CN211124379U - Mobile traffic light - Google Patents
Mobile traffic light Download PDFInfo
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- CN211124379U CN211124379U CN201921674961.5U CN201921674961U CN211124379U CN 211124379 U CN211124379 U CN 211124379U CN 201921674961 U CN201921674961 U CN 201921674961U CN 211124379 U CN211124379 U CN 211124379U
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Abstract
A mobile traffic light comprises a crossroad red and green light signal sending module and a vehicle-mounted traffic light signal receiving module, wherein the crossroad red and green light signal sending module and the vehicle-mounted traffic light signal receiving module are arranged at the position of a crossroad red and green light; the crossroad traffic light signal sending module comprises a first microprocessor, an output end of the first microprocessor is connected with the crossroad traffic light signal display module, an output end of the first microprocessor is connected with a first communication receiving module through the first communication sending module, the vehicle-mounted traffic light signal receiving module comprises a first communication receiving module, the first communication receiving module and a third microprocessor mutually transmit information, three output ends of the first microprocessor are connected with the vehicle-mounted traffic light display module, and an input end of the third microprocessor is connected with the GPS positioning module. The method has the characteristics of real-time performance, humanization and suitability for application.
Description
Technical Field
The utility model relates to a traffic light signal safety control technical field, in particular to portable traffic lights.
Background
With the development of society, the number of motor vehicles is gradually huge, so that the traffic pressure is higher and higher, especially the traffic jam condition at crossroads is very serious, and the motor vehicles are also road sections with high frequency of accidents. At present, the crossroad mainly controls whether vehicles in different directions run or stop through traffic lights, a driver observes the state of the traffic lights in front through naked eyes, but the situation that the driver cannot accurately see traffic light information due to overhigh vehicles in front or the shielding of other obstacles sometimes occurs, and the driver stops the vehicle in time, so that the phenomenon that the driver runs the red lights due to misjudgment, serious people even traffic accidents occur, and the like, not only property loss is caused, but also the serious people even endanger life safety. Some researchers have proposed solutions to this phenomenon. The method mainly comprises two categories, one category is that the image of the traffic lights at the crossroad is identified based on the information such as image identification, flow statistics and the like, and then the identified information is transmitted to the vehicle for voice prompt or liquid crystal display. For example, chinese patent application No. 201810473515.6 discloses a method, an electronic device, a storage medium, and a system for recognizing traffic lights for automobiles. Further, as the chinese patent with application number 201610571158.3, a method and system for linking vehicle-mounted intelligent traffic lights is disclosed. And judging the traffic lights by utilizing an image identification technology. Although the method based on image recognition can recognize the state of the traffic light, the method is influenced by an algorithm, so that the method has the problems of low precision, long delay time and incapability of ensuring real-time property. The other type is information transmission by using a wireless communication module, but the communication mode is not mentioned. For example, chinese patent application No. 201710821403.6 discloses a matching method for receiving traffic light information by a vehicle. Further, as disclosed in the chinese patent No. 201220352200, X, a traffic light system based on radio communication is disclosed, but radio communication can only establish a chain within a sight line range, and the sight line range between two communication points must be unobstructed, and unexpected factors (such as flying birds passing through) may cause communication line interruption. These factors are unavoidable in actual road conditions. The problem of the very high transmission rate and the transmission distance of the communication method must be considered. And the currently disclosed patent does not mention a solution when the red and green lights of the crossroad are out of order, which is a phenomenon that occurs when there is an actual traffic problem.
Disclosure of Invention
For overcoming the not enough of above-mentioned prior art, the utility model aims to provide a portable traffic lights has characteristics such as the precision is high, transmission rate is fast, the real-time strong, the trouble is in time solved.
In order to realize the purpose, the utility model discloses a technical scheme is:
a mobile traffic light comprises a crossroad red and green light signal sending module and a vehicle-mounted traffic light signal receiving module, wherein the crossroad red and green light signal sending module and the vehicle-mounted traffic light signal receiving module are arranged at the position of a crossroad red and green light;
the crossroad traffic light signal sending module comprises a first microprocessor 4, the output end of the first microprocessor 4 is connected with a crossroad traffic light signal display module 1, the output end of the first microprocessor 4 is connected with a first communication receiving module 8 through a first communication sending module 6, the vehicle-mounted traffic light signal receiving module comprises a first communication receiving module 8, the first communication receiving module 8 and a third microprocessor 10 mutually transmit information, the output end of the third microprocessor 10 is connected with a vehicle-mounted traffic light display module 11, and the input end of the third microprocessor 10 is connected with a GPS positioning module 12.
