CN113470375A - Fixed point speed measuring device based on radio waves - Google Patents
Fixed point speed measuring device based on radio waves Download PDFInfo
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- CN113470375A CN113470375A CN202111030853.6A CN202111030853A CN113470375A CN 113470375 A CN113470375 A CN 113470375A CN 202111030853 A CN202111030853 A CN 202111030853A CN 113470375 A CN113470375 A CN 113470375A
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- infrared
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
- G08G1/054—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed photographing overspeeding vehicles
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention is suitable for the field of high-speed tunnel fixed-point speed measurement equipment, and provides a fixed-point speed measurement device based on radio waves, which is characterized by comprising the following components: fixed point speed measurement mechanism and prompt board, fixed point speed measurement mechanism includes infrared emission mechanism and infrared receiving mechanism, infrared emission mechanism includes first pillar, first fixed plate group, super-frequency infrared emitter and transmission base, first fixed plate group installs on first pillar, the both ends at first fixed plate group are installed to the transmission base, test the speed through the fixed point, set up the device in tunnel entry and tunnel, it is overspeed whether to set up the device in the entrance can remind the driver to get into the tunnel, and remind whether the driver is overspeed in the darker tunnel of light, whether the tunnel export when light is strengthened rapidly reminds the driver to overspeed, thereby reach the speed of monitoring and reminding driving the vehicle through the whole in-process in tunnel, improve driver's safety consciousness, thereby reduce the traffic accident incidence in the tunnel.
Description
Technical Field
The invention belongs to the field of high-speed tunnel fixed-point speed measurement equipment, and particularly relates to a fixed-point speed measurement device based on radio waves.
Background
The tunnel is a section with multiple safety accidents, the main cause is the black hole effect, the black hole effect in tunneling means the visual field illusion of the driver: when a driver approaches a tunnel and looks into the tunnel from the outside of the tunnel, the tunnel looks like a black hole due to the difference in brightness between the tunnel and its surroundings, so that recognition is difficult and it is difficult to find an obstacle. The change part is an interval in which the illumination gradually decreases, and the relaxation part is an interval in which the driver enters the tunnel and adapts to the gradually decreasing brightness until the driver enters the tunnel and the brightness is used for basic illumination.
The high-speed tunnel speed measurement usually adopts several modes, the most common modes are radar speed measurement and induction coil speed measurement, and the radar speed measurement means that when a target approaches a radar antenna, the frequency of a reflected signal is higher than that of a transmitter; conversely, when the target moves away from the antenna, the reflected signal frequency will be lower than the transmission probability. Therefore, the relative speed of the target and the radar can be calculated by means of the change value of the frequency, and the average speed is obtained by detecting the time of the automobile passing through the three coils through the speed measurement test of the induction coil. The radar is tested the speed and is used for this kind of general highway section cost of highway higher, and induction coil is because of testing a distance, exists the dispute to judging whether the car is overspeed, after testing the speed to the car, two kinds of devices do not set up urgent suggestion device, can lead to the driver to be consciousness not to oneself overspeed like this, and the potential safety hazard of traveling increases.
Disclosure of Invention
The invention provides a fixed-point speed measuring device based on radio waves, and aims to solve the problem of warning and prompting for overspeed vehicles after fixed-point speed measurement.
The invention is realized in this way, a fixed point speed measuring device based on radio wave, its characteristic includes: a fixed-point speed measuring mechanism and a prompt board, wherein the fixed-point speed measuring mechanism comprises an infrared transmitting mechanism and an infrared receiving mechanism, the infrared emission mechanism comprises a first support, a first fixed plate group, an over-frequency infrared emitter and an emission base, the first fixed plate group is arranged on the first support, the emission bases are arranged at two ends of the first fixed plate group, the over-frequency infrared transmitter is arranged in the transmitting base, the infrared receiving mechanism comprises a second fixed plate group, a second supporting column, a timer and an infrared receiver, the second fixed plate group is fixed on the second support, the infrared receivers are arranged at two ends of the second fixed plate group, the time-recorder is installed on the second pillar, the prompt board is installed the rear of fixed point speed measuring mechanism, the prompt board with infrared receiving mechanism adopts radio signal to connect.
Furthermore, first fixed plate group includes half first and half second, half first with half second adopts stud to connect, half second includes half third and half fourth, half third with half fourth adopts stud to connect, the infrared transmitter of overfrequency with the transmission base adopts bolted connection.
