WO2010048740A1 - Traffic signal lamp control method in crossroad - Google Patents

Abstract

A traffic signal lamp control method in the crossroad is used to control the plural monitor devices with wire and /or wireless transmission function set on the crossroad. The devices monitor the come-and-go vehicles in each direction on given scope of crossroad. The traffic information detected by the monitor devices is sent to the controller unit such as a computer and to be processed. For example, the processing includes calculating the weight differences and the ratio relationship of the traffic information between all the directions of the road, and the weight values of the special vehicles. The foregoing values are regarded as the referenced ones. Based on said referenced values, the controller unit outputs the signal to the control box of the traffic signal lamp to change the traffic signal lighting mode, and automatically increases or decreases the green signal lighting seconds in the two different directions of the road relatively or quickly turn on the signal lamp for the special vehicles to pass through preemptively.

Description

 Crossroad traffic signal light control method

 The invention relates to a method for controlling a signal light, in particular to a method for controlling traffic light at an intersection. Background technique

 At present, traffic conditions in various regions, especially at intersections in urban areas, are almost always equipped with traffic lights to control traffic. Taking common crossroads as an example, it includes two intersecting roads in different directions, such as east-west roads and north and south. To the road, the roads in all directions contain two-way roads, such as east-west roads, including eastbound roads and westbound roads, and roads in all directions may include multi-lane roads such as two-lane roads or three-lane roads; and traffic lights at general crossroads are at least A two-way traffic signal comprising two different directions of roads, such as east-west and north-south roads, and utilizing the alternating current control mode of the traffic lights with a time difference between each other, such as an east-west road with a green light for 40 seconds and a north-south road with a red light 40 Seconds to alleviate the traffic flow on the east-west road. At this time, the vehicles on the north-south road stop; then switch to the east-west road for 40 seconds and the north-south road for 40 seconds to alleviate the traffic on the north-south road. When the east-west road vehicle stops, it does not move; In terms of lamps, in addition to the basic red, yellow and green lights, there are many other changes, such as the display of the remaining seconds before the change of lights in the red and green lights, the display of the number of seconds, for the driver to identify or prepare in advance, or another Increase the left/right turn indicator, etc.

The existing control method for traffic lights at intersections is generally based on the traffic conditions at the intersections, such as the traffic flow of the roads in different directions, and the control box attached to the traffic lights (using the electronic circuit and control) The switch or control button) sets a predetermined control mode for a round-robin action, and the predetermined control mode can basically set the second difference according to the commute time and the non-working time or the main road or the non-main road. For example, during commuting hours (such as 7:30 am to 9:00 am and 5 pm to 7:30 pm), the number of seconds for the main road to light green can be set longer than the non-trunk road to effectively alleviate the traffic flow of the main road. In non-working hours (such as 7:30 am to 9:00 am and 5 pm to 7:30 pm), the number of seconds for the main road to light green can be set equal to that of the non-main road; Traffic lights at intersections are automatically controlled according to the established control mode; when there are special conditions, such as traffic control or main road obstruction, traffic control personnel such as traffic Police to the scene and to open the control box artificially Controls mode, such as the control trunk to extend the number of seconds before the green light to the main road traffic mitigation. However, there are many intersections in a transportation network, and the traffic conditions at the intersections are always available. There may be changes, especially occasional special conditions such as fire trucks, ambulances, etc. that need to pass through the intersections quickly and easily. Therefore, the general control mode of existing intersection traffic lights can not meet the diversified needs of traffic control at intersections, and the limited traffic police can not always meet the traffic conditions and come to the site to open the control box at the right time. With the artificial control of traffic lights, it is currently only possible to select some of the more important intersections in the urban area, and specially dispatch personnel to control traffic during commuting hours. That is, the current control mode of traffic lights at intersections cannot be achieved. The best control effect of the traffic conditions at the intersection at that time can be met at any time. For example, the traffic conditions at the following intersections often occur:

 < 1 > When the number of vehicles (vehicle flow) in two different directions is too large, for example, there are 50 vehicles in one direction (waiting) and only 5 vehicles in the other direction (in running). There is a difference of 45 between the two, but the traffic signal still maintains the original control mode. For example, if the number of vehicles with only 5 vehicles remains at the green light for 40 seconds (that is, according to the set control mode) It will change the light, it will not only allow 5 cars to pass all the way, but also leave the green light for tens of seconds without car. According to the existing general control mode, the green light seconds will not be due to traffic conditions. (If the number of vehicles differs by more than 45), the number of seconds of the green light is automatically shortened to quickly change the light (ie, quickly turn yellow and then turn red), so that the traffic light in the other direction can be quickly turned into a green light simultaneously. In the other direction, 50 vehicles pass: Therefore, at least 50 vehicles are waiting for tens of seconds, gasoline waste and exhaust gas are relatively increased. In fact, when the above traffic conditions occur, the best control mode is to quickly and automatically shorten the number of green seconds of the traffic lights of only 5 vehicles to quickly change the lights (ie, quickly turn yellow and then turn red). The traffic lights in the other direction can be quickly and simultaneously turned into green lights for 50 vehicles in the direction.

