CN109667460B - Vehicle ground lock device, system and control method - Google Patents
Vehicle ground lock device, system and control method Download PDFInfo
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- CN109667460B CN109667460B CN201811561871.5A CN201811561871A CN109667460B CN 109667460 B CN109667460 B CN 109667460B CN 201811561871 A CN201811561871 A CN 201811561871A CN 109667460 B CN109667460 B CN 109667460B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
- E04H6/42—Devices or arrangements peculiar to garages, not covered elsewhere, e.g. securing devices, safety devices, monitoring and operating schemes; centering devices
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
- E01F13/044—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage the barrier being formed by obstructing members situated on, flush with, or below the traffic surface, e.g. with inflatable members on the surface
- E01F13/046—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage the barrier being formed by obstructing members situated on, flush with, or below the traffic surface, e.g. with inflatable members on the surface the obstructing members moving up in a translatory motion, e.g. telescopic barrier posts
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
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- Automation & Control Theory (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention provides a vehicle ground locking device, a system and a control method, wherein the ground locking device comprises a base, an X-shaped lifting frame, an upper bracket and a stepping motor assembly; the first support leg at the bottom of the X-shaped lifting frame is rotatably arranged on the base, and the second support leg at the bottom of the X-shaped lifting frame is slidably arranged on the base; a first support leg at the top of the X-shaped lifting frame is rotatably arranged on the upper bracket, and a second support leg at the top of the X-shaped lifting frame is slidably arranged on the upper bracket; the stepping motor assembly is fixedly arranged on the upper bracket and is in transmission connection with the X-shaped lifting frame so as to drive the X-shaped lifting frame to horizontally slide on the upper bracket, so that the upper bracket is driven to ascend or descend; the scheme provided by the invention has the advantages of simple structure, novel structure, environmental protection, energy conservation and convenience, and greatly promotes the application and development of the ground lock device.
Description
Technical Field
The invention belongs to the technical field of vehicle ground locks, and particularly relates to a vehicle ground lock device, a vehicle ground lock system and a vehicle ground lock control method.
Background
Chinese patent CN103031976B discloses an intelligent ground lock for parking a vehicle and a parking system, the intelligent ground lock comprises an outer cover, a bottom frame, a lifting frame, an upper bracket and an electric control part, the lifting frame is installed between the bottom frame and the upper bracket, the electric control part is installed at the upper bracket, and the outer cover covers the electric control part; the electric control part comprises a core control module, an ultrasonic sensor, a current feedback motor, a communication interface and a sound production module, wherein the ultrasonic sensor is arranged by taking the core control module as a center; the parking system comprises a central control system, an intelligent ground lock, a handheld charging terminal and a mobile user terminal, wherein the intelligent ground lock, the handheld charging terminal and the mobile user terminal are respectively in wireless communication with the remote central control system; the intelligent ground lock designed in the patent is fixed in lifting height when a parking space is locked, certain risk exists when the intelligent ground lock is in contact with a vehicle chassis when a vehicle is locked, and the power supply of the intelligent ground lock is not effectively managed.
The NB-IOT technology is an emerging technology widely applied to the field of global Internet of things (IOT), is also called as a low power consumption wide area network (LPWAN), and has the characteristics of wide coverage, multiple connections, low speed, low power consumption, low cost, excellent architecture and the like; the method supports the quick construction of an ultra-long standby and a cellular network, the service life of the NB-IOT terminal module is long, the network connection coverage of cellular data is very wide, the method is mainly directly deployed in the existing GSM network, LTE network and UMTS network at present, the deployment cost is greatly reduced, and the quick smooth upgrade is realized.
The NB-IOT technology mainly has the following four characteristics: the first characteristic is wide coverage, the deployed network has super-strong coverage, and under the same frequency band, compared with the existing network, the coverage gain is improved by about 20dB, which is equivalent to improving the coverage capability of 100 times; the second characteristic is that the multi-connection, NB-IOT technology supports massive connections, usually as many as about 10 ten thousand connections can be supported in a sector range, and compared with the existing network connection number, the magnitude order increase is realized; the third characteristic is low power consumption, the service life of the battery of the NB-IOT equipment can be as long as 10 years, and the long-time equipment endurance provides performance guarantee for numerous applications of the Internet of things; the fourth characteristic is low cost, because the terminal chip only needs to occupy the frequency band of about 180KHz, and requires lower speed, thereby greatly reducing the cost of the NB-IOT terminal module.
The geomagnetic sensor is essentially a micro electromechanical device for detecting the intensity of magnetic field, has the characteristics of small volume, strong anti-interference capability and the like, mainly induces the change of the intensity of the magnetic field through the Lorentz force effect, and transmits the change in the intensity of the magnetic field in an electric signal mode; because geomagnetic sensor's size is very little, can realize closely measuring to reach higher recognition rate, through integrated geomagnetic sensor on the main control board at intelligent ground lock, in case when there is the vehicle to get into the parking stall, geomagnetic sensor can detect the change of magnetic field intensity, and then awaken up intelligent ground lock device work.
