Intelligent lifting garage management system

Abstract

The invention relates to the technical field of garage management, in particular to an intelligent lifting garage management system which comprises a data acquisition unit used for acquiring garage entering vehicle information; the path construction unit is used for generating a vehicle parking path according to the vehicle queuing number, adjusting the modeling length of an overlapping area of the vehicle parking path according to the average time difference between the vehicle head sampling moment and the vehicle first image capturing moment, or adjusting the path updating frequency according to the vehicle parking speed; and the control unit is used for determining a garage lifting regulation and control mode according to the vehicle queuing number, including adjusting the minimum lifting parking space interval column number of the control area, or determining a response mode of the garage, including adjusting the response mode of the garage from a vehicle entering sequence to a reciprocating response mode, and determining a garage exiting priority. The garage entering and exiting efficiency is improved, and the garage operation stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of garage management, and in particular to an intelligent lifting garage management system. Background Art

[0002] In the prior art, the lift garage management system is an automated system that utilizes mechanical equipment such as lifts and transverse trolleys to achieve vertical and horizontal movement of vehicles, thereby efficiently utilizing space to park vehicles. It is widely used in areas with high parking demand and tight land resources, such as city centers, commercial areas, and residential areas.

[0003] Chinese Patent Publication No.: CN118314729A discloses a smart stereo garage system and construction method based on digital twins, including a smart box, a user application end, a cloud service system, a parking scheduling management system and a stereo parking lot. The parking scheduling management system includes a database, a car digital twin, a stereo garage digital twin, a car digital twin and a stereo garage digital twin parking data matching, stereo garage sensor detection data, a data mapping system, an abnormal warning, and an optimal parking plan. The stereo parking lot includes a physical space stereo garage, a lifting system, a laser positioning sensor, and a ground sensing coil. The user application end includes an L3 level and above autonomous driving car, and an L3 level and below autonomous driving car. It can be seen that the smart stereo garage system and construction method based on digital twins have the problem that the vehicle path guidance is not timely due to the delay in data transmission, and the garage lifting frequency is increased and the response is slow due to the large traffic volume, which leads to a decrease in the efficiency of entering and leaving the warehouse. Summary of the invention

[0004] To this end, the present invention provides an intelligent lift garage management system to overcome the problems in the prior art of untimely path guidance for vehicles due to delays in data transmission, increased garage lift frequency and slow response due to heavy traffic, and thus reduced efficiency in entering and leaving the garage.

[0005] To achieve the above object, the present invention provides an intelligent lift garage management system, comprising: A data collection unit is used to collect information about vehicles entering the garage, including images of vehicles at the garage entrance, the number of vehicles in the queue, information about vehicles heading in the parking spaces, and the time when the front of the vehicle is sampled; a path construction unit connected to the data acquisition unit, for generating a vehicle entry path according to the number of vehicles in the queue, adjusting the modeling length of the overlapped area of ​​the vehicle entry path according to the average time difference between the time when the vehicle head is sampled and the time when the vehicle is first imaged, or adjusting the path update frequency according to the vehicle entry speed; A control unit is connected to the data acquisition unit and the path construction unit respectively, and is used to determine the garage lifting and regulating mode according to the vehicle in-and-out ratio, including adjusting the minimum number of lifting and lowering parking spaces in the control area, Or, the response mode of the garage is determined according to the garage lifting frequency, including adjusting the garage response mode from the vehicle entry sequence to a reciprocating response mode, and determining the exit priority according to the number of forward vehicles in the control area.

[0006] Furthermore, the path construction unit is connected to the data acquisition unit to obtain the sampling moments of several vehicles and the moments when the vehicles are first image-captured, and calculate the average value of the difference between the moment when the vehicles are first image-captured and the sampling moment, which is recorded as the average time difference; If the average time difference is greater than the preset first average time difference, it is determined that the accuracy of the data transmission does not meet the requirements; If the average time difference is greater than the preset second average time difference, the modeling length of the overlapping area of ​​the vehicle entry path is increased. Wherein, the preset first average time difference is smaller than the preset second average time difference.