<2> When the number of vehicles (vehicle flow) in two different directions is not much different, there may be a large number of vehicles (vehicle flow) in two different directions, such as 50 vehicles in one direction (waiting) In the other direction, there are 45 vehicles (in running), and the difference between the two is 5, and the ratio between them is 50/ 45=1. 11, which is closer to 1; It is also possible that the number of vehicles in one of the directions is only 1 to 5 (waiting), and there is no vehicle in the other direction. This is often the case in the middle of the night; the difference between the two is only 1 to 5 The vehicle is not large, and the ratio between the two is 1 ~ 5 / 0 = ∞ or 0 ~ 5 = 0, approaching infinity or equal to zero (ie away from 1), but the traffic signal remains intact. Control mode (that is, according to the set control mode), if there is no vehicle passer, it will remain light after 40 seconds of green light seconds; that is, according to the existing general control mode, it will not be due to the time Traffic conditions (such as only 1 to 5 cars and no car in one direction) The number of seconds the green light to Quickly turn into a yellow light and turn into a red light, so that the traffic light in the other direction can be quickly turned into a green light for the vehicle to pass; therefore, at least 1-5 vehicles are required to wait for tens of seconds, gasoline waste and The exhaust gas is relatively increased. In fact, when the above traffic conditions occur, that is, the difference between the two is not large, but the proportional value approaches infinity (or even small and approaches zero), that is, away from 1, the best control mode is Quickly and automatically shorten the number of seconds of green light of a traffic light without a vehicle to quickly change the light (ie, quickly turn yellow and then turn red), so that the traffic light in the other direction can quickly change to a green light for the direction. Vehicle traffic.

 < 3 > In particular, when special vehicles such as fire engines, ambulances, etc. appear in vehicles in two different directions, the traffic lights currently used are generally unmanageable except for the fact that there are just traffic controllers on the scene for human control. Change the traffic signal mode to quickly open special vehicles to give priority to traffic, and at this time, the vehicle in front of the road often does not know that the special vehicles that have to pass quickly are waiting for the lanes to be allowed to exit, especially when the roads in the direction are met again. When I get to the red light, I don’t know how to make the road. It often causes the delay of the special vehicles or the danger of intersections, so that the traffic at the intersection can not be automatically and automatically controlled and monitored when unmanned, and it is impossible to reach an emergency. High efficiency traffic control effect.

 It can be seen from the above that the traffic lights used at intersections are not able to obtain vehicle data in all directions by monitoring, such as the difference between the vehicles in each direction, the proportional relationship or the presence of special vehicles, etc., to automatically control the traffic lights. Light-on mode, such as automatic relative increase or decrease, the number of seconds of green light on the road in different directions (travel time) or the rapid opening of special vehicles, etc.; and when the traffic conditions at the intersection cannot be effectively controlled, the other will be derived. The problem, such as when the traffic is blocked, the gasoline is relatively wasted, the exhaust gas is relatively increased, and the time is wasted, which does not meet the energy conservation and environmental protection requirements currently implemented. The invention provides an intelligent automatic monitoring method for traffic at intersections and traffic lights thereof, so as to solve the problems and shortcomings that cannot be overcome by existing intersection traffic lights. Summary of the invention

 The main object of the present invention is to overcome the above-mentioned shortcomings of the prior art, and to provide a method for controlling traffic light at an intersection, so that the traffic signal can be used as a reference value for the number of vehicles and/or weights of the vehicles on the road in all directions at the intersection. According to the reference values, the traffic signal mode is automatically adjusted, such as automatically increasing or decreasing the transit time in each direction, so that the traffic signal at the intersection can be automatically and automatically monitored and monitored when unmanned.

In order to achieve the above object, the present invention provides an intersection traffic signal light control method, which is a monitoring device for an intersection setting array having wired and/or wireless transmission functions for monitoring The vehicles in and out of the roads in a certain range of intersections, such as detecting and recognizing data such as the number of vehicles waiting or traveling in various directions or the speed of the vehicle, and forming vehicle data weights; and transmitting the above-mentioned vehicle data obtained by each monitoring device To a control unit such as a computer device for processing, such as calculating a phase difference or a proportional relationship of vehicle data weights of roads in each direction as a reference value; and according to the reference values, the control unit outputs a signal to the traffic signal The control box changes the traffic light mode by manipulating, such as quickly switching to an emergency control mode or automatically increasing or decreasing the number of green light seconds (ie, transit time) of two different directions according to the reference value, so that the traffic at the intersection is not present. When people control, they can effectively automate monitoring and management, and further achieve energy-saving, environmental protection, time-saving and emergency traffic.

 In order to achieve the above object, the present invention also provides an intersection traffic signal light control method, wherein the monitoring device can further obtain an interaction function with a global satellite positioning system (GPS) and/or a wireless transceiver system in the vehicle. The vehicle data of the intersection vehicle is simultaneously transmitted to the control unit and then incorporated into the processing to improve the efficiency of the monitoring device to obtain the vehicle data to achieve a high efficiency traffic control effect.

 In order to achieve the above object, the present invention also provides an intersection traffic signal light control method, wherein the monitoring device can further set a weighting for special vehicles such as fire trucks, ambulances, etc., in which priority crossings must be quickly and quickly passed through intersections. Value, so that when the control unit senses the special vehicle weight value, it quickly opens the special vehicle priority passage, etc., so that the traffic at the intersection can be automatically and automatically monitored and monitored when unmanned, and the above-mentioned The vehicle data is transmitted to the control unit and then incorporated into the process to achieve an efficient traffic control effect for emergency traffic.

 In order to achieve the above object, the present invention also provides an intersection traffic signal light control method, which can further utilize a built-in wireless transceiver system of a special vehicle such as a fire truck or an ambulance to output signals to a monitoring device or a control unit or a traffic signal. Control box, to change the traffic signal mode to quickly open special vehicles, and to set special lights on the traffic lights to further light the special lights that special vehicles must give priority to drive other vehicles The person can get out of the lane according to the knowledge, so that the traffic at the intersection can be automatically and automatically monitored and managed when unmanned control, and the emergency traffic control effect is achieved.