The STM32 series is based on an ARM Cortex-M3 kernel enhanced series specially designed for embedded application requiring high performance, low cost and low power consumption, the clock frequency reaches 72MHz, and the STM32 series is a product with the highest performance in the similar products; the basic clock frequency is 36MHz, the performance greatly improved compared with 16-bit products is obtained by the price of the 16-bit products, and the basic clock frequency is the best choice for 32-bit product users; two series are built-in 32K to 128K flash memories, except the combination of the maximum capacity of SRAM and the peripheral interface; when the clock frequency is 72MHz, the code is executed from the flash memory, and the STM32 consumes 36mA, which is equivalent to 0.5 mA/MHz; an ARM Cortex-M3 kernel integrating an embedded Flash memory and an SRAM memory; the ARM Cortex-M332 bit RISC processor provides higher code efficiency than the 8/16 bit device; the STM32F103xx microcontroller is provided with an embedded ARM core, so that the microcontroller is compatible with all ARM tools and software; STM32 has 3 low power modes: sleep, stop, standby mode.
With the rapid development of the economy of China and the coming of the wave of the Internet of things technology revolution, the living standard of people is generally and remarkably improved, the leap-type development of the demand quantity of private cars of China is driven, the quantity of the private cars continuously rises year after year, and a series of problems are caused while convenience is brought to daily life and traveling of people; however, the existing parking spot locks on the market mainly adopt manual and remote control modes, the structure is relatively complex, the intelligent degree is not high, various disadvantages are increasingly presented, and few intelligent ground locks with long distance, multiple connections, low power consumption and low cost are available on the market, especially for the low power consumption design of the intelligent ground locks and the effective management of power supply, so that more perfect intelligent products are urgently needed to be presented in the field to promote the application of the intelligent ground locks.
Based on the technical problems in the vehicle ground locking device, no relevant solution is provided; there is therefore a pressing need to find effective solutions to the above problems.
Disclosure of Invention
The invention aims to provide a vehicle ground lock device, a vehicle ground lock system and a vehicle ground lock control method aiming at overcoming the defects in the prior art and solving the problem that the existing vehicle ground lock is complex in structure.
The invention provides a vehicle ground locking device, which comprises a base, an X-shaped lifting frame, an upper bracket and a stepping motor assembly, wherein the X-shaped lifting frame is arranged on the base; a first support leg at the bottom of the X-shaped lifting frame is rotatably arranged on the base, and a second support leg at the bottom of the X-shaped lifting frame is slidably arranged on the base; a first support leg at the top of the X-shaped lifting frame is rotatably arranged on the upper bracket, and a second support leg at the top of the X-shaped lifting frame is slidably arranged on the upper bracket; the stepping motor assembly is fixedly arranged on the upper support and is in transmission connection with the X-shaped lifting frame so as to drive the X-shaped lifting frame to horizontally slide on the upper support, and thus the upper support is driven to ascend or descend.
Furthermore, one end of the base is provided with a limiting groove, and a second support leg at the bottom of the X-shaped lifting frame penetrates through the limiting groove through a first cylindrical shaft and is slidably arranged in the limiting groove; one end of the upper bracket is provided with a sliding groove, and a second support leg at the top of the X-shaped lifting frame penetrates through the sliding groove through a second cylindrical shaft and is arranged in the sliding groove in a sliding manner; the limiting groove is long-strip-shaped and is arranged on the base along the horizontal direction, and the sliding groove is long-strip-shaped and is arranged on the upper support along the horizontal direction.
Further, the stepping motor assembly comprises a stepping motor, a screw rod and a sliding block; the stepping motor is fixedly arranged on the upper bracket; the screw rod is arranged on the upper bracket in parallel with the sliding groove, one end of the screw rod can be rotatably arranged at the end part of the upper bracket, and the other end of the screw rod is in transmission connection with the stepping motor; the sliding block is provided with a threaded hole and a through hole and is in transmission fit with the screw rod through the threaded hole; the second cylindrical shaft passes through the through hole of the slider to move the slider in parallel along the sliding groove.
Further, the stepping motor is fixedly arranged on the upper bracket through an L-shaped steel plate; the sliding block is a metal sliding block which is meshed with the screw rod through a threaded hole; the metal block drives the X-shaped lifting frame to lift through the rotation of the screw rod.
Further, the stepping motor is fixedly arranged on the upper bracket through an L-shaped steel plate; the device also comprises a top cover and a battery device; the top cover is sleeved on the upper bracket; the battery device is arranged on the right side of the upper bracket and is electrically connected with the stepping motor.