[0007] Furthermore, the modeling length of the overlapped area is the actual length of the modeling section of the vehicle entry path updated once in the overlapped area of ​​the vehicle images captured by two adjacent image acquisition devices; The modeling length of the overlapping area of ​​the vehicle entry path is positively correlated with the average time difference.

[0008] Furthermore, the path construction unit is connected to the data collection unit to preliminarily determine that the real-time performance of data collection does not meet the requirements under the condition that the average time difference is greater than the preset first average time difference and less than or equal to the preset second average time difference, and obtain the entry speed of a single vehicle when entering the warehouse. If the warehousing speed is greater than the preset speed, it is determined that the real-time performance of data collection does not meet the requirements, and the path update frequency is increased.

[0009] Furthermore, the storage speed is the ratio of the vehicle body length to the vehicle body storage time; The path updating frequency is positively correlated with the storage speed.

[0010] Furthermore, the control unit is connected to the data acquisition unit to obtain the number of vehicles in the queue and the number of vehicles leaving the garage within the same detection time, and calculate the in-and-out ratio. If the in-and-out ratio is greater than or equal to a preset first ratio, it is determined that the operating load of the garage does not meet the requirements. If the in-and-out ratio is greater than or equal to a preset second ratio, the minimum number of lift parking spaces in the control area is increased; Among them, the preset first ratio is smaller than the preset second ratio; the in-and-out ratio is the ratio of the number of vehicles in the queue to the number of vehicles leaving the warehouse within the same detection time.

[0011] Furthermore, the minimum number of parking spaces between lifts is the minimum number of parking spaces between lifts that perform lifting operations at the same time and meet preset lifting frame spacing conditions; the minimum number of parking spaces between lifts is positively correlated with the in-and-out ratio; The preset lifting frame spacing condition is that there is no lifting frame in operation between two lifting frames.

[0012] Furthermore, the control unit is connected to the path construction unit to obtain the garage lifting frequency when the in-and-out ratio is greater than or equal to the preset first ratio and less than the preset second ratio. If the garage lifting frequency is greater than or equal to the preset frequency, it is determined that the garage response efficiency does not meet the requirements, and the garage response mode is adjusted from a garage response mode according to the order of vehicle entry into the garage to a response mode according to a reciprocating response. The reciprocating response is that the parking space of the lift garage moves horizontally in a fixed direction from left to right and responds to vehicle requests along the way in turn, and then moves in the reverse direction after moving to the rightmost end.

[0013] Furthermore, the control area is composed of a number of parking spaces whose control area width is greater than or equal to a preset width, whose control area height is greater than or equal to a preset height, and whose control area length is greater than a preset length.

[0014] Furthermore, the control unit is connected to the data acquisition unit to obtain the number of forward vehicles in each of the control areas, and sort the control areas from large to small according to the number of forward vehicles in the control areas, so as to serve as the outbound priority sorting of the control areas in executing the reciprocating response. The forward vehicle refers to a vehicle whose front end is facing the direction of the parking entrance when the vehicle is parked in the parking space.

[0015] Compared with the prior art, the beneficial effect of the present invention is that the system of the present invention obtains the number of queues and dynamic driving information through the data acquisition unit by setting a data acquisition unit, a path construction unit and a control unit, and the path construction unit can quickly and accurately plan the optimal entry path, effectively avoiding the problem of untimely path guidance caused by data transmission delay; due to the different influences of magnetic fields of different height models on the camera during the process of the vehicle passing through the data acquisition unit, the storage writing or recognition delay of the image acquisition leads to information transmission delay, and the characteristic parameters of the actual driving state of the vehicle collected by the data acquisition unit are delayed, and the problem of slow path update efficiency caused by information delay is solved by adjusting the path update frequency and unit length; due to the large traffic volume, the garage lifting frequency increases, which leads to the increase in the garage movement frequency and the decrease in the structural stability of the garage, and by adjusting the minimum number of lifting parking space intervals in the control area, the amplitude of the garage shaking caused by the frequent lifting of the garage is reduced, and due to the slow response of the garage during the time period of large traffic volume, the garage response mode is adjusted from the garage response mode according to the vehicle entry sequence to the reciprocating response and the outbound priority is re-determined, so as to improve the inbound and outbound efficiency of the lifting garage.