The crossroad red and green light signal display module 1 is used for displaying the current crossroad traffic light state, the microprocessor I4 is used for controlling the crossroad traffic light signal display module 1 and transmitting the current state to the communication receiving module I8 through the communication sending module I6, the communication receiving module I8 transmits the received information to the microprocessor III 10, the microprocessor III 10 is used for controlling the vehicle-mounted traffic light display module 11 to display time, and the GPS positioning module 12 is used for transmitting the current position information to the microprocessor III 10.
The input end of the first microprocessor 4 is connected with an infrared keyboard 2, a small box is installed on a traffic light pole and locked, the infrared keyboard is placed in the small box, when the red light and the green light break down, traffic police personnel re-input information through the infrared keyboard 2, the output end of the first microprocessor 4 is connected with a second microprocessor 5, the second microprocessor 5 is used for controlling a remote alarm module 3 to send alarm information to a traffic police command center of a public security bureau, and the output end of the second microprocessor 5 is connected with a third microprocessor 10 through a second communication sending module 7 and a second communication receiving module 9.
The communication sending module I6, the communication sending module II 7 and the communication receiving module I8 are connected in series, and the communication receiving module II 9 adopts an industrial Wi-Fi communication mode.
The vehicle-mounted traffic light display module 12 is mounted at the rear position of the vehicle. According to the vision of human eyes, the proper position is adjusted, so that the driver of the rear vehicle can conveniently check the traffic light display information.
A method for using a mobile traffic light stores red and green light information of a crossroad in a microprocessor I4 and a microprocessor II 5 simultaneously, the position of each crossroad traffic light, the display state (red, yellow and green) of the traffic light at the moment, the countdown seconds and other information in each direction (forward, wait, left turn and right turn) are normally worked, the microprocessor II 5 is only used for monitoring the data sending condition of the microprocessor I4, when the data sending condition of the microprocessor I4 is monitored to be abnormal (for example, when the normal communication is monitored, the received data is 8-bit data (assumed to be 01010101), but the actually transmitted data is less than 8-bit data) or the format is not matched, the traffic light at the crossroad is indicated to be in fault, the traffic light information pre-stored in the microprocessor II 5 is used for sending the data to a vehicle-mounted end, and a remote alarm module 3 is controlled to send alarm information to a traffic police command center of a public security, prompting a traffic police to start an emergency traffic light display mode at present, and avoiding the traffic safety problem caused by the fault of the red and green lights of the crossroad;
the microprocessor III 10 is used for receiving automobile position information sent by the GPS positioning module 12, the microprocessor III 10 stores the positions of traffic lights at each intersection in advance, the display states of the traffic lights at the moment, countdown seconds and other information, when the microprocessor III 10 judges that the current automobile is in a state close to the traffic lights, and when the distance is smaller than D, the microprocessor III 10 controls the communication channel to be opened and controls the vehicle-mounted traffic light display module 11 to display the current states of the traffic lights, when the microprocessor III 10 judges that the automobile is in a state far away from the traffic lights, the communication channel a is closed, data transmission is not carried out at the moment, and the vehicle-mounted traffic light display module 11 is closed.
The utility model has the advantages that:
compared with the traditional image identification traffic light method, the accuracy is greatly improved. And an industrial Wi-Fi communication mode is adopted, so that the requirements on real-time performance and transmission distance are met. And provides a solution when the traffic lights of the crossroad have faults. Especially on-vehicle traffic lights installs in car rear position to can adjust according to driver's visual angle, the back car driver of being convenient for looks over traffic lights information, more brought the present the utility model discloses humanized characteristics.
Drawings
Fig. 1 is a system overview block diagram.
Fig. 2 is the utility model discloses on-vehicle traffic lights display module schematic diagram.
Fig. 3 is a schematic view of the installation of the position of the traffic lights (here, two vehicle types are taken as an example).
Fig. 4 is a schematic diagram of a communication process.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1: the first communication sending module 6, the second communication sending module 7 and the first communication receiving module 8 are arranged in a communication mode of industrial Wi-Fi, and in order to ensure that the first traffic light communication sending module 6 at the intersection can send data to the first vehicle-mounted traffic light communication receiving module 8 in real time or the second traffic light communication sending module 7 at the intersection can send data to the second vehicle-mounted traffic light communication receiving module 9 in real time, the adopted communication mode must have high transmission rate and is wireless communication.
The microprocessor three 10 is used for receiving the automobile position information sent by the GPS positioning module 12. The first microprocessor 4 and the second microprocessor 5 pre-store the position of the traffic lights at each intersection, the display state (red, yellow and green) of the traffic lights at the moment, the countdown seconds in each direction (forward, waiting, left-turning and right-turning), and the like. When the third microprocessor (10) judges that the current vehicle is in a state of being close to the traffic light, and when the distance is smaller than D (for example, 100m), the third microprocessor (10) controls the communication channel a to be opened, and controls the vehicle-mounted traffic light display module 11 to display the current state of the traffic light. When the third microprocessor 10 judges that the vehicle is far away from the traffic light, the communication channel is closed, data transmission is not carried out at the moment, and the vehicle-mounted traffic light display module 11 is closed.
