CN112967513A - Bus rapid transit priority passing control system - Google Patents
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Abstract
The invention relates to the technical field of traffic signal management, and provides a bus rapid transit priority passing control system, which comprises: the system comprises an RFID label, an RFID identification device, a vehicle-mounted OBU, an RSU and a signal machine; when the rapid transit with the RFID tag passes through the road post, the RFID identification device on the road post identifies the RFID tag arranged on the rapid transit; meanwhile, the vehicle-mounted OBU reports a priority passing request to the RSU through a special communication channel; the RSU acquires the vehicle information of the bus rapid transit from a database; the RSU judges whether to accept the prior passing request of the vehicle-mounted OBU or not according to the vehicle information and the signal prior analysis rule; when the RSU allows signal priority to be carried out on the bus rapid transit, a priority passing message of the applied phase is sent to a signal machine; and after the signaler obtains the priority passing message, carrying out traffic signal lamp scheduling. The invention can improve the running efficiency of the bus rapid transit.
Description
Technical Field
The invention relates to the technical field of traffic signal management, in particular to a bus rapid transit priority passing control system.
Background
The Bus Rapid Transit (BRT) is a new public passenger transport system between Rapid rail Transit and conventional public Transit, and its investment and operation cost are lower than rail Transit, and its operation effect is close to rail Transit.
However, due to the influence of traffic signal lamp traffic control and social traffic flow, bus rapid transit sometimes stops at the crossroads, so that the BRT running efficiency is low and the arrival accuracy rate is low. Based on the situation, the single running time of the BRT is saved, the station arrival rate is improved, and the problem that the current BRT public traffic system needs to solve urgently is the main reason for determining whether the BRT is delayed or not by the station service time and traffic light signals at intersections.
Disclosure of Invention
The invention mainly solves the technical problems that the BRT operation efficiency is low, the arrival accuracy rate is low and the like caused by the fact that the bus rapid transit in the prior art stops at an intersection, and provides a bus rapid transit priority passing control system to achieve that the bus rapid transit does not need to stop due to red light when arriving at a traffic intersection, so that the passing speed of the bus rapid transit is improved, and the operation efficiency of the bus rapid transit is improved.
The invention provides a bus rapid transit priority passing control system, which comprises: the system comprises an RFID label, an RFID identification device, a vehicle-mounted OBU, an RSU and a signal machine;
the RFID tag is installed at the front end of the bus rapid transit; a vehicle-mounted OBU is arranged on the bus rapid transit;
the RFID identification device is in data connection with the RSU; the RFID identification device is arranged on a road marker post in front of the crossroad, and a buffer distance is reserved between the road marker post and the crossroad; the RFID identification device is capable of identifying an RFID tag;
the RSU is in data connection with the annunciator; the RSU is internally provided with a memory, and the memory of the RSU stores the bus rapid transit information corresponding to different RFID tags; wherein the vehicle information includes: the vehicle number, the vehicle running route information and the intersection information of the vehicle passing through;
when the rapid transit with the RFID tag passes through the road post, the RFID identification device on the road post identifies the RFID tag installed on the rapid transit and sends vehicle information corresponding to the RFID tag to the RSU; meanwhile, the vehicle-mounted OBU reports a priority passing request to the RSU through a special communication channel; the priority passing request carries the current position, the current advancing direction, the current running speed and the predicted time of arriving at the crossroad of the bus rapid transit;
the RSU acquires the ID information corresponding to the RFID tag and acquires the vehicle information of the bus rapid transit from a database; the RSU judges whether to accept the prior passing request of the vehicle-mounted OBU or not according to the vehicle information and the signal prior analysis rule; when the RSU allows signal priority to be carried out on the bus rapid transit, a priority passing message of the applied phase is sent to a signal machine;
after the signaler obtains the priority traffic message, the signaler carries out traffic signal lamp scheduling according to the remaining time of the current traffic light and the predicted remaining time of the bus rapid transit to reach the crossroad, and returns a scheduling result to the vehicle-mounted OBU through the RSU; the traffic signal lamp scheduling realizes early red light break or green light extension by regulating and controlling the remaining seconds of the current state of the traffic signal lamp, and ensures that the green light of the traffic signal lamp is on when the bus rapid transit passes through the crossroad, and the bus rapid transit directly passes through.
