107128249B
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CN
China
Prior art keywords
motor
chip microcontroller
power
module
steering
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Application number
CN201710358486.XA
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Chinese (zh)
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CN107128249A (en
Inventor
陈建军
辜永红
陈晖�
李东琦
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重庆大学
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Priority to CN201710358486.XA priority Critical patent/CN107128249B/en
Publication of CN107128249A publication Critical patent/CN107128249A/en
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Publication of CN107128249B publication Critical patent/CN107128249B/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q7/00Arrangement or adaptation of portable emergency signal devices on vehicles
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/16Signs formed of or incorporating reflecting elements or surfaces, e.g. warning signs having triangular or other geometrical shape

Abstract

The invention discloses a kind of mobile warning sign of radio controllable, including trolley, warning mark is provided on trolley;Trolley includes the vehicle frame of a shape, steering motor is fixedly installed in the front of vehicle frame, steering motor is connected with a deflecting roller by steering mechanism, the rear portion of vehicle frame is equipped with shaft, the both ends of shaft are installed with power wheel, power motor is further fixedly arranged in vehicle frame, power motor drives shaft rotation by deceleration mechanism;Steering motor, power motor are all connected to control circuit, and the control circuit is provided with bluetooth module or WIFI module.The present invention provides a kind of mobile warning signs of radio controllable to avoid the occurrence of traffic accident of knocking into the back by handheld device, that is, controllable mobile warning sign.

Description

The mobile warning sign of radio controllable

Technical field

The present invention relates to a kind of accessories that automobile uses, and in particular to a kind of mobile warning sign of radio controllable.

Background technique

As people's living standards have been gradually improved, automobile has become the most important vehicles in people's life, purchase The people for buying automobile is also more and more, however the frequency that traffic accident occurs also is being continuously improved, and especially rear-ended car accident accounts for According to sizable ratio, and often result in the great number of casualties and economic loss.The reason of most of rear-end collision be by After accident or failure occur for front truck, warning cannot be made rapidly and cause the vehicle at rear directly knock into the back cause it is more, bigger Traffic accident, or since accident vehicle caution device differentiability is poor, with accident point at a distance of close, when rear car is without enough reactions Between, distance and cause more major break down.Therefore, traffic department provides, alarming device must be used to rear after driving is broken down The vehicle of side is warned, and the distance between alarming device and fault car are 100 meters to 250 meters.Existing alarming device is logical Often to be placed on the spare automotive alarm board of automobile trunk, usually there are retroreflective regions on the warning sign, event occurs in automobile Warning sign is placed on to the rear of automobile when barrier, for remind it is subsequent come vehicle.Automobile breaks down when such as driving a vehicle, and driver needs Automotive alarm board is taken out to boot after getting off, then walks to holding vehicles warning sign at safe distance, it is subsequent to warn Vehicle.Then, driver will also withdraw the automotive alarm board.Due to the inertia of people, and live emergency risks situation people are usual Holding vehicles warning sign will not be removed according to the rules, even if according to regulation holding vehicles warning sign, and standing time is also very long, puts It is slow to set speed.In addition, by driver on foot on highway walking and holding vehicles warning sign, especially night, rain, mist, The unclear bad weather of snow visual isopter descends, it is possible to can lead to bigger traffic accident.

Summary of the invention

In view of at least one defect of the prior art, the object of the present invention is to provide a kind of mobile warnings of radio controllable Board avoids the occurrence of traffic accident of knocking into the back by handheld device, that is, controllable mobile warning sign.

In order to achieve the above object, the present invention adopts the following technical scheme: a kind of mobile warning sign of radio controllable, is closed Key is: including trolley, being provided with warning mark on trolley;

Trolley includes the vehicle frame of a shape, and steering motor is fixedly installed in the front of vehicle frame, and steering motor is connected by steering mechanism It is connected to a deflecting roller, the rear portion of vehicle frame is equipped with shaft, and the both ends of shaft are installed with power wheel, are further fixedly arranged in vehicle frame Power motor, power motor drive shaft rotation by deceleration mechanism;

Steering motor, power motor are all connected to control circuit, and the control circuit is provided with bluetooth module or WIFI mould Block.