[0016] Furthermore, the system of the present invention determines that the accuracy of data transmission does not meet the requirements. Since the data acquisition unit has a data transmission process when collecting information and capturing images, the vehicle may be close to the image acquisition device during the process of entering or leaving the warehouse, thereby generating network interference to the image acquisition process. Different heights of the vehicles result in different interference areas, which leads to increased electromagnetic interference. The above problems lead to delays in data transmission. In order to ensure the accuracy of path construction, the path construction unit needs to monitor the accuracy of data transmission in real time. When it is detected that the delay of data transmission exceeds the preset range, it is determined that the accuracy of data transmission does not meet the requirements. By increasing the modeling length of the overlapped area of ​​path construction, the path guidance error caused by data delay is reduced. The increase in the modeling length of the overlapped area will be dynamically adjusted according to the size of the average time difference. The larger the average time difference, the more the modeling length of the overlapped area is increased, so as to ensure that the real-time update of the path is consistent with the actual driving state of the vehicle, that is, the modeling length of the overlapped area between adjacent cameras is increased to increase the estimated value of the path generation length, so as to adapt to the data delay condition in a more timely manner, further achieving the corresponding effect between the real-time update state of the path and the actual driving state of the vehicle, thereby achieving the increase in the accuracy of data transmission.

[0017] Furthermore, the system of the present invention determines whether the timeliness of data collection meets the requirements. Since the vehicle enters the warehouse at a high speed and the frequency of passing vehicles increases, there is a time difference between the image information captured by the data collection unit and the actual vehicle driving status due to vehicle network interference. If the average time difference is too large, it will cause information lag in path construction. By setting a preset second average time difference, the path update frequency is increased to reduce the path guidance error caused by data lag, thereby achieving an increase in the timeliness of data collection.

[0018] Furthermore, the system of the present invention increases the minimum number of lifting parking space intervals in the control area as the number of vehicles entering the garage increases. When the number of vehicles in the garage increases, especially during peak hours, frequent entry and exit and lifting operations of vehicles will cause slight shaking of the overall structure of the garage, thereby ensuring smooth entry of vehicles and the stability of vehicles in the parking spaces, reducing damage to vehicles caused by shaking, and improving the operating stability of the garage.

[0019] Furthermore, the system of the present invention improves the efficiency of entry and exit of the lift garage by determining the response efficiency of the garage, adjusting it to a reciprocating response, and redetermining the exit priority of the control area. When responding to the entry request, the garage is adjusted to the lift garage to run in a fixed direction to the end point and then reverse according to the current state of the garage and the needs of the vehicle, wherein the vehicle entry operation is performed in sequence, thereby reducing the number of turns of the mobile unit and improving the operation efficiency; by obtaining the number of forward vehicles in the control area and sorting them from large to small according to the number of forward vehicles, the sorted order is the exit priority order of the control area. When the garage faces a large number of exit requests, by giving priority to the area with the largest number of vehicles, the waiting time of the vehicle is reduced, the operation smoothness of the entire garage is improved, and the efficiency of entry and exit is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall structural diagram of an intelligent lift garage management system according to an embodiment of the present invention; Figure 2 It is a logic flow chart of a path construction unit of an intelligent lift garage management system according to an embodiment of the present invention; Figure 3 A partial schematic diagram of a lift garage of an intelligent lift garage management system according to an embodiment of the present invention; Figure 4 It is a partial schematic diagram of a lift garage from another angle of the intelligent lift garage management system according to an embodiment of the present invention; Explanation of the accompanying figures: 1-lifting frame, 2-transverse frame, 3-support frame. DETAILED DESCRIPTION