Preferably, the RSU includes: the system comprises a wireless communication module, a resolver, an RSU processing module and a log module;
the vehicle-mounted OBU sends the priority passing request to the resolver through the wireless communication module;
the resolver resolves the prior passing request of the vehicle-mounted OBU and sends the prior passing request to the RSU processing module,
the RSU processing module judges whether the priority passing request meets a signal priority analysis rule, if so, the bus rapid transit is allowed to pass preferentially to schedule traffic lights; if the signal priority analysis rule is not met, the bus rapid transit is not allowed to pass through preferentially;
the RSU processing module generates a priority passing message and a scheduling result, sends the priority passing message to a signal machine, and feeds the scheduling result back to the vehicle-mounted OBU;
and the log module is used for forming a scheduling log.
Preferably, the signal priority analysis rule has the following characteristics:
when the release direction is green and the remaining green time is enough for the bus rapid transit to normally pass through the current crossroad, the signal machine does not control;
when the release direction is green light and the residual green light time is not enough for the fast bus to pass through the intersection, the signaler performs green light extension control, wherein the green light extension time is the time required by the fast bus to reach a stop line at the current speed-the residual green light time;
when the direction of releasing is the red light this moment, the semaphore will be red light early-break control, compresses the green light time of other directions of releasing, and the maximum time that can compress is other directions of releasing total green light time-total minimum green time.
Preferably, the RFID identification device and the RSU perform information interaction through an RS485 serial port line or an RJ45 network line.
Preferably, the RSU comprises four passive trunk signals, each passive trunk representing a phase request;
and the RSU is provided with a main control board, a relay board, an RJ45 network cable interface, a 2A/B relay and a 5V power interface.
Preferably, a vehicle-mounted DVR is arranged on the bus rapid transit, and the vehicle-mounted DVR is in data connection with a control center;
the vehicle-mounted DVR collects video data in the vehicle and uploads the video data to the control center.
Preferably, the bus rapid transit is provided with a shooting device, and the shooting device shoots image data in the bus rapid transit and uploads the image data to the control center;
the control center identifies the number of people in the image data, and when the number of people in the image data exceeds a threshold value, an alarm is given.
Preferably, the vehicle-mounted OBU is in data connection with a control center;
the vehicle-mounted OBU is also in data connection with a monitoring system configured by the bus rapid transit;
alarm signals in the vehicle are monitored by the vehicle-mounted OBU in real time, and when the alarm signals are generated in the monitoring system, the vehicle-mounted OBU uploads alarm information to the control center.
Preferably, the road sign pole is provided with a first optical sensor, a second optical sensor is arranged below the crossroad signal lamp, and the first optical sensor and the second optical sensor are respectively in data connection with a signal machine;
the first optical sensor monitors the number of vehicles to pass through the road sign post and uploads the number of the vehicles to the signal machine;
the second optical sensor monitors the number of vehicles passing through the crossroad and uploads the number of vehicles to the signal machine;
the traffic signal machine judges the number of vehicles to be passed at the crossroad according to the information uploaded by the first optical sensor and the second optical sensor, when the number of the vehicles to be passed exceeds a threshold value, the traffic signal machine judges that the road is congested, the traffic signal machine controls the traffic signal lamp, and the road congestion is relieved by adopting a red light early-breaking or green light prolonging mode.
Preferably, a display screen is configured on the bus rapid transit;
the display screen is in data connection with the signal machine, and the number of the vehicles to be passed, the current speed, the predicted time of arriving at the crossroad and the current state of the traffic signal lamp are displayed on the display screen.
The bus rapid transit priority passing control system provided by the invention can inform the annunciator of the crossroad in advance in a wireless communication mode when the bus passes through the crossroad, and the annunciator can arrange the remaining time of the current traffic light according to a scheduling strategy, so that the bus rapid transit does not need to stop due to the red light when arriving at the traffic intersection, thereby improving the passing speed of the bus rapid transit, improving the running efficiency of the bus rapid transit and realizing the priority control and safe running service of the bus rapid transit. In addition, the system also has a remote monitoring function, so that maintenance personnel of the control center can remotely monitor video and image information in the bus rapid transit in real time, and when the control center finds that the bus is in full-load operation, operation scheduling can be increased in time, and the bus pressure is relieved; when the vehicle gives an abnormal alarm, the alarm information can be transmitted to a control center in real time to carry out safety monitoring and emergency reaction.