The present invention, when the generation vehicle failure on highway, can be passed through by designing a kind of controllable mobile warning sign The APP control trolley being arranged in mobile phone proceeds to distance to a declared goal, and mobile phone is connected by bluetooth module or WIFI module and small vehicle radio It connects, when so as to avoid there is traffic accident, the secondary rear-end collision generated and artificially placing warning sign, the interior setting of mobile phone APP can control trolley discharge, advance automatically, retreating, turning, bright warning lamp work, so as to avoid generating secondary friendship Interpreter's event.

The structure of above-mentioned trolley is simple, it is only necessary to which the vehicle frame of door shape, easy to process, a steering is only arranged in the front of trolley Wheel, keeps the steering of trolley more convenient, and steering mechanism is simpler flexibly.

Often there is bend on highway, different turning road surfaces can be suitble to by the way that deflecting roller is arranged.

Control circuit receives the instruction of mobile phone by bluetooth module, then is turned to by steering motor by control deflecting roller.

Control circuit receives the instruction of mobile phone by bluetooth module, drives power wheel to rotate forward by power motor, inverts, stops Only, so as to controlling the advance, retrogressing and stopping of mobile warning sign.

The steering motor is stepper motor, and the steering motor is provided with electric machine support, and steering motor passes through motor branch Frame is mounted on the preceding bottom surface of vehicle frame, and the steering mechanism includes the bogie of a shape, the output shaft of steering motor downwards and with Bogie upper center is connected, and two lower ends of bogie are connected by circular shaft, and the rotating middle part of circular shaft is arranged the deflecting roller.

The steering motor is stepper motor, by making stepper motor rotate different angles, it can pass through bogie The different angle of steered wheel rotation is controlled, such control structure is simple.

The deceleration mechanism is belt pulley deceleration mechanism, or is gear reduction;The power motor is also stepping Motor.

Power motor drives power wheel by belt pulley deceleration mechanism or gear reduction, can reduce power motor Power.

The control circuit includes single-chip microcontroller, and single-chip microcontroller is provided with bluetooth side group, and single-chip microcontroller is blue by the connection of bluetooth side group Tooth module;

The single-chip microcontroller is provided with the first control terminal group, and single-chip microcontroller is connected with the first stepper motor by the first control terminal group Module, the first stepping motor module are provided with the first driving end group, and stepper motor module connects power by the first driving end group Motor;

The single-chip microcontroller is provided with the second control terminal group, and single-chip microcontroller is connected with second stepper motor by the second control terminal group Module, second stepper motor module are provided with the second driving end group, and second stepper motor module passes through the second driving end group connection Steering motor.

Above-mentioned controling circuit structure is simple, and when needing to advance, single-chip microcontroller controls power by the first stepping motor module Motor rotates forward, and when needing to retreat, single-chip microcontroller controls power motor reversion by the first stepping motor module.

Since power motor is stepper motor, the pulse of the first stepping motor drive module is sent to by control single chip computer Quantity can control the distance of trolley forward or backward.Such as conventional 150 meters, 200 meters.

Also the energization phase sequence that can control power motor realizes that positive and negative rotation and stopping to power motor control.

When needing, single-chip microcontroller controls steering motor by second stepper motor module and rotates forward certain angle, when need When turning right, single-chip microcontroller controls steering motor by second stepper motor module and inverts certain angle.

The warning mark is cone cylinder.Cone surface is provided with the reflective strip of annular.

Cone cylinder structure is simple, and four sides can be reflective, can also be with components such as placing battery and control circuits in cone cylinder.

Battery pack is provided in the cone cylinder, the control circuit is also disposed in cone cylinder, and battery pack is control circuit confession Electricity.

Above-mentioned setting structure is simple, also can simplify the structure of trolley.

Warning lamp is provided at the top of the cone cylinder, the single-chip microcontroller is provided with instruction control terminal, and single-chip microcontroller passes through instruction Control terminal connects the control terminal of first switch tube, and first switch tube controls warning lamp power on/off.

Only pass through reflecting sign in rain and fog weather and carry out reflective, to its poor effect of the automobile of reflector lamp is not opened, passes through Warning lamp is set, warning effect can be improved.