In order to achieve the above object, the present invention also provides an intersection traffic control method, wherein the control method is further applicable to a regional traffic signal system including a plurality of intersections, so that a plurality of relevant intersections in a region Traffic lights can be wired or wirelessly connected to effectively alleviate traffic congestion in the area, enabling automatic monitoring of traffic lights at several relevant intersections in the same area. The utility model has the beneficial effects that: the traffic signal light can be used as a reference value for the number of vehicles passing through the road in all directions of the intersection, and/or the weighting value, etc., and automatically adjusts the traffic signal mode according to the reference values, such as automatic relative increase and decrease. The traffic time in all directions, so that the traffic lights at the intersections can be automatically and effectively monitored and managed when unmanned, and at the same time, the traffic is blocked, the gasoline is relatively wasted, the exhaust gas is relatively increased, and the time is wasted. DRAWINGS

 1 is a schematic view showing an embodiment of a monitoring device of the present invention disposed at an intersection;

 2 is a schematic view showing another embodiment of the monitoring device of the present invention disposed at an intersection;

 3 is a schematic diagram of an embodiment of a monitoring method of the present invention applied to a regional traffic signal system including a plurality of intersections.

 DESCRIPTION OF REFERENCE NUMERALS: 1-intersection; 10-road; 2 traffic lights; 20-control box; 3-monitoring device; 4-control unit; 5-area traffic signal system. detailed description

 The above and other technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings. As shown in FIG. 1 and FIG. 2, the present invention is an intersection traffic signal light control method, which provides a smart automatic control method for a traffic signal 2 of an intersection 1, and the traffic signal 2 is at least The traffic light of the traffic signal 2 can be automatically adjusted according to the number of vehicles passing in the direction of the intersection 1 in order to effectively alleviate the traffic jam at the intersection and achieve a smooth traffic, and reach an intersection. The automatic monitoring effect of traffic lights when unmanned.

The control method of the present invention is that the monitoring device 3 having the wired and/or wireless transmission function of the array is respectively disposed at a proper position within a certain range of the intersection 1 as shown in FIG. 1 and can be set at a higher position beside the road or set at As shown in FIG. 1 , the monitoring device 3 is provided with an image reading lens for image reading function and can have an image recognition function, which can be used to monitor the intersection. The passing vehicles on the roads 10 in all directions in a certain range area of 1 to simultaneously acquire relevant vehicle data, which can be simultaneously converted into vehicle data weights (digital data) for transmission to a control unit having an arithmetic function 4 If the computer device is processing, such as automatically detecting at any time or automatically detecting and identifying vehicle data in a certain range of roads in each direction at a set interval, such as every 5 seconds, the vehicle data includes: The number of vehicles or the number of vehicles in motion and their speed, etc., and converted into vehicle data weights (digital data) for control unit 4 to perform Management and transportation Count.

 A control unit 4 having an arithmetic function, such as a computer device, is used to process and calculate the vehicle data weights input by the respective monitoring devices 3, such as calculating the difference value, the proportional relationship between the vehicle data weights of the roads in each direction, or The weighting value of the special vehicle or the like is taken as a reference value; according to the reference values, the control unit 4 outputs a signal to the control box of the traffic signal 2 to manipulate the change traffic light mode to automatically increase or decrease the two different directions. The green light lighting time (travel time), such as automatically increasing or decreasing the number of green light seconds (passing time) in two different directions according to the reference value, or switching to an emergency control mode, or quickly opening special vehicles to pass.

 For the above-mentioned way of changing the traffic light mode according to the reference value, the green light-on time (passing time) of the road in the direction of the relative increase or decrease is further described as follows:

 One of the feasible ways is: a limit value can be set according to the difference or proportional relationship between the vehicle data weights of the roads in each direction; the number of vehicles on the road 10 in two different directions (as the vehicle data weight) In terms of the difference value (the proportional relationship between the vehicle speed data or the weight value is not incorporated into the calculation), for example, the number of waiting vehicles on the one-way road 10 is 0 (indicating that the traffic flow is unobserved without waiting for the vehicle), and on the other road 10 Waiting for the number of vehicles is 20 (indicating that there are 20 waiting vehicles in the traffic jam, the difference is 20 - 0 = 20; and the control unit 4 can first set a limit value, here fixed setting a difference The value limit value is an example, such as setting the difference limit value to 20 (vehicles) or more during a busy period (such as the off-hours period), and the difference may be set during a non-busy period (such as a non-shift period). The limit value is set to 15 (vehicle) or below, and the control unit 4 can process whether the phase difference value of the number of waiting vehicles in each direction road 10 exceeds the difference limit value to determine whether to start the control to change the traffic. The light control mode of the signal light 2; the control unit 4 is connected to the control box 20 of the traffic light 2 of the intersection 1, and can output a start signal to the control box 20 to control the start of the control box 20. To control the lighting control mode of the traffic light 2, such as quickly switching to an emergency control mode, or relatively increasing or decreasing the number of green light seconds (ie, transit time) of two different directions according to the proportional relationship between the weights, For example, the number of green light seconds for which the number of waiting vehicles is larger is increased, that is, the number of green light seconds for which the number of waiting vehicles is smaller is relatively shorter.