Furthermore, the distance between the emission center points of the two over-frequency infrared emitters is L, the distance between the center points of the two infrared receivers is L, the projection of a connecting line between the over-frequency infrared emitter and the infrared receiver on a horizontal plane and a road edge form an acute angle of beta degrees, and the time interval when the two infrared receivers do not receive infrared signals is T.
Further, the infrared receiver includes a protective outer wall having a length that is a multiple of a diameter of the receiving surface, and an infrared receiving surface.
Further, the infrared receiver has a cylindrical shape, and the area of the infrared receiving surface is twice the area irradiated with the infrared ray.
Further, still include lighting mechanism and snapshot mechanism, lighting mechanism includes illumination support and light, the illumination support is installed on the first support top, the light is installed on the illumination support, snapshot mechanism includes snapshot ware and snapshot base, the snapshot base is installed on the first support top, the snapshot ware is installed on the snapshot base.
Furthermore, the illuminating lamp is connected with the illuminating support through a spherical hinge, and the snapshot base is connected with the snapshot device through a spherical hinge.
Furthermore, the snapshot device, the timer, the infrared receiving mechanism and the prompting board are in signal connection with a central controller.
When the fixed-point speed measuring mechanism is arranged, the front body or the tire of the automobile firstly shields a beam of infrared rays close to the automobile body, the first infrared receiving surface of the infrared receiver cannot receive the infrared rays, the timer starts to time, when the second beam of infrared rays is shielded, the second infrared receiving surface cannot receive infrared ray signals, the timer stops working and transmits time signals to the central controller, the central controller calculates the automobile speed according to a formula, the automobile speed is compared with a threshold value, the device is arranged at the entrance of the tunnel and the exit of the tunnel, namely the exit of the tunnel, the device can remind a driver of overspeed when entering the tunnel, the device can remind the driver of overspeed in the tunnel with darker light, the exit of the tunnel when the light is rapidly strengthened can remind the driver of overspeed, and the speed of monitoring and reminding the vehicle in the whole process of passing the tunnel is achieved, the safety awareness of the driver is improved, and therefore the traffic accident rate in the tunnel is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a fixed-point speed measuring device based on radio waves according to the present invention;
FIG. 2 is a schematic diagram of the fixed point speed measurement mechanism and the prompting board in FIG. 1;
FIG. 3 is a first perspective view of the infrared emitting mechanism, the illuminating mechanism, and the snapping mechanism of FIG. 2;
FIG. 4 is a second perspective view of the infrared emitting mechanism, the illuminating mechanism, and the snapping mechanism of FIG. 2;
FIG. 5 is a first perspective view of the IR receiving device of FIG. 2;
fig. 6 is a second perspective view of the infrared receiving device of fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
Referring to fig. 1 to 6, a fixed-point speed measuring device based on radio waves is characterized by comprising: the fixed point speed measuring mechanism 1 comprises an infrared transmitting mechanism 101 and an infrared receiving mechanism 102, the infrared transmitting mechanism 101 comprises a first support column 103, a first fixed plate group 104, an ultra-frequency infrared transmitter 105 and a transmitting base 106, the first fixed plate group 104 is arranged on the first support column 103, the transmitting base 106 is arranged at two ends of the first fixed plate group 104, the ultra-frequency infrared transmitter 105 is arranged in the transmitting base 106, the infrared receiving mechanism 102 comprises a second fixed plate group 107, the second supporting column 108, the timer 109 and the infrared receiver 110, the second fixed plate group 107 is fixed on the second supporting column 108, the infrared receiver 110 is installed at two ends of the second fixed plate group 107, the timer 109 is installed on the second supporting column 108, the prompt board 2 is installed behind the fixed point speed measuring mechanism 1, and the prompt board 2 is connected with the infrared receiving mechanism 102 through wireless signals.
The infrared transmitting mechanism 101 and the infrared receiving mechanism 102 are adopted to measure the vehicle speed, compared with radar detection and speed detection in a certain distance, the real-time performance and accuracy are higher, the speed of a running vehicle at a certain point can be measured, the average speed in a certain distance is not measured, the prompt board 2 is additionally arranged, the real-time vehicle speed can be compared with a speed limit threshold value, finally, whether overspeed is displayed on the prompt board 2, and then, whether overspeed is reminded to a driver, the road running safety of the driver is protected, and meanwhile, in a tunnel scene, the real-time speed of the vehicle can be detected by infrared rays.
