CN114960502A - Intelligent parking spot lock and control circuit thereof - Google Patents

Abstract

The invention discloses an intelligent parking space lock and a control circuit thereof, comprising: a base plate assembly, a chassis assembly and a baffle assembly arranged on the base plate assembly, and a two-dimensional code pasted on the chassis assembly; Several rotating link assemblies and wire conduits on the bottom plate, and a base arranged at the end of the bottom plate; a laser sensor and an ultrasonic sensor are installed in the base; the baffle assembly includes a baffle, a The rotating shaft of the baffle, a number of nylon rollers arranged on the top of the baffle, and the reinforcement assembly installed on the baffle. The smart parking lock of the invention has functions such as alarm, voice prompt, water level detection, etc., which can prevent the cars to be charged from escaping. Lock, convenient and practical, instead of manual charging.

Description

An intelligent parking lock and its control circuit

technical field

The invention relates to the technical field of intelligent parking space locks, in particular to an intelligent parking space lock and a control circuit thereof.

Background technique

With the increasing economic level, the number of private cars has been increasing year by year, and the phenomenon of random parking of cars has become more and more serious, especially the phenomenon of vehicles occupying other people's parking spaces at will, which has caused many people to occupy parking spaces at will. The resulting disputes, however, the emergence of parking locks better control the phenomenon of random parking.

At present, the parking space control is realized by the parking space lock, while the existing parking space lock is basically a manual structure. It is very inconvenient and the labor cost is high. If it is an open-air parking space and it is raining, it is even more unfavorable for the user to operate. In addition, the manual structure has a single function, and the parking fee is charged manually by someone, and there are often arbitrary charges or evasion. phenomenon, the owner of the parking is not standardized, this technology is developed accordingly.

SUMMARY OF THE INVENTION

Aiming at the problems existing in the prior art, the present invention provides an intelligent parking space lock and a control circuit thereof.

In order to achieve the above object, the technical scheme of the present invention is as follows:

An intelligent parking space lock, comprising: a base plate assembly, a chassis assembly and a baffle assembly arranged on the base plate assembly, and a two-dimensional code pasted on the chassis assembly;

The base plate assembly comprises a base plate, several rotating link assemblies and wire conduits arranged on the base plate, and a base arranged at the end of the base plate; a laser sensor and an ultrasonic sensor are installed in the base;

The baffle assembly includes a baffle plate, a baffle plate rotating shaft arranged at the bottom end of the baffle plate, a plurality of nylon rollers arranged at the top end of the baffle plate, and a reinforcement assembly installed on the baffle plate;

One end of each said rotating link assembly is hinged with the bottom plate, and the other end is hinged with the baffle plate;

The chassis component includes a chassis, an indicator light disposed on the chassis, and a drive mechanism, a PCB board, a power supply and a control box, an alarm device, and a water level detection mechanism disposed in the chassis; the output end of the drive mechanism rotates with the baffle plate. shaft connection;

The driving mechanism includes a motor, a screw rod arranged at the output end of the motor, a screw rod guide block arranged on the screw rod, a sheet metal guide block of a rotating shaft installed at both ends of the screw guide block, a rotating shaft passing through the sheet metal guide block of the rotating shaft, and the installation The front end bearing sleeve and the rear end bearing sleeve at both ends of the rotating shaft.

Preferably, each of the rotating link assemblies includes a lower rotating link hinge seat, a lower rotating link, a first pin, an upper rotating link, a second pin, an upper rotating link hinge seat, and a third pin; One end of the lower rotating connecting rod is installed on the hinge seat of the lower rotating connecting rod through the first pin, and the other end is connected with one end of the upper rotating connecting rod through the second pin; the other end of the upper rotating connecting rod is installed on the upper rotating connecting rod through the third pin. the hinge base of the lower rotating link is fixed on the bottom plate; the hinge base of the upper rotating link is fixed on the baffle;

The wire-passing tube is fixed on the bottom plate through a plurality of sealing plates, one end of the wire-passing tube is placed in the base, and the other end is close to the chassis; the top of the sealing plate is also provided with an inclined fixed sealing plate, which separates the wire-passing tube from the sealing plate. The plate is covered; the bottom plate is also provided with a plurality of baffle rotating shaft stops arranged side by side to limit the position of the baffle rotating shaft.

Preferably, the reinforcing assembly includes a plurality of first reinforcing ribs; the first reinforcing ribs are arranged side by side on the baffle, and are evenly divided into three sections, which are section one, section two, and section three; each section There is a corresponding nylon roller on the top, and the nylon roller is placed between two adjacent first reinforcing ribs; the end of the first reinforcing ribs is also provided with an arc-shaped bayonet, which is used for the rotation of the card baffle. axis.

Preferably, a number of wildebeests are also arranged around the bottom of the case to fix the case on the bottom plate, and a handle is also provided on the side wall of the case; It is divided into a first case and a second case; the top of the first case is provided with a sealing ring and a long cover in sequence; the sealing ring is arranged between the first case and the long cover; the top of the second case is provided with a short cover, so the The short cover is also provided with an acrylic cover; the indicator light is placed beside the acrylic cover and installed on the short cover; the two-dimensional code is pasted on the acrylic cover; the drive mechanism and the PCB are The power supply and control box, the alarm device and the water level detection mechanism are all arranged in the second case; the alarm device is arranged on the side wall of the second case; the water level detection mechanism is arranged at the end of the second case The lower part of the water level detection mechanism is provided with a water level detection port, and the water level detection port is formed by a water blocking plate and the two side walls of the case.

Preferably, the front end bearing is sleeved on the rotating shaft, and the sleeve is sequentially provided with a sealing ring, a rotating shaft sleeve, and an oil seal TC sleeved on the rotating shaft; the front end of the rotating shaft is also sleeved with a rotating shaft. The left sheet metal cover of the shaft is used to fix the front end bearing sleeve. The front end of the rotating shaft is also provided with a U-shaped coupling sleeve, which is placed next to the left sheet metal cover of the rotating shaft. The coupling sleeve is used to connect with the rotating shaft of the baffle; the rear end bearing sleeve is arranged at the rear end of the rotating shaft.