Further, the limit value set as described above, such as the difference limit value, is not limited to being fixedly set to a limit value based on the phase difference value of the vehicle data weight (such as the number of vehicles) on the road 10 in the two different directions, the setting. The limit value may also change the set limit value according to the proportional relationship between the vehicle data weights (such as the number of vehicles) on the road 10 in two different directions, that is, the set limit value is not a fixed value. The limit value may be changed at any time according to different traffic conditions, that is, the change and the proportional relationship of the vehicle data weights detected by the roads in two different directions may change at any time to form a floating set limit value. Love The need for intelligent control mode, for example: The vehicle data weights (such as the number of vehicles) in two different directions are not much different but have different traffic conditions, including 60 vehicles in one direction and the other in the other direction. There are 55 vehicles on the road, and the difference is 5 (or the difference between the weights is 5). It is not large. There are 5 vehicles in one direction and no vehicles in the other. The difference is also 5 (or the weight difference is 5) It is not large, but the difference is 5 (or the difference of the weights is 5), but the traffic conditions are different; therefore, if the difference between the vehicle data weights (such as the number of vehicles) is the only factor that sets the limit value and In order to change the control mode of the traffic signal 2, it may not be sufficient to meet the needs of various control modes of the traffic signal 2. Therefore, the present invention further proposes a floating setting limit value mode, and at the same time, vehicle data. The difference and proportional relationship between the weights are taken into account, so that the control mode of the traffic signal 2 is more comprehensive. For example, the difference and proportional relationship between the vehicle data weights can be taken as the reference. Value and the reference value according to the changes in two different directions relative to the road green seconds (i.e. transit time).

In use, the control unit 4 can be used as a reference value according to the reference values, such as the difference value between the vehicle data weights of the roads in each direction, the proportional relationship, or the weight value of the special vehicle, etc., and is output by the control unit 4 Signal to the control box of the traffic signal to control the change of the traffic light mode to relatively increase or decrease the green light-on time (travel time) of the road in two different directions, such as: when the control unit 4 detects that the intersection of the two different directions of the road 10 is waiting When the difference between the number of vehicles is below the limit value, the control unit 4 does not output a start signal to the control box 20, and the traffic light 2 of the intersection 1 is still controlled according to the original set state. The tube mode is performed; and when the control unit 4 detects that the phase difference value has exceeded or equals the limit value, indicating that the number of waiting vehicles in one direction has exceeded the other direction and causes a blockage, the control unit 4 outputs A start signal is sent to the control box 20 of the traffic light 2, and the control box 20 controls the change of the control mode of the traffic light 2, such as: To an emergency control mode, or to increase or decrease the number of green light seconds (ie, transit time) of two different directions according to the difference and proportional relationship between the weights, such as increasing the number of seconds of green light waiting for more vehicles; That is, the number of green light seconds for which the number of waiting vehicles is smaller is relatively shortened. It automatically switches from the normal state control mode to other state control mode, so that the number of hours (light transit time) of the traffic lights in two different directions is relatively increased or decreased, such as the original normal state control mode is to make two different directions The red and green lights can be turned on for 40 seconds in turn to complete an 80-second interactive lighting cycle, that is, the red and green lights in each direction turn on for 40 seconds (in which the yellow light seconds can be added); and other state control modes include : The green light (travel time) of the one-way road in which the number of waiting vehicles is relatively large is more than 40 seconds, for example, the green light seconds are increased to 70 seconds, and the red light seconds are relatively less than 40 seconds, for example, shortened to 20 seconds. , and complete a 90 second lighting cycle, that is, waiting in each lighting cycle The green light (travel time) of a road with a relatively large number of vehicles may be as long as 70 seconds and the red light seconds may be only 20 seconds; then, one or more control modes of the above control mode may be changed. The traffic jam at the intersection 1 is effectively alleviated, and the automatic monitoring effect when the unmanned control is achieved is achieved.

 Briefly, the present invention changes the traffic light mode according to the reference value, and is used to relatively increase or decrease the green light-on time (travel time) of the roads in two different directions, that is, when the vehicle data weight of one direction road is greater than another When the vehicle data weight of the road is directional, the green light-on time of the road with a larger vehicle data weight may be relatively increased; and the increase of the green light-on time of the road with the larger vehicle data weight may be based on each direction. The difference between the weights of the vehicle data of the road is proportionally increased; and when the difference between the vehicle data weights of the roads in each direction is not equal to 0, and the proportional relationship between the vehicle data weights is 0 or infinity When large, this means that the vehicle data weight of one of the directional roads is 0 (no vehicle), and the traffic signal can be changed immediately, so that the traffic light of the road with the vehicle data weight is immediately converted into the green light lighting mode.

 Further, at least one (ie one or more) emergency control mode, such as a first emergency state control mode or a second emergency state control mode, may be preset for the control box of the traffic light 2, and each emergency state control The tube mode is to increase or decrease the green light-on time (travel time) for two different directions of roads. For example, the green and red light relative lighting time ratio of the first emergency state control mode is set to 50 seconds: 30 seconds, and the green and red light relative lighting time ratio of the second emergency state control mode is set to 60 seconds: 20 seconds to form one or more different emergency state control modes; in other words, the present invention is based on the reference value By changing the traffic signal mode by operation, the amount of time for the green light-on time (travel time) of the two different directions of the road may be increased or decreased, that is, the green light-on time of the road with the larger vehicle data weight value The increase amount may be proportionally increased according to the difference between the vehicle data weights of the roads in each direction; or may be a segment change, that is, the number of vehicles The amount of increase in the green light-on time of the road having a larger weight may automatically select one of the emergency state control modes in the at least one (ie, one or more) depending on the magnitude of the difference, such that The increase of the green light-on time of the road with a larger vehicle data weight is controlled according to the green and red light relative lighting time that has been set in the selected emergency state control mode.

In the intersection traffic signal control method of the present invention, the relevant vehicle data obtained by the monitoring device 3 can be converted into vehicle data weight (digital data) by the monitoring device 3, or transmitted to a control function. The unit 4 is converted into vehicle data weights (digital data) by the control unit 4 and processed, that is, the relevant vehicle data obtained by the monitoring device 3 can be determined according to the system function of the monitoring device 3 or the control unit 4 used. And set the data conversion program by itself; The conversion of image data (analog signals) into vehicle data weights (digital data) can be achieved using current electronic technology, and therefore will not be described here.