[0021] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0023] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, they are respectively an overall structural block diagram of an intelligent lift garage management system according to an embodiment of the present invention, a logical flow chart of a path construction unit, a partial schematic diagram of a lift garage, and a partial schematic diagram of a lift garage from another angle. An intelligent lift garage management system according to an embodiment of the present invention comprises: A data collection unit is used to collect information about vehicles entering the garage, including images of vehicles at the garage entrance, the number of vehicles in the queue, information about vehicles heading in the parking spaces, and the time when the front of the vehicle is sampled; A path construction unit connected to the data acquisition unit is used to generate a vehicle entry path according to the number of vehicles in the queue, adjust the modeling length of the overlapping area of ​​the vehicle entry path according to the average time difference between the time when the vehicle head is sampled and the time when the vehicle is first imaged, or adjust the path update frequency according to the vehicle entry speed; A control unit is connected to the data acquisition unit and the path construction unit respectively, and is used to determine the garage lifting and regulating mode according to the vehicle in-and-out ratio, including adjusting the minimum number of lifting and lowering parking spaces in the control area, Or, the response mode of the garage is determined according to the garage lifting frequency, including adjusting the garage response mode from the vehicle entry sequence to a reciprocating response mode, and determining the exit priority according to the number of forward vehicles in the control area.

[0026] Specifically, the garage also includes a mobile unit for adjusting the lifting height and horizontal position of the parking space.

[0027] Specifically, the direction of the front of the vehicle on the parking space is detected by the parking detection component, and the moment when the front of the vehicle is sampled is detected by the gravity sensor.

[0028] Specifically, optional embodiments of the parking detection component include a camera, a geomagnetic sensor, and an ultrasonic locator. The preferred embodiment of the parking detection component is a geomagnetic sensor. The present invention does not limit the setting position of the parking detection component on the parking space, as long as it can detect the direction of the front of the vehicle on the parking space.

[0029] Specifically, the sampling position is set on the travel path between the storage entrance and the mobile unit.

[0030] Specifically, the establishment of the vehicle entry path can be planned based on the A* algorithm or the Dijkstra algorithm and established through ArcGIS software or the Ketuo system.

[0031] Specifically, the mobile unit includes: A plurality of transverse moving frames 2, used for moving the parking spaces in the horizontal direction; A plurality of lifting frames 1, which are connected to the transverse frame and are used to move the parking space in the vertical direction; A transverse motor connected to the transverse frame to provide driving force for the transverse frame; A lifting motor connected to the lifting frame to provide driving force for the lifting frame; The support frame 3 is connected to the bottom transverse frame and is used to fix the bottom transverse frame on the ground.

[0032] Specifically, the power requirement for driving the mobile unit is three-phase five-wire AC380V 50Hz.

[0033] Specifically, the motor output power of the transverse motor is 0.2KW, and the motor output power of the lifting motor is 2.2KW.

[0034] Specifically, the maximum lateral speed of the lateral moving frame shall not exceed 8m / min, and the maximum lifting speed of the lifting frame shall not exceed 4m / min.

[0035] Specifically, a preferred embodiment of the control unit is a PLC controller.

[0036] Specifically, the parameters of various types of vehicles applicable to the intelligent lift garage of the present invention are shown in the following table: Table 1 Parameters of various types of vehicles applicable to intelligent lifting garages

[0037] Specifically, the applicable parameters of the garage capacity of the intelligent lift garage of the present invention are shown in the following table: Table 2 Applicable parameters of garage capacity of intelligent lifting garage

