CN110556006B - Traffic flow counting method, system, equipment and computer storage medium - Google Patents
Traffic flow counting method, system, equipment and computer storage medium Download PDFInfo
- Publication number
- CN110556006B CN110556006B CN201810553531.1A CN201810553531A CN110556006B CN 110556006 B CN110556006 B CN 110556006B CN 201810553531 A CN201810553531 A CN 201810553531A CN 110556006 B CN110556006 B CN 110556006B
- Authority
- CN
- China
- Prior art keywords
- state
- distance
- controlling
- vehicle
- counter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/27—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Traffic Control Systems (AREA)
- Devices For Checking Fares Or Tickets At Control Points (AREA)
Abstract
The embodiment of the invention discloses a method, a system and equipment for counting traffic flow and a computer storage medium. The method comprises the following steps: respectively obtaining a first distance acquired by a first sensor and a second distance acquired by a second sensor; the first sensor and the second sensor are respectively arranged on two sides of a passage where a vehicle passes through, and the distance between the first sensor and the second sensor meets a preset condition; the first and second distances characterize a width of the lane when no vehicle passes; judging whether a vehicle passes through according to the first distance and the second distance to obtain a judgment result; and controlling the state switching of a state machine based on the judgment result, and counting the number of vehicles passing through the channel based on the state switching of the state machine.
Description
Technical Field
The invention relates to the technology of Internet of things, in particular to a traffic flow counting method, a traffic flow counting system, traffic flow counting equipment and a computer storage medium.
Background
In the era of the internet of things, a parking lot is an important application scene of the internet of things. The important embodiment of the application of the Internet of things is that real-time and accurate data can be provided to support the operation of the parking lot. The number of vehicles entering and exiting a parking lot entrance is important parking lot operation data.
The traffic flow statistical scheme of current parking area access & exit often adopts the mode of electronic brake lever, one pole whole car. In actual operation, the cost of modifying the parking lot is high, the parking rod is required to park when a vehicle enters and exits, and the entering and exiting efficiency is reduced. For the statistical mode based on the geomagnetic sensor, a magnetic field is placed beside the giant magnetoresistance sensor, the output change of the sensor is caused by the change of the magnetic field when an automobile passes by, the passing automobile is judged through the output change of the sensor, and the measured traffic flow information is sent to a base station through radio frequency to be stored.
Disclosure of Invention
In order to solve the existing technical problems, embodiments of the present invention provide a traffic flow counting method, system, device, and computer storage medium.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a traffic flow counting method, which comprises the following steps:
respectively obtaining a first distance acquired by a first sensor and a second distance acquired by a second sensor; the first sensor and the second sensor are respectively arranged on two sides of a passage where a vehicle passes through, and the distance between the first sensor and the second sensor meets a preset condition; the first and second distances characterize a width of the lane when no vehicle passes;
judging whether a vehicle passes through according to the first distance and the second distance to obtain a judgment result;
and controlling the state switching of a state machine based on the judgment result, and counting the number of vehicles passing through the channel based on the state switching of the state machine.
In the foregoing solution, the determining whether a vehicle passes through according to the first distance and the second distance to obtain a determination result includes:
calculating the sum of the first distance and the second distance to obtain a first result;
calculating the difference between the width of the channel and the first result to obtain a second result;
judging whether the second result is within a first preset threshold range or not; when the second result is within the first preset threshold range, determining that a vehicle passes through; and when the second result is not in the first preset threshold range, determining that no vehicle passes through.
In the foregoing solution, before the calculating the sum of the first distance and the second distance, the method further includes:
judging whether the first distance and the second distance are both within a second preset threshold range;
correspondingly, when the first distance and the second distance are both within the second preset threshold range, the sum of the first distance and the second distance is calculated.
In the foregoing solution, the controlling the state switching of the state machine based on the determination result includes:
when no vehicle passes through the control state machine, a first numerical value is input; when the accumulated number of the input first numerical values is larger than or equal to a first threshold value, controlling the state machine to be switched to a vehicle-free state;
when the vehicle is judged to pass through, controlling the state machine to input a second numerical value; and when the accumulated number of the input second numerical values is greater than or equal to a second threshold value, controlling the state machine to be switched to a vehicle-in state.
In the above scheme, the method further comprises: when the state machine is in a vehicle-free state and the state machine inputs the second numerical value, controlling the state machine to be switched to a first state, and controlling a first counter of the first state to be increased by one;
when the state machine is in the first state, if the state machine continuously inputs the second numerical value, the first counter is controlled to continuously increase by one, and when the numerical value of the first counter is larger than or equal to the second threshold value, the state machine is controlled to be switched to a vehicle-on state, and the first counter is controlled to be cleared; if the state machine inputs the first numerical value, controlling the state machine to be switched to a second state, and controlling a second counter of the second state to increase by one;
when the state machine is in the second state, the state machine continuously inputs the first numerical value, and then the second counter is controlled to continuously increase by one; if the state machine inputs the second numerical value and the numerical value of the second counter is smaller than the first threshold value, controlling the state machine to be switched to the first state, and controlling the second counter to be cleared, wherein the first counter is increased by one; if the value of the second counter is larger than or equal to the first threshold value, controlling the state machine to be switched to a no-vehicle state, and controlling the second counter to be cleared;
when the state machine is in the vehicle-presence state, if the state machine inputs the first numerical value, controlling the state machine to be switched to a third state, and controlling a third counter of the third state to increase by one;
when the state machine is in the third state, if the state machine continuously inputs the first numerical value, controlling the third counter to continuously increase by one; if the numerical value of the third counter is larger than or equal to the first threshold value, controlling the state machine to be switched to a no-vehicle state, and controlling the third counter to be cleared; and if the state machine inputs the second threshold value and the numerical value of the third counter is smaller than the first threshold value, controlling the state machine to be switched to a vehicle-in state.
In the foregoing solution, the counting the number of vehicles passing through the channel based on the state switching of the state machine includes:
triggering a vehicle count when the state machine switches from the first state to the second state.