Electromagnetism hook is additionally provided at the top of the warning lamp, the electromagnetism hook includes the lock body of U-shaped, the lower end of lock body It is connected with the top of warning lamp, bolt is equipped in the first upper end of lock body, the first upper end that lock body is stretched out in the front end of bolt is stretched Entering in the pin hole that the second upper end is correspondingly arranged, the rear end of bolt is provided with armature, it is relatively set with electromagnet with armature, bolt Rear end is also cased with reset spring, and one end of reset spring is connected with the first upper end, and the other end of reset spring is connected with armature;

The single-chip microcontroller is provided with Electromagnetic Control end, and single-chip microcontroller connects the control of second switch by Electromagnetic Control end End, second switch control magnet switching electricity.

The cross section of the bolt is rectangle, and the cross section of rectangle is adapted with the rectangle hanging hole that automobile rear is arranged, can To prevent warning sign from swaying.

Warning sign can be hung on automobile tail by above-mentioned electromagnetism hook, when disengagement is required, control electromagnet by single-chip microcontroller It is powered, electromagnet extracts bolt from the pin hole that the second upper end is correspondingly arranged, and warning sign can be discharged into ground, then pass through Control trolley proceeds to designated position.

The deflecting roller, power wheel are rubber wheel.

Rubber wheel has a kind of cushioning effect when trolley is discharged.

The deflecting roller, power wheel wheel face be provided with anti-skid bulge.

Anti-skid bulge prevents deflecting roller, power wheel to be trapped in mud pit, cooperates stepper motor, is more suitable for stopping at inclined road On face.

The single-chip microcontroller is also connected with gsm module, GPS module, and single-chip microcontroller is connected with server by gsm module, described Single-chip microcontroller is also connected with speech recognition module.

Real-time road system is provided in the server, single-chip microcontroller obtains location information by GPS module, by stating clothes The real-time road system being engaged in device issues traffic information.

When mobile phone has a power failure, it is necessary to get off at warning sign and go to withdraw warning sign, this is abnormally dangerous, by the way that language is arranged Sound identification module can issue the phonetic order of " warning sign is returned " to warning sign and control after single-chip microcontroller obtains phonetic order Warning sign is along backtracking.

Remarkable result: the present invention provides a kind of mobile warning signs of radio controllable, pass through handheld device, that is, controllable shifting Dynamic warning sign, avoids the occurrence of traffic accident of knocking into the back.

Detailed description of the invention

Fig. 1 is structure chart of the invention;

Fig. 2 is the A-A cross-sectional view of Fig. 1;

Fig. 3 is the B-B cross-sectional view of Fig. 1;

Fig. 4 is circuit module figure of the invention;

Fig. 5 is the circuit diagram of single-chip microcontroller;

Fig. 6 is the circuit diagram of bluetooth module;

Fig. 7 is the circuit diagram of the first stepping motor module;

Fig. 8 is the circuit diagram of second stepper motor module.

Specific embodiment

Invention is further described in detail in the following with reference to the drawings and specific embodiments.

As Figure 1-Figure 8, the mobile warning sign of a kind of radio controllable, including trolley 1 are provided with warning-sign on trolley 1 Will 2;

Trolley 1 includes the vehicle frame 11 of door shape, and steering motor 12 is fixedly installed in the front of vehicle frame 11, and steering motor 12 is by turning It is connected with a deflecting roller 14 to mechanism 13, the rear portion of vehicle frame 11 is equipped with shaft 15, and the both ends of shaft 15 are installed with power wheel 16, power motor 17 is further fixedly arranged in vehicle frame 11, power motor 17 drives shaft 15 to rotate by deceleration mechanism 18;

Steering motor 12, power motor 17 are all connected to control circuit, the control circuit be provided with bluetooth module or WIFI module.

The present invention, when the generation vehicle failure on highway, can be passed through by designing a kind of controllable mobile warning sign The APP control trolley 1 being arranged in mobile phone proceeds to distance to a declared goal, and mobile phone is connected by bluetooth module or WIFI module and small vehicle radio It connects, when so as to avoid there is traffic accident, the secondary rear-end collision generated and artificially placing warning sign, the interior setting of mobile phone APP can control trolley 1 automatically release, advance, retreat, turning, bright warning lamp work, so as to avoid generating secondary friendship Interpreter's event.