Further, the base is 570mm long, 140mm wide and 30mm high; the base is made of sheet metal materials; outer rubbing surfaces are respectively arranged on bottom plates at two ends of the base, and elliptical positioning holes are arranged on the outer rubbing surfaces; side plates are respectively arranged at two sides of the bottom plate; the limiting groove is arranged on the side plate.
Correspondingly, in combination with the above solution, as shown in fig. 1 to 6, the present invention further provides a vehicle ground lock system, which is applied to the vehicle ground lock device; the device also comprises a main control board, a stepping motor module, a geomagnetic sensor module and an NB-IOT module; the stepping motor module, the geomagnetic sensor module and the NB-IOT module are respectively in communication connection with the main control board; the main control board receives an unlocking instruction and a locking instruction of the ground lock device through the NB-IOT module; the main control board controls the work of the stepping motor assembly through the stepping motor module so as to control the unlocking and locking of the ground lock device; the geomagnetic sensor module is used for detecting the magnetic field change around the ground lock device and waking up the NB-IOT communication module for communication.
Further, the device also comprises a geomagnetic sensor module and a rechargeable power supply module; the rechargeable power supply module is electrically connected with the main control panel and used for providing power supply; the geomagnetic sensor module is in communication connection with the main control board and used for detecting whether the vehicle drives into a preset area or drives away from a parking space.
Further, the system also comprises a mobile intelligent terminal; the mobile intelligent terminal is in communication connection with the main control board through the NB-IOT base station and the NB-IOT module; the mobile intelligent terminal is used for inputting an unlocking instruction and a locking instruction into the ground locking device in advance.
Correspondingly, in combination with the above solutions, as shown in fig. 1 to 7, the present invention further provides a vehicle ground lock control method, which is applied to the vehicle ground lock system; further comprising the steps of:
s1: when a vehicle enters a preset parking space area and the geomagnetic sensor module detects that the magnetic field intensity of the vehicle exceeds a preset value, the main control board sends a connection request signal through the NB-IOT module, establishes communication connection with the NB-IOT base station and waits for an unlocking instruction;
s2: a vehicle user or a ground lock manager sends an unlocking instruction to the cloud platform through the mobile intelligent terminal;
s3: the main control board receives an unlocking instruction through the NB-IOT module and controls the work of the stepping motor assembly through the stepping motor module so as to control the unlocking of the ground lock device;
s4: when the local magnetic sensor module detects that the vehicle exits from the parking space, the main control board sends vehicle exiting information to the cloud platform through the NB-IOT module;
s5: the main control board controls the work of the stepping motor assembly through the stepping motor module, so that the locking of the ground locking device is controlled.
The scheme provided by the invention has the advantages of simple structure and novel structure, the ground locking device adopts the combination of industrial design and low-power consumption wireless wide area network technology, the lifting height can be automatically set according to the lengths of the sliding groove and the limiting groove, the residual charge of the rechargeable power supply can be effectively managed, and meanwhile, the low-power consumption intelligent ground locking device has the characteristics of environmental protection, energy conservation and convenience, so that the full-automatic intelligent management control of the ground locking device is realized, and the application and development of the intelligent ground locking device are greatly promoted.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention will be further explained with reference to the drawings, in which:
FIG. 1 is a schematic structural diagram of a vehicle ground lock apparatus according to the present invention;
FIG. 2 is a schematic view of a vehicle ground lock apparatus according to the present invention;
FIG. 3 is a sectional view showing the overall structure of a ground lock apparatus for a vehicle according to the present invention;
FIG. 4 is a schematic view of an internal structure of a ground lock device for a vehicle according to the present invention;
FIG. 5 is a schematic structural view of an X-shaped lifting frame of the present invention;
FIG. 6 is a schematic view of a stepper motor assembly of the present invention;
FIG. 7 is a schematic diagram of the hardware structure of the vehicle ground locking device of the present invention;
FIG. 8 is a general schematic view of a vehicle ground lock system of the present invention;
FIG. 9 is a schematic diagram of a method for controlling a ground lock of a vehicle according to the present invention.