The first fixed plate group 104 comprises a first half block 111 and a second half block 112, the first half block 111 and the second half block 112 are connected through a stud, the second fixed plate group 107 comprises a third half block 113 and a fourth half block 114, the third half block 113 and the fourth half block 114 are connected through a stud, and the over-frequency infrared emitter 105 and the emitting base 106 are connected through a bolt.
The angle of the super-frequency infrared emitter 105 and the infrared receiver 110 can be adjusted according to different installation terrains, and fixed-point real-time speed values with different accuracies can be obtained according to the included angle between the projection of a connecting line between the super-frequency infrared emitter 105 and the infrared receiver 110 on a horizontal plane and a road edge.
The angle of the ultra-frequency infrared transmitter 105 and the infrared receiver 110 can be adjusted by rotating the first fixed plate group 104 and the second fixed plate group 107 according to the road curve condition, so that the distance between two infrared rays passing by a measuring vehicle is a straight line, and the measuring precision is improved.
The distance between the emission center points of the two over-frequency infrared emitters 105 is L, the distance between the center points of the two infrared receivers 110 is L, the projection of the connecting line between the over-frequency infrared emitters 105 and the infrared receivers 110 on the horizontal plane and the road rock form an acute angle of beta degrees on the horizontal plane, and the time interval when the two infrared receivers 110 do not receive infrared signals is T.
The length of the L is shorter than the width of the road surface, so that on a curve with a larger diameter and a straight line surface, the route of the vehicle passing through two infrared rays is similar to a straight line, when the speed of the vehicle is calculated, errors caused by a plurality of external factors are reduced, and the accuracy of speed detection is improved.
The interference of external light can be effectively prevented, and the deviation is generated on the measuring result.
The infrared receiver 110 has a cylindrical shape, and the area of the infrared receiving face 116 is 4 times the area irradiated with the infrared rays.
In the installation process of the infrared transmitting mechanism 101 and the infrared receiving mechanism 102, the infrared receiver 110 does not need to be precisely aligned with the super-frequency infrared transmitter 105, so that the installation speed in the installation process is improved, and the precision in vehicle speed detection is not reduced.
Carry out the fixed point to passing vehicle and test the speed, test the speed to the vehicle through shorter distance L, the numerical value that tests the speed has credibility more, has shown this vehicle speed of a motor vehicle under a certain specific position, and the speeding vehicle carries out the suggestion of prompt board 2, can slow down in advance at tunnel portal driver and avoid the emergence of traffic accident, carries out the suggestion of testing the speed equally in the tunnel, can effectually remind driver real-time speed to reduce the traffic safety accident incidence in the tunnel.
Example two
Referring to fig. 1 to 6, the second embodiment includes all the structures and advantages of the first embodiment, the radio wave-based fixed-point speed measuring device further includes an illuminating mechanism 3 and a capturing mechanism 4, the illuminating mechanism 3 includes an illuminating support 301 and an illuminating lamp 302, the illuminating support 301 is installed on the top end of the first support 103, the illuminating lamp 302 is installed on the illuminating support 301, the capturing mechanism 4 includes a capturing device 401 and a capturing base 402, the capturing base 402 is installed on the top end of the first support 103, and the capturing device 401 is installed on the capturing base 402.
The method comprises the steps of illuminating vehicles with serious overspeed in a tunnel scene, providing a light source, taking a picture by the snapshot device 401, carrying out traffic violation processing after the prompt board 2 prompts overspeed, further reminding a vehicle driver to violate speed limit regulations, and strengthening the driving safety awareness of the driver.
The illuminating lamp 302 is connected with the illuminating support 301 through a ball-type hinge, and the snapshot base 402 is connected with the snapshot device 401 through a ball-type hinge.
The illumination direction of the illuminating lamp 302 and the snapshot direction of the snapshot device 401 can be adjusted according to the width of the road surface, and violation vehicles in the tunnel can be more accurately snapshot.
The snapshotting device 401, the timer 109, the infrared receiving mechanism 102 and the prompting board 2 are all in signal connection with the central controller.
The timer 109, the infrared receiving mechanism 102 and the prompting board 2 are used in signal cooperation with the central controller, whether the real-time speed exceeds a speed threshold value or not can be rapidly calculated by utilizing a calculation formula, and then the speed threshold value is displayed on the prompting board 2, whether the passing vehicle is snapshotted or not can be snapshotted by the central controller, and the violation vehicle in the tunnel is snapshotted.