The structure of above-mentioned trolley 1 is simple, it is only necessary to which the vehicle frame 11 of door shape, easy to process, the front of trolley 1 is only arranged one Deflecting roller 14 keeps the steering of trolley 1 more convenient, and steering mechanism 13 is simpler flexibly.

Often there is bend on highway, different turning road surfaces can be suitble to by the way that deflecting roller 14 is arranged.

Control circuit receives the instruction of mobile phone by bluetooth module, then passes through 14 turns of deflecting roller of control by steering motor 12 To.

Control circuit receives the instruction of mobile phone by bluetooth module, drives power wheel 16 to rotate forward by power motor 17, is anti- Turn, stop, so as to control the advance, retrogressing and stopping of mobile warning sign.

The steering motor 12 is stepper motor, and the steering motor 12 is provided with electric machine support 19, and steering motor 12 is logical It crosses electric machine support 19 to be mounted on the preceding bottom surface of vehicle frame 11, the steering mechanism 13 includes the bogie 131 of door shape, steering motor 13 output shaft is connected downwards and with 131 upper center of bogie, and two lower ends of bogie 131 are connected by circular shaft 132, circle The rotating middle part of axis 132 is arranged the deflecting roller 14.

The steering motor 12 is stepper motor, by making stepper motor rotate different angles, it can pass through steering Frame 131 controls deflecting roller 14 and rotates different angles, and such control structure is simple.

The deceleration mechanism 18 is belt pulley deceleration mechanism, or is gear reduction;The power motor 17 be also Stepper motor.

Power motor 17 drives power wheel 16 by belt pulley deceleration mechanism or gear reduction, can reduce power electric The power of machine 17.

The control circuit includes single-chip microcontroller, and single-chip microcontroller is provided with bluetooth side group, and single-chip microcontroller is blue by the connection of bluetooth side group Tooth module;

The single-chip microcontroller is provided with the first control terminal group, and single-chip microcontroller is connected with the first stepper motor by the first control terminal group Module, the first stepping motor module are provided with the first driving end group, and stepper motor module connects power by the first driving end group Motor 17;

The single-chip microcontroller is provided with the second control terminal group, and single-chip microcontroller is connected with second stepper motor by the second control terminal group Module, second stepper motor module are provided with the second driving end group, and second stepper motor module passes through the second driving end group connection Steering motor 12.

Above-mentioned controling circuit structure is simple, and when needing to advance, single-chip microcontroller controls power by the first stepping motor module Motor 17 rotates forward, and when needing to retreat, single-chip microcontroller controls power motor 17 by the first stepping motor module and inverts.

Since power motor 17 is stepper motor, the arteries and veins of the first stepping motor drive module is sent to by control single chip computer Rushing quantity can control the distance of trolley forward or backward.Such as conventional 150 meters, 200 meters.

Also the energization phase sequence that can control power motor 17 realizes that positive and negative rotation and stopping to power motor 17 control.

When needing, single-chip microcontroller controls steering motor 12 by second stepper motor module and rotates forward certain angle, when When needing to turn right, single-chip microcontroller controls steering motor 12 by second stepper motor module and inverts certain angle.

The warning mark 2 is cone cylinder.Cone surface is provided with the reflective strip of annular.

Cone cylinder structure is simple, and four sides can be reflective, can also be with components such as placing battery and control circuits in cone cylinder.

Battery pack 3 is provided in the cone cylinder, the control circuit is also disposed in cone cylinder, and battery pack 3 is control circuit Power supply.

Above-mentioned setting structure is simple, also can simplify the structure of trolley 1.

Warning lamp 4 is provided at the top of the cone cylinder, the single-chip microcontroller is provided with instruction control terminal, and single-chip microcontroller passes through instruction Control terminal connects the control terminal of first switch tube, and first switch tube controls 4 power on/off of warning lamp.

Only pass through reflecting sign in rain and fog weather and carry out reflective, to its poor effect of the automobile of reflector lamp is not opened, passes through Warning lamp 4 is set, warning effect can be improved.