 The state of use of the present invention will be explained one by one by the following selling examples:

 <First Embodiment>

 The intersection traffic signal control method of the embodiment includes the following steps:

 A range of roads in each direction of an intersection is used as a monitoring area;

 The array monitoring device 3 is used to automatically detect and recognize vehicle data such as the number of vehicles waiting for or running in the monitoring range area of the road 10 in each direction of the intersection 1, and to form vehicle data weights, and the resulting data is obtained. The vehicle data weight is output to a control unit 4;

 The vehicle data weights of the roads 10 in each direction input by the respective monitoring devices 3 are processed by the control unit 4, and the relationship between the vehicle data weights of the roads in each direction is further detected and calculated as a reference value;

 Further, according to the aforementioned reference value, the control unit 4 outputs a control signal to the control box 20 of the traffic light 2 to manipulate the lighting mode of the traffic light 2 to relatively increase or decrease the green lighting time of the roads in different directions.

 When the vehicle data weight of the one-way road is greater than the vehicle data weight of the road of the other direction, the green light-on time of the road with the larger vehicle data weight may be relatively increased.

 The manner of relatively increasing the green light-on time of the road with the greater vehicle data weight may include various manners, such as: when the control unit 4 detects the difference between the vehicle data weights of the roads 10 in the different directions of the intersection 1 When the value is lower than a difference value, the control unit 4 does not output a start signal to the control box 20 of the traffic light 2 of the intersection 1, and the traffic light 2 continues to be in accordance with the originally set normal state control mode. Performing a lighting cycle control; when the control unit 4 detects that the phase difference of the vehicle data weights of the roads 10 in the different directions of the intersection 1 has exceeded or equals a difference value, the control unit 4 outputs a start signal to the traffic. The control box 20 of the signal lamp 2 automatically switches to another state control mode by operating the traffic signal 2 to relatively increase or decrease the transit time of the road in two different directions, such as increasing the number of green seconds of waiting for more vehicles, that is, relatively shortening The number of green light seconds waiting for the smaller number of vehicles; when the control unit 4 detects the vehicle data rights of the road 1 in the different directions of the intersection 1 When the difference value and the difference is reduced to a limit value or less, the control unit 4 outputs a start signal to the no traffic lights of the control box 202, the traffic light 2 is automatically returned to the normal state modeling to the original set.

In this embodiment, the monitoring device 3 and the control unit 4 are used, and the green light-on time (ie, the transit time) of the roads 10 in different directions is relatively increased or decreased according to the reference value, such as the weight value relationship, so that it can be regarded as a kind of Stepless intelligent control mode <

 In this embodiment, the inspection

In the step, the relationship between the vehicle data weights may further include a difference between the vehicle data weights of the roads in each direction, wherein the green light lighting time of the road with the larger vehicle data weight may be increased. It is proportionally increased according to the magnitude of the difference between the vehicle data weights.

 In the embodiment, in the step of detecting and calculating the relationship between the vehicle data weights of the roads in the respective directions, the relationship between the vehicle data weights further includes the ratio between the vehicle data weights of the roads in the respective directions. Relationship, wherein when the ratio between the vehicle data weights of the roads in each direction is 0 or infinite, the traffic signal of the road having the vehicle data weight can be immediately converted into the green lighting mode.

 In this embodiment, the emergency state control mode of at least one traffic signal light may be preset in the control box 20 of the traffic signal 2, and each emergency state control mode is opposite to the green light-on time of each different direction road. Increasing or decreasing a different amount of time, so that the control unit can output a control signal to the control box of the traffic signal according to the reference value, and select one of the emergency state control modes to control the lighting mode of the traffic light 2 to be relatively increased. The green light-on time of the roads 10 in different directions is reduced; that is, the relative increase and decrease of the green light-on time is pre-divided into a plurality of emergency state control modes, so that the embodiment is controlled by a stepless intelligent control mode. Choose to convert to a segmented smart control mode.

 Further, for the phase difference between the vehicle data weights of the roads 10 in each direction, a difference value may be preset to enable the control unit 4 to detect that the difference between the vehicle data weights of the roads in each direction is greater than or equal to When the difference value is defined, the control unit 4 may output a control signal to the control box of the traffic signal to control the lighting mode of the traffic light 2 to increase or decrease the green light time of the roads in different directions; that is, when the difference is When it is greater than or equal to the difference limit value, the operation starts to relatively increase or decrease the green light-on time of the roads in different directions, that is, further selects a stepless intelligent control that controls the pipe beyond the difference limit value. Tube mode.

 The control method of the embodiment is further applicable to the regional traffic signal system 5 including a plurality of intersections, as shown in FIG. 3, so that the traffic lights 3 of the plurality of relevant intersections in a region can be connected by wire or wirelessly. Line use.

In the control method of the embodiment, the monitoring device 3 can further pass the global satellite positioning system (GPS) and/or the wireless transceiver system installed in the vehicle to enable the vehicle to enter the monitoring range. In the meantime, the vehicle data can be automatically transmitted to the monitoring device 3, so that the monitoring device 3 can actively and quickly obtain the vehicle data of the vehicle at the intersection at the time, and then The vehicle data is transmitted to the control unit 4. That is, the global satellite positioning system (GPS) currently installed in the vehicle is used, and a wireless transceiver system capable of interacting with the monitoring device 3 is configured, when the vehicle enters the monitoring range of the monitoring device 3 provided at an intersection 1 The vehicle data can be automatically transmitted to the monitoring device 3, that is, the monitoring device 3 can quickly acquire the vehicle data of the vehicle at the intersection at that time through the GPS system (Global Positioning System) and/or the wireless transceiver system installed in the vehicle. The vehicle data described above is then transmitted to the control unit 4 for incorporation processing.