An embodiment of the present invention further provides a traffic flow counting device, where the device includes: the device comprises a data acquisition unit, a judgment unit, a state machine unit and a statistic unit; wherein the content of the first and second substances,
the data acquisition unit is used for respectively acquiring a first distance acquired by the first sensor and a second distance acquired by the second sensor; the first sensor and the second sensor are respectively arranged on two sides of a passage where a vehicle passes through, and the distance between the first sensor and the second sensor meets a preset condition; the first and second distances characterize a width of the lane when no vehicle passes;
the judging unit is used for judging whether a vehicle passes through according to the first distance and the second distance to obtain a judging result;
the state machine unit is used for controlling the state switching of the state machine unit based on the judgment result obtained by the judgment unit;
and the counting unit is used for switching and counting the number of vehicles passing through the channel based on the state of the state machine unit.
In the foregoing solution, the determining unit is configured to calculate a sum of the first distance and the second distance to obtain a first result; calculating the difference between the width of the channel and the first result to obtain a second result; judging whether the second result is within a first preset threshold range or not; when the second result is within the first preset threshold range, determining that a vehicle passes through; and when the second result is not in the first preset threshold range, determining that no vehicle passes through.
In the foregoing solution, the determining unit is configured to determine whether the first distance and the second distance are both within a second preset threshold range before calculating a sum of the first distance and the second distance; when the first distance and the second distance are both within the second preset threshold range, calculating the sum of the first distance and the second distance.
In the above scheme, the state machine unit is configured to control to input a first numerical value when it is determined that no vehicle passes through; when the accumulated number of the input first numerical values is larger than or equal to a first threshold value, controlling to switch to a vehicle-free state; when the vehicle is judged to pass through, controlling to input a second numerical value; and when the accumulated number of the input second numerical values is greater than or equal to a second threshold value, controlling to switch to a vehicle-in state.
In the above scheme, the state machine unit is configured to control to switch to a first state and control a first counter of the first state to increment by one when the second value is input in a no-vehicle state;
when the vehicle is in the first state, if the second numerical value is continuously input, the first counter is controlled to continuously increase by one, and when the numerical value of the first counter is greater than or equal to the second threshold value, the vehicle is controlled to be switched to a vehicle-on state, and the first counter is controlled to be cleared; if the first numerical value is input, controlling to switch to a second state, and controlling a second counter of the second state to increase by one;
when the first counter is in the second state, the first value is continuously input, and the second counter is controlled to continuously increase by one; if the second numerical value is input and the numerical value of the second counter is smaller than the first threshold value, controlling to switch to the first state, controlling to clear the second counter, and increasing one by the first counter; if the numerical value of the second counter is larger than or equal to the first threshold value, controlling to switch to a vehicle-free state, and controlling the second counter to be cleared;
when the vehicle is in the vehicle-in state, if the first numerical value is input, controlling to switch to a third state, and controlling a third counter in the third state to increase by one;
under the third state, if the first numerical value is continuously input, controlling the third counter to continuously increase by one; if the numerical value of the third counter is larger than or equal to the first threshold value, controlling to switch to a no-vehicle state and controlling the third counter to be cleared; and if the second threshold value is input and the numerical value of the third counter is smaller than the first threshold value, controlling to switch to a vehicle-in state.
In the foregoing scheme, the counting unit is configured to trigger vehicle counting when the state machine unit is switched from the first state to the second state.
The embodiment of the invention also provides traffic flow counting equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the program to realize the steps of the traffic flow counting method in the embodiment of the invention.
The embodiment of the invention also provides a traffic flow counting system, which comprises: the device comprises a first sensor for acquiring a first distance, a second sensor for acquiring a second distance and a vehicle flow counting device according to the embodiment of the invention;
the first sensor and the second sensor are respectively arranged on two sides of a passage where a vehicle passes through, and the distance between the first sensor and the second sensor meets a preset condition; the first and second distances are indicative of a width of the passageway when no vehicle is passing.
Embodiments of the present invention further provide a computer storage medium, on which computer instructions are stored, and when the instructions are executed by a processor, the steps of the traffic flow counting method according to the embodiments of the present invention are implemented.
The embodiment of the invention provides a traffic flow counting method, a system, equipment and a computer storage medium, wherein the method comprises the following steps: respectively obtaining a first distance acquired by a first sensor and a second distance acquired by a second sensor; the first sensor and the second sensor are respectively arranged on two sides of a passage where a vehicle passes through, and the distance between the first sensor and the second sensor meets a preset condition; the first and second distances characterize a width of the lane when no vehicle passes; judging whether a vehicle passes through according to the first distance and the second distance to obtain a judgment result; and controlling the state switching of a state machine based on the judgment result, and counting the number of vehicles passing through the channel based on the state switching of the state machine. By adopting the technical scheme of the embodiment of the invention, the two sensors are arranged to detect the passing of the vehicles, and the state switching of the state machine is used for counting the number of the vehicles, namely the statistics of the traffic flow can be realized only by arranging the two sensors; compared with the existing statistical mode of the geomagnetic sensor, the technical scheme of the application realizes accurate statistics of traffic flow and greatly improves statistical efficiency.
Drawings
FIG. 1 is a schematic flow chart of a traffic flow counting method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a sensor arrangement in an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a traffic flow counting method according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating state transition of a state machine in the traffic flow counting method according to the embodiment of the present invention;
FIG. 5 is a schematic diagram of a structure of a traffic flow counting device according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a hardware configuration of a traffic flow counting device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a traffic flow counting method. FIG. 1 is a schematic flow chart of a traffic flow counting method according to an embodiment of the present invention; as shown in fig. 1, the method includes:
step 101: respectively obtaining a first distance acquired by a first sensor and a second distance acquired by a second sensor; the first sensor and the second sensor are respectively arranged on two sides of a passage where a vehicle passes through, and the distance between the first sensor and the second sensor meets a preset condition; the first and second distances are indicative of a width of the passageway when no vehicle is passing.
Step 102: and judging whether a vehicle passes through according to the first distance and the second distance to obtain a judgment result.