Drawings
FIG. 1 is a schematic diagram of a bus rapid transit priority passing control system provided by the present invention;
FIG. 2 is a connection block diagram of each part of the bus rapid transit priority passing control system provided by the invention;
fig. 3 is a schematic structural diagram of an RSU provided in the present invention.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant aspects of the present invention are shown in the drawings.
As shown in fig. 1 and 2, the bus rapid transit priority passing control system provided by the embodiment of the present invention includes: RFID label, RFID identification device, on-vehicle OBU, RSU and semaphore.
The RFID (Radio Frequency Identification) tag is installed at the front end of the bus rapid transit, and specifically, the RFID tag is installed on the front windshield of the bus rapid transit; and the bus rapid transit is provided with a vehicle-mounted OBU. The RFID tag has the characteristics of rapidness, accuracy, non-contact identification, stable and reliable communication and the like. The communication distance of the RFID tags is adjustable, and the RSU stores the running route information of the buses corresponding to different RFID tags.
The RFID identification device is in data connection with the RSU, and specifically, information interaction is performed between the RFID identification device and the RSU through an RS485 serial port line or an RJ45 network line. The RFID identification device is arranged on a road marker post in front of the crossroad, and a buffer distance is reserved between the road marker post and the crossroad; it is ensured that no obvious obstruction interferes with the reading of the card between the RFID tag and the RFID identification device, and the RFID identification device can identify the RFID tag right in front of the vehicle. Specifically, the RFID identification device may be an RFID reader, and the communication distance of the RFID identification device is about 50 meters. The speed of the vehicle passing through the intersection is about 30KM/H (8m/s), so that the reserved buffer distance is 50-150, preferably 100 meters, and the signal machine can know the information of the vehicle passing in advance.
The communication between the RFID identification device and the RSU adopts a Zigbee mode or an RFID mode, and the two schemes are that when a vehicle passes through a crossroad, a signal machine is informed in a wireless mode to request preferential passage. Only the way of wireless communication is different: a short-distance wireless communication is realized through Zigbee; a short-range wireless communication is realized by RFID.
The RSU (Road Side Unit) is in data connection with a signal machine; the RSU is internally provided with a memory, and the memory of the RSU stores the bus rapid transit information corresponding to different RFID tags; wherein the vehicle information includes: the vehicle number, the vehicle running route information and the intersection information passed by the vehicle.
When the rapid transit with the RFID tag passes through the road post, the RFID identification device on the road post identifies the RFID tag installed on the rapid transit and sends vehicle information corresponding to the RFID tag to the RSU; meanwhile, the On Board Unit (OBU) reports a priority pass request to the RSU through a special communication channel; the priority passing request carries the current position, the current traveling direction, the current running speed and the predicted time of arriving at the crossroad of the bus rapid transit.
The RSU acquires the ID information corresponding to the RFID tag and acquires the vehicle information of the bus rapid transit from a database; the RSU judges whether to accept the prior passing request of the vehicle-mounted OBU or not according to the vehicle information and the signal prior analysis rule; and when the RSU allows the bus rapid transit to carry out signal priority, the priority passing message of the applied phase is sent to the signal machine through the switching value.
After the signaler obtains the priority traffic message, the signaler carries out traffic signal lamp scheduling according to the remaining time of the current traffic light and the predicted remaining time of the bus rapid transit to reach the crossroad, and returns a scheduling result to the vehicle-mounted OBU through the RSU; the traffic signal lamp scheduling realizes early red light break or green light extension by regulating and controlling the remaining seconds of the current state of the traffic signal lamp, and ensures that the green light of the traffic signal lamp is on when the bus rapid transit passes through the crossroad, and the bus rapid transit directly passes through. The signal machine controls the residual on-off time of the traffic lights through a red light early-off or green light prolonging strategy, and ensures that the green lights can pass through without stopping when the bus arrives at the intersection to a certain extent.