The invention also provides a control circuit for an intelligent parking space lock, which is arranged on the PCB board, and is characterized in that it includes: a main control circuit, an alarm device control circuit, a motor position detection circuit, a motor drive circuit, a wireless communication circuit, a voice Prompt circuit, water level detection circuit, laser interface circuit, ground induction coil detection circuit, power supply control circuit, indicator light control circuit, ultrasonic detection circuit;

The corresponding ends of the main control circuit are respectively connected with the alarm device control circuit, the motor position detection circuit, the motor drive circuit, the wireless communication circuit, the voice prompt circuit, the water level detection circuit, the laser interface circuit, the ground induction coil detection circuit, and the whole machine power supply control circuit. , The corresponding terminals of the indicator light control circuit and the ultrasonic detection circuit are electrically connected;

The motor drive circuit includes a motor forward rotation circuit, a motor reverse rotation circuit, and a motor stall detection circuit; the corresponding ends of the motor are respectively electrically connected with a corresponding terminal of the motor forward rotation circuit and the motor reverse rotation circuit; the motor stalls The corresponding ends of the detection circuit are also electrically connected to the other corresponding ends of the motor forward rotation circuit, the motor reverse rotation circuit and the main control circuit respectively;

The power supply control circuit of the whole machine includes a battery anti-reverse connection circuit, a power supply circuit, and a power detection circuit; the corresponding ends of the battery anti-reverse connection circuit are respectively electrically connected with the corresponding ends of the power supply circuit and the power detection circuit; the power supply The corresponding ends of the circuit and the power detection circuit are also electrically connected to the corresponding ends of the main control circuit respectively.

Preferably, the main control circuit includes an MCU control circuit and an MCU power supply circuit that is electrically connected to a corresponding end of the MCU control circuit; the corresponding end of the power supply circuit is electrically connected to a corresponding end of the MCU power supply circuit; the MCU control circuit includes A STC8H3K64S4 chip and its peripheral circuits; the MCU power supply circuit includes a rt9193-33 voltage regulator chip, which is used to stabilize the 4.2V voltage input by the power supply circuit to 3.3V to supply power to the MCU control circuit;

The power supply circuit includes a whole machine power supply circuit, the whole machine power supply circuit is set as MP1584EN power supply step-down chip and its peripheral circuits, MP1584EN power supply step-down chip is used to convert the input 12V voltage into 4.2V to supply power to the MCU power supply circuit;

The wireless communication circuit includes a wireless WIFI circuit and a 4G communication module circuit; the wireless WIFI circuit includes an ESP8266-07 chip and its peripheral circuits, and the corresponding end of the ESP8266-07 chip is electrically connected to the corresponding end of the STC8H3K64S4 chip; the 4G The communication module circuit includes a SIM7020 chip and its peripheral circuit, and the corresponding end of the SIM7020 chip is electrically connected with the corresponding end of the STC8H3K64S4 chip.

Preferably, the motor position detection circuit includes a first motor position detection circuit and a second motor position detection circuit;

The first motor position detection circuit includes a resistor R1, a capacitor C1, a resistor R2, and a capacitor C2; one end of the resistor R1 is connected to the 3.3V power supply terminal, and the other end is electrically connected to the STC8H3K64S4 chip and one end of the capacitor C1; the capacitor The other end of C1 is grounded; one end of the resistor R2 is connected to the 3.3V power supply terminal, and the other end is electrically connected to the STC8H3K64S4 chip and one end of the capacitor C2, and the other end of the capacitor C2 is grounded;

The second motor position detection circuit includes a connector J9, a resistor R43, a resistor R45, a resistor R46, a resistor R57, a capacitor C22, a capacitor C23, a capacitor C24, and a transistor Q9; the first end of the connector J9 is respectively connected to the resistor. One end of R46, one end of capacitor C24, and the corresponding end of the STC8H3K64S4 chip are electrically connected, the other end of the resistor R46 is connected to the 3.3V power supply end, and the other end of the capacitor C24 is grounded; the second end of the connector J9 is respectively connected to one end of the resistor R45 , one end of the capacitor C23 is electrically connected to the corresponding end of the STC8H3K64S4 chip, the other end of the resistor R45 is connected to the 3.3V power supply, and the other end of the capacitor C23 is grounded; the third end of the connector J9 is grounded; the connector The fourth end of J9 is electrically connected to one end of the capacitor C22 and the transistor Q9 respectively, and the other end of the capacitor C22 is grounded; the second end of the transistor Q9 is electrically connected to one end of the resistor R43 and the resistor R57 respectively, and the other end of the resistor R43 is connected to the ground. The corresponding terminals of the STC8H3K64S4 chip are electrically connected; the third terminal of the transistor Q9 is electrically connected to the other terminal of the resistor R57 and the 3.3V power supply terminal, respectively.

Preferably, the motor forward rotation circuit includes a relay JK1, a resistor R3, a resistor R58, a transistor Q1, and a diode D1; the first end of the relay JK1 is electrically connected to the corresponding end of the motor; the fourth end of the relay JK1 is respectively connected to the diode D1. One end of the transistor Q1 is electrically connected, the other end of the diode D1 is electrically connected to the fifth end of the relay JK1; One end of R58 is electrically connected; the other end of the resistor R58 is electrically connected to the third end of the transistor Q1 and grounded;

The motor reversing circuit includes a relay JK2, a resistor R19, a resistor R59, a transistor Q7, and a diode D7; the first end of the relay JK2 is electrically connected to the corresponding end of the motor; the fourth end of the relay JK2 is respectively connected with the diode D7, the transistor One end of Q7 is electrically connected, the other end of the diode D7 is electrically connected to the fifth end of the relay JK2; one end of the resistor R19 is electrically connected to the corresponding end of the STC8H3K64S4 chip, and the other end is electrically connected to the second end of the transistor Q7 and one end of the resistor R59 respectively. The other end of the resistor R59 is electrically connected to the third end of the transistor Q7 and grounded.