[0038] In implementation, the system of the present invention is provided with a data acquisition unit, a path construction unit and a control unit, and the number of queues and dynamic driving information are obtained through the data acquisition unit. The path construction unit can quickly and accurately plan the optimal entry path, effectively avoiding the problem of untimely path guidance caused by data transmission delay; due to the different influences of magnetic fields of different height models on the camera during the process of the vehicle passing through the data acquisition unit, the storage writing or recognition delay of the image acquisition leads to information transmission delay, and the characteristic parameters of the actual driving state of the vehicle collected by the data acquisition unit are delayed. By adjusting the path update frequency and unit length, the problem of low efficiency of slow path update caused by information delay is solved; due to the large traffic volume, the frequency of garage lifting increases, which leads to the increase in the frequency of garage movement and the decrease in the structural stability of the garage. By adjusting the minimum number of lifting and lowering parking spaces in the control area, the amplitude of garage shaking caused by frequent lifting and lowering of the garage is reduced. Due to the slow response of the garage during the time period with large traffic volume, the garage response mode is adjusted from the garage response mode according to the vehicle entry sequence to the reciprocating response and the exit priority is re-determined, so as to improve the entry and exit efficiency of the lifting garage.

[0039] Specifically, the intelligent lift garage management system of the present invention further includes a display unit connected to the path construction unit for issuing a path guidance signal.

[0040] Specifically, an embodiment of the display unit is an indicator light or an indicator screen arranged on the ground.

[0041] In implementation, the system of the present invention sends out a path guidance signal by setting a display unit to intuitively display the vehicle entry path, thereby improving the entry efficiency. It also displays the current status of the garage, including the occupancy of parking spaces, the response status of the garage, etc., thereby achieving improved accuracy and efficiency of vehicle entry.

[0042] Specifically, the data acquisition unit includes a plurality of cameras arranged along the path between the storage position and the parking space.

[0043] Specifically, the path construction unit is connected to the data acquisition unit to obtain the sampling moments of several vehicles and the moments when the vehicles are first image-captured, and calculate the average value of the difference between the moment when the vehicles are first image-captured and the sampling moment, which is recorded as the average time difference; If the average time difference is greater than the preset first average time difference, it is determined that the accuracy of the data transmission does not meet the requirements; If the average time difference is greater than the preset second average time difference, the modeling length of the overlapping area of ​​the vehicle entry path is increased. Wherein, the preset first average time difference is smaller than the preset second average time difference.

[0044] Specifically, the modeling length of the overlapped area is the actual length of the modeling section of the vehicle entry path updated once in the overlapped area of ​​the vehicle images captured by two adjacent image acquisition devices; The modeling length of the overlapping area of ​​the vehicle entry path is positively correlated with the average time difference.

[0045] Specifically, the sampling time is the time when the front of the vehicle passes the gravity sensor.

[0046] Specifically, the modeling length of the overlap area can be increased by adding nodes on the path or by increasing the overlap area of ​​the images of two adjacent cameras.

[0047] Specifically, the general value range of the preset first average time difference is [8ms, 11ms], and the general value range of the preset second average time difference is [18ms, 22ms].

[0048] Preferably, the preferred embodiment of the preset first average time difference is 10 ms, and the preferred embodiment of the preset second average time difference is 20 ms.

[0049] During implementation, when the difference between the average time difference and the preset second average time difference is within 1ms, the modeling length of the overlapping area increases by 0.1m. When the difference between the average time difference and the preset second average time difference exceeds 1ms, the modeling length of the overlapping area increases by 0.2m for every 1ms exceeding it. For example, if the average time difference is 22ms and the current modeling length of the overlapping area is 2m, the modeling length of the overlapping area increases to 2m+0.1m+0.2m=2.3m.

[0050] In implementation, the system of the present invention determines that the accuracy of data transmission does not meet the requirements. Since there is a data transmission process when the data acquisition unit collects information and captures images, the distance between the vehicle entering or leaving the warehouse may be close to the image acquisition device, thereby generating network interference to the image acquisition process. Different heights of the vehicles cause different interference areas, resulting in increased electromagnetic interference. The above problems lead to delays in data transmission. In order to ensure the accuracy of path construction, the path construction unit needs to monitor the accuracy of data transmission in real time. When it is detected that the delay in data transmission exceeds the preset range, it is determined that the accuracy of data transmission does not meet the requirements. By increasing the modeling length of the overlapped area of ​​path construction, the path guidance error caused by data delay is reduced. The increase in the modeling length of the overlapped area will be dynamically adjusted according to the size of the average time difference. The larger the average time difference, the more the modeling length of the overlapped area is increased, so as to ensure that the real-time update of the path is consistent with the actual driving state of the vehicle, that is, the modeling length of the overlapped area between adjacent cameras is increased to increase the estimated value of the path generation length, so as to adapt to the data delay more timely, further achieving the corresponding effect between the real-time update state of the path and the actual driving state of the vehicle, thereby achieving the increase in the accuracy of data transmission.