On the basis of the above scheme, the RSU specifically includes: the system comprises a wireless communication module, a resolver, an RSU processing module and a log module; the vehicle-mounted OBU sends the priority passing request to the resolver through the wireless communication module; the resolver resolves a priority passing request of the vehicle-mounted OBU and sends the priority passing request to the RSU processing module, the RSU processing module judges whether the priority passing request meets a signal priority analysis rule, if the priority passing request meets the signal priority analysis rule, the bus rapid transit is allowed to pass preferentially, and traffic signal lamp scheduling is carried out; if the signal priority analysis rule is not met, the bus rapid transit is not allowed to pass through preferentially; the RSU processing module generates a priority passing message and a scheduling result, sends the priority passing message to a signal machine, and feeds the scheduling result back to the vehicle-mounted OBU; and the log module is used for forming a scheduling log.
In addition, the RSU can be placed on the signal side of the intersection, said RSU comprising four passive trunk contact signals, each passive trunk contact representing a phase request; as shown in fig. 3, the RSU is configured with a main control board, a relay board, an RJ45 network cable interface, a 2A/B relay, and a 5V power interface. In this embodiment, the wireless communication module is a Zigbee module or an RFID module. The RSU of this embodiment can read the configuration file, obtain the steering direction of the vehicle, and then send a traffic request to the traffic signal at the corresponding phase. The request is for the passive dry contact to close. After the request is sent, the time lasts for about 1 second, the dry contact is disconnected, and the request is released. The RSU processes each request for an interval of 10 seconds. After receiving each request, the RSU processes the next request only after 10 seconds, thereby preventing the problem of repeated card reading.
In the above scheme, the signal priority analysis rule has the following characteristics:
when the release direction is green and the remaining green time is enough for the bus rapid transit to normally pass through the current crossroad, the signal machine does not control;
when the release direction is green light and the residual green light time is not enough for the fast bus to pass through the intersection, the signaler performs green light extension control, wherein the green light extension time is the time required by the fast bus to reach a stop line at the current speed-the residual green light time;
when the release direction is the red light this moment, the semaphore will do the early control of red light, compresses the green light time of other release directions promptly, and the maximum time that can compress is other release directions total green light time-total minimum green time.
In this embodiment, since the RFID tag can be read within the identification range of the RFID identification device, the RSU can be configured with a certain limit that the same card ID is considered as a valid card ID only when it is received again after more than 10 seconds. When the RSU sends a phase request, the red light can be seen on the corresponding phase port of the RSU, and then for about 1 second, the dry contact is opened again, releasing the request.
Further, a vehicle-mounted DVR (Digital Video Recorder) is arranged on the bus rapid transit, and the vehicle-mounted DVR is in data connection with a control center; the vehicle-mounted DVR collects video data in the vehicle and uploads the video data to the control center through a 3G/4G network. According to the monitoring system for the bus rapid transit configuration, workers in a bus can perform emergency alarm on a control center by triggering an emergency alarm button, and can transmit bus rapid transit position information to the control center through a GPS positioning device.
Furthermore, a shooting device is arranged on the bus rapid transit, and the shooting device shoots image data in the bus rapid transit and uploads the image data to a control center; the control center identifies the number of people in the image data, and when the number of people in the image data exceeds a threshold value, an alarm prompt is given to prompt that the full-load operation of the bus rapid transit is performed, and operation scheduling is increased in time to relieve the bus pressure.
Further, the vehicle-mounted OBU is in data connection with the control center; the vehicle-mounted OBU is also in data connection with a monitoring system configured by the bus rapid transit; alarm signals in the vehicle are monitored by the vehicle-mounted OBU in real time, and when the alarm signals are generated in the monitoring system, the vehicle-mounted OBU uploads alarm information to the control center. The vehicle-mounted OBU monitors alarm signals in the vehicle in real time, and when the alarm signals are generated, such as an emergency alarm button alarm, the equipment can upload alarm information to a control center in time according to an alarm configuration strategy.
Furthermore, the road sign pole is provided with a first optical sensor, a second optical sensor is arranged below the crossroad signal lamp, and the first optical sensor and the second optical sensor are respectively in data connection with a signal machine; the first optical sensor monitors the number of vehicles to pass through the road sign post and uploads the number of the vehicles to the signal machine; the second light sensor monitors the number of vehicles that have passed through the intersection and uploads to the annunciator.