In the figure: 1. a base; 11. a limiting groove; 12. externally rubbing the dough; 13. positioning holes; 2. an X-shaped lifting frame; 21. a bottom first leg; 22. a bottom second leg; 23. a top first leg; 24. a top second leg; 3. an upper bracket; 31. a sliding groove; 4. a stepper motor assembly; 41. a stepping motor; 42. a screw rod; 43. a slider; 44. an L-shaped steel plate; 5. a power supply mounting part; 6. and a top cover.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 6, the present invention provides a vehicle ground lock device, which comprises a base 1, an X-shaped crane 2, an upper bracket 3 and a stepping motor assembly 4; wherein, the first bottom support leg 21 of the X-shaped lifting frame 2 can be rotatably arranged on the base 1, and the second bottom support leg 22 of the X-shaped lifting frame 2 can be slidably arranged on the base 1; specifically, a first bottom support leg 21 of the X-shaped lifting frame 2 is a right side support leg at the bottom of the X-shaped lifting frame 2, and a second bottom support leg 22 of the X-shaped lifting frame 2 is a left side support leg at the bottom of the X-shaped lifting frame 2; a first support leg 23 at the top of the X-shaped lifting frame 2 is rotatably arranged on the upper bracket 3, and a second support leg 24 at the top of the X-shaped lifting frame 2 is slidably arranged on the upper bracket 3; specifically, the first top support leg 23 of the X-shaped lifting frame 2 is the right side support leg of the top of the X-shaped lifting frame 2, and the second top support leg 24 of the X-shaped lifting frame 2 is the left side support leg of the top of the X-shaped lifting frame 2; the stepping motor assembly 4 is fixedly arranged on the upper bracket 3 and is in transmission connection with the X-shaped lifting frame 2 so as to drive the X-shaped lifting frame 2 to horizontally slide on the upper bracket 3, so that the upper bracket 3 is driven to ascend or descend; by adopting the scheme, the structure of the vehicle ground locking device can be simplified, and the control is convenient.
Preferably, with the above scheme, as shown in fig. 1 to 6, in this embodiment, the left end of the base 1 is provided with a limit groove 11, the second support leg 22 at the bottom of the X-shaped lifting frame 2 passes through the limit groove through the first cylindrical shaft and is slidably disposed in the limit groove 11, and the first support leg 21 at the bottom of the X-shaped lifting frame 2 is hinged to the right end of the base 1; the left end of the upper bracket 3 is provided with a sliding groove 31, the second support leg 24 at the top of the X-shaped lifting frame 2 passes through the sliding groove 31 through a second cylindrical shaft and is arranged in the sliding groove 31 in a sliding way, and the first support leg 23 at the top of the X-shaped lifting frame 2 is hinged at the right end of the upper bracket 3; specifically, the spacing groove 11 is a long strip and is arranged on the base 1 along the horizontal direction, and the sliding groove 31 is a long strip and is arranged on the upper bracket 3 along the horizontal direction, so that the top and the bottom support legs of the X-shaped lifting frame 2 can slide along the spacing groove and the sliding groove, and the upper bracket is driven to ascend or descend.
Preferably, in combination with the above solution, as shown in fig. 1 to 6, in the present embodiment, the stepping motor assembly 4 includes a stepping motor 41, a screw rod 42 and a slider 43; wherein, the stepping motor 41 is fixedly arranged on the upper bracket 3; the screw rod 42 is arranged on the upper bracket 3 in parallel with the sliding groove 31; one end of the screw rod 42 is rotatably arranged at the end part of the upper bracket 3, and the other end thereof is in transmission connection with the stepping motor 4; the sliding block 42 is provided with a threaded hole and a through hole, and the sliding block 42 is in transmission fit with the screw rod 42 through the threaded hole; and the second cylindrical shaft passes through the through hole on the sliding block to limit the sliding block 42 on the sliding groove 31 at the same time, so that the sliding block 43 moves in parallel along the sliding groove 31; specifically, when the ground lock device needs to be unlocked, the stepping motor is started, the screw rod is driven to rotate in the forward direction through the stepping motor, so that the screw rod drives the sliding block to slide to the left side of the sliding groove, and the sliding block drives the X-shaped lifting frame to descend while sliding to the left side of the sliding groove so as to unlock; when the ground locking device needs to be locked, the screw rod is driven to rotate reversely through the stepping motor, so that the screw rod drives the sliding block to slide to the right side of the sliding groove, and the sliding block drives the X-shaped lifting frame to ascend and lock while sliding to the right side of the sliding groove.
Preferably, in combination with the above solutions, as shown in fig. 1 to 6, in the present embodiment, the stepping motor 41 is fixedly disposed on the upper bracket 3 through an L-shaped steel plate 44; the sliding block 43 is a metal sliding block which is meshed with the screw rod through a threaded hole so as to realize transmission connection; the metal block drives the X-shaped lifting frame 2 to lift through the rotation of the screw rod; specifically, the center of the X-shaped lifting frame penetrates through a cylindrical shaft, two ends of the X-shaped lifting frame are provided with T-shaped nuts for fixing, and meanwhile, two sides of the bottom end of the X-shaped lifting frame are cut off to enable the corners to be matched with the base in a smooth mode; the stabilizer blade on X type crane right side and the round hole of base pass through cylindrical axle, and both ends are furnished with T type nut and fix.