On-vehicle traffic light display module 11 not only can show crossroad red green light information in real time, when crossroad traffic light breaks down, starts microprocessor two 5 immediately, and microprocessor two 5 conduct the utility model discloses a redundant design monitors the data that send in microprocessor one 4 constantly, detects microprocessor one 4 when microprocessor two 5 and does not outwards send data or data unusual, starts microprocessor two 5 immediately to send the vehicle-mounted end with the data of prestoring in microprocessor two 5 through communication channel b.
And the vehicle-mounted end realizes the display of traffic light information by using the data sent by the microprocessor II 5. The display mode can effectively avoid the traffic safety problem caused by the fault of the red and green lights of the crossroad.
And the remote alarm module 3 is used for controlling the remote alarm module 3 to send alarm information to a traffic police command center of a public security bureau to prompt a traffic police to start an emergency traffic light display mode at present and to need to be restarted in time when the first microprocessor 4 fails and the second microprocessor 5 is started.
And the infrared keyboard 1 is used for re-inputting data in the microprocessor I4 by a traffic police through the infrared keyboard 1 after the microprocessor I4 breaks down.
The system has two communication channels a and b, when the first microprocessor 4 works normally, data are transmitted through the communication channel a, when the first microprocessor 4 is abnormal, the second microprocessor 5 is started, and at the moment, data are transmitted through the communication channel b.
The embodiment of the utility model provides a portable traffic lights, traffic lights communication send module and on-vehicle traffic lights receiving module adopt the mode of industry Wi-Fi communication, and traffic lights communication module for guaranteeing the crossroad can be real-time to the on-vehicle traffic lights receiving module of all vehicles that is D (for example 100m) apart from crossing traffic lights distance, if the vehicle is too near apart from the position of crossing traffic lights, can lead to the untimely phenomenon that perhaps the driver comes the reaction of communication, consequently the utility model discloses a vehicle begins to send data apart from the position that crossing traffic lights D used 100m as example department, and the communication mode of adoption must have high transmission rate. As the communication distance of the industrial Wi-Fi communication module can reach 100-300m, the transmission speed is very high, and the transmission speed can reach 11mbps (802.11b) or 54mbps (802.11.a), so that the industrial Wi-Fi communication module is suitable for high-speed data transmission services. The real-time requirements of the communication can be fully realized. Therefore, the utility model discloses a mode of industry Wi-Fi communication realizes the transmission of sender and receiver data.
Wi-Fi communication carries out the sending of data key according to four-way handshake protocol, supposing that the key (for example 123) that the sender (here is intersection traffic light communication sending module) sent, the receiver (here is vehicle-mounted traffic light communication receiving module) matches with the sender key and can communicate.
As shown in figure 2, the utility model discloses a vehicle-mounted traffic light display module 11 chooses L ED dot matrix liquid crystal display for use to carry out the demonstration of traffic light countdown time second, L ED display screen has the low power dissipation, the screen has the luminance height, the operating voltage is low, it is miniaturized, long service life, advantages such as shock-resistant and stable performance, and the vehicle is not when communication range, microcontroller can control L ED dot matrix display screen and close, but reduce the energy consumption in the at utmost, and L ED dot matrix display screen low cost, can not cause the influence to the cost problem of specifically implementing.
The GPS positioning module 12 is used for acquiring the vehicle position information,and sends the acquired information to the microprocessor three 10 for data processing, calculation, analysis and the like. The GPS module 12 is used to obtain the current position information of the vehicle, such as the longitude and latitude of the current vehicle. GPS positioning actually determines the position of a GPS receiver by 4 satellites with known positions. The GPS positioning system consists of three parts, namely a space part, a ground part and an equipment part, and the basic principle is that the distance between a satellite with a known position and a user receiver is measured, and then the specific position of the receiver can be known by integrating data of a plurality of satellites. The high-precision GPS system developed to present realizes that 4 satellites can be observed at any time and any point on the earth at the same time so as to realize the purposeNavigationPositioning, time service and the like. The GPS navigation module can be used for acquiring the longitude and latitude of the current vehicle, then the acquired position information is transmitted to the microprocessor, the microprocessor III 10 has the prestored traffic light position information, and then the state that the vehicle is close to or far away from the traffic light position is judged, if the vehicle is close to the traffic light position, a communication channel is opened, and if the vehicle is far away from the traffic light position, the communication channel is closed.