Step 103: and controlling the state switching of a state machine based on the judgment result, and counting the number of vehicles passing through the channel based on the state switching of the state machine.
The traffic flow counting method of the embodiment is applied to traffic flow counting equipment; the traffic flow counting device establishes a connection with the at least one first sensor and the at least one second sensor in a wireless manner. The first sensor and the second sensor are arranged in pairs, and are particularly arranged on two side walls of a passage where a vehicle passes through, for example, in the application scene of a parking lot, the first sensor and the second sensor can be arranged on two side walls of the passage at a vehicle entrance or a vehicle exit. And the distance between the first sensor and the second sensor meets a preset condition. Wherein, the first sensor and the second sensor are used for measuring distance, in practical application, the first sensor and the second sensor can be at least one of the following: ultrasonic sensors, laser sensors, infrared sensors, etc., are not limited to the types of ranging sensors listed above.
In this embodiment, the first sensor and the second sensor are each provided with a communication component, and the communication component supports communication with the traffic flow counting device and transmits distance data obtained by measurement to the traffic flow counting device.
Specifically, the distance between the first sensor and the second sensor satisfies a preset condition, including: the distance between the first sensor and the second sensor is greater than the width of the channel and less than a preset threshold.
As an implementation manner, fig. 2 is a schematic diagram of the arrangement of the sensor in the embodiment of the invention; as shown in fig. 2, the first sensor is disposed on the first wall surface, the second sensor is disposed on the second wall surface, and a position of the first sensor perpendicular to the second wall surface may be a predetermined distance from the second sensor, for example, 100 cm. The first sensor detects the distance to the vehicle when the vehicle passes S1 and the second sensor detects the distance to the vehicle S2. The first sensor and the second sensor can be arranged at the same height, namely the distance from the first sensor to the ground is the same as the distance from the second sensor to the ground. The arrangement mode can avoid the interference of non-vehicles such as pedestrians.
In this embodiment, whether a vehicle passes through is determined by combining the state machine according to the first distance and the second distance respectively reported by the first sensor and the second sensor.
In an embodiment, the determining whether a vehicle passes through according to the first distance and the second distance to obtain a determination result includes: calculating the sum of the first distance and the second distance to obtain a first result; calculating the difference between the width of the channel and the first result to obtain a second result; judging whether the second result is within a first preset threshold range or not; when the second result is within the first preset threshold range, determining that a vehicle passes through; and when the second result is not in the first preset threshold range, determining that no vehicle passes through.
Specifically, the width K of the tunnel may be pre-configured, and taking the example shown in FIG. 2, the approximate width of the vehicle body may be obtained by (K-S1-S2); normally, the width of the vehicle body is within a first preset threshold range, and then whether a second result obtained by judging (K-S1-S2) is within the first preset threshold range is determined, and when the second result is determined to be within the first preset threshold range, it is determined that the vehicle passes through; accordingly, if it is determined that the second result is not within the first preset threshold range, it may be determined that the vehicle passes through.
In an embodiment, before the calculating the sum of the first distance and the second distance, the method further comprises: judging whether the first distance and the second distance are both within a second preset threshold range; correspondingly, when the first distance and the second distance are both within the second preset threshold range, the sum of the first distance and the second distance is calculated.
Specifically, before determining whether a vehicle passes through a first distance and a second distance, firstly, determining validity of the first distance and the second distance, namely, determining whether the first distance and the second distance are both within a second preset threshold range; the second preset threshold value meets the width from zero to the channel, namely, the second preset threshold value is larger than zero and is smaller than or equal to the channel width, so that the situation that the acquired data is mistakenly presented due to the shaking of the sensor is avoided.
FIG. 3 is a schematic flow chart of a traffic flow counting method according to an embodiment of the present invention; as shown in fig. 3, the received distance information (including the first distance and the second distance) is recorded as a data input process, and further determined whether the received distance information is valid data or not to eliminate abnormal data; specifically, whether the data is valid data can be judged by respectively judging whether the first distance and the second distance are both within a second preset threshold range; when the first distance and the second distance are judged to be valid data, judging whether the first distance and the second distance are vehicle data; and when the first distance or the second distance is judged not to be valid data, 0 is output, and 0 is input into the state machine. In the process of judging whether the data is vehicle data, subtracting the first distance from the channel width and then subtracting the second distance to obtain a difference value, and judging whether the difference value is within a first preset threshold range; this difference indicates the width of the vehicle; in general, if the width of the vehicle is within a certain range, for example, 150cm to 190cm, the first preset threshold range may be configured to be 150cm to 190cm in advance, and if the obtained difference is determined to be 150cm to 190cm, it may indicate that the vehicle passes through. When the vehicle data is judged to be the vehicle data, inputting 1 into the state machine; accordingly, if it is determined that the vehicle data is not the vehicle data, 0 is input to the state machine. And the state machine switches the states according to the input numerical value, and further counts the traffic flow.
In this embodiment, the controlling the state switching of the state machine based on the determination result includes: when no vehicle passes through the control state machine, a first numerical value is input; when the accumulated number of the input first numerical values is larger than or equal to a first threshold value, controlling the state machine to be switched to a vehicle-free state; when the vehicle is judged to pass through, controlling the state machine to input a second numerical value; and when the accumulated number of the input second numerical values is greater than or equal to a second threshold value, controlling the state machine to be switched to a vehicle-in state.