Preferably, in combination with the above scheme, as shown in fig. 1 to 6, in this embodiment, the battery pack further includes a top cover 6 and a battery device; the top cover is sleeved on the upper bracket and used for protecting the stepping motor assembly 4 and the battery device on the upper bracket 3, and meanwhile, the top of the top cover 6 can be subjected to smoothing treatment and is coated with a light-reflecting warning mark to play a warning role; further, the battery device is arranged on the right side of the upper bracket 3, is electrically connected with the stepping motor 41 and is used for providing power supply support for the stepping motor assembly; specifically, a round hole is formed in a metal plate at one end of the left side of the upper support and used for fixing a screw rod of the stepping motor, a power supply installation part is arranged at one end of the right side of the upper support and used for placing a rechargeable power supply module, a hollow groove is formed in the middle of the upper support, and round holes and sliding grooves which are equal in size and correspond to the round hole and the sliding grooves are formed in two side plates of the upper support and used for being matched with the X; the support leg on the left side of the top end of the X-shaped lifting frame is penetrated through the sliding groove of the upper support frame through a cylindrical shaft, a metal sliding block is sleeved on the cylindrical shaft, and T-shaped pulleys capable of rolling are sleeved at two ends of the cylindrical shaft to realize that a supporting point on the left side rolls on the sliding groove of the upper support frame; the fulcrum on the right side of the top end of the X-shaped lifting frame and the round hole cylindrical shaft of the upper support penetrate through the X-shaped lifting frame, and the two ends of the X-shaped lifting frame are provided with T-shaped nuts for fixing.
Preferably, in combination with the above solutions, as shown in fig. 1 to 6, in the present embodiment, the base 1 has a length of 570mm, a width of 140mm, and a height of 30 mm; the base 1 is made of sheet metal materials; outer rubbing surfaces 12 are symmetrically arranged on the bottom plates at the two ends of the base respectively, oval positioning holes 13 are symmetrically arranged on the outer rubbing surfaces 12, the hole lengths of the positioning holes 13 are 95mm, and the hole diameters are 5 mm; specifically, the whole structure of the base 1 is formed by folding a metal plate, and the whole ground lock device is fixed in the center of a parking space through four positioning holes 13 around the base, so that the installation of a ground lock can be realized; furthermore, two sides of the bottom plate are respectively provided with a side plate; the limiting groove is arranged on the side plate.
Correspondingly, in combination with the above solution, as shown in fig. 1 to 9, the present invention further provides a vehicle ground lock system, which is applied to the vehicle ground lock device; the device also comprises a main control board, a stepping motor module, a geomagnetic sensor module and an NB-IOT module; the NB-IOT module of the stepping motor module is respectively in communication connection with the main control board; the main control board is in communication connection with the NB-IOT module through USART2, and receives an unlocking instruction and a locking instruction of the ground lock device; the main control board is in communication connection with the stepping motor module through USARTl and controls the work of the stepping motor assembly, so that the unlocking and the locking of the ground lock device are controlled; specifically, the main control board comprises an STM32 main control board, an NB-IOT communication module and a geomagnetic sensor module, wherein the NB-IOT communication module and the geomagnetic sensor module are integrated on the main control board; the STM32 main control board adopts the low-power consumption chip that the model is STM32F103RCT6, and NB-IOT communication module communicates with NB-IOT basic station (eNodeB), and the earth magnetism sensor module is used for detecting the magnetic field change around the low-power consumption intelligence ground lock device and awakens NB-IOT communication module up to communicate.
Preferably, with reference to the above solutions, as shown in fig. 1 to 9, in this embodiment, the geomagnetic sensor module and the rechargeable power supply module are further included; the rechargeable power supply module is electrically connected with the main control panel and used for providing power supply; the geomagnetic sensor module is in communication connection with the main control board and is used for detecting whether the vehicle is in a preset area of a parking space or is away from the parking space; specifically, the rechargeable power supply module is preferably a 12V rechargeable lithium battery or a lead storage battery, and is mounted on a power supply mounting part on the right side of the upper bracket for supplying power to a vehicle ground lock system; furthermore, the rechargeable power supply module is electrically connected to the STM32 main control board in the communication module and used for supplying power to the STM32 main control board, the rechargeable power supply module can be charged through a reserved interface, or the rechargeable battery can be taken out and replaced by another rechargeable battery, and then the rechargeable battery needing to be charged is charged through an external charging device.