As shown in fig. 3: the on-vehicle traffic lights display module 11 is installed in vehicle rear position, and this display module be detachable, can carry out the selection of mounted position according to the visual angle condition of rear driver according to the motorcycle type of difference (the utility model discloses use two kinds of motorcycle types of truck and car as the example to carry out the drawing description). So that the driver of the rear vehicle can judge whether to continue to move ahead, stop for waiting or slow down according to the display of the traffic light information of the front vehicle. Avoid the traffic accident that shelters from or the sight that leads to that the sight is not good because of the vehicle height in front causes.
The utility model discloses a theory of operation:
as shown in fig. 1 and 4: the method comprises the steps that crossroad red and green light information is stored in a microprocessor I4 and a microprocessor II 5 simultaneously, when the information including the positions of traffic lights at each intersection, the display states (red, yellow and green) of the traffic lights at the moment, the countdown seconds and the like in all directions (advancing, waiting, turning left and turning right) normally work, the microprocessor II 5 is only used for monitoring the data sending condition of the microprocessor I4, when the condition that the data sent by the microprocessor I4 is abnormal is monitored, the crossroad red and green lights break down, the data are sent to a vehicle-mounted end by using the traffic light information prestored in the microprocessor II 5, a remote alarm module 3 is controlled to send alarm information to a traffic police command center of a public security bureau, the traffic police are prompted to start an emergency traffic light display mode at present, and the traffic safety problem caused by the fact that the crossroad red and green lights break down.
The third microprocessor 10 is used for receiving automobile position information sent by the GPS positioning module 12, and the third microprocessor 10 prestores the positions of traffic lights at each intersection, the display state of the signal lights at the moment, the countdown seconds and other information. When the third microprocessor 10 judges that the current vehicle is in a state of being close to the traffic light, and when the distance is smaller than D, the third microprocessor 10 controls the communication channel to be opened, and controls the vehicle-mounted traffic light display module 11 to display the current state of the traffic light. When the third microprocessor 10 judges that the vehicle is far away from the traffic light, the communication channel a is closed, data transmission is not carried out at the moment, and the vehicle-mounted traffic light display module 11 is closed.
Claims (3)
1.A mobile traffic light is characterized by comprising a crossroad red and green light signal sending module and a vehicle-mounted traffic light signal receiving module, wherein the crossroad red and green light signal sending module and the vehicle-mounted traffic light signal receiving module are arranged at the position of a crossroad red and green light;
the crossroad traffic light signal sending module comprises a first microprocessor (4), the output end of the first microprocessor (4) is connected with a crossroad traffic light signal display module (1), the output end of the first microprocessor (4) is connected with a first communication receiving module (8) through a first communication sending module (6), the vehicle-mounted traffic light signal receiving module comprises a first communication receiving module (8), the first communication receiving module (8) and a third microprocessor (10) mutually transmit information, the output end of the third microprocessor (10) is connected with a vehicle-mounted traffic light display module (11), and the input end of the third microprocessor (10) is connected with a GPS positioning module (12);
the input end of the first microprocessor (4) is connected with an infrared keyboard (2), the infrared keyboard (2) is used for re-inputting information, the output end of the first microprocessor (4) is connected with a second microprocessor (5), the second microprocessor (5) is used for controlling a remote alarm module (3) to send alarm information to a traffic police command center of a public security bureau, and the output end of the second microprocessor (5) is connected with a third microprocessor (10) through a second communication sending module (7) and a second communication receiving module (9);
the system comprises a first communication sending module (6), a second communication sending module (7) and a first communication receiving module (8), wherein the second communication receiving module (9) adopts an industrial Wi-Fi communication mode.
2. The mobile traffic light as claimed in claim 1, wherein the crossroad traffic light signal display module (1) is used for displaying the current crossroad traffic light state, the microprocessor one (4) is used for controlling the crossroad traffic light signal display module (1) and transmitting the current state to the communication receiving module one (8) through the communication sending module one (6), the communication receiving module one (8) transmits the received information to the microprocessor three (10), the microprocessor three (10) is used for controlling the vehicle traffic light display module (11) to display time, and the GPS positioning module (12) is used for transmitting the current position information to the microprocessor three (10).
3. A mobile traffic light according to claim 1, characterised in that the vehicle traffic light display module (11) is mounted in a rear position of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921674961.5U CN211124379U (en) | 2019-10-08 | 2019-10-08 | Mobile traffic light |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921674961.5U CN211124379U (en) | 2019-10-08 | 2019-10-08 | Mobile traffic light |
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| CN211124379U true CN211124379U (en) | 2020-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112509327A (en) * | 2020-12-06 | 2021-03-16 | 数源科技股份有限公司 | Intelligent traffic signal lamp linkage method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112509327A (en) * | 2020-12-06 | 2021-03-16 | 数源科技股份有限公司 | Intelligent traffic signal lamp linkage method |
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Granted publication date: 20200728 Termination date: 20211008 |