As an embodiment, the method further comprises: when the state machine is in a vehicle-free state and the state machine inputs the second numerical value, controlling the state machine to be switched to a first state, and controlling a first counter of the first state to be increased by one;
when the state machine is in the first state, if the state machine continuously inputs the second numerical value, the first counter is controlled to continuously increase by one, and when the numerical value of the first counter is larger than or equal to the second threshold value, the state machine is controlled to be switched to a vehicle-on state, and the first counter is controlled to be cleared; if the state machine inputs the first numerical value, controlling the state machine to be switched to a second state, and controlling a second counter of the second state to increase by one;
when the state machine is in the second state, the state machine continuously inputs the first numerical value, and then the second counter is controlled to continuously increase by one; if the state machine inputs the second numerical value and the numerical value of the second counter is smaller than the first threshold value, controlling the state machine to be switched to the first state, and controlling the second counter to be cleared, wherein the first counter is increased by one; if the value of the second counter is larger than or equal to the first threshold value, controlling the state machine to be switched to a no-vehicle state, and controlling the second counter to be cleared;
when the state machine is in the vehicle-presence state, if the state machine inputs the first numerical value, controlling the state machine to be switched to a third state, and controlling a third counter of the third state to increase by one;
when the state machine is in the third state, if the state machine continuously inputs the first numerical value, controlling the third counter to continuously increase by one; if the numerical value of the third counter is larger than or equal to the first threshold value, controlling the state machine to be switched to a no-vehicle state, and controlling the third counter to be cleared; and if the state machine inputs the second threshold value and the numerical value of the third counter is smaller than the first threshold value, controlling the state machine to be switched to a vehicle-in state.
Specifically, the distance data reported by the first sensor and the second sensor is discrete data, which can be recorded as k (x); processing k (x) to form the input u (k) of the state machine. The state machine is used for processing the input signal, and when a vehicle passes by, the vehicle state is output if the conditions are met. In this embodiment, the state machine has five states, which respectively include: the vehicle-mounted state, the vehicle-free state, the first state, the second state and the third state; the first state, the second state and the third state are all intermediate states between the vehicle-presence state and the vehicle-absence state; the difference is that the first state may be a suspected vehicle-in state, the second state may be a suspected vehicle-in state but prone to vehicle-out, and the third state may be a suspected vehicle-out state. Here, the first state, the second state, and the third state are also provided with a first counter, a second counter, and a third counter, respectively. The state machine inputs 1 or 0 and correspondingly outputs a vehicle state or a vehicle-free state; the vehicle-in state indicates that a vehicle passes; the no vehicle state indicates no vehicle passing.
In one embodiment, the counting the number of vehicles passing through the lane based on the state switching of the state machine includes: triggering a vehicle count when the state machine switches from the first state to the second state.
Specifically, fig. 4 is a schematic state transition diagram of a state machine in the traffic flow counting method according to the embodiment of the present invention; as shown in fig. 4, the state transition process of the state machine may include:
the initial state of the state machine is a no vehicle (nocar) state, and in the nocar state: if the input u (k) is 0, the input u (k) is maintained in nocar state; if the state of the input changes once, i.e. the input u (k) ═ 1, the state jumps to the first (count1) state, i.e. the state switches nocar- > count1, and the counter of count1 state (C1) + 1.
In count1 state: if the continuous input u (k) is 1, C1 continues for + 1; when C1> is equal to N, the state jumps to a vehicle (car) state, namely the state is switched by count1- > car, and the value of C1 is set to zero; if the input u (k) ═ 0 occurs once before C1 reaches N, the state jumps to the second (count0) state, that is, the state is switched from count1- > count0, the value of C1 is set to zero, the counter (C0) +1 of count0 triggers the vehicle entrance/exit counting, and reports the counting result.
In count0 state: if the continuous input u (k) is 0, C0 continues for + 1; when C0> ═ M, the state jumps to nocar, i.e. the state is switched by count0- > nocar, and the value of C0 is set to zero; if the input u (k) ═ 1 and C0< M occur once before C0 reaches M, the state jumps to count1, i.e., the state switches from count0- > count1, and the value of C0 is set to zero, C1+ 1.
In the car state: if the input u (k) is 1, no state transition occurs; if the input u (k) is equal to 0, the state jumps to the third (Count00) state, i.e., the state is switched car- > Count, and controls the counter (C00) +1 in the Count00 state.
In count00 state: if the continuous input u (k) is 0, C00 continues for + 1; and C00> ═ M, the state jumps to nocar, i.e. the state switches count00- > nocar, and C00 is set to zero; if u (k) is 1 and C00< M before C00 reaches M, the state transitions to car.
By adopting the technical scheme of the embodiment of the invention, the two sensors are arranged to detect the passing of the vehicles, and the state switching of the state machine is used for counting the number of the vehicles, namely the statistics of the traffic flow can be realized only by arranging the two sensors; compared with the existing statistical mode of the geomagnetic sensor, the technical scheme of the application realizes accurate statistics of traffic flow and greatly improves statistical efficiency.
The embodiment of the invention also provides traffic flow counting equipment. FIG. 5 is a schematic diagram of a structure of a traffic flow counting device according to an embodiment of the present invention; as shown in fig. 5, the apparatus includes: a data acquisition unit 31, a judgment unit 32, a state machine unit 33, and a statistic unit 34; wherein the content of the first and second substances,
the data acquisition unit 31 is configured to obtain a first distance acquired by the first sensor and a second distance acquired by the second sensor respectively; the first sensor and the second sensor are respectively arranged on two sides of a passage where a vehicle passes through, and the distance between the first sensor and the second sensor meets a preset condition; the first and second distances characterize a width of the lane when no vehicle passes;
the judging unit 32 is configured to judge whether a vehicle passes through according to the first distance and the second distance, and obtain a judgment result;
the state machine unit 33 is configured to control state switching of the state machine unit based on the determination result obtained by the determination unit 32;
the counting unit 34 is configured to count the number of vehicles passing through the lane based on the state switching of the state machine unit 33.
In an embodiment, the determining unit 32 is configured to calculate a sum of the first distance and the second distance, and obtain a first result; calculating the difference between the width of the channel and the first result to obtain a second result; judging whether the second result is within a first preset threshold range or not; when the second result is within the first preset threshold range, determining that a vehicle passes through; and when the second result is not in the first preset threshold range, determining that no vehicle passes through.
In an embodiment, the determining unit 32 is configured to determine whether the first distance and the second distance are both within a second preset threshold range before calculating the sum of the first distance and the second distance; when the first distance and the second distance are both within the second preset threshold range, calculating the sum of the first distance and the second distance.