According to the following calculation formula:
the speed of the vehicle is detected and calculated, and the instantaneous speed and the average speed of the vehicle can be accurately obtained.
When the automobile passes through the fixed point speed measuring mechanism 1, the front body or the tire of the automobile firstly shields one beam of infrared rays close to the automobile body, the first infrared receiving surface 116 of the infrared receiver 110 cannot receive the infrared rays, the timer 109 starts to time, when the second beam of infrared rays is shielded, the second infrared receiving surface 116 cannot receive infrared ray signals, the timer 109 stops working, time signals are transmitted to the central controller, the central controller calculates the automobile speed according to a formula, the automobile speed is compared with a threshold value, when the automobile speed exceeds the threshold value, the overspeed is displayed on the prompt board 2, the overspeed percentage is displayed, the driver is reminded of the overspeed, the speed reduction is achieved, and the driving safety awareness of the driver is improved.
The beneficial effects provided by the device
By arranging the fixed point speed measuring mechanism 1, the front body or the tire of the automobile firstly shields a beam of infrared rays close to the automobile body, the first infrared receiving surface 116 of the infrared receiver 110 can not receive the infrared rays, the timer 109 starts to time, when the second beam of infrared rays is shielded, the second infrared receiving surface 116 can not receive infrared signals, the timer 109 stops working and transmits time signals to the central controller, the central controller calculates the automobile speed according to a formula, the automobile speed is compared with a threshold value, the device is arranged at the entrance of the tunnel and at the exit of the tunnel, namely the exit of the tunnel, the device is arranged at the entrance to remind a driver whether to overspeed when entering the tunnel, and the driver is reminded whether to overspeed in the tunnel with darker light, the exit of the tunnel when the light is intensified rapidly is reminded to overspeed, thereby monitoring and reminding the speed of driving the automobile in the whole process of passing the tunnel, the safety awareness of the driver is improved, and therefore the traffic accident rate in the tunnel is reduced.
After the prompt board prompts, the vehicle with medium overspeed and serious overspeed is snapshot by the snapshot device, corresponding punishment is given to the vehicle violating the regulations, the flash lamp during snapshot by the snapshot device also plays a role in prompting overspeed, driving safety awareness of a driver at a high-speed tunnel can be deepened by snapshot violating the regulations, and the traffic safety accident rate at the tunnel is further reduced.
Working principle of the device
When the automobile passes through the fixed point speed measuring mechanism 1, the front body or the tire of the automobile firstly shields one beam of infrared rays close to the automobile body, the first infrared receiving surface 116 of the infrared receiver 110 cannot receive the infrared rays, the timer 109 starts to time, when the second beam of infrared rays is shielded, the second infrared receiving surface 116 cannot receive infrared ray signals, the timer 109 stops working, time signals are transmitted to the central controller, the central controller calculates the automobile speed according to a formula, the automobile speed is compared with a threshold value, when the automobile speed exceeds the threshold value, the overspeed is displayed on the prompt board 2, the overspeed percentage is displayed, the driver is reminded of the overspeed, the speed reduction is achieved, and the driving safety awareness of the driver is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A fixed point speed measuring device based on radio waves is characterized by comprising: the fixed-point speed measuring mechanism (1) comprises an infrared transmitting mechanism (101) and an infrared receiving mechanism (102), the infrared transmitting mechanism (101) comprises a first support column (103), a first fixed plate group (104), an ultra-frequency infrared transmitter (105) and a transmitting base (106), the first fixed plate group (104) is installed on the first support column (103), the transmitting base (106) is installed at two ends of the first fixed plate group (104), the ultra-frequency infrared transmitter (105) is installed in the transmitting base (106), the infrared receiving mechanism (102) comprises a second fixed plate group (107), a second support column (108), a timer (109) and an infrared receiver (110), the second fixed plate group (107) is fixed on the second support column (108), and the infrared receiver (110) is installed at two ends of the second fixed plate group (107), timer (109) are installed on second pillar (108), install prompt board (2) the rear of fixed point speed measuring mechanism (1), prompt board (2) with infrared receiving mechanism (102) adopt wireless signal to connect.
2. The radio-wave-based pointing velocimeter according to claim 1, wherein the first fixed plate group (104) comprises a first half (111) and a second half (112), the first half (111) and the second half (112) are connected by a stud, the second fixed plate group (107) comprises a third half (113) and a fourth half (114), the third half (113) and the fourth half (114) are connected by a stud, and the over-frequency infrared emitter (105) and the emitting base (106) are connected by a bolt.