[0051] Specifically, the path construction unit is connected to the data collection unit, and is used to preliminarily determine that the real-time performance of data collection does not meet the requirements under the condition that the average time difference is greater than the preset first average time difference and less than or equal to the preset second average time difference, and obtain the entry speed of a single vehicle when entering the warehouse. If the warehousing speed is greater than the preset speed, it is determined that the real-time performance of data collection does not meet the requirements, and the path update frequency is increased.

[0052] Specifically, the storage speed is the ratio of the vehicle body length to the vehicle body storage time; The path updating frequency is positively correlated with the storage speed.

[0053] Specifically, the path update frequency is the number of updates per second when generating the vehicle entry path.

[0054] Specifically, the warehousing speed is detected by a camera installed at the entrance.

[0055] Specifically, the general value range of the preset speed is [7km / h, 11km / h], and the preferred embodiment of the preset speed is 8km / h.

[0056] During implementation, when the difference between the entry speed and the preset speed is within 1 km / h, the path update frequency increases by 4 times / s. When the difference between the entry speed and the preset speed exceeds 1 km / h, the path update frequency increases by 5 times / s for every 1 km / h exceeding the speed. For example, if the entry speed is 10 km / h and the current path update frequency is 45 times / s, the path update frequency increases to 45 times / s+4 times / s+5 times / s=54 times / s.

[0057] In implementation, the system of the present invention determines whether the timeliness of data collection meets the requirements. Since the vehicle travels at a high speed when entering the warehouse, the frequency of passing vehicles increases, resulting in a time difference between the image information captured by the data collection unit and the actual vehicle driving status due to vehicle network interference. If the average time difference is too large, it will cause information lag in path construction. By setting a preset second average time difference, the path update frequency is increased to reduce the path guidance error caused by data lag, thereby achieving an increase in the timeliness of data collection.

[0058] Specifically, the control unit is connected to the data acquisition unit to obtain the number of vehicles in the queue and the number of vehicles leaving the garage within the same detection time, and calculate the in-and-out ratio. If the in-and-out ratio is greater than or equal to a preset first ratio, it is determined that the operating load of the garage does not meet the requirements. If the in-and-out ratio is greater than or equal to a preset second ratio, the minimum number of lift parking spaces in the control area is increased; Among them, the preset first ratio is smaller than the preset second ratio; the in-and-out ratio is the ratio of the number of vehicles in the queue to the number of vehicles leaving the warehouse within the same detection time.

[0059] Specifically, the minimum number of parking spaces between lifts is the minimum number of parking spaces between lifts that perform lift operations at the same time and meet preset lift spacing conditions; the minimum number of parking spaces between lifts is positively correlated with the in-and-out ratio; The preset lifting frame spacing condition is that there is no lifting frame in operation between two lifting frames.

[0060] Specifically, the general value range of the preset ratio is [1.2, 1.24], and the preferred embodiment of the preset ratio is 1.22.

[0061] During implementation, for every 0.1 increase in the difference between the in-and-out ratio and the preset ratio, the minimum number of lift spaces will increase by one train space.

[0062] In practice, the system of the present invention increases the minimum number of lifting parking space intervals in the control area as the number of vehicles entering the garage increases. When the number of vehicles in the garage increases, especially during peak hours, frequent entry and exit and lifting operations of vehicles will cause slight shaking of the overall structure of the garage, ensuring smooth entry of vehicles and the stability of vehicles in the parking spaces, reducing damage to vehicles caused by shaking, and achieving improved operational stability of the garage.