In one embodiment, the state machine unit 33 is configured to control to input a first value when it is determined that no vehicle passes; when the accumulated number of the input first numerical values is larger than or equal to a first threshold value, controlling to switch to a vehicle-free state; when the vehicle is judged to pass through, controlling to input a second numerical value; and when the accumulated number of the input second numerical values is greater than or equal to a second threshold value, controlling to switch to a vehicle-in state.
In an embodiment, the state machine unit 33 is configured to control to switch to the first state and control the first counter of the first state to increment by one when the second value is input in the no-vehicle state;
when the vehicle is in the first state, if the second numerical value is continuously input, the first counter is controlled to continuously increase by one, and when the numerical value of the first counter is greater than or equal to the second threshold value, the vehicle is controlled to be switched to a vehicle-on state, and the first counter is controlled to be cleared; if the first numerical value is input, controlling to switch to a second state, and controlling a second counter of the second state to increase by one;
when the first counter is in the second state, the first value is continuously input, and the second counter is controlled to continuously increase by one; if the second numerical value is input and the numerical value of the second counter is smaller than the first threshold value, controlling to switch to the first state, controlling to clear the second counter, and increasing one by the first counter; if the numerical value of the second counter is larger than or equal to the first threshold value, controlling to switch to a vehicle-free state, and controlling the second counter to be cleared;
when the vehicle is in the vehicle-in state, if the first numerical value is input, controlling to switch to a third state, and controlling a third counter in the third state to increase by one;
under the third state, if the first numerical value is continuously input, controlling the third counter to continuously increase by one; if the numerical value of the third counter is larger than or equal to the first threshold value, controlling to switch to a no-vehicle state and controlling the third counter to be cleared; and if the second threshold value is input and the numerical value of the third counter is smaller than the first threshold value, controlling to switch to a vehicle-in state.
The counting unit 34 is configured to trigger vehicle counting when the state machine unit 33 switches from the first state to the second state.
In the embodiment of the present invention, the determining Unit 32, the state machine Unit 33, and the statistical Unit 34 in the vehicle flow counting device may be implemented by a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Micro Control Unit (MCU), or a programmable gate Array (FPGA) in the device in practical application; the data acquisition unit 31 in the device can be implemented in practical application by a communication module (including a basic communication suite, an operating system, a communication module, a standardized interface, a protocol and the like) and a transceiver antenna.
It should be noted that: in the traffic flow counting apparatus provided in the above embodiment, when the traffic flow is counted, only the division of the program modules is illustrated, and in practical applications, the processing distribution may be completed by different program modules according to needs, that is, the internal structure of the device may be divided into different program modules to complete all or part of the processing described above. In addition, the traffic flow counting device and the traffic flow counting method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
Fig. 6 is a schematic diagram of a hardware structure of the traffic flow counting device according to the embodiment of the present invention, as shown in fig. 6, the device includes a memory 42, a processor 41, and a computer program stored in the memory 42 and capable of running on the processor 41, and when the processor 41 executes the program, the following are implemented: respectively obtaining a first distance acquired by a first sensor and a second distance acquired by a second sensor; the first sensor and the second sensor are respectively arranged on two sides of a passage where a vehicle passes through, and the distance between the first sensor and the second sensor meets a preset condition; the first and second distances characterize a width of the lane when no vehicle passes; judging whether a vehicle passes through according to the first distance and the second distance to obtain a judgment result; and controlling the state switching of a state machine based on the judgment result, and counting the number of vehicles passing through the channel based on the state switching of the state machine.
In one embodiment, the processor 41, when executing the program, implements: calculating the sum of the first distance and the second distance to obtain a first result; calculating the difference between the width of the channel and the first result to obtain a second result; judging whether the second result is within a first preset threshold range or not; when the second result is within the first preset threshold range, determining that a vehicle passes through; and when the second result is not in the first preset threshold range, determining that no vehicle passes through.
In one embodiment, the processor 41, when executing the program, implements: judging whether the first distance and the second distance are both within a second preset threshold range; when the first distance and the second distance are both within the second preset threshold range, calculating the sum of the first distance and the second distance.
In one embodiment, the processor 41, when executing the program, implements: when no vehicle passes through the control state machine, a first numerical value is input; when the accumulated number of the input first numerical values is larger than or equal to a first threshold value, controlling the state machine to be switched to a vehicle-free state; when the vehicle is judged to pass through, controlling the state machine to input a second numerical value; and when the accumulated number of the input second numerical values is greater than or equal to a second threshold value, controlling the state machine to be switched to a vehicle-in state.
In one embodiment, the processor 41, when executing the program, implements: when the state machine is in a vehicle-free state and the state machine inputs the second numerical value, controlling the state machine to be switched to a first state, and controlling a first counter of the first state to be increased by one;
when the state machine is in the first state, if the state machine continuously inputs the second numerical value, the first counter is controlled to continuously increase by one, and when the numerical value of the first counter is larger than or equal to the second threshold value, the state machine is controlled to be switched to a vehicle-on state, and the first counter is controlled to be cleared; if the state machine inputs the first numerical value, controlling the state machine to be switched to a second state, and controlling a second counter of the second state to increase by one;
when the state machine is in the second state, the state machine continuously inputs the first numerical value, and then the second counter is controlled to continuously increase by one; if the state machine inputs the second numerical value and the numerical value of the second counter is smaller than the first threshold value, controlling the state machine to be switched to the first state, and controlling the second counter to be cleared, wherein the first counter is increased by one; if the value of the second counter is larger than or equal to the first threshold value, controlling the state machine to be switched to a no-vehicle state, and controlling the second counter to be cleared;
when the state machine is in the vehicle-presence state, if the state machine inputs the first numerical value, controlling the state machine to be switched to a third state, and controlling a third counter of the third state to increase by one;
when the state machine is in the third state, if the state machine continuously inputs the first numerical value, controlling the third counter to continuously increase by one; if the numerical value of the third counter is larger than or equal to the first threshold value, controlling the state machine to be switched to a no-vehicle state, and controlling the third counter to be cleared; and if the state machine inputs the second threshold value and the numerical value of the third counter is smaller than the first threshold value, controlling the state machine to be switched to a vehicle-in state.