Preferably, the motor stall detection circuit includes a resistor R4, a resistor R5 and a capacitor C4; one end of the resistor R4 is electrically connected to the second end of the relay JK1 and the second end of the relay JK2 respectively, and the other end is respectively connected to the resistor R5, the capacitor One end of C4 is electrically connected; the other end of the resistor R5 is electrically connected to the corresponding end of the STC8H3K64S4 chip, and the other end of the capacitor C4 is grounded;

The ground sensing coil detection circuit includes: connector j1, resistor RA1, resistor RA2, resistor RA3, resistor RA4, resistor RA5, resistor RA6, resistor RA7, resistor RA8, resistor RA9, capacitor CA1, capacitor CA3, transistor PA1, Transistor PA2, triode PA3, triode PA4;

A corresponding end of the connector j1 is electrically connected to the third end of the transistor PA3, the resistor RA2, the resistor RA6, and one end of the capacitor CA3 respectively; connected; the other end of the resistor RA6 is electrically connected to one end of the resistor RA4, one end of the resistor RA8, and the second end of the triode PA2 through the capacitor CA1, and the other end of the resistor RA4 is electrically connected to one end of the resistor RA3 and the resistor RA5 respectively; the The first end of the triode PA2 is electrically connected to the other end of the resistor RA3 and the first end of the triode PA3 respectively; the second end of the triode PA3 is respectively electrically connected to the other end of the resistor RA5 and one end of the resistor RA7; the other end of the resistor RA7 is respectively connected to The other end of the resistor RA8 and the first end of the triode PA4 are electrically connected; the second end of the triode PA4 is electrically connected to the corresponding end of the STC8H3K64S4 chip through the resistor RA9, and the third end of the triode PA4 is grounded;

The voice prompt circuit includes a WT588F02B voice chip and its peripheral circuits, and the corresponding terminal of the WT588F02B voice chip is electrically connected to the corresponding terminal of the STC8H3K64S4 chip; the intelligent parking space lock control circuit also includes an interface circuit and a lock body state circuit; the interface circuit The corresponding terminals of the lock body state circuit are all electrically connected to the corresponding terminals of the STC8H3K64S4 chip.

The technical scheme of the present invention has the following beneficial effects: the smart parking lock of the present invention has functions such as alarm, voice prompt, water level detection, etc., and can prevent the car to be charged from escaping. The smart parking lock on this parking space can be remotely opened through a mobile phone, which is convenient and practical, and replaces manual charging; good air tightness, the design of sealing ring, sealing ring and oil seal TC improves the air tightness of the chassis and prevents rainwater from entering the chassis and damaging the interior components to improve the service life of the components; the design of the reinforcement component is used to strengthen the baffle, and at the same time can improve the anti-collision ability of the baffle; the design of the wire pipe avoids the disorderly placement of wires; the design of the baffle rotating shaft stopper , used to limit the position of the rotation axis of the baffle, and at the same time, when the baffle is impacted, to avoid the baffle from being punched open; the use of intelligent control instead of manual control of the parking space lock, the power supply part uses the battery anti-reverse connection module to protect the power supply, The power detection module can detect the power of the power supply, and can provide the laser sensor connected with the laser interface module for ranging function; the car owner can remotely open the parking space lock on the parking space through the mobile phone by scanning the QR code pasted on the parking space lock .

Description of drawings

Fig. 1 is a schematic structural diagram one of the present invention;

Fig. 2 is the structure schematic diagram two of the present invention;

3 is a schematic structural diagram 1 of the base plate assembly and the baffle assembly of the present invention;

4 is a second structural schematic diagram of the base plate assembly and the baffle assembly of the present invention;

FIG. 5 is a third structural schematic diagram of the base plate assembly and the baffle assembly of the present invention;

6 is a schematic structural diagram of the rotating connecting rod assembly of the present invention;

7 is a schematic structural diagram of the chassis of the present invention;

8 is a schematic structural diagram of the chassis base plate of the present invention;

9 is a schematic diagram 1 of the internal structure of the chassis of the present invention;

FIG. 10 is a second schematic diagram of the internal structure of the chassis of the present invention;

11 is a schematic diagram 3 of the internal structure of the chassis of the present invention;

FIG. 12 is a fourth schematic diagram of the internal structure of the chassis of the present invention;

13 is a schematic diagram of the circuit of the present invention;

14 is a schematic diagram of the main control circuit of the present invention;

15 is a schematic diagram of the power supply control circuit of the present invention;

16 is a schematic diagram of the wireless communication circuit of the present invention;

Fig. 17 is a circuit schematic diagram of the motor position detection circuit of the present invention;

18 is a schematic diagram of the motor drive circuit of the present invention;

FIG. 19 is a circuit schematic diagram of the ground induction coil detection circuit of the present invention;

20 is a schematic diagram of the voice prompt circuit of the present invention;

Figure 21 is a schematic diagram of the control circuit of the alarm device of the present invention;

Fig. 22 is the circuit schematic diagram of the laser interface circuit of the present invention;

Fig. 23 is the circuit schematic diagram of the indicator light control circuit of the present invention;

Fig. 24 is the circuit schematic diagram of the water level detection circuit of the present invention;

Fig. 25 is the circuit schematic diagram of the lock body state circuit of the present invention;

26 is a schematic diagram of the interface circuit of the present invention;

FIG. 27 is a schematic diagram of the ultrasonic detection circuit of the present invention.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore It should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, the first feature is "on" or "on" the second feature

"Under" may include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature therebetween. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

1 to 27, the present invention provides an intelligent parking space lock, comprising: a base plate assembly 1, a chassis assembly 3 and a baffle assembly 2 disposed on the base plate assembly 1, and a two-dimensional code pasted on the chassis assembly 3;

The base plate assembly 1 includes a base plate 101, a plurality of rotating link assemblies 103 and wire conduits 110 disposed on the base plate 101, and a base 102 disposed at the end of the base plate 101; the base 102 is provided with a laser sensor 104 and an ultrasonic wave sensor 105; the laser sensor 104 is installed on both sides of the base 102, and the ultrasonic sensor 105 is installed on the top of the base 102;

The baffle assembly 2 includes a baffle 201, a baffle rotating shaft 202 arranged at the bottom end of the baffle 201, a plurality of nylon rollers 203 arranged at the top of the baffle 201, and a reinforcement assembly installed on the baffle 201;

One end of each of the rotating link assemblies 103 is hinged with the bottom plate 101, and the other end is hinged with the baffle plate 201;

The chassis assembly 3 includes a chassis 301, an indicator light 305 disposed on the chassis 301, a drive mechanism, a PCB board 308, a power supply 311 and a control box 312, an alarm device 300, and a water level detection mechanism 314 disposed in the chassis 301; The output end of the drive mechanism is connected with the baffle rotation shaft 202;

The driving mechanism includes a motor 307, a screw rod 310 disposed at the output end of the motor 307, a screw rod guide block 315 disposed on the screw rod 310, a rotating shaft sheet metal guide block 316 installed at both ends of the screw guide block 315, and the sheet metal through the rotating shaft. The rotating shaft 325 of the guide block 316, the front end bearing sleeve 318 and the rear end bearing sleeve 317 installed at both ends of the rotating shaft 325; the two ends of the screw guide block 315 are provided with bumps, correspondingly, the sheet metal guide block 316 end of the rotating shaft The motor 307 is installed on the motor seat in the chassis 301, the motor mounting seat is also installed with a PCB board fixing plate 309, the corresponding PCB board 308 is installed on the PCB board fixing board 309, and is placed on the screw Above the guide block 315 .