 In the control method of the embodiment, when a special vehicle such as a fire truck or an ambulance enters the monitoring range, the special vehicle can automatically transmit the vehicle data to the monitoring device 3, and the monitoring device 3 Further, a weighting value may be set for the special vehicle, so that when the control unit 4 senses the weight value of the special vehicle, the control unit 4 may output a start signal to the control box 20 of the traffic signal 2 to control the change of traffic. The lighting mode of the signal lamp 2 is used to quickly open the special vehicle priority; that is, when the control unit 4 senses the weighting value of the special vehicle, the control unit 4 can output a start signal to the control box 20 of the traffic signal 2 The lighting mode of the traffic light 2 is changed by manipulating to open the special vehicle priority traffic to achieve an efficient traffic control effect of emergency traffic.

 <Second embodiment>

 The intersection traffic signal control method of the embodiment includes the following steps:

 A range area of the road 10 in each direction of an intersection is used as a monitoring range area;

 The array monitoring device 3 is used to automatically detect and identify vehicle data such as the number of vehicles waiting for or running in the monitoring range area of the road 10 in each direction of the intersection, and form vehicle data weights, and the resulting data is obtained. The vehicle data weight is output to a control unit 4;

 The control unit 4 processes the vehicle data weights of the roads in each direction input by the monitoring devices 3, and further detects and calculates the phase difference between the vehicle data weights of the roads in each direction as a reference value;

 According to the foregoing reference value, the control unit 4 outputs a control signal to the control box 20 of the traffic signal 2 to manipulate the lighting mode of the traffic light 2 to relatively increase or decrease the green light-on time of the roads in different directions.

 Wherein, when the vehicle data weight of the one-way road is greater than the vehicle data weight of the road of the other direction, the green light-on time of the road with the larger vehicle data weight may be relatively increased; and the vehicle data weight is larger The increase in the green light-on time of the road is proportional to the magnitude of the difference between the vehicle data weights of the roads in each direction.

In this embodiment, the monitoring device 3 and the control unit ⁴ are utilized, and only the phase difference values in the reference values are used. Relatively increase or decrease the green light-on time (ie, transit time) of the roads in different directions, that is, a stepless intelligent control mode that increases the green light-on time by proportionally based on the magnitude of the difference, which is The main difference of the first embodiment is that the present embodiment selects the case where the proportional relationship between the vehicle data weights of the roads 10 in each direction is 0 or infinite (ie, no car in one direction), and is simply designed to be only According to the magnitude of the difference, the green light-on time of the roads in different directions is relatively increased or decreased, so that it can be regarded as a simplified and simple segmentless intelligent control mode of the first embodiment.

 <Third embodiment>

 The intersection traffic signal control method of the embodiment includes the following steps:

 A range area of the road 10 in each direction of an intersection is used as a monitoring range area;

 The array monitoring device 3 is used to automatically detect and identify vehicle data such as the number of vehicles waiting for or running in the monitoring range of the road 10 in each direction of the intersection and to form vehicle data weights; and can be installed in the vehicle. a wireless transceiver system capable of interacting with the monitoring device 3, when the vehicle enters the monitoring range, the vehicle data can be transmitted to the monitoring device; and the special vehicle that needs to pass through the intersection quickly can be set Special vehicle data weights, and the obtained vehicle data weights are output to the control unit 4;

 The control unit 4 processes the vehicle data weights of the roads input by the respective monitoring devices, and further detects and calculates the phase difference and the proportional relationship between the vehicle data weights of the roads in each direction, as a reference value. ;

 According to the reference values, the control unit 4 outputs a control signal to the control box 20 of the traffic signal 2 to control the lighting mode of the traffic light 2 to relatively increase or decrease the green lighting time of the road in two different directions;

 Wherein, the increase of the green light-on time of the road with the greater vehicle data weight is proportionally increased according to the difference between the vehicle data weights of the roads in each direction; and the vehicle of each direction of the road 10 When the phase difference between the data weights is not equal to 0, and the proportional relationship between the vehicle data weights is 0 or infinity, the traffic light 2 of the road with the vehicle data weight can be immediately converted into the green light lighting mode; When the monitoring device 3 or the control unit 4 or the control box 20 of the traffic signal 2 detects that a special vehicle enters the intersection, the traffic signal mode can be changed to enable the traffic signal 1 to automatically change its emergency control mode. At that time, the traffic light 2 of the road in the direction of the special vehicle was immediately changed to the green light state, and the special vehicle was opened for priority.

In this embodiment, the monitoring device 3 and the control unit 4 are used, and the magnitude and the proportional relationship (whether 0 or infinity) of the reference value according to the reference value (weight) relationship are different in relative increase and decrease. The green light of the directional road lights up (travel time), and at the same time, the vehicle data is automatically transmitted to the monitoring device through the GPS and/or wireless transceiver system in the vehicle, and the control unit can output when the control unit senses the weight value of the special vehicle. A start signal is sent to the control box 20 of the traffic light 2 to manipulate the lighting mode of the traffic light 3 to open the special vehicle priority. Therefore, the main difference between this embodiment and the first embodiment is that the present embodiment simultaneously The setting increases the functions of automatically transmitting vehicle data to the monitoring device by the vehicle and opening the special vehicle priority to form a stepless control mode with the above two functions.