In one embodiment, the processor 41, when executing the program, implements: triggering a vehicle count when the state machine switches from the first state to the second state.
In this embodiment, the device further comprises a communication component 43 for communicating with other devices in a wired or wireless manner. The traffic counting device may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 43 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the Communication component 43 further comprises a Near Field Communication (NFC) module to facilitate short-range Communication. For example, the NFC module may be implemented based on Radio Frequency IDentification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra WideBand (UWB) technology, BlueTooth (BT) technology, or other technologies.
It is understood that the various components in this embodiment may be coupled together by a bus system 44. It will be appreciated that the bus system 44 is used to enable communications among the components. The bus system 44 includes a power bus, a control bus, and a status signal bus in addition to the data bus. For clarity of illustration, however, the various buses are labeled as bus system 44 in fig. 6.
It will be appreciated that the memory 42 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memory 42 described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.
The method disclosed in the above embodiments of the present invention may be applied to the processor 41, or implemented by the processor 41. The processor 41 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 41. The processor 41 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. Processor 41 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in memory 42, where processor 41 reads the information in memory 42 and in combination with its hardware performs the steps of the method described above.
The embodiment of the invention also provides a traffic flow counting system, which comprises: the device comprises a first sensor for acquiring a first distance, a second sensor for acquiring a second distance and a vehicle flow counting device according to the embodiment of the invention;
the first sensor and the second sensor are respectively arranged on two sides of a passage where a vehicle passes through, and the distance between the first sensor and the second sensor meets a preset condition; the first and second distances are indicative of a width of the passageway when no vehicle is passing.
For the description of the traffic flow counting device in this embodiment, reference may be made to the description of the traffic flow counting device in the foregoing embodiments, and details are not repeated here.
Embodiments of the present invention further provide a computer storage medium having computer instructions stored thereon, where the instructions, when executed by a processor, implement: respectively obtaining a first distance acquired by a first sensor and a second distance acquired by a second sensor; the first sensor and the second sensor are respectively arranged on two sides of a passage where a vehicle passes through, and the distance between the first sensor and the second sensor meets a preset condition; the first and second distances characterize a width of the lane when no vehicle passes; judging whether a vehicle passes through according to the first distance and the second distance to obtain a judgment result; and controlling the state switching of a state machine based on the judgment result, and counting the number of vehicles passing through the channel based on the state switching of the state machine.
In one embodiment, the instructions when executed by the processor implement: calculating the sum of the first distance and the second distance to obtain a first result; calculating the difference between the width of the channel and the first result to obtain a second result; judging whether the second result is within a first preset threshold range or not; when the second result is within the first preset threshold range, determining that a vehicle passes through; and when the second result is not in the first preset threshold range, determining that no vehicle passes through.
In one embodiment, the instructions when executed by the processor implement: judging whether the first distance and the second distance are both within a second preset threshold range; when the first distance and the second distance are both within the second preset threshold range, calculating the sum of the first distance and the second distance.
In one embodiment, the instructions when executed by the processor implement: when no vehicle passes through the control state machine, a first numerical value is input; when the accumulated number of the input first numerical values is larger than or equal to a first threshold value, controlling the state machine to be switched to a vehicle-free state; when the vehicle is judged to pass through, controlling the state machine to input a second numerical value; and when the accumulated number of the input second numerical values is greater than or equal to a second threshold value, controlling the state machine to be switched to a vehicle-in state.
In one embodiment, the instructions when executed by the processor implement: when the state machine is in a vehicle-free state and the state machine inputs the second numerical value, controlling the state machine to be switched to a first state, and controlling a first counter of the first state to be increased by one;
when the state machine is in the first state, if the state machine continuously inputs the second numerical value, the first counter is controlled to continuously increase by one, and when the numerical value of the first counter is larger than or equal to the second threshold value, the state machine is controlled to be switched to a vehicle-on state, and the first counter is controlled to be cleared; if the state machine inputs the first numerical value, controlling the state machine to be switched to a second state, and controlling a second counter of the second state to increase by one;
when the state machine is in the second state, the state machine continuously inputs the first numerical value, and then the second counter is controlled to continuously increase by one; if the state machine inputs the second numerical value and the numerical value of the second counter is smaller than the first threshold value, controlling the state machine to be switched to the first state, and controlling the second counter to be cleared, wherein the first counter is increased by one; if the value of the second counter is larger than or equal to the first threshold value, controlling the state machine to be switched to a no-vehicle state, and controlling the second counter to be cleared;
when the state machine is in the vehicle-presence state, if the state machine inputs the first numerical value, controlling the state machine to be switched to a third state, and controlling a third counter of the third state to increase by one;
when the state machine is in the third state, if the state machine continuously inputs the first numerical value, controlling the third counter to continuously increase by one; if the numerical value of the third counter is larger than or equal to the first threshold value, controlling the state machine to be switched to a no-vehicle state, and controlling the third counter to be cleared; and if the state machine inputs the second threshold value and the numerical value of the third counter is smaller than the first threshold value, controlling the state machine to be switched to a vehicle-in state.
In one embodiment, the instructions when executed by the processor implement: triggering a vehicle count when the state machine switches from the first state to the second state.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (13)
1. A traffic flow counting method, characterized in that the method comprises:
respectively obtaining a first distance acquired by a first sensor and a second distance acquired by a second sensor; the first sensor and the second sensor are respectively arranged on two sides of a passage where a vehicle passes through, and the distance between the first sensor and the second sensor meets a preset condition; the first and second distances characterize a width of the lane when no vehicle passes; the preset conditions include: the distance between the first sensor and the second sensor is larger than the width of the channel and smaller than a preset threshold value;
judging whether a vehicle passes through according to the first distance and the second distance to obtain a judgment result;
controlling the state switching of a state machine based on the judgment result, and counting the number of vehicles passing through the channel based on the state switching of the state machine;
wherein, the judging whether a vehicle passes through according to the first distance and the second distance to obtain a judgment result comprises:
calculating the sum of the first distance and the second distance to obtain a first result;
calculating the difference between the width of the channel and the first result to obtain a second result;
judging whether the second result is within a first preset threshold range or not; when the second result is within the first preset threshold range, determining that a vehicle passes through; and when the second result is not in the first preset threshold range, determining that no vehicle passes through.