[0063] Specifically, the control unit is connected to the path construction unit to obtain the garage lifting frequency when the in-and-out ratio is greater than or equal to the preset first ratio and less than the preset second ratio. If the garage lifting frequency is greater than or equal to the preset frequency, it is determined that the garage response efficiency does not meet the requirements, and the garage response mode is adjusted from a garage response mode according to the order of vehicle entry into the garage to a response mode according to a reciprocating response. The reciprocating response is that the parking space of the lift garage moves horizontally in a fixed direction from left to right and responds to vehicle requests along the way in turn, and then moves in the reverse direction after moving to the rightmost end.

[0064] Specifically, the control area is composed of a number of parking spaces whose control area width is greater than or equal to a preset width, whose control area height is greater than or equal to a preset height, and whose control area length is greater than a preset length.

[0065] Specifically, the value range of the preset width is shown as the control zone width in the garage capacity applicable parameter table of the intelligent lifting garage in Table 2, the value range of the preset height is shown as the control zone height in Table 2, and the value range of the preset length is shown as the control zone length in Table 2.

[0066] Specifically, the general value range of the preset path update frequency is [4 times / s, 8 times / s], and the preferred embodiment of the preset path update frequency is 6 times / s.

[0067] Specifically, the control unit is connected to the data acquisition unit to obtain the number of forward vehicles in each control area, and sort the control areas from large to small according to the number of forward vehicles in the control area, so as to serve as the outbound priority sorting of the control areas in executing the reciprocating response. The forward vehicle refers to a vehicle whose front end is facing the direction of the parking entrance when the vehicle is parked in the parking space.

[0068] Specifically, when several control areas are sorted from large to small according to the number of forward vehicles in the control area, if an equal number of forward vehicles appears, then in the reciprocating response method, the equal number of forward vehicles in the same priority level will be responded to in sequence along the way according to the outbound priority level, and after responding to all control areas with the same outbound priority level, the next outbound priority level will be responded to.

[0069] In practice, the system of the present invention improves the efficiency of entry and exit of the lift garage by determining the response efficiency of the garage, adjusting it to a reciprocating response, and redetermining the exit priority of the control area. When responding to the entry request, the garage adjusts the lift garage to run in a fixed direction to the end point and then reverses according to the current state of the garage and the needs of the vehicle, wherein the vehicle entry operation is performed in sequence, thereby reducing the number of turns of the mobile unit and improving the operation efficiency; by obtaining the number of forward vehicles in the control area and sorting them from large to small according to the number of forward vehicles, the sorted order is the exit priority order of the control area. When the garage faces a large number of exit requests, by giving priority to the area with the largest number of vehicles, the waiting time of the vehicle is reduced, the operation smoothness of the entire garage is improved, and the efficiency of entry and exit is further improved.

[0070] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An intelligent lift garage management system, characterized in that: include: A data collection unit is used to collect information about vehicles entering the garage, including images of vehicles at the garage entrance, the number of vehicles in the queue, information about vehicles heading in the parking spaces, and the time when the front of the vehicle is sampled; a path construction unit connected to the data acquisition unit, for generating a vehicle entry path according to the number of vehicles in the queue, adjusting the modeling length of the overlapped area of ​​the vehicle entry path according to the average time difference between the time when the vehicle head is sampled and the time when the vehicle is first imaged, or adjusting the path update frequency according to the vehicle entry speed; A control unit is connected to the data acquisition unit and the path construction unit respectively, and is used to determine the garage lifting and regulating mode according to the vehicle in-and-out ratio, including adjusting the minimum number of lifting and lowering parking spaces in the control area, Or, the response mode of the garage is determined according to the garage lifting frequency, including adjusting the garage response mode from the vehicle entry sequence to a reciprocating response mode, and determining the exit priority according to the number of forward vehicles in the control area.