The top of the warning lamp 4 is additionally provided with electromagnetism hook 5, and the electromagnetism hook 5 includes the lock body 51 of U-shaped, lock body 51 lower end and the top of warning lamp 4 are connected, and are equipped with bolt 52 in the first upper end 51a of lock body 51, the front end of bolt 52 is stretched The first upper end 51a of lock body 51 is protruded into the pin hole that the second upper end 51b is correspondingly arranged out, and the rear end of bolt 52 is provided with armature 53, be relatively set with electromagnet 54 with armature 53, the rear end of bolt 52 is also cased with reset spring 55, one end of reset spring 55 with First upper end 51a is connected, and the other end of reset spring 55 is connected with armature 53;

The single-chip microcontroller is provided with Electromagnetic Control end, and single-chip microcontroller connects the control of second switch by Electromagnetic Control end End, second switch control 54 power on/off of electromagnet.

The cross section of the bolt 52 is rectangle, and the cross section of rectangle is adapted with the rectangle hanging hole that automobile rear is arranged, It can prevent warning sign from swaying.

Warning sign can be hung on automobile tail by above-mentioned electromagnetism hook 5, and automobile tail installs the hanging hole of rectangle additional, when needing to discharge When, electromagnet 54 is controlled by single-chip microcontroller and is powered, electromagnet 54 pulls out bolt 52 from the pin hole that the second upper end 51b is correspondingly arranged Out, warning sign can be discharged into ground, then proceed to designated position by controlling trolley.

The deflecting roller 14, power wheel 16 are rubber wheel.

Rubber wheel has a kind of cushioning effect when trolley is discharged.

The deflecting roller 14, power wheel 16 wheel face be provided with anti-skid bulge.

Anti-skid bulge prevents deflecting roller 14, power wheel 16 to be trapped in mud pit, cooperates stepper motor, is more suitable for stopping at inclination Road surface on.

The single-chip microcontroller is also connected with gsm module 6, GPS module 9, and single-chip microcontroller is connected with server 7, institute by gsm module 6 It states single-chip microcontroller and is also connected with speech recognition module 8.

Real-time road system is provided in the server 7, single-chip microcontroller obtains location information by GPS module 9, passes through clothes The real-time road system being engaged in device 7 issues traffic information.

When mobile phone has a power failure, it is necessary to get off at warning sign and go to withdraw warning sign, this is abnormally dangerous, by the way that language is arranged Sound identification module 8 can issue the phonetic order of " warning sign is returned " to warning sign and control after single-chip microcontroller obtains phonetic order Warning sign processed is along backtracking.

The present invention provides a kind of mobile warning sign of radio controllable, by handheld device, that is, controllable mobile warning sign, Avoid the occurrence of traffic accident of knocking into the back.

Finally it should be noted that: the above enumerated are only specific embodiments of the present invention son, the technology of certain this field Personnel can be modified to the present invention and modification, if these modifications and variations belong to the claims in the present invention and its equivalent skill Within the scope of art, it is considered as protection scope of the present invention.

Claims (3)