 <Fourth embodiment>

 The intersection traffic signal control method of the embodiment includes the following steps:

 A range of roads 10 in each direction of an intersection is used as a monitoring range area;

 The array monitoring device 3 is used to automatically detect and identify vehicle data such as the number of vehicles waiting for or running in the monitoring range area of the road in each direction of the intersection and to form vehicle data weights; and to install the vehicle data through the special vehicle. The wireless transceiver system interacting with the monitoring device 3 enables the special vehicle data to be automatically transmitted to the monitoring device 3 when the special vehicle enters the monitoring range area, or directly transmitted to the control unit 4 or the control of the traffic signal 2 Box 20;

 When the monitoring device 3 (or the control unit 4 or the control box 20 of the traffic light 2) detects that a special vehicle enters at the intersection, the traffic signal mode can be changed to enable the traffic signal to automatically change its emergency control mode so that At that time, the traffic light 2 of the road in the direction of the special vehicle was immediately changed to the green light state, and the special vehicle was opened for priority.

 In this embodiment, the monitoring device 3 and the control unit 4 are utilized, and only the monitoring device 3 (or the control unit)

4) When sensing the weighting value of the special vehicle, the control unit 4 can output a start signal to the control box 20 of the traffic signal 2 to control the lighting mode of the traffic light 2 to open the special vehicle priority access; The main difference between the embodiment and the foregoing first to third embodiments is that the present embodiment selects the size difference or the proportional relationship between the vehicle data weights of the roads 10 in different directions, and is simply designed to be based only on the weight of the special vehicle. The value is the control to change the lighting mode of the traffic light 2 to immediately open the control mode of the special vehicle priority passage, that is, the embodiment only controls the special vehicle, that is, the special vehicle can automatically transmit the special vehicle data to The monitoring device 3 is configured to immediately change the traffic light 2 of the road in which the special vehicle is located to the green light state to open the special vehicle priority; that is, the fourth embodiment is specifically for the special priority to quickly pass through the intersection 1 Vehicles such as fire trucks, ambulances, etc., are specially set up to quickly change the control mode of traffic lights 2 That is, when the monitoring range of the special vehicle 3 enters a monitoring device is provided an intersection, the transmission automatically The special vehicle data can be directly controlled by the special vehicle data to the monitoring device 3 or the control unit 4 or the control box 20 of the traffic light 2 to change the traffic light mode to quickly open the special vehicle priority passage, that is, the special vehicle is automatically transmitted to the monitoring device 3 or The special vehicle data of the control unit 4 or the traffic light control box 20 is the first priority, and the skip control unit 4 detects the vehicle data weights of the roads 10 in the different directions of the intersection 1 or the difference between them or the weight of the special vehicle. The program directly changes the traffic signal mode to an emergency state control mode to quickly open special vehicles for priority access.

 Further, in the control method of the embodiment, a special signal can be disposed on the traffic signal 2 to indicate that a special vehicle must be preferentially accessed, and other vehicle drivers at the intersection can learn the information according to the information. The driving lane is further provided with a display subtitle such as an LED display subtitle on the traffic signal 2 to indicate that there is a special vehicle to be prioritized, and other vehicle drivers for the intersection can know the information accordingly. Let out the driveway.

 The above are only the preferred embodiments of the present invention, and are merely illustrative and not restrictive. It will be understood by those skilled in the art that many changes, modifications, and equivalents may be made without departing from the spirit and scope of the invention.