2. The intelligent lift garage management system according to claim 1 is characterized in that: The path construction unit is connected to the data acquisition unit, and is used to obtain the sampling time of several vehicles and the time when the vehicles are first image-captured, and calculate the average value of the difference between the time when the vehicles are first image-captured and the sampling time, which is recorded as the average time difference; If the average time difference is greater than the preset first average time difference, it is determined that the accuracy of the data transmission does not meet the requirements; If the average time difference is greater than the preset second average time difference, the modeling length of the overlapping area of ​​the vehicle entry path is increased. Wherein, the preset first average time difference is smaller than the preset second average time difference.

3. The intelligent lift garage management system according to claim 2 is characterized in that: The modeling length of the overlapped area is the actual length of the modeling section of the vehicle entry path updated once in the overlapped area of ​​the vehicle images captured by two adjacent image acquisition devices; The modeling length of the overlapping area of ​​the vehicle entry path is positively correlated with the average time difference.

4. The intelligent lift garage management system according to claim 3 is characterized in that: The path construction unit is connected to the data collection unit, and is used to preliminarily determine that the real-time performance of data collection does not meet the requirements under the condition that the average time difference is greater than the preset first average time difference and less than or equal to the preset second average time difference, and obtain the entry speed of a single vehicle when entering the warehouse. If the warehousing speed is greater than the preset speed, it is determined that the real-time performance of data collection does not meet the requirements, and the path update frequency is increased.

5. The intelligent lift garage management system according to claim 4 is characterized in that: The storage speed is the ratio of the vehicle body length to the vehicle body storage time; The path updating frequency is positively correlated with the storage speed.

6. The intelligent lift garage management system according to claim 5 is characterized in that: The control unit is connected to the data acquisition unit to obtain the number of vehicles in the queue and the number of vehicles leaving the garage within the same detection time, and calculate the ratio of entering and leaving the garage. If the ratio of entering and leaving the garage is greater than or equal to a preset first ratio, it is determined that the operation load of the garage does not meet the requirements. If the in-and-out ratio is greater than or equal to a preset second ratio, the minimum number of lift parking spaces in the control area is increased; Among them, the preset first ratio is smaller than the preset second ratio; the in-and-out ratio is the ratio of the number of vehicles in the queue to the number of vehicles leaving the warehouse within the same detection time.

7. The intelligent lift garage management system according to claim 6 is characterized in that: The minimum number of parking spaces between lifts is the minimum number of parking spaces between lifts that perform lift operations at the same time and meet preset lift spacing conditions; the minimum number of parking spaces between lifts is positively correlated with the in-and-out ratio; The preset lifting frame spacing condition is that there is no lifting frame in operation between two lifting frames.

8. The intelligent lift garage management system according to claim 7 is characterized in that: The control unit is connected to the path construction unit, and is used to obtain the garage lifting frequency when the in-and-out ratio is greater than or equal to the preset first ratio and less than the preset second ratio. If the garage lifting frequency is greater than or equal to the preset frequency, it is determined that the garage response efficiency does not meet the requirements, and the garage response mode is adjusted from a garage response mode according to the order of vehicle entry into the garage to a response mode according to a reciprocating response. The reciprocating response is that the parking space of the lift garage moves horizontally in a fixed direction from left to right and responds to vehicle requests along the way in turn, and then moves in the reverse direction after moving to the rightmost end.

9. The intelligent lift garage management system according to claim 8 is characterized in that: The control area is composed of a plurality of parking spaces whose control area width is greater than or equal to a preset width, whose control area height is greater than or equal to a preset height, and whose control area length is greater than a preset length.

10. The intelligent lift garage management system according to claim 9 is characterized in that: The control unit is connected to the data acquisition unit to obtain the number of forward vehicles in each control area, and sort the control areas from large to small according to the number of forward vehicles in the control area, so as to serve as the outbound priority sorting of the control areas in executing the reciprocating response. The forward vehicle refers to a vehicle whose front end is facing the direction of the parking entrance when the vehicle is parked in the parking space.

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