1. a kind of mobile warning sign of radio controllable, it is characterised in that: including trolley (1), trolley is provided with warning mark on (1) (2);
Trolley (1) includes the vehicle frame (11) of a shape, and steering motor (12) are fixedly installed in the front of vehicle frame (11), steering motor (12) It is connected with a deflecting roller (14) by steering mechanism (13), the rear portion of vehicle frame (11) is equipped with shaft (15), shaft (15) Both ends are installed with power wheel (16), are further fixedly arranged on power motor (17) in vehicle frame (11), power motor (17) passes through deceleration Mechanism (18) drives shaft (15) rotation;
Steering motor (12), power motor (17) are all connected to control circuit, the control circuit be provided with bluetooth module or WIFI module;
The steering motor (12) is stepper motor, and the steering motor (12) is provided with electric machine support (19), steering motor (12) it is mounted on the preceding bottom surface of vehicle frame (11) by electric machine support (19), the steering mechanism (13) includes the bogie of a shape (131), the output shaft of steering motor (12) is connected downwards and with bogie (131) upper center, and two of bogie (131) Lower end is connected by circular shaft (132), and the rotating middle part of circular shaft (132) is arranged the deflecting roller (14);
The deceleration mechanism (18) is belt pulley deceleration mechanism, or is gear reduction, and the power motor (17) is also Stepper motor;
The control circuit includes single-chip microcontroller, and single-chip microcontroller is provided with bluetooth side group, and single-chip microcontroller connects bluetooth mould by bluetooth side group Block;
The single-chip microcontroller is provided with the first control terminal group, and single-chip microcontroller is connected with the first stepper motor mould by the first control terminal group Block, the first stepping motor module are provided with the first driving end group, and stepper motor module connects power electric by the first driving end group Machine (17);
The single-chip microcontroller is provided with the second control terminal group, and single-chip microcontroller is connected with second stepper motor mould by the second control terminal group Block, second stepper motor module are provided with the second driving end group, and second stepper motor module is turned by the second driving end group connection To motor (12);
The warning mark (2) is cone cylinder;
Battery pack (3) are provided in the cone cylinder, the control circuit is also disposed in cone cylinder, and battery pack (3) is control circuit Power supply;
It is provided at the top of the cone cylinder warning lamp (4), the single-chip microcontroller is provided with instruction control terminal, and single-chip microcontroller passes through instruction control The control terminal of connection first switch tube in end processed, first switch tube control warning lamp (4) power on/off;
Electromagnetism hook (5) is additionally provided at the top of the warning lamp (4), the electromagnetism hook (5) includes the lock body (51) of U-shaped, The lower end of lock body (51) and the top of warning lamp (4) are connected, and are equipped with bolt (52) in the first upper end (51a) of lock body (51), The first upper end (51a) that lock body (51) are stretched out in the front end of bolt (52) is protruded into the pin hole that the second upper end (51b) is correspondingly arranged, and is inserted The rear end of pin (52) is provided with armature (53), is relatively set with electromagnet (54) with armature (53), the rear end of bolt (52) also covers Have reset spring (55), one end of reset spring (55) is connected with the first upper end (51a), the other end and rank of reset spring (55) Iron (53) is connected;The cross section of the bolt (52) is rectangle;The rectangle hanging hole phase that the cross section of rectangle is arranged with automobile rear Adaptation;
The single-chip microcontroller is provided with Electromagnetic Control end, and single-chip microcontroller connects the control terminal of second switch by Electromagnetic Control end, the Two switch controlled electromagnet (54) power on/off.
2. the mobile warning sign of radio controllable according to claim 1, it is characterised in that: the deflecting roller (14), power Take turns (16) be rubber wheel, the deflecting roller (14), power wheel (16) wheel face be provided with anti-skid bulge.
3. the mobile warning sign of radio controllable according to claim 2, it is characterised in that: the single-chip microcontroller is also connected with Gsm module (6), GPS module (9), single-chip microcontroller are connected with server (7) by gsm module (6), and the single-chip microcontroller is also connected with Speech recognition module (8).
CN201710358486.XA 2017-05-19 2017-05-19 The mobile warning sign of radio controllable CN107128249B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710358486.XA CN107128249B (en) 2017-05-19 2017-05-19 The mobile warning sign of radio controllable

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CN107128249B true CN107128249B (en) 2019-07-09

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107878315A (en) * 2017-09-29 2018-04-06 安徽省中车科技有限公司 A kind of intelligent warning sign wireless connection control method
CN107878316A (en) * 2017-09-29 2018-04-06 安徽省中车科技有限公司 A kind of intelligent warning sign based on radio communication
CN107578718A (en) * 2017-10-09 2018-01-12 深圳市宇辰智能科技有限公司 A kind of LED warning signs
CN108501802A (en) * 2018-04-04 2018-09-07 吴旌旗 A kind of automatic placement caution sign board
CN111002899B (en) * 2019-12-31 2020-11-24 华睿交通科技有限公司 On-spot urgent processing apparatus of highway vehicle trouble

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EP1314631A2 (en) * 2001-11-23 2003-05-28 Kia Motors Corporation Apparatus and method for alarming danger when an automobile is cornering on a downhill road
CN104276081A (en) * 2014-09-30 2015-01-14 中山市德斯邦电子科技有限公司 Multifunctional car warning light
CN105346444A (en) * 2015-11-19 2016-02-24 安孝秋 Self-moving vehicle warning device

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
EP1314631A2 (en) * 2001-11-23 2003-05-28 Kia Motors Corporation Apparatus and method for alarming danger when an automobile is cornering on a downhill road
CN104276081A (en) * 2014-09-30 2015-01-14 中山市德斯邦电子科技有限公司 Multifunctional car warning light
CN105346444A (en) * 2015-11-19 2016-02-24 安孝秋 Self-moving vehicle warning device

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