Claims

Rights request  A method for controlling traffic light at an intersection, which is a traffic signal for controlling an intersection, characterized in that it comprises the following steps:  A range of roads in each direction of an intersection is used as a monitoring area;  The array monitoring device is used to automatically detect and identify the number of vehicles waiting or traveling or the vehicle speed data in the monitoring range area of the road in each direction of the intersection, and form a vehicle data weight, and the obtained vehicle data weight Transmitted to a control unit;  Using the control unit to process the vehicle data weights of the roads input by the respective monitoring devices, and further detecting and calculating the relationship between the vehicle data weights of the roads in each direction as a reference value;  And according to the reference value, the control unit outputs a control signal to the control box of the traffic signal to control the lighting mode of changing the traffic signal to relatively increase or decrease the green light-on time of the roads in different directions, wherein the road is one direction When the vehicle data weight is greater than the vehicle data weight of the road in the other direction, the green light-on time of the road with the vehicle data weight is relatively increased.  2. The method of controlling an intersection traffic signal according to claim 1, wherein in the step of detecting and calculating a relationship between the vehicle data weights of the roads in each direction, the vehicle data weight is The relationship further includes a phase difference between the vehicle data weights of the roads in each direction, wherein the increase in the green light-on time of the road with the vehicle data weight is based on the difference between the vehicle data weights of the roads in each direction The size of the value increases proportionally.  3. The method of controlling an intersection traffic signal according to claim 1, wherein in the step of detecting and calculating the relationship between the vehicle data weights of the roads in each direction, the vehicle data weight The relationship further includes a proportional relationship between the vehicle data weights of the roads in each direction, wherein when the ratio between the vehicle data weights of the roads in each direction is 0. or infinity, the road having the vehicle data weight will be The traffic signal immediately switches to the green light mode.  4. The method for controlling an intersection traffic signal according to claim 1, wherein the emergency state control mode of at least one traffic signal is preset in a control box of the traffic signal, and each emergency state control mode The green light-on time for each different direction road is relatively increased or decreased by a different amount of time, so that the control unit outputs a control signal to the control box of the traffic signal according to the reference value to select one of the emergency state control modes to control Change the traffic light mode to increase or decrease the green light time of the roads in different directions. 5. The method of controlling an intersection traffic signal according to claim 2, wherein: Determining a difference value for the difference between the vehicle data weights of the roads in each direction; causing the control unit to detect that the difference of the vehicle data weights of the roads in each direction is greater than or equal to the difference value When the value is limited, the control unit outputs a control signal to the control box of the traffic signal to control the change of the traffic light lighting mode to relatively increase or decrease the green light-on time of the roads in different directions.  6. The method of controlling an intersection traffic signal according to claim 1, wherein the control unit is a computer device.  7. The method of controlling an intersection traffic signal according to claim 1, wherein the control method is further used in a regional traffic signal system including a plurality of intersections, such that a plurality of related intersections in a region Traffic lights at intersections can be wired or wirelessly connected.  8. The method of controlling an intersection traffic signal according to claim 1, wherein the monitoring device further passes through a global satellite positioning system and/or a wireless transceiver system installed in the vehicle to enable the vehicle to enter the monitoring range. That is, the vehicle data is automatically transmitted to the monitoring device, so that the monitoring device acquires the vehicle data of the vehicle at the intersection at that time, and then transmits the vehicle data to the control unit.  9. The method for monitoring an intersection traffic signal according to claim 8, wherein when the special vehicle enters the monitoring range, the special vehicle automatically transmits the vehicle data to the monitoring device, and the monitoring device Further, a weighting value is set for the special vehicle, so that when the control unit senses the weight value of the special vehicle, the control unit outputs a start signal to the control box of the traffic signal to control the change of the traffic light lighting mode to open The special vehicle is preferred.  10. A method for controlling traffic light at an intersection, which is a traffic signal for controlling an intersection, characterized in that it comprises the following steps:  A range of roads in each direction of an intersection is used as a monitoring area;  The array monitoring device is used to automatically detect and identify the number of vehicles waiting or traveling or the vehicle speed data in the monitoring range area of the road in each direction of the intersection, and form the vehicle data weight, and obtain the obtained vehicle data right. The value is input to a control unit;  Using the control unit to process the vehicle data weights of the roads in each direction input by each of the monitoring devices, and further detecting and calculating the phase difference values between the vehicle data weights of the roads in each direction as a reference value; And according to the reference value mentioned above, the control unit outputs a control signal to the control box of the traffic signal to control the lighting mode of changing the traffic signal to relatively increase or decrease the green light-on time of the roads in different directions, wherein when the road is in a direction When the vehicle data weight is greater than the vehicle data weight of the road in the other direction, Relatively increasing the green light-on time of the road with the vehicle data weight value;  The increase amount of the green light-on time of the road with the large vehicle data weight is proportionally increased according to the magnitude of the difference between the vehicle data weights of the roads in each direction.  11. A method for controlling traffic light at an intersection, which is a traffic signal for controlling an intersection, characterized in that it comprises the following steps:  A range of roads in each direction of an intersection is used as a monitoring area;  Using an array monitoring device to automatically detect and identify the number of vehicles waiting or traveling in the monitoring range area of the intersection in each direction of the intersection and to generate vehicle data weights; and to install and monitor the vehicle through the vehicle a wireless transceiving system in which the device interacts, even if the vehicle data is transmitted to the monitoring device when the vehicle enters the monitoring range; and a special vehicle data weight is set to be preferentially fast through the special vehicle at the intersection, And outputting the obtained vehicle data weight to the control unit;  Using the control unit to process the vehicle data weights of the roads input by the respective monitoring devices, and further detecting and calculating the phase difference and the proportional relationship between the vehicle data weights of the roads in each direction, for reference. Value  And according to the reference values, the control unit outputs a control signal to the control box of the traffic signal to control the lighting mode of changing the traffic signal to relatively increase or decrease the green lighting time of the road in two different directions;  Wherein, the increase of the green light-on time of the road with a large vehicle data weight is proportionally increased according to the difference between the vehicle data weights of the roads in each direction;  Wherein, when the phase difference between the vehicle data weights of the roads in each direction is not equal to 0, and the proportional relationship between the vehicle data weights is 0 or infinity, the traffic lights of the roads with the vehicle data weights are immediately converted. Lighting mode for green light;  Wherein, when the monitoring device or the control unit or the control box of the traffic signal detects that a special vehicle enters at the intersection, that is, the traffic signal mode is changed to enable the traffic signal to automatically change its emergency control mode to The traffic signal light of the road in the direction of the special vehicle at that time was immediately changed to the green light state, and the special vehicle was preferentially opened.  12. A method for controlling traffic light at an intersection, which is a traffic signal for controlling an intersection, and comprising the following steps:  A range of roads in each direction of an intersection is used as a monitoring area; Using an array monitoring device to automatically detect and recognize the monitoring of roads in all directions of the intersection at any time The number of vehicles waiting or traveling in the range area and the vehicle speed vehicle data and forming the annual vehicle weight value; and the special vehicle is equipped with a wireless transceiver system that interacts with the monitoring device, so that the special vehicle enters the monitoring range. Automatically transmitting the special vehicle data to the monitoring device, or the control box of the control unit or the traffic signal;  When the monitoring device or the control unit or the control box of the traffic signal detects that a special vehicle enters at the intersection, that is, the traffic signal mode is changed to enable the traffic signal to automatically change its emergency control mode, so that The traffic lights on the road in the direction of the special vehicle are immediately changed to the green light status, and the special vehicles are preferentially opened.  1 . The method for controlling an intersection traffic signal according to claim 12, wherein the traffic signal is further provided with a special light signal to indicate that the special vehicle has priority to pass, and other vehicles for the intersection are provided. The driver can get out of the lane based on the information.  14. The method for controlling an intersection traffic signal according to claim 12, wherein the traffic signal is further provided with a display subtitle to indicate that a special vehicle has priority to pass, and other vehicle drivers for the intersection are provided. The information can be learned and iE exits the lane.