Preferably, with reference to the above scheme, as shown in fig. 1 to 9, in this embodiment, the mobile terminal further includes a mobile intelligent terminal; the mobile intelligent terminal is in communication connection with the main control board through the NB-IOT base station and the NB-IOT module; the mobile intelligent terminal is used for inputting an unlocking instruction and a locking instruction into the ground locking device in advance; specifically, an NB-IOT base station (eNodeB) preferentially selects and deploys an existing LTE cellular base station with an NB-IOT module communication function or an independently deployed NB-IOT base station, and on one hand, the NB-IOT base station can be communicated with an NB-IOT communication module on a low-power intelligent ground lock device, and on the other hand, the NB-IOT base station can also be communicated with an intelligent mobile terminal and a cloud platform; the cloud platform is preferably an existing platform capable of processing and managing NB-IOT communication data, and is essentially a server, such as Aliskiu and the like; meanwhile, the system can communicate with an NB-IOT base station and a mobile intelligent terminal through a CIOT service gateway node, namely an NB-IOT core network; the mobile intelligent terminal is a smart phone, a tablet computer or a smart bracelet and the like.
Preferably, in combination with the above scheme, in this embodiment, the stepping motor module may control the stepping motor to realize forward rotation and reverse rotation; when the stepping motor rotates forwards, the lead screw of the stepping motor rotates to drive the metal sliding block to move forwards, the metal sliding block can drive the T-shaped pulleys at two ends of the cylindrical shaft penetrating through the metal sliding block to roll forwards in the limiting hole of the upper bracket, and meanwhile, the T-shaped pulleys at two ends of the cylindrical shaft on the limiting hole of the base can also roll forwards, so that the X-shaped lifting frame is lowered, namely the whole low-power-consumption intelligent lock is lowered; when the stepping motor rotates reversely, the lead screw of the stepping motor rotates to drive the metal sliding block to retreat, the metal sliding block can drive the T-shaped pulleys at two ends of the cylindrical shaft penetrating through the metal sliding block to roll backwards in the sliding groove of the upper bracket while retreating, and meanwhile, the T-shaped pulleys at two ends of the cylindrical shaft on the limiting groove of the base can also roll backwards, so that the lifting of the X-shaped lifting frame is realized, namely the lifting of the whole low-power intelligent lock is realized; it is further explained that the number of turns of the stepping motor lead screw rotation and the lifting height of the ground locking device have a linear relationship, and the length of the limiting hole determines the maximum stroke of the lifting height of the ground locking device; in this embodiment, the lifting height is automatically set only by changing the number of turns of the screw rod of the stepping motor according to actual requirements, and the specific changing process is not repeated.
The vehicle ground lock system provided by the invention is a low-power-consumption intelligent ground lock system, and a system hardware part mainly comprises a rechargeable power supply module, a geomagnetic sensor, an STM32 main control board, a stepping motor module, an NB-IOT communication module and the like; the charging power module is powered by a 12V charging lithium battery or a lead storage battery, preferably a charging lithium battery pack, and supplies power to the STM32 main control board through a power supply voltage stabilizing circuit, and the STM32 main control board can be connected with a peripheral electric quantity metering chip through a built-in SPI (serial peripheral interface) for detecting the residual charge quantity of the charging power module; the specific detection mode is not limited, only the residual charge quantity of the rechargeable power supply module needs to be detected, and meanwhile, the detection result is transmitted to the cloud platform through the NB-IOT communication module in the form of a heartbeat packet, so that the cloud platform can analyze the data of the heartbeat packet, and the heartbeat packet comprises the data of a device number, an IP address, a port number, the residual charge quantity and the like; the cloud platform can record and analyze data uploaded to the heartbeat package and compare the size of the residual charge quantity of the rechargeable power supply with a preset rated voltage, once the residual charge quantity is lower than the rated voltage, the cloud platform can send out an early warning signal to inform a user or a manager to charge or replace a battery, meanwhile, a sleep command of the intelligent ground lock is transmitted in a downlink mode, and the ground lock is in an out-of-operation state when entering a self-protection stage.