3. The fixed-point speed measuring device based on radio waves as claimed in claim 2, wherein the distance between the center points of the two over-frequency infrared transmitters (105) is L, the distance between the center points of the two infrared receivers (110) is L, the projection of the connecting line between the over-frequency infrared transmitter (105) and the infrared receiver (110) on the horizontal plane forms an acute angle of β degrees with the road edge, and the time interval when the two infrared receivers (110) do not receive the infrared signals is T.
4. A radio-wave based pointing speed measurement device according to claim 3, wherein the infrared receiver (110) includes a protective outer wall (115) and an infrared receiving surface (116), and the length of the protective outer wall (115) is 3 times the diameter of the receiving surface.
5. The radio wave-based pointing velocity measurement device according to claim 4, wherein the infrared receiver (110) has a cylindrical shape, and the area of the infrared receiving face (116) is 4 times the area irradiated with the infrared ray.
6. The fixed-point speed measurement device based on radio waves as claimed in claim 1, further comprising an illuminating mechanism (3) and a capturing mechanism (4), wherein the illuminating mechanism (3) comprises an illuminating support (301) and an illuminating lamp (302), the illuminating support (301) is mounted on the top end of the first support column (103), the illuminating lamp (302) is mounted on the illuminating support (301), the capturing mechanism (4) comprises a capturing device (401) and a capturing base (402), the capturing base (402) is mounted on the top end of the first support column (103), and the capturing device (401) is mounted on the capturing base (402).
7. The radio-based pointing speed measurement device according to claim 6, wherein the illumination lamp (302) is connected to the illumination holder (301) by a ball-type hinge, and the capturing base (402) is connected to the capturing device (401) by a ball-type hinge.
8. The radio-based pointing speed measurement device according to claim 7, wherein the snapshottor (401), the timer (109), the infrared receiver (102), and the prompt board (2) are all connected with a central controller by signals.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111030853.6A CN113470375A (en) | 2021-09-03 | 2021-09-03 | Fixed point speed measuring device based on radio waves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111030853.6A CN113470375A (en) | 2021-09-03 | 2021-09-03 | Fixed point speed measuring device based on radio waves |
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| CN113470375A true CN113470375A (en) | 2021-10-01 |
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| CN202111030853.6A Pending CN113470375A (en) | 2021-09-03 | 2021-09-03 | Fixed point speed measuring device based on radio waves |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113823094A (en) * | 2021-11-17 | 2021-12-21 | 四川九通智路科技有限公司 | Tunnel real-time monitoring management system and method based on traffic flow big data |
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| CN2800408Y (en) * | 2005-06-16 | 2006-07-26 | 公安部第三研究所 | Dual camera laser speed-measuring evidence-obtaining instrument |
| CN202976469U (en) * | 2012-11-01 | 2013-06-05 | 尾扎拿加彭错 | Infrared ray speed monitoring system |
| CN206421576U (en) * | 2016-08-05 | 2017-08-18 | 中交北斗技术有限责任公司 | A kind of intelligent transportation speed measuring and monitoring device |
| CN208110836U (en) * | 2018-03-09 | 2018-11-16 | 河南省新乡市新星交通器材有限公司 | A kind of channelizing island motor vehicle warning signal lamp |
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2021
- 2021-09-03 CN CN202111030853.6A patent/CN113470375A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2800408Y (en) * | 2005-06-16 | 2006-07-26 | 公安部第三研究所 | Dual camera laser speed-measuring evidence-obtaining instrument |
| CN202976469U (en) * | 2012-11-01 | 2013-06-05 | 尾扎拿加彭错 | Infrared ray speed monitoring system |
| CN206421576U (en) * | 2016-08-05 | 2017-08-18 | 中交北斗技术有限责任公司 | A kind of intelligent transportation speed measuring and monitoring device |
| CN208110836U (en) * | 2018-03-09 | 2018-11-16 | 河南省新乡市新星交通器材有限公司 | A kind of channelizing island motor vehicle warning signal lamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113823094A (en) * | 2021-11-17 | 2021-12-21 | 四川九通智路科技有限公司 | Tunnel real-time monitoring management system and method based on traffic flow big data |
| CN113823094B (en) * | 2021-11-17 | 2022-02-18 | 四川九通智路科技有限公司 | Tunnel real-time monitoring management system and method based on traffic flow big data |
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