2. The method of claim 1, wherein prior to said calculating the sum of said first distance and said second distance, said method further comprises:
judging whether the first distance and the second distance are both within a second preset threshold range;
correspondingly, when the first distance and the second distance are both within the second preset threshold range, the sum of the first distance and the second distance is calculated.
3. The method according to any one of claims 1 to 2, wherein the controlling of the state switching of the state machine based on the determination result comprises:
when no vehicle passes through the control state machine, a first numerical value is input; when the accumulated number of the input first numerical values is larger than or equal to a first threshold value, controlling the state machine to be switched to a vehicle-free state;
when the vehicle is judged to pass through, controlling the state machine to input a second numerical value; and when the accumulated number of the input second numerical values is greater than or equal to a second threshold value, controlling the state machine to be switched to a vehicle-in state.
4. The method of claim 3, further comprising: when the state machine is in a vehicle-free state and the state machine inputs the second numerical value, controlling the state machine to be switched to a first state, and controlling a first counter of the first state to be increased by one;
when the state machine is in the first state, if the state machine continuously inputs the second numerical value, the first counter is controlled to continuously increase by one, and when the numerical value of the first counter is larger than or equal to the second threshold value, the state machine is controlled to be switched to a vehicle-on state, and the first counter is controlled to be cleared; if the state machine inputs the first numerical value, controlling the state machine to be switched to a second state, and controlling a second counter of the second state to increase by one;
when the state machine is in the second state, the state machine continuously inputs the first numerical value, and then the second counter is controlled to continuously increase by one; if the state machine inputs the second numerical value and the numerical value of the second counter is smaller than the first threshold value, controlling the state machine to be switched to the first state, and controlling the second counter to be cleared, wherein the first counter is increased by one; if the value of the second counter is larger than or equal to the first threshold value, controlling the state machine to be switched to a no-vehicle state, and controlling the second counter to be cleared;
when the state machine is in the vehicle-presence state, if the state machine inputs the first numerical value, controlling the state machine to be switched to a third state, and controlling a third counter of the third state to increase by one;
when the state machine is in the third state, if the state machine continuously inputs the first numerical value, controlling the third counter to continuously increase by one; if the numerical value of the third counter is larger than or equal to the first threshold value, controlling the state machine to be switched to a no-vehicle state, and controlling the third counter to be cleared; and if the state machine inputs the second threshold value and the numerical value of the third counter is smaller than the first threshold value, controlling the state machine to be switched to a vehicle-in state.
5. The method of claim 4, wherein the counting the number of vehicles passing through the lane based on the state switching of the state machine comprises:
triggering a vehicle count when the state machine switches from the first state to the second state.
6. A vehicle flow rate counting apparatus, characterized by comprising: the device comprises a data acquisition unit, a judgment unit, a state machine unit and a statistic unit; wherein the content of the first and second substances,
the data acquisition unit is used for respectively acquiring a first distance acquired by the first sensor and a second distance acquired by the second sensor; the first sensor and the second sensor are respectively arranged on two sides of a passage where a vehicle passes through, and the distance between the first sensor and the second sensor meets a preset condition; the first and second distances characterize a width of the lane when no vehicle passes; the preset conditions include: the distance between the first sensor and the second sensor is larger than the width of the channel and smaller than a preset threshold value;
the judging unit is used for judging whether a vehicle passes through according to the first distance and the second distance to obtain a judging result;
the state machine unit is used for controlling the state switching of the state machine unit based on the judgment result obtained by the judgment unit;
the statistical unit is used for carrying out switching statistics on the number of vehicles passing through the channel based on the state of the state machine unit;
the judging unit is used for calculating the sum of the first distance and the second distance to obtain a first result; calculating the difference between the width of the channel and the first result to obtain a second result; judging whether the second result is within a first preset threshold range or not; when the second result is within the first preset threshold range, determining that a vehicle passes through; and when the second result is not in the first preset threshold range, determining that no vehicle passes through.
7. The apparatus according to claim 6, wherein the determining unit is configured to determine whether the first distance and the second distance are both within a second preset threshold range before calculating the sum of the first distance and the second distance; when the first distance and the second distance are both within the second preset threshold range, calculating the sum of the first distance and the second distance.
8. The apparatus according to any one of claims 6 to 7, characterized in that the state machine unit is configured to control to input a first numerical value when it is determined that no vehicle passes; when the accumulated number of the input first numerical values is larger than or equal to a first threshold value, controlling to switch to a vehicle-free state; when the vehicle is judged to pass through, controlling to input a second numerical value; and when the accumulated number of the input second numerical values is greater than or equal to a second threshold value, controlling to switch to a vehicle-in state.
9. The apparatus according to claim 8, wherein the state machine unit is configured to control to switch to a first state and control a first counter of the first state to increment by one when the second value is input in the no-vehicle state;
when the vehicle is in the first state, if the second numerical value is continuously input, the first counter is controlled to continuously increase by one, and when the numerical value of the first counter is greater than or equal to the second threshold value, the vehicle is controlled to be switched to a vehicle-on state, and the first counter is controlled to be cleared; if the first numerical value is input, controlling to switch to a second state, and controlling a second counter of the second state to increase by one;
when the first counter is in the second state, the first value is continuously input, and the second counter is controlled to continuously increase by one; if the second numerical value is input and the numerical value of the second counter is smaller than the first threshold value, controlling to switch to the first state, controlling to clear the second counter, and increasing one by the first counter; if the numerical value of the second counter is larger than or equal to the first threshold value, controlling to switch to a vehicle-free state, and controlling the second counter to be cleared;
when the vehicle is in the vehicle-in state, if the first numerical value is input, controlling to switch to a third state, and controlling a third counter in the third state to increase by one;
under the third state, if the first numerical value is continuously input, controlling the third counter to continuously increase by one; if the numerical value of the third counter is larger than or equal to the first threshold value, controlling to switch to a no-vehicle state and controlling the third counter to be cleared; and if the second threshold value is input and the numerical value of the third counter is smaller than the first threshold value, controlling to switch to a vehicle-in state.