Correspondingly, in combination with the above solutions, as shown in fig. 1 to 9, the present invention further provides a vehicle ground lock control method, which is applied to the vehicle ground lock system; the vehicle ground lock system can be specifically installed in an upper bracket electrical appliance box of the vehicle ground lock system; further comprising the steps of:
s1: when a vehicle enters a preset parking space area and the geomagnetic sensor module detects that the magnetic field intensity of the vehicle exceeds a preset value, the main control board sends a connection request signal through the NB-IOT module, establishes communication connection with the NB-IOT base station, and waits for an unlocking instruction and a locking instruction; the method specifically comprises the following steps: the geomagnetic sensor module is integrated on the STM32 main control board of the system, preferably two geomagnetic sensors in the example are symmetrically distributed on the STM32 main control board, holes can be formed in the front and the back of a built-in electrical box of the ground lock device for further improving the detection precision on the basis of not influencing the detection of the geomagnetic sensors, and plastic is filled in the holes to reduce the influence of a metal shell on signals; when a vehicle slowly drives into the vicinity of a parking space, the geomagnetic sensor module senses the intensity of magnetic field near the parking space according to the Lorentz force effect, converts the intensity of the magnetic field into an electric signal and transmits the electric signal to the STM32 main control board, once the detected intensity of the magnetic field is larger than the preset intensity of the magnetic field, the STM32 main control board wakes up the NB-IOT communication module, and the NB-IOT communication module actively sends a request connection signal to establish connection with an NB-IOT base station so as to control the intelligent ground lock device, otherwise, the whole low-power intelligent ground lock device enters a dormant state;
s2: a vehicle user or a ground lock manager sends an unlocking instruction and a locking instruction to the cloud platform through the mobile intelligent terminal; the method specifically comprises the following steps: after the low-power-consumption intelligent ground locking device is powered on, whether the system is normal or not is judged, if not, the system gives an alarm, and the low-power-consumption intelligent ground locking device does not work and enters a standby state; if the system is normal, the system is started, the low-power-consumption intelligent ground locking device ascends and sends a system self-checking normal signal to a remote cloud platform through the NB-IOT communication module, the low-power-consumption intelligent ground locking device enters a dormant state and waits for a command to wake up, and therefore energy consumption is saved; if a vehicle slowly drives into the vicinity of the parking space and the geomagnetic sensor module detects that the magnetic field intensity in the vicinity of the parking space is larger than the preset magnetic field intensity, the STM32 main control board wakes up the NB-IOT communication module, the NB-IOT communication module actively sends a request connection signal to establish connection with the NB-IOT base station to wait for an unlocking instruction, at the moment, a user or a manager can send the unlocking instruction through a mobile intelligent terminal, and once the low-power intelligent ground locking device receives the unlocking instruction, the low-power intelligent ground locking device descends so that the vehicle drives into the parking space; meanwhile, the low-power-consumption intelligent locking device enters a dormant state and waits for a command to wake up, so that the energy consumption of the system is saved, otherwise, the low-power-consumption intelligent locking device continues to enter the dormant state and waits for the command to wake up; if a vehicle drives away from the parking space, the geomagnetic sensor module detects that the magnitude of the magnetic field intensity near the parking space is smaller than the magnitude of the magnetic field intensity set in advance, and a user or a manager sends a locking instruction through the mobile intelligent terminal, the low-power-consumption intelligent ground locking device can send vehicle driving away information to the remote cloud platform, meanwhile, the low-power-consumption intelligent ground locking device rises, enters a dormant state, waits for the next command to wake up, and otherwise, the low-power-consumption intelligent ground locking device continues to keep a descending state;
s3: the main control board receives the unlocking instruction through the NB-IOT module and controls the forward work of the stepping motor assembly through the stepping motor module so as to control the unlocking of the ground lock device; the method specifically comprises the following steps: the STM32 main control board is electrically connected with the stepping motor module through a relay, on one hand, the STM32 main control board is communicated with the stepping motor module through a serial port USART1, and the lifting of the ground lock device is controlled; on the other hand, the USB interface is communicated with the NB-IOT module through a serial port USART 2;
s4: when the local magnetic sensor module detects that the vehicle exits from the parking space, the main control board sends vehicle exiting information to the cloud platform through the NB-IOT module;
s5: the main control board controls the stepping motor assembly to work reversely through the stepping motor module, so that the locking of the ground locking device is controlled.