Referring to FIGS. 3 to 5 , in this embodiment, the fixed sealing plate 107 is inclined downward to facilitate the rolling up of the tires of the automobile; A plurality of sealing plates 120 are fixed on the bottom plate 101. One end of the wire conduit 110 is placed in the base 102, and the other end is close to the chassis 301; Covered with cover plate 120. The bottom plate 101 is also provided with a plurality of baffle rotating shaft blocks 106 arranged side by side to limit the position of the baffle rotating shaft 202 and prevent the baffle 201 from being punched open when the baffle 201 is impacted.

The reinforcement assembly in this embodiment is designed to strengthen the baffle 201 and at the same time improve the anti-collision capability of the baffle 201; the reinforcement assembly includes a plurality of first reinforcement ribs 204; the first reinforcement ribs 204 are arranged side by side On the baffle plate 201, it is evenly divided into three sections, which are section one, section two, and section three; the top of each section is correspondingly installed with a nylon drum 203, and the nylon drum 203 is placed on two adjacent Between the first reinforcing ribs 204 ; the end of the first reinforcing ribs 204 is also provided with an arc-shaped bayonet, which is used for clamping the rotating shaft 202 of the baffle plate.

Referring to FIG. 6 , in this embodiment, the number of rotating link assemblies 103 is two, which are correspondingly installed in the first and third sections formed by the baffle 201 and the first reinforcing rib 204 . , the first and third sections have enough accommodation space to accommodate the rotating link assembly 103, so as to avoid being exposed to the baffle 201 and being crushed by the exiting or entering vehicles;

Each of the rotating link assemblies 103 includes a lower rotating link hinge base 103a, a lower rotating link 103b, a pin 103h, an upper rotating link 103d, a second pin 103c, an upper rotating link hinge base 103e, a pin The third axis 103g; one end of the lower rotating link 103b is installed on the lower rotating link hinge seat 103a through a pin 1 103h, and the other end is connected to one end of the upper rotating link 103d through a second pin 103c; the upper rotating link 103d The other end is mounted on the upper rotating link hinge base 103e through the third pin 103g; the lower rotating link hinge base 103a is fixed on the bottom plate 101; the upper rotating link hinge base 103r is fixed on the baffle 201. In this embodiment, the lower rotating link hinge base 103a includes two opposite lower rotating link bases 1 and 2, and one end of the lower rotating link 103b is placed on the lower rotating link base 1 and the lower rotating link base. between the second connecting rod bases; the first pin shaft 103h penetrates the first lower rotating connecting rod base, the end of the lower rotating connecting rod 103b, and the second lower rotating connecting rod base in sequence, and the lower rotating connecting rod 103b is installed on the lower rotating connecting rod hinge On the seat 103a; the second pin shaft 103c penetrates the other end of the lower rotating link 103b and one end of the upper rotating link 103d in sequence; Rod seat 2, the other end of the upper rotating connecting rod 103d is placed between the upper rotating connecting rod seat 1 and the upper rotating connecting rod seat 2; The other end of the connecting rod 103d, the second upper rotating link seat, is to install the upper rotating link 103d on the upper rotating link hinge seat 103e.

7 to 12 , the design of the sealing ring 345 in this embodiment can seal the connection between the long cover 302 and the first case to prevent rainwater from entering; It is used to fix the case 301 on the bottom plate 101, and a handle 340 is also provided on the side wall of the case 301 to facilitate the mechanical movement of the machine; The top of the first case is provided with a sealing ring 345 and a long cover 302 in turn; the sealing ring 345 is arranged between the first case and the long cover 302; the top of the second case is provided with a short machine Cover 303, the short cover 303 is also provided with an acrylic cover 304; the indicator light 305 is placed next to the acrylic cover 304 and installed on the short cover 304; the two-dimensional code is pasted on the acrylic cover 304 superior.

In this embodiment, the design of the water level detection mechanism 314 is convenient for detecting the water level; the driving mechanism and the PCB board 308 are all arranged in the first case; the power supply 311 , the control box 312 , the alarm device 300 and the water level detection mechanism 314 are all arranged in the case The alarm device 300 is arranged on the side wall of the second case, and the alarm device 300 can be arranged at the end of the second case and placed next to the water level detection mechanism 314; the water level detection mechanism 314 is arranged at the end of the second case The lower part of the water level detection mechanism 314 is provided with a water level detection port 350, the water level detection port 350 is formed by a water baffle 313 and the two side walls of the chassis; the alarm device 300 is set as a horn, and the water level detection mechanism 314 is set as a floating ball switch.

In this embodiment, the design of the sealing ring 323 and the oil seal TC 321 can improve the sealing performance of the chassis, prevent rainwater from entering, and damage the internal components; the front bearing sleeve 318 is sleeved on the rotating shaft 325, and sleeves are arranged at the sleeves in turn. The sealing ring 323, the rotating shaft sleeve 322, and the oil seal TC 321 on the rotating shaft 325; the front end of the rotating shaft 325 is also sleeved with a left sheet metal cover 319 of the rotating shaft for fixing with the front end bearing sleeve 318. The front end of the rotating shaft 325 is also provided with a U-shaped coupling sleeve 320, and the U-shaped coupling sleeve 320 is placed next to the left sheet metal cover 319 of the rotating shaft. The U-shaped coupling sleeve 320 is used for connecting with the baffle rotating shaft 202. Connection; the rear end bearing sleeve 317 is arranged at the rear end of the rotating shaft 325 .