The traffic signal machine judges the number of vehicles to be passed at the crossroad according to the information uploaded by the first optical sensor and the second optical sensor, when the number of the vehicles to be passed exceeds a threshold value, the traffic signal machine judges that the road is congested, the traffic signal machine controls the traffic signal lamp, and the road congestion is relieved by adopting a red light early-breaking or green light prolonging mode. The control of the situation can be combined with the road condition of the vertical lane, and the effect of relieving traffic jam is better under the condition that the vertical lane is not jammed.
Further, a display screen is configured on the bus rapid transit; the display screen is in data connection with the signal machine, and the number of the vehicles to be passed, the current speed, the predicted time of arriving at the crossroad and the current state of the traffic signal lamp are displayed on the display screen. The speed guide and the information display can be carried out by arranging the display screen.
The system can inform the annunciator of the crossroad in advance in a wireless communication mode when the bus passes through the crossroad, and the annunciator can arrange the remaining time of the current traffic light according to a scheduling strategy, so that the bus rapid transit does not need to stop due to the red light when reaching the traffic intersection, the passing speed of the bus rapid transit is improved, the running efficiency of the bus rapid transit is improved, and the priority control and the safe driving service of the bus rapid transit are realized. In addition, the system also has a remote monitoring function, so that maintenance personnel of the control center can remotely monitor video and image information in the bus rapid transit in real time, and when the control center finds that the bus is in full-load operation, operation scheduling can be increased in time, and the bus pressure is relieved; when the vehicle gives an abnormal alarm, the alarm information can be transmitted to a control center in real time to carry out safety monitoring and emergency reaction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: modifications of the technical solutions described in the embodiments or equivalent replacements of some or all technical features may be made without departing from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a bus rapid transit is priority to pass through control system which characterized in that includes: the system comprises an RFID label, an RFID identification device, a vehicle-mounted OBU, an RSU and a signal machine;
the RFID tag is installed at the front end of the bus rapid transit; a vehicle-mounted OBU is arranged on the bus rapid transit;
the RFID identification device is in data connection with the RSU; the RFID identification device is arranged on a road marker post in front of the crossroad, and a buffer distance is reserved between the road marker post and the crossroad; the RFID identification device is capable of identifying an RFID tag;
the RSU is in data connection with the annunciator; the RSU is internally provided with a memory, and the memory of the RSU stores the bus rapid transit information corresponding to different RFID tags; wherein the vehicle information includes: the vehicle number, the vehicle running route information and the intersection information of the vehicle passing through;
when the rapid transit with the RFID tag passes through the road post, the RFID identification device on the road post identifies the RFID tag installed on the rapid transit and sends vehicle information corresponding to the RFID tag to the RSU; meanwhile, the vehicle-mounted OBU reports a priority passing request to the RSU through a special communication channel; the priority passing request carries the current position, the current advancing direction, the current running speed and the predicted time of arriving at the crossroad of the bus rapid transit;
the RSU acquires the ID information corresponding to the RFID tag and acquires the vehicle information of the bus rapid transit from a database; the RSU judges whether to accept the prior passing request of the vehicle-mounted OBU or not according to the vehicle information and the signal prior analysis rule; when the RSU allows signal priority to be carried out on the bus rapid transit, a priority passing message of the applied phase is sent to a signal machine;
after the signaler obtains the priority traffic message, the signaler carries out traffic signal lamp scheduling according to the remaining time of the current traffic light and the predicted remaining time of the bus rapid transit to reach the crossroad, and returns a scheduling result to the vehicle-mounted OBU through the RSU; the traffic signal lamp scheduling realizes early red light break or green light extension by regulating and controlling the remaining seconds of the current state of the traffic signal lamp, and ensures that the green light of the traffic signal lamp is on when the bus rapid transit passes through the crossroad, and the bus rapid transit directly passes through.
2. The bus rapid transit priority passage control system according to claim 1, wherein the RSU comprises: the system comprises a wireless communication module, a resolver, an RSU processing module and a log module;
the vehicle-mounted OBU sends the priority passing request to the resolver through the wireless communication module;
the resolver resolves the prior passing request of the vehicle-mounted OBU and sends the prior passing request to the RSU processing module,
the RSU processing module judges whether the priority passing request meets a signal priority analysis rule, if so, the bus rapid transit is allowed to pass preferentially to schedule traffic lights; if the signal priority analysis rule is not met, the bus rapid transit is not allowed to pass through preferentially;
the RSU processing module generates a priority passing message and a scheduling result, sends the priority passing message to a signal machine, and feeds the scheduling result back to the vehicle-mounted OBU;
and the log module is used for forming a scheduling log.
3. The bus rapid transit priority transit control system according to claim 2, wherein the signal priority analysis rule has the following characteristics:
when the release direction is green and the remaining green time is enough for the bus rapid transit to normally pass through the current crossroad, the signal machine does not control;
when the release direction is green light and the residual green light time is not enough for the fast bus to pass through the intersection, the signaler performs green light extension control, wherein the green light extension time is the time required by the fast bus to reach a stop line at the current speed-the residual green light time;
when the direction of releasing is the red light this moment, the semaphore will be red light early-break control, compresses the green light time of other directions of releasing, and the maximum time that can compress is other directions of releasing total green light time-total minimum green time.
4. The bus rapid transit priority passing control system according to claim 1, wherein the information interaction between the RFID identification device and the RSU is performed through an RS485 serial port line or an RJ45 network line.
5. The bus rapid transit priority control system of claim 1 wherein the RSU includes four passive trunk contact signals, each passive trunk contact representing a phase request;
and the RSU is provided with a main control board, a relay board, an RJ45 network cable interface, a 2A/B relay and a 5V power interface.
6. The bus rapid transit priority passing control system according to claim 1, wherein a vehicle-mounted DVR is arranged on the bus rapid transit, and the vehicle-mounted DVR is in data connection with a control center;
the vehicle-mounted DVR collects video data in the vehicle and uploads the video data to the control center.
7. The bus rapid transit priority passing control system according to claim 6, wherein a shooting device is arranged on the bus rapid transit, and the shooting device shoots image data in the bus rapid transit and uploads the image data to a control center;
the control center identifies the number of people in the image data, and when the number of people in the image data exceeds a threshold value, an alarm is given.
8. The bus rapid transit priority transit control system according to claim 1, wherein the vehicle-mounted OBU is in data connection with a control center;
the vehicle-mounted OBU is also in data connection with a monitoring system configured by the bus rapid transit;
alarm signals in the vehicle are monitored by the vehicle-mounted OBU in real time, and when the alarm signals are generated in the monitoring system, the vehicle-mounted OBU uploads alarm information to the control center.
9. The bus rapid transit priority passing control system according to claim 1, wherein the road sign post is provided with a first optical sensor, a second optical sensor is arranged below the intersection signal lamp, and the first optical sensor and the second optical sensor are respectively in data connection with a signal machine;
the first optical sensor monitors the number of vehicles to pass through the road sign post and uploads the number of the vehicles to the signal machine;
the second optical sensor monitors the number of vehicles passing through the crossroad and uploads the number of vehicles to the signal machine;
the traffic signal machine judges the number of vehicles to be passed at the crossroad according to the information uploaded by the first optical sensor and the second optical sensor, when the number of the vehicles to be passed exceeds a threshold value, the traffic signal machine judges that the road is congested, the traffic signal machine controls the traffic signal lamp, and the road congestion is relieved by adopting a red light early-breaking or green light prolonging mode.
10. The bus rapid transit priority passing control system according to claim 1 or 9, wherein a display screen is configured on the bus rapid transit;
the display screen is in data connection with the signal machine, and the number of the vehicles to be passed, the current speed, the predicted time of arriving at the crossroad and the current state of the traffic signal lamp are displayed on the display screen.
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Cited By (4)
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CN113593274A (en) * | 2021-07-29 | 2021-11-02 | 青岛海信网络科技股份有限公司 | Traffic signal control method and device |
CN113793518A (en) * | 2021-09-13 | 2021-12-14 | 浙江大华技术股份有限公司 | Vehicle passing processing method and device, electronic equipment and storage medium |
CN114582114A (en) * | 2022-02-18 | 2022-06-03 | 广州华生信息科技有限公司 | Fire-fighting vehicle priority passing system based on Internet of things, control method, computer-readable storage medium and terminal |
WO2023231581A1 (en) * | 2022-06-02 | 2023-12-07 | 腾讯科技(深圳)有限公司 | Traffic control method, apparatus, device, and storage medium |
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