The scheme provided by the invention has the advantages of simple structure and novel structure, the ground locking device adopts the combination of industrial design and low-power consumption wireless wide area network technology, the lifting height can be automatically set according to the lengths of the sliding groove and the limiting groove, the residual charge of the rechargeable power supply can be effectively managed, and meanwhile, the low-power consumption intelligent ground locking device has the characteristics of environmental protection, energy conservation and convenience, so that the full-automatic intelligent management control of the ground locking device is realized, and the application and development of the intelligent ground locking device are greatly promoted.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (3)
1. The vehicle ground lock system is characterized by being applied to a vehicle ground lock device, wherein the vehicle ground lock device comprises a base, an X-shaped lifting frame, an upper bracket and a stepping motor assembly; a first support leg at the bottom of the X-shaped lifting frame is rotatably arranged on the base, and a second support leg at the bottom of the X-shaped lifting frame is slidably arranged on the base; a first support leg at the top of the X-shaped lifting frame is rotatably arranged on the upper bracket, and a second support leg at the top of the X-shaped lifting frame is slidably arranged on the upper bracket; the stepping motor assembly is fixedly arranged on the upper bracket and is in transmission connection with the X-shaped lifting frame so as to drive the X-shaped lifting frame to horizontally slide on the upper bracket, so that the upper bracket is driven to ascend or descend;
the base is 570mm long, 140mm wide and 30mm high; the base is made of sheet metal materials; outer rubbing surfaces are respectively arranged on bottom plates at two ends of the base, oval positioning holes are arranged on the outer rubbing surfaces, the hole length of each positioning hole is 95mm, and the hole diameter is 5 mm; side plates are respectively arranged at two sides of the bottom plate, and limiting grooves are arranged on the side plates;
the vehicle ground lock system comprises a main control board, a stepping motor module, a geomagnetic sensor module and an NB-IOT module; the stepping motor module, the geomagnetic sensor module and the NB-IOT module are respectively in communication connection with the main control board;
the main control board receives an unlocking instruction and a locking instruction of a ground lock device through the NB-IOT module; the main control board controls the work of the stepping motor assembly through the stepping motor module so as to control the unlocking and locking of the ground lock device; the geomagnetic sensor module is used for detecting the magnetic field change around the ground lock device and waking up the NB-IOT communication module for communication; wherein,
the main control board is used for sending a connection request signal through the NB-IOT module when the geomagnetic sensor module detects that the magnetic field intensity of the vehicle exceeds a preset value, establishing communication connection with the NB-IOT base station, waiting for the mobile intelligent terminal to send an unlocking instruction to the cloud platform, receiving the unlocking instruction through the NB-IOT module, and controlling the stepping motor assembly to work through the stepping motor module so as to control unlocking of the ground lock device; the main control board is further used for sending vehicle driving-away information to the cloud platform through the NB-IOT module when the geomagnetic sensor module detects that the vehicle drives out of a parking space, and controlling the stepping motor assembly to work through the stepping motor module so as to control the locking of the ground locking device; the main control board adopts a low-power consumption chip with the model of STM32F103RCT 6;
the geomagnetic sensor module is integrated on an STM32 main control board of the system, the geomagnetic sensor module comprises two geomagnetic sensors, the two geomagnetic sensors are symmetrically distributed on the STM32 main control board, holes are formed in the front and the back of a built-in electrical appliance box of the ground lock device, and plastic is filled in the holes;
when a vehicle slowly drives into the vicinity of a parking space, the geomagnetic sensor module induces the magnitude of the magnetic field intensity near the parking space according to the Lorentz force effect, converts the magnitude of the magnetic field intensity into an electric signal and transmits the electric signal to the STM32 main control board;
if the detected magnetic field intensity is larger than the preset magnetic field intensity, the STM32 main control board wakes up the NB-IOT communication module, and the NB-IOT communication module actively sends a connection request signal to establish connection with an NB-IOT base station so as to control the intelligent locking device;
otherwise, the whole intelligent locking device enters a dormant state;
the vehicle ground lock system is further used for executing the following steps:
s1: when a vehicle enters a preset parking space area and the geomagnetic sensor module detects that the magnetic field intensity of the vehicle exceeds a preset value, the main control board sends a connection request signal through the NB-IOT module, establishes communication connection with the NB-IOT base station and waits for an unlocking instruction;
s2: a vehicle user or a ground lock manager sends an unlocking instruction to the cloud platform through the mobile intelligent terminal;
s3: the main control board receives the unlocking instruction through an NB-IOT module and controls the work of the stepping motor assembly through the stepping motor module so as to control the unlocking of the ground lock device;
s4: when the geomagnetic sensor module detects that the vehicle exits from the parking space, the main control board sends vehicle leaving information to the cloud platform through the NB-IOT module;
s5: the main control board controls the work of the stepping motor assembly through the stepping motor module so as to control the locking of the ground locking device;
the unlocking of the ground lock device comprises: starting a stepping motor, driving a screw rod to rotate in the forward direction through the stepping motor, enabling the screw rod to drive a sliding block to slide to the left side of a sliding groove, and driving the X-shaped lifting frame to descend for unlocking while the sliding block slides to the left side of the sliding groove;
the controlling of locking of the ground lock device includes: when the ground locking device needs to be locked, the screw rod is driven to rotate reversely through the stepping motor, so that the screw rod drives the sliding block to slide to the right side of the sliding groove, and the sliding block drives the X-shaped lifting frame to ascend and lock while sliding to the right side of the sliding groove.
2. The vehicle ground lock system of claim 1, further comprising a rechargeable power module; the rechargeable power supply module is electrically connected with the main control board and used for providing power supply; the geomagnetic sensor module is further used for detecting whether the vehicle enters a preset area or leaves a parking space.
3. The vehicle ground lock system of claim 1, further comprising a mobile intelligent terminal; the mobile intelligent terminal is in communication connection with the main control board through an NB-IOT base station and the NB-IOT module; the mobile intelligent terminal is used for inputting an unlocking instruction and a locking instruction into the ground lock device in advance.
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