The working principle of this smart parking lock:

After the car enters the parking space, the motor drives the rotating shaft 325 to rotate, which in turn drives the baffle 201 to turn over to a certain inclination, and the baffle 201 will prevent the car from passing through. The baffle 201 continues to turn over to prevent the car to be charged from escaping; after the person scans the two-digit code to pay, the motor drives to drive the rotating shaft 325, which in turn drives the baffle 201 to turn down and abut the bottom plate 101 to return, and the person drives out of the vehicle That's it.

13 to 27 , the present invention also provides an intelligent parking space lock control circuit, which is configured on the PCB board and includes a main control circuit S1, an alarm device control circuit S9, a motor position detection circuit S4, and a motor drive circuit S5 , wireless communication circuit S3, voice prompt circuit S8, water level detection circuit S12, laser interface circuit S10, ground induction coil detection circuit S6, power supply control circuit S2, indicator light control circuit S11, ultrasonic detection circuit S30;

The corresponding ends of the main control circuit S1 are respectively connected with the alarm device control circuit S9, the motor position detection circuit S4, the motor drive circuit S5, the wireless communication circuit S3, the voice prompt circuit S8, the water level detection circuit S12, the laser interface circuit S10, and the ground induction coil. The detection circuit S6, the power supply control circuit S2, the indicator light control circuit S11, and the ultrasonic detection circuit S30 are electrically connected to corresponding ends;

The motor drive circuit S5 includes a motor forward rotation circuit S501, a motor reverse rotation circuit S502, and a motor stall detection circuit S503; the motor corresponding ends are respectively electrically connected to a corresponding terminal of the motor forward rotation circuit S501 and the motor reverse rotation circuit S502 ; The corresponding ends of the motor stall detection circuit S503 are also electrically connected to the other corresponding ends of the motor forward rotation circuit S501, the motor reverse rotation circuit S502, and the main control circuit S1 respectively;

The power supply control circuit S2 includes a battery anti-reverse connection circuit S201, a power supply circuit S202, and a power detection circuit S203; the corresponding terminals of the battery anti-reverse connection circuit S201 are respectively electrically connected to the corresponding terminals of the power supply circuit S202 and the power detection circuit S203. The corresponding ends of the power supply circuit S202 and the power detection circuit S203 are also electrically connected to the corresponding ends of the main control circuit S1 respectively.

14 and 15 , the main control circuit S1 includes an MCU control circuit S101 and an MCU power supply circuit S102 electrically connected to the corresponding end of the MCU control circuit S101; the corresponding end of the power supply circuit S202 corresponds to the end of the MCU power supply circuit S102 electrical connection; the MCU control circuit S101 includes a STC8H3K64S4 chip and its peripheral circuits; the MCU power supply circuit S102 includes a rt9193-33 voltage regulator chip, which is used to stabilize the 4.2V voltage input by the power supply circuit S202 to 3.3V Supply power to the MCU control circuit.

Referring to FIG. 16 , the battery anti-reverse connection circuit S201 includes a power supply J4; the power supply circuit S202 is set as the MP1584EN power supply step-down chip and its peripheral circuits, and the MP1584EN power supply step-down chip is used to convert the input 12V voltage into 4.2V Supply power to the MCU power supply circuit; the power detection circuit S203 includes a resistor R9, a resistor R15, a resistor R18, a resistor R24, a resistor R25, a transistor Q2, a transistor Q6, and a capacitor C5; one end of the resistor R24 is electrically connected to the corresponding end of the STC8H3K64S4 chip , the other end is electrically connected to one end of the resistor R15 through the transistor Q6 and is grounded, and the other end of the resistor R15 is electrically connected to the resistor R9 and the second end of the transistor Q2 respectively; the other end of the resistor R9 is electrically connected to the first end of the transistor Q2; The third end of the transistor Q2 is electrically connected to one end of the resistor R25, one end of the capacitor C5, and the corresponding end of the STC8H3K64S4 chip through the resistor R18, respectively; the other ends of the resistor R25 and the capacitor C5 are grounded.

17 , the wireless communication circuit S3 includes a wireless WIFI circuit S302 and a 4G communication module circuit S301; the wireless WIFI circuit S302 includes an ESP8266-07 chip and its peripheral circuits, and the corresponding end of the ESP8266-07 chip corresponds to the STC8H3K64S4 chip The terminals are electrically connected; the 4G communication module circuit S301 includes a SIM7020 chip and its peripheral circuits, and the corresponding terminal of the SIM7020 chip is electrically connected to the corresponding terminal of the STC8H3K64S4 chip.

In this embodiment, the two-dimensional code S200 is installed on the acrylic cover 304 of the parking space lock. Each parking space lock is equipped with a different two-dimensional code. If the owner wants to park in this parking space, he can scan the two-dimensional code with his mobile phone. Each parking space corresponds to a QR code with a unique identification. The owner of the car connects to the server through a mobile phone (using WeChat or Alipay to control unlocking, locking, and paying fees), then sends it to the 4G communication module, and finally sends it to the MCU to process and unlock the corresponding parking space lock. Self-parking is possible.

18 , the motor position detection circuit S4 includes a first motor position detection circuit S401 and a second motor position detection circuit S402;

The first motor position detection circuit S401 includes a resistor R1, a capacitor C1, a resistor R2, and a capacitor C2; one end of the resistor R1 is connected to the 3.3V power supply terminal, and the other end is electrically connected to the STC8H3K64S4 chip and one end of the capacitor C1; the The other end of the capacitor C1 is grounded; one end of the resistor R2 is connected to the 3.3V power supply terminal, and the other end is electrically connected to the STC8H3K64S4 chip and one end of the capacitor C2, and the other end of the capacitor C2 is grounded;

The second motor position detection circuit S402 includes a connector J9, a resistor R43, a resistor R45, a resistor R46, a resistor R57, a capacitor C22, a capacitor C23, a capacitor C24, and a transistor Q9; the first ends of the connector J9 are respectively connected to the One end of the resistor R46, one end of the capacitor C24, and the corresponding end of the STC8H3K64S4 chip are electrically connected, the other end of the resistor R46 is connected to the 3.3V power supply end, and the other end of the capacitor C24 is grounded; the second end of the connector J9 is respectively connected to the resistor R45 One end, one end of the capacitor C23, and the corresponding end of the STC8H3K64S4 chip are electrically connected, the other end of the resistor R45 is connected to the 3.3V power supply, and the other end of the capacitor C23 is grounded; the third end of the connector J9 is grounded; the plug The fourth end of the component J9 is electrically connected to one end of the capacitor C22 and the transistor Q9 respectively, and the other end of the capacitor C22 is grounded; the second end of the transistor Q9 is electrically connected to one end of the resistor R43 and the resistor R57 respectively, and the other end of the resistor R43 is electrically connected It is electrically connected to the corresponding terminal of the STC8H3K64S4 chip; the third terminal of the transistor Q9 is electrically connected to the other terminal of the resistor R57 and the 3.3V power supply terminal, respectively.

19, the motor forward rotation circuit S501 includes a relay JK1, a resistor R3, a resistor R58, a transistor Q1, and a diode D1; the first terminal of the relay JK1 is electrically connected to the corresponding terminal of the motor; the fourth terminal of the relay JK1 is respectively It is electrically connected to one end of the diode D1 and the transistor Q1, and the other end of the diode D1 is electrically connected to the fifth end of the relay JK1; one end of the resistor R3 is electrically connected to the corresponding end of the STC8H3K64S4 chip, and the other end is respectively connected to the second end of the transistor Q1. , one end of the resistor R58 is electrically connected; the other end of the resistor R58 is electrically connected and grounded with the third end of the transistor Q1;

The motor reversing circuit S502 includes a relay JK2, a resistor R19, a resistor R59, a transistor Q7, and a diode D7; the first end of the relay JK2 is electrically connected to the corresponding end of the motor; the fourth end of the relay JK2 is respectively connected to the diode D7, One end of the transistor Q7 is electrically connected, and the other end of the diode D7 is electrically connected to the fifth end of the relay JK2; one end of the resistor R19 is electrically connected to the corresponding end of the STC8H3K64S4 chip, and the other end is respectively connected to the second end of the transistor Q7 and one end of the resistor R59 Electrical connection; the other end of the resistor R59 is electrically connected to the third end of the transistor Q7 and grounded.

The motor stall detection circuit S503 includes a resistor R4, a resistor R5, and a capacitor C4; one end of the resistor R4 is electrically connected to the second end of the relay JK1 and the second end of the relay JK2, respectively, and the other end is respectively connected to the resistor R5 and one end of the capacitor C4. Electrical connection; the other end of the resistor R5 is electrically connected to the corresponding end of the STC8H3K64S4 chip, and the other end of the capacitor C4 is grounded.

Referring to FIG. 20 , the ground sensing coil detection circuit S6 includes: a connector j1, a resistor RA1, a resistor RA2, a resistor RA3, a resistor RA4, a resistor RA5, a resistor RA6, a resistor RA7, a resistor RA8, a resistor RA9, a capacitor CA1, a capacitor CA3, triode PA1, triode PA2, triode PA3, triode PA4;

A corresponding end of the connector j1 is electrically connected to the third end of the transistor PA3, the resistor RA2, the resistor RA6, and one end of the capacitor CA3 respectively; connected; the other end of the resistor RA6 is electrically connected to one end of the resistor RA4, one end of the resistor RA8, and the second end of the triode PA2 through the capacitor CA1, and the other end of the resistor RA4 is electrically connected to one end of the resistor RA3 and the resistor RA5 respectively; the The first end of the triode PA2 is electrically connected to the other end of the resistor RA3 and the first end of the triode PA3 respectively; the second end of the triode PA3 is respectively electrically connected to the other end of the resistor RA5 and one end of the resistor RA7; the other end of the resistor RA7 is respectively connected to The other end of the resistor RA8 and the first end of the transistor PA4 are electrically connected; the second end of the transistor PA4 is electrically connected to the corresponding end of the STC8H3K64S4 chip through the resistor RA9, and the third end of the transistor PA4 is grounded.

Referring to FIG. 21 , the voice prompt circuit S8 includes a WT588F02B voice chip and its peripheral circuits, and the corresponding terminal of the WT588F02B voice chip is electrically connected to the corresponding terminal of the STC8H3K64S4 chip.

22 to 27, the alarm device control circuit S9 is used to control the horn installed on the intelligent parking space lock chassis; the laser interface circuit S10 includes a laser interface circuit S1001, which is used to connect and install on the intelligent parking space lock base 102 The laser sensor 104 inside; the ultrasonic detection circuit S30 is used to connect the ultrasonic sensor 105 installed in the base 102 of the smart parking lock;

The water level detection circuit S12 is used to connect the water level detection switch, and the water level detection switch can be a float switch or a water level sensing probe, which is a float switch in this solution; the intelligent parking space lock control circuit also includes an interface circuit S150, a lock body The state circuit S130; the corresponding ends of the interface circuit 150 and the lock body state circuit 130 are electrically connected to the corresponding ends of the STC8H3K64S4 chip.

The invention adopts intelligent control instead of manual control of parking space lock, and has functions such as alarm, voice prompt, water level detection, etc. The power supply part adopts battery anti-reverse connection circuit to protect the power supply, and the power detection circuit can detect the power of the power supply, which can provide The laser sensor connected to the laser interface circuit performs the ranging function, and the ultrasonic detection circuit is used to detect the reliability of the vehicle; the car owner can remotely open the parking space lock on the parking space through the mobile phone by scanning the QR code pasted on the parking space lock .

The above descriptions are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformations made by the contents of the description and drawings of the present invention, or the direct/indirect application Other related technical fields are included in the scope of patent protection of the present invention.

The above descriptions are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformations made by the contents of the description and drawings of the present invention, or the direct/indirect application Other related technical fields are included in the scope of patent protection of the present invention.

Claims (18)

1. an intelligent parking space lock, is characterized in that, comprises: base plate assembly, the chassis assembly and baffle plate assembly that are arranged on the base plate assembly, and the two-dimensional code that is pasted on the chassis assembly; The base plate assembly comprises a base plate, several rotating link assemblies and wire conduits arranged on the base plate, and a base arranged at the end of the base plate; a laser sensor and an ultrasonic sensor are installed in the base; The baffle assembly includes a baffle plate, a baffle plate rotating shaft arranged at the bottom end of the baffle plate, a plurality of nylon rollers arranged at the top end of the baffle plate, and a reinforcement assembly installed on the baffle plate; One end of each said rotating link assembly is hinged with the bottom plate, and the other end is hinged with the baffle plate; The chassis component includes a chassis, an indicator light disposed on the chassis, and a drive mechanism, a PCB board, a power supply and a control box, an alarm device, and a water level detection mechanism disposed in the chassis; the output end of the drive mechanism rotates with the baffle plate. shaft connection. 2 . The smart parking space lock according to claim 1 , wherein each of the rotating link assemblies comprises a lower rotating link hinge seat, a lower rotating link, a pin shaft, an upper rotating link, and a pin shaft 2 . 2. The hinge seat of the upper rotating link and the third pin; one end of the lower rotating link is installed on the hinge seat of the lower rotating link through the first pin, and the other end is connected to one end of the upper rotating link through the second pin; the upper The other end of the rotating connecting rod is installed on the hinge seat of the upper rotating connecting rod through the third pin; the hinge seat of the lower rotating connecting rod is fixed on the bottom plate; the hinge base of the upper rotating connecting rod is fixed on the baffle plate. 3. The intelligent parking space lock according to claim 1, wherein the wire passage is fixed on the bottom plate through a plurality of sealing plates, one end of the wire passage is placed in the base, and the other end is close to the chassis; the sealing plate The top is also provided with an inclined fixed sealing plate to cover the wire conduit and the sealing plate; the bottom plate is also provided with several baffle rotating shaft stops arranged side by side to limit the position of the baffle rotating shaft. 4 . The intelligent parking space lock according to claim 2 , wherein the reinforcing assembly comprises a plurality of first reinforcing ribs; the first reinforcing ribs are arranged side by side on the baffle plate, and are evenly divided into three sections; 5 . The top of each section is correspondingly installed with a described nylon roller, which is placed between two adjacent first reinforcing ribs; the end of the first reinforcing ribs is also provided with an arc-shaped bayonet for clamping Baffle rotation axis. 5. The intelligent parking space lock according to claim 3, wherein a number of wildebeests are also arranged around the bottom of the case for fixing the case on the bottom plate, and a handle is also provided on the side wall of the case The middle part of the case is provided with a sealing plate, which divides the case into a case one and a case two; the top of the case one is sequentially provided with a sealing ring and a long cover; the sealing ring is arranged between the case one and the long cover There is a short cover on the top of the second case, and an acrylic cover is also provided on the short cover; the indicator light is placed next to the acrylic cover and installed on the short cover; the two-dimensional code is pasted on an acrylic cover. 6. The intelligent parking space lock according to claim 3, wherein the drive mechanism and the PCB board are all arranged in the first case; the power supply, the control box, the alarm device and the water level detection mechanism are all arranged in the second case The alarm device is arranged on the side wall of the second case; the water level detection mechanism is arranged at the end of the second case, and a water level detection port is arranged below the water level detection mechanism. The water level detection port is connected to the case two through a water barrier sidewalls are formed. 7 . The intelligent parking space lock according to claim 4 , wherein the driving mechanism comprises a motor, a screw rod arranged at the output end of the motor, a screw guide block arranged on the screw rod, and a rotating shaft plate installed at both ends of the screw guide block. 8 . A metal guide block, a rotating shaft through which the sheet metal guide block of the rotating shaft is inserted, and a front end bearing sleeve and a rear end bearing sleeve installed at both ends of the rotating shaft. 8 . The intelligent parking space lock according to claim 4 , wherein the front end bearing is sleeved on the rotating shaft, and the sleeve is sequentially provided with a sealing ring sleeved on the rotating shaft, a rotating shaft sleeve, Oil seal TC; the front end of the rotating shaft is also sleeved with the left sheet metal cover of the rotating shaft for fixing with the front bearing sleeve, and the front end of the rotating shaft is also provided with a U-shaped coupling sleeve. Placed next to the left sheet metal cover of the rotating shaft, the U-shaped coupling sleeve is used to connect with the baffle rotating shaft; the rear end bearing sleeve is arranged at the rear end of the rotating shaft. 9. The control circuit of the intelligent parking space lock according to any one of claims 1-8, which is configured on the PCB board, characterized in that it comprises: a main control circuit, an alarm device control circuit, a motor position detection circuit, Motor drive circuit, wireless communication circuit, voice prompt circuit, water level detection circuit, laser interface circuit, ground induction coil detection circuit, power control circuit, indicator light control circuit, ultrasonic detection circuit; The corresponding ends of the main control circuit are respectively connected with the alarm device control circuit, the motor position detection circuit, the motor drive circuit, the wireless communication circuit, the voice prompt circuit, the water level detection circuit, the laser interface circuit, the ground induction coil detection circuit, and the whole machine power supply control circuit. , The corresponding terminals of the indicator light control circuit and the ultrasonic detection circuit are electrically connected; The motor drive circuit includes a motor forward rotation circuit, a motor reverse rotation circuit, and a motor stall detection circuit; the corresponding ends of the motor are respectively electrically connected with a corresponding terminal of the motor forward rotation circuit and the motor reverse rotation circuit; the motor stalls The corresponding ends of the detection circuit are also electrically connected to the other corresponding ends of the motor forward rotation circuit, the motor reverse rotation circuit and the main control circuit respectively; The power supply control circuit of the whole machine includes a battery anti-reverse connection circuit, a power supply circuit, and a power detection circuit; the corresponding ends of the battery anti-reverse connection circuit are respectively electrically connected with the corresponding ends of the power supply circuit and the power detection circuit; the power supply The corresponding ends of the circuit and the power detection circuit are also electrically connected to the corresponding ends of the main control circuit respectively. 10. The control circuit of an intelligent parking space lock according to claim 9, wherein the main control circuit comprises an MCU control circuit and an MCU power supply circuit electrically connected to a corresponding end of the MCU control circuit; the power supply circuit corresponds to The terminal is electrically connected with the corresponding terminal of the MCU power supply circuit; the MCU control circuit includes a STC8H3K64S4 chip and its peripheral circuits; the MCU power supply circuit includes an rt9193-33 voltage regulator chip, which is used to stabilize the 4.2V voltage input by the power supply circuit. Press it to 3.3V to supply power to the MCU control circuit. 11. The control circuit of the intelligent parking space lock according to claim 10, wherein the power supply circuit comprises a complete machine power supply circuit, and the complete machine power supply circuit is set as MP1584EN power supply step-down chip and its peripheral circuit, MP1584EN power supply The step-down chip is used to convert the input 12V voltage into 4.2V to supply power to the MCU power supply circuit. 12 . The control circuit of the smart parking space lock according to claim 11 , wherein the wireless communication circuit comprises a wireless WIFI circuit and a 4G communication module circuit; the wireless WIFI circuit comprises an ESP8266-07 chip and its peripheral circuits. 13 . , the corresponding end of the ESP8266-07 chip is electrically connected to the corresponding end of the STC8H3K64S4 chip; the 4G communication module circuit includes a SIM7020 chip and its peripheral circuits, and the corresponding end of the SIM7020 chip is electrically connected to the corresponding end of the STC8H3K64S4 chip. 13. The control circuit of the intelligent parking space lock according to claim 12, wherein the motor position detection circuit comprises a first motor position detection circuit and a second motor position detection circuit; The first motor position detection circuit includes a resistor R1, a capacitor C1, a resistor R2, and a capacitor C2; one end of the resistor R1 is connected to the 3.3V power supply terminal, and the other end is electrically connected to the STC8H3K64S4 chip and one end of the capacitor C1; the capacitor The other end of C1 is grounded; one end of the resistor R2 is connected to the 3.3V power supply terminal, and the other end is electrically connected to the STC8H3K64S4 chip and one end of the capacitor C2, and the other end of the capacitor C2 is grounded; The second motor position detection circuit includes a connector J9, a resistor R43, a resistor R45, a resistor R46, a resistor R57, a capacitor C22, a capacitor C23, a capacitor C24, and a transistor Q9; the first end of the connector J9 is respectively connected to the resistor. One end of R46, one end of capacitor C24, and the corresponding end of the STC8H3K64S4 chip are electrically connected, the other end of the resistor R46 is connected to the 3.3V power supply end, and the other end of the capacitor C24 is grounded; the second end of the connector J9 is respectively connected to one end of the resistor R45 , one end of the capacitor C23 is electrically connected to the corresponding end of the STC8H3K64S4 chip, the other end of the resistor R45 is connected to the 3.3V power supply, and the other end of the capacitor C23 is grounded; the third end of the connector J9 is grounded; the connector The fourth end of J9 is electrically connected to one end of the capacitor C22 and the transistor Q9 respectively, and the other end of the capacitor C22 is grounded; the second end of the transistor Q9 is electrically connected to one end of the resistor R43 and the resistor R57 respectively, and the other end of the resistor R43 is connected to the ground. The corresponding terminals of the STC8H3K64S4 chip are electrically connected; the third terminal of the transistor Q9 is electrically connected to the other terminal of the resistor R57 and the 3.3V power supply terminal, respectively. 14. The control circuit of an intelligent parking space lock according to claim 13, wherein the motor forward rotation circuit comprises a relay JK1, a resistor R3, a resistor R58, a transistor Q1, and a diode D1; the first end of the relay JK1 is connected to the The corresponding terminals of the motor are electrically connected; the fourth terminal of the relay JK1 is electrically connected to one end of the diode D1 and the transistor Q1 respectively, and the other end of the diode D1 is electrically connected to the fifth terminal of the relay JK1; one end of the resistor R3 is electrically connected to the STC8H3K64S4 chip The corresponding ends are electrically connected, and the other end is electrically connected to the second end of the transistor Q1 and one end of the resistor R58 respectively; the other end of the resistor R58 is electrically connected to the third end of the transistor Q1 and grounded. 15. The control circuit of the intelligent parking space lock according to claim 14, wherein the motor reversing circuit comprises a relay JK2, a resistor R19, a resistor R59, a transistor Q7, and a diode D7; the first end of the relay JK2 is connected to a The corresponding terminals of the motor are electrically connected; the fourth terminal of the relay JK2 is electrically connected to one end of the diode D7 and the transistor Q7 respectively, and the other end of the diode D7 is electrically connected to the fifth terminal of the relay JK2; one end of the resistor R19 is electrically connected to the STC8H3K64S4 chip The corresponding ends are electrically connected, and the other end is electrically connected to the second end of the transistor Q7 and one end of the resistor R59 respectively; the other end of the resistor R59 is electrically connected to the third end of the transistor Q7 and grounded. 16. The control circuit of the intelligent parking space lock according to claim 15, wherein the motor stall detection circuit comprises a resistor R4, a resistor R5 and a capacitor C4; one end of the resistor R4 is respectively connected with the second end of the relay JK1, The second end of the relay JK2 is electrically connected, and the other end is electrically connected to one end of the resistor R5 and the capacitor C4 respectively; the other end of the resistor R5 is electrically connected to the corresponding end of the STC8H3K64S4 chip, and the other end of the capacitor C4 is grounded. 17. The control circuit of an intelligent parking space lock according to claim 16, wherein the ground sensing coil detection circuit comprises: a connector j1, a resistor RA1, a resistor RA2, a resistor RA3, a resistor RA4, a resistor RA5, a resistor RA6, resistor RA7, resistor RA8, resistor RA9, capacitor CA1, capacitor CA3, transistor PA1, transistor PA2, transistor PA3, transistor PA4; A corresponding end of the connector j1 is electrically connected to the third end of the transistor PA3, the resistor RA2, the resistor RA6, and one end of the capacitor CA3 respectively; connection; the other end of the resistor RA6 is electrically connected to one end of the resistor RA4, one end of the resistor RA8, and the second end of the triode PA2 through the capacitor CA1, respectively, and the other end of the resistor RA4 is electrically connected to one end of the resistor RA3 and the resistor RA5 respectively; the The first end of the triode PA2 is electrically connected to the other end of the resistor RA3 and the first end of the triode PA3 respectively; the second end of the triode PA3 is respectively electrically connected to the other end of the resistor RA5 and one end of the resistor RA7; the other end of the resistor RA7 is respectively connected to The other end of the resistor RA8 and the first end of the transistor PA4 are electrically connected; the second end of the transistor PA4 is electrically connected to the corresponding end of the STC8H3K64S4 chip through the resistor RA9, and the third end of the transistor PA4 is grounded. 18. The control circuit of an intelligent parking space lock according to claim 17, wherein the voice prompt circuit comprises a WT588F02B voice chip and its peripheral circuits, and the corresponding end of the WT588F02B voice chip is electrically connected with the corresponding end of the STC8H3K64S4 chip; The intelligent parking space lock control circuit further includes an interface circuit and a lock body state circuit; the corresponding ends of the interface circuit and the lock body state circuit are both electrically connected to the corresponding ends of the STC8H3K64S4 chip.

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