10. The apparatus of claim 9, wherein the statistics unit is configured to trigger a vehicle count when the state machine unit switches from the first state to the second state.
11. A traffic counting device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the traffic counting method according to any one of claims 1 to 5 are implemented by the processor when executing said program.
12. A traffic flow counting system, characterized in that the system comprises: a first sensor for acquiring a first distance, a second sensor for acquiring a second distance and a flow counting device comprising any one of claims 6 to 10;
the first sensor and the second sensor are respectively arranged on two sides of a passage where a vehicle passes through, and the distance between the first sensor and the second sensor meets a preset condition; the first and second distances are indicative of a width of the passageway when no vehicle is passing.
13. A computer storage medium having computer instructions stored thereon, wherein the instructions, when executed by a processor, perform the steps of the traffic flow counting method according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553531.1A CN110556006B (en) | 2018-05-31 | 2018-05-31 | Traffic flow counting method, system, equipment and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553531.1A CN110556006B (en) | 2018-05-31 | 2018-05-31 | Traffic flow counting method, system, equipment and computer storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110556006A CN110556006A (en) | 2019-12-10 |
| CN110556006B true CN110556006B (en) | 2021-05-25 |
Family
ID=68734794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810553531.1A Active CN110556006B (en) | 2018-05-31 | 2018-05-31 | Traffic flow counting method, system, equipment and computer storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110556006B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112863200B (en) * | 2020-12-30 | 2022-06-10 | 浙江大华技术股份有限公司 | Vehicle counting method, device, system, equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202133377U (en) * | 2011-07-04 | 2012-02-01 | 江苏南大尚诚高科技实业有限公司 | Super-wide and super-high quantitative detection device for vehicle |
| CN102368687A (en) * | 2011-09-23 | 2012-03-07 | 烽火通信科技股份有限公司 | Packet loss preventing statistical method and device |
| CN104485002A (en) * | 2014-12-12 | 2015-04-01 | 清华大学苏州汽车研究院（吴江） | Traffic flow detecting system based on PSD (position-sensitive detector) |
| CN105006150A (en) * | 2015-08-06 | 2015-10-28 | 武汉万集信息技术有限公司 | Method and device for detecting number of vehicle axles |
| CN107111942A (en) * | 2015-01-09 | 2017-08-29 | 罗伯特·博世有限公司 | For detecting motor vehicle by the current method and apparatus of traffic sign door |
| CN107886726A (en) * | 2017-07-06 | 2018-04-06 | 杭州盛棠信息科技有限公司 | Road occupying/parking behavior detection method and device |
-
2018
- 2018-05-31 CN CN201810553531.1A patent/CN110556006B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202133377U (en) * | 2011-07-04 | 2012-02-01 | 江苏南大尚诚高科技实业有限公司 | Super-wide and super-high quantitative detection device for vehicle |
| CN102368687A (en) * | 2011-09-23 | 2012-03-07 | 烽火通信科技股份有限公司 | Packet loss preventing statistical method and device |
| CN104485002A (en) * | 2014-12-12 | 2015-04-01 | 清华大学苏州汽车研究院（吴江） | Traffic flow detecting system based on PSD (position-sensitive detector) |
| CN107111942A (en) * | 2015-01-09 | 2017-08-29 | 罗伯特·博世有限公司 | For detecting motor vehicle by the current method and apparatus of traffic sign door |
| CN105006150A (en) * | 2015-08-06 | 2015-10-28 | 武汉万集信息技术有限公司 | Method and device for detecting number of vehicle axles |
| CN107886726A (en) * | 2017-07-06 | 2018-04-06 | 杭州盛棠信息科技有限公司 | Road occupying/parking behavior detection method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110556006A (en) | 2019-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9922556B2 (en) | Traffic light system and method | |
| CN111105639B (en) | Parking space state detection method and device, vehicle guiding method and system and camera | |
| US20190308616A1 (en) | Vehicle control method and apparatus, and storage medium | |
| CN104134371A (en) | Method and device for early warning of vehicle collision | |
| CN107945541A (en) | Traffic lights regulation and control method, system and computer-readable recording medium | |
| CN110036429B (en) | Driving support system and driving support device | |
| GB2564245A (en) | Tracking hit and run perpetrators using V2X communication | |
| CN109080640A (en) | For providing the method for lethargic sleep alarm in vehicle | |
| CN106960602A (en) | Carry out driving method, mobile unit and the device of early warning in vehicle travel process | |
| KR20140123088A (en) | Method for automatically monitoring vehicle parking | |
| KR20150028258A (en) | Method and system for information usage | |
| CN110556006B (en) | Traffic flow counting method, system, equipment and computer storage medium | |
| CN110874543B (en) | Method, device and system for detecting overload of passenger car | |
| CN105389983A (en) | Road traffic information collection method and system based on vehicular unit and roadside units | |
| TWI774034B (en) | Driving warning method, system and equipment based on internet of vehicle | |
| CN115394117B (en) | Vehicle obstacle early warning method and system | |
| KR20120073299A (en) | Improving reliability of travel time estimation | |
| US20060235612A1 (en) | Method and system for detecting the presence of a disruptive object and activation module for this system | |
| US20200378774A1 (en) | Method for allocating shareable vehicles in preset areas and electronic device employing the method | |
| US10807567B2 (en) | Vehicle proximity tracking | |
| GB2550297A (en) | State monitoring device, state monitoring system and train | |
| KR20150067675A (en) | Method and Apparatus for Setting Green-Zone for Providing Eco-Environmental Traffic Service | |
| CN114170807A (en) | Vehicle track information acquisition method, device, equipment and storage medium | |
| JP2018018128A (en) | Information providing method and information providing device | |
| CN112710324B (en) | Block chain traceability technology-based geomagnetic positioning and intelligent terminal construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |