CN113034968B

CN113034968B - Internet of things parking system

Info

Publication number: CN113034968B
Application number: CN202110294765.0A
Authority: CN
Inventors: 刘畅; 夏斐; 周永亮
Original assignee: Zhuhai Yijian Intelligent Technology Co ltd
Current assignee: Zhuhai Yijian Intelligent Technology Co ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2022-03-01
Anticipated expiration: 2041-03-19
Also published as: CN113034968A

Abstract

An internet of things parking system comprises an entrance guard device body and a stabilized voltage power supply, wherein the entrance guard device body is arranged at an intersection of a parking area and is characterized by also comprising parking control equipment, an entrance control circuit and an exit control circuit; the parking control equipment comprises a plurality of photoelectric switches, a relay and an LED display screen, wherein an opening is vertically distributed on the road surface of each parking space in the parking area, the photoelectric switches are respectively and vertically arranged in the openings, and the LED display screen is arranged at the inlet side end of the parking area; the door entrance control circuit and the door exit control circuit respectively comprise an infrared detection switch and a time control circuit, and the infrared detection switches are arranged at an entrance and an exit of the door control device body; the relays of the time control circuit, the stabilized voltage power supply and the parking control equipment are arranged in the element box and are electrically connected with the entrance guard device body, the plurality of photoelectric switches and the infrared detection switch. The invention fully achieves intelligent management and brings convenience to both a vehicle driver and a manager.

Description

Internet of things parking system

Technical Field

The invention relates to the technical field of parking management equipment, in particular to an internet of things parking system.

Background

The control of intersections of parking areas such as residential areas, factories and large-scale markets generally adopts an access control device. After the vehicle is swiped before entering and exiting the parking area or after artificial intelligence identification, the lifting rod of the entrance guard device automatically rises or falls, so that the vehicle can enter or exit the parking area. The current entrance guard's device is because the structure is limited, can't effectively realize intelligent management, for example before the vehicle gets into the parking area, if the parking area does not have the parking stall, the device can't play the suggestion effect, like this the vehicle drive in the parking area back owing to can not find the parking stall, can bring very big inconvenience for the car owner, and also do not benefit to the regional vehicle efficiency of commuting of parking yet. Based on the above, it is especially necessary to provide a system capable of realizing intelligent parking management based on the internet of things.

Disclosure of Invention

In order to overcome the defects that the prior entrance guard device adopted at the intersection of parking areas such as residential districts, factories and large-scale markets is limited by the structure, before vehicles enter the parking areas, if the parking area has no parking space, the device can not play a role in prompting, and after the vehicle drives into the parking area, the vehicle can bring great inconvenience to the vehicle owner because the parking space can not be found, and is also not beneficial to the disadvantage of the commuting efficiency of the vehicles in the parking area, the invention provides the system based on the Internet of things, does not need human management, the parking lot door prompting device can be installed and used in any parking area, when the parking area has no parking space, the prompting device at the door of the parking lot can visually give a prompt to a driver of a vehicle to prevent the vehicle from entering the parking area and being incapable of parking, and when the parking area does not have the parking position, the lifting rod of the entrance guard device body can not be opened, and only vehicles driving away from the parking area are released, so that the Internet of things parking system for full intelligent management is achieved.

The technical scheme adopted by the invention for solving the technical problems is as follows:

an internet of things parking system comprises an entrance guard device body and a stabilized voltage power supply, wherein the entrance guard device body is arranged at an intersection of a parking area and is characterized by also comprising parking control equipment, an entrance control circuit and an exit control circuit; the parking control equipment comprises a plurality of photoelectric switches, a relay and an LED display screen, wherein an opening is vertically distributed on the road surface of each parking space in the parking area, the photoelectric switches are respectively and vertically arranged in the openings, and the LED display screen is arranged at the inlet side end of the parking area; the parking control equipment comprises a parking control device, a plurality of photoelectric switches and a relay, wherein the positive power supply input end of a first photoelectric switch is electrically connected with the positive control power supply input end of the relay; the entrance control circuit and the exit control circuit are consistent in structure and respectively comprise an infrared detection switch and a time control circuit, the infrared detection switch of the entrance control circuit is transversely arranged at the front part of one side end of the entrance guard device body, and the infrared detection switch of the exit control circuit is transversely arranged at the rear part of one side end of the exit of the entrance guard device body; the time control circuit, the stabilized voltage power supply and the relay of the parking control equipment are arranged in the element box; the power supply output end of the stabilized voltage power supply is electrically connected with the power supply input ends of the parking control equipment and the door-out control circuit respectively, and the power supply output end of the parking control equipment is electrically connected with the power supply input end of the door-in control circuit; and the power output ends of the door entrance control circuit and the door exit control circuit are electrically connected with the positive power input end and the negative power input end of the lifting rod motor speed reducing mechanism of the door control device body respectively.

Further, the stabilized voltage supply is an alternating current to direct current switching power supply module.

Further, the photoelectric switch of the parking control apparatus is a reflective photoelectric switch sensor.

Furthermore, the door-in control circuit and the door-out control circuit respectively comprise relays and time control switches which are electrically connected, the time control switches are provided with two sets, a first relay positive electrode control power input end is connected with a first set of time control switch positive electrode power input end, a second relay positive electrode control power input end and a third relay positive electrode control power input end, a first relay normally-open end is connected with a first set of time control switch positive electrode trigger signal input end, a first relay normally-closed contact end is connected with a second set of time control switch positive electrode trigger signal input end, a first set of time control switch and a second set of time control switch negative electrode power input end and a second set of time control switch negative electrode trigger power input end are connected with a second relay and a third relay negative electrode power input end and a negative electrode control power input end, the first set of time control switch positive power supply output end, the second set of time control switch positive power supply output end and the second relay and the third relay positive power supply input end are respectively connected.

Furthermore, in the door entering control circuit and the door exiting control circuit, two ends of a power supply input of the infrared detection switch and two ends of a power supply input of the first set of time control switch are respectively connected through a wire, and two ends of a power supply output of the infrared detection switch and two ends of a power supply input of the first relay are respectively connected through a wire.

Furthermore, two button type power switches are connected in series with the positive power input end and the negative power input end of the motor reducing mechanism of the lifting rod equipment of the access control device body, and the first power switch and the second power switch are respectively installed on the upper portion of the left end and the lower portion of the right end of the shell on one side of the motor reducing mechanism of the lifting rod equipment of the access control device body.

The invention has the beneficial effects that: the intelligent parking control system is based on the Internet of things, does not need manual management, and can be installed and used in any parking area, in application, when the parking area has the rest parking spaces, the LED display screen of the parking control equipment cannot be powered on for displaying, the door entry control circuit can control the vehicles to approach and open the lifting rod before entering the parking area, and when the parking area has no parking spaces, the LED display screen of the parking control equipment can visually display that no parking spaces are available, so that the vehicles outside the parking lot can not drive into the parking lot any more; meanwhile, the door entering control circuit controls the lifting rod equipment not to work again until a parking space is available in the parking lot again, and the lifting rod equipment is controlled to work again (the door exiting control circuit always releases vehicles leaving the parking area). The invention fully achieves intelligent management and brings convenience to both a vehicle driver and a manager. Based on the above, the invention has good application prospect.

Drawings

The invention is further illustrated below with reference to the figures and examples.

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a circuit diagram of the present invention.

Detailed Description

As shown in fig. 1, an internet of things parking system comprises an access control device body 1 with a lifting rod device, a stabilized voltage power supply 2, a parking control device 3, an entrance control circuit and an exit control circuit, wherein the access control device body 1 is installed at an intersection of a parking area through a screw nut; the parking control equipment 3 comprises a plurality of photoelectric switches 31, a relay 32 and an LED display screen 33, wherein an opening is vertically distributed on the middle road surface of each parking space in the parking area, the plurality of photoelectric switches 31 are respectively and vertically arranged in the openings, the detection heads of the photoelectric switches 31 are positioned at the upper part, and the LED display screen 33 is arranged at the inlet side end of the parking area; the entrance control circuit and the exit control circuit are consistent in structure and respectively comprise an infrared detection switch 4 and a time control circuit 5, the infrared detection switch 4 of the entrance control circuit is transversely arranged at the position about 2 meters in front of the right side end of the entrance of the landing rod device 101 of the entrance device body, a detection head of the infrared detection switch 4 is positioned at the left part (1 meter above the ground), the infrared detection switch 4 of the exit control circuit is transversely arranged at the position about 2 meters behind the right side end of the exit of the landing rod device 101 of the entrance device body, and the detection head of the infrared detection switch 4 is positioned at the left part (1 meter above the ground); the time control circuit 5, the stabilized voltage power supply 2 and the relay 32 of the parking control device are arranged on a circuit board in an element box (the element box is arranged in a shell of the LED lifting rod device).

As shown in fig. 1 and 2, the regulated power supply a1 is a finished product of a 220V/24V ac-220V to dc-24V switching power supply module, and has an output power of 2 KW. Photoelectric switches A2, A3 and AN of the parking control equipment are PNP type remote reflective photoelectric switch sensor finished products of model E3F-DS30C 4/and are provided with two power

supply input ends

1 and 2 pins and a high level output end 3 pin, infrared beams emitted by a straight line of AN emitting head of a front end detecting head are blocked by AN article when the parking control equipment works, a receiving head at the front end of the detecting head receives the infrared beams, then the high level output end 3 pin outputs high level, and the high level is not output when no article is blocked; the farthest detection distance of the photoelectric switch is 400cm, after a vehicle is parked in a parking space, the lower end of the photoelectric switch can shield infrared beams emitted by a photoelectric switch detection head (the connection relation and the working principle of a plurality of photoelectric switches and relays of the parking control equipment and an LED display screen (the model is p10, and no parking space characters can be displayed in the parking space after the vehicle is electrified) are completely consistent, and the connection relation and the working principle of three photoelectric switches and relays and the LED display screen are used as representative descriptions in the embodiment). The exit control circuit comprises relays K1, K2, K3 and time control switches A6 and A8 which are connected through circuit board wiring, wherein the time control switches are provided with two sets, the positive control power input end of a first relay K1 is connected with the 1 pin of the positive power input end of a first set of time control switch A6, the 1 pin of the positive power input end of a second set of time control switch A8, the positive control power input end of a second relay K2 and the positive control power input end of a third relay K3, the normally open end of the first relay K1 is connected with the 3 pins of the positive trigger signal input end of the first set of time control switch A6, the normally closed contact end of the first relay K1 is connected with the 3 pins of the positive trigger signal input end of the second set of time control switch A8, the 2 pins and the negative trigger power input end of the first set of the time control switch A6 and the second set of the time control switch A8 are connected with the 4 pins of the negative trigger signal input end of the second relay K2 and the negative power input end of the third relay K3, The negative control power supply input ends are connected, and a first set of time control switch A6 positive power supply output end pin 9, a second set of time control switch A8 positive power supply output end pin 9, a second relay K2 and a third relay K3 positive power supply input end are respectively connected. The door-entering control circuit comprises relays K4, K5, K6 and time control switches A10 and A11 which are connected through circuit board wiring, wherein the time control switches are provided with two sets, the positive control power input end of a first relay K4 is connected with the 1 pin of the positive power input end of a first set of time control switch A10, the 1 pin of the positive power input end of a second set of time control switch A11, the positive control power input end of a second relay K5 and the positive control power input end of a third relay K6, the normally open end of the first relay K4 is connected with the 3 pins of the positive trigger signal input end of the first set of time control switch A10, the normally closed contact end of the first relay K4 is connected with the 3 pins of the positive trigger signal input end of the second set of time control switch A11, the 2 pins and the negative trigger power input end of the first set of the time control switch A10 and the second set of the time control switch A11 are connected with the 4 pins of the negative trigger signal input end of the second relay K5 and the negative power input end of the third relay K6, The negative control power supply input ends are connected, and a first set of time control switch A10 positive power supply output end pin 9, a second set of time control switch A11 positive power supply output end pin 9, a second relay K5 and a third relay K6 positive power supply input end are respectively connected. In the exit control circuit, two

ends

1 and 2 of the power input of the infrared detection switch A5 and two

ends

1 and 2 of the power input of the first set of time control switch A6 are respectively connected through leads, and two

ends

3 and 2 of the power output of the infrared detection switch A5 and two ends of the power input of the first relay K1 are respectively connected through leads. In the door-entering control circuit, two

pins

1 and 2 of the power input of the infrared detection switch A9 and two

pins

1 and 2 of the power input of the first set of time control switch A10 are respectively connected through leads, and two

pins

3 and 2 of the power output of the infrared detection switch A10 and two ends of the power input of the first relay K4 are respectively connected through leads.

As shown in fig. 1 and 2, the exit control circuit is further provided with a first delay sub-circuit, the first delay sub-circuit includes a time controller module finished product a12 of type YYC-2S and a relay K7, a power output end 9 pin of the time controller a12 is connected with a positive power input end of the relay K7, a negative power input end 2 pin of the time controller a12 is connected with a negative trigger power input end 4 pin, and a negative power input end of the relay K7 is connected, a positive trigger power end 3 pin of the time controller a12 is connected with a first set of power output end 9 pins of the time switch a6 of the exit control circuit, and a control contact end and a normally closed contact end of the relay K7 are connected in series between a normally closed contact end of the relay K of the parking control device and a positive power input end of the entrance control circuit through a wire. The gate control circuit is also matched with a second delay sub-circuit, the second delay sub-circuit comprises a time controller module finished product A13 of a type YYC-2S and a relay K8, a power output end 9 pin of the time controller A13 is connected with a positive power input end of the relay K8, a negative power input end 2 pin of the time controller A13 is connected with a negative trigger power input end 4 pin, a negative power input end of the relay K8 is connected, a positive trigger power end 3 pin of the time controller A13 is connected with a first set of power output end 9 pins of a time switch A10 of the gate control circuit, and a control contact end and a normally closed contact end of the relay K8 are connected in series between a positive power output end 3 pin of a stabilized power supply A1 and a positive power input end pin of the gate control circuit through leads of the time control switch A6.

As shown in fig. 1 and 2, a first button power switch S (one end of the power switch S is connected with one normally open contact end of a relay K2, and the other end of the power switch S is connected with the positive power input end of the motor reducing mechanism M) is connected in series with the positive power input end of the lifting lever equipment motor reducing mechanism M of the door control device body, a second button power switch S1 (one end of the power switch S1 is connected with one normally open contact end of the relay K3, and the other end of the power switch S1 is connected with the negative power input end of the motor reducing mechanism M) is connected in series between the negative power input ends of the lifting lever equipment motor reducing mechanism M of the door control device body, a first power switch S (8) and a second power switch S1(9) are respectively installed on the upper part of the left end and the lower part of the right end of the shell on one side of the motor speed reducing mechanism of the lifting rod equipment of the access control device body through screw nuts; when the lifting rod of the lifting rod equipment is upwards opened and is in a vertical state, the upper left end of the lifting rod can contact the S button of the first power switch, the S internal contact of the first power switch is opened, and when the lifting rod of the lifting rod equipment is downwards closed and is in a vertical state, the lower left end of the lifting rod can contact the S1 button of the second power switch, and the S1 internal contact of the second power switch is opened. The time control switches A6, A8, A10 and A11 are time controller module finished products of type YYC-2S, the working voltage of the time controller module finished products is direct current 24V, the time controller module finished products are provided with a digital LED tube with four-digit time display, two power

supply input ends

1 and 2, two trigger

signal input ends

3 and 4, a setting key 5, an emergency stop key 6, a time adding key 7, a time reducing key 8 and a normally open power supply output end 9, after the positive and negative pole power supply input ends of the time controller module finished products are electrified, an operator presses the setting key, the normally open power supply output end outputs positive power supply through the digital display of the digital tube, the time adding key and the time reducing key are respectively operated, the normally open power supply output end can be set to output positive power supply after the set time period is over, the normally open power supply output end stops outputting power supply, the maximum setting time is 9999 minutes, after the time controller module finished product sets the time, as long as the next setting is not carried out, the setting data in the time controller module finished product can not change after the power failure, and after the time is set, and every time the triggering power supply signal is input into the two triggering signal input ends, the time relay module finished product carries out the set time timing.

As shown in fig. 1 and 2, between a plurality of photoelectric switches and a relay of the parking control device, the positive power input end of the first photoelectric switch a2 is connected with the positive control power input end of the relay K, between every two photoelectric switches, the positive power output end 3 pin of the first photoelectric switch a2 is connected with the positive power input end 1 pin of the adjacent photoelectric switch A3, the positive power output end 3 pin of the photoelectric switch A3 is connected with the positive power input end 1 pin of the third photoelectric switch (the photoelectric switches are connected by analogy), the positive power output end 3 pin of the last photoelectric switch AN is connected with the positive power input end of the relay K, and the photoelectric switches a2, the negative power supply input ends of A3 and AN are connected with the negative power supply input ends of the relay K and the LED display screen, and the normally open contact end of the relay K is connected with the positive power supply input end of the LED display screen.

Power input ends

1 and 2 of a stabilized voltage power supply A1 and two poles of an alternating current 220V alternating current power supply are respectively connected through leads,

power output ends

3 and 4 of a stabilized voltage power supply A1, a control power input end and a negative power input end of a power input end relay K1 of a parking control device and 1 and 2 pins of a time control switch A6 at a power input end of a door-out control circuit are respectively connected through leads, a normally closed contact end and a negative power input end of a power output end relay K of the parking control device and 1 and 2 pins of a time control switch A10 at a power input end of a door-in control circuit are respectively connected through leads; and the two normally open contact ends of the power output end relay K5 and K6 of the door entrance control circuit, the two normally open contact ends of the power output end relay K2 and K3 of the door exit control circuit and the positive power input end and the negative power input end of the lifting rod motor speed reducing mechanism M of the door control device body are connected through leads respectively.

As shown in fig. 1 and 2, the parking system is based on the internet of things, does not need human management, and can be installed and used in any parking area. After the 220V alternating current power supply enters

pins

1 and 2 of the stabilized voltage supply A1, the stabilized voltage supply A1 outputs stable 24V direct current power supply to the power supply input end of the parking control device and the door control circuit under the action of the internal circuit of the stabilized voltage supply A1, and then the parking control device and the door control circuit are in an electrified working state. In the exit control circuit, when a vehicle runs outwards from a parking lot, the infrared light emitted by a detection head of an infrared detection switch A5 can be blocked when the vehicle reaches a lifting rod device, then, 3 pins of the infrared detection switch A5 output high level to enter a positive power input end of a relay K1, the relay K1 is electrified to attract a control power input end and a normally open contact end of the relay to be closed, the control power input end and the normally closed contact end are opened, further, a 24V power positive electrode enters the 3 pins of a time control switch A6 through the control power input end and the normally open contact end of the relay K1, 9 pins of the time control switch A6 output 7 seconds of high level to enter a positive power input end of the relay K2 after a trigger signal is input, and then the relay K2 is electrified to attract two control power input ends and two normally open contact ends of the relay K2 to be respectively closed. Because two normally open contact ends of the relay K2 are respectively connected with the positive and negative pole power supply input ends of the motor reducing mechanism M of the lifting rod equipment through leads, the motor reducing mechanism M can work by an electric operator to drive the lifting rod to be opened upwards and leftwards, and thus, the vehicle can normally run out of a parking lot. In practical situations, when the rising and falling rod 10 rises to a certain height, the upper left end of the rising and falling rod will prop against the button of the button switch S, and then the internal contact of the button switch S is opened; because the positive power input end of the motor reducing mechanism M is connected with the button type power switch S in series, the motor reducing mechanism M can lose power and does not work any more at the moment, and the phenomenon that the whole equipment cannot work normally because the motor reducing mechanism M drives the lifting rod to rotate all the time is prevented. After the vehicle is driven out of the parking lot (the time of 7 seconds is enough for the vehicle to be driven out of the parking lot), because the detection head of the infrared detection switch A5 does not block 3 feet of the vehicle any more and does not output high level to enter the 3 feet of the time control switch A6 any more, then the power supply is not output any more after the 9 feet of the time control switch A6 are 7 seconds, the relay K2 is de-energized and does not attract any more, and the preparation is made for the next vehicle to be driven out of the parking lot to open the lifting rod. After the relay K1 loses power and the control power supply input end and the normally closed contact end of the relay K1 are closed, the positive pole of a 24V power supply enters the 3 pins of the time control switch A8 through the relay K1 control power supply input end and the normally closed contact end, the 9 pins of the time control switch A8 can output 7-second high level after a trigger signal is input into the 3 pins of the time control switch A8 and enter the positive power supply input end of the relay K3, and then the relay K3 is electrified to attract the two control power supply input ends and the two normally open contact ends of the relay K3 to be closed respectively. Because two normally open contact ends of the relay K3 are electrically connected with the power input ends of the negative pole and the positive pole of the motor reducing mechanism M of the lifting rod equipment respectively, the motor reducing mechanism M can work to drive the lifting rod 10 to be closed downwards and rightwards, and therefore the lifting rod of the lifting rod equipment can be closed to prevent external vehicles from driving into a parking lot. In practical situations, when the lifting rod is lowered to a certain height, the right lower end of the lifting rod presses the button of the button switch S1, and the internal contact of the button switch S1 is opened; because the second button type power switch S1 is connected in series between the negative pole power input ends of the motor reducing mechanism M, the motor reducing mechanism M can lose power and does not work any more at the moment, and the phenomenon that the whole equipment cannot work normally because the motor reducing mechanism M drives the lifting rod to rotate all the time is prevented.

As shown in fig. 1 and 2, in the door entry control circuit, when a vehicle travels from outside to inside of a parking lot, the vehicle blocks infrared light emitted by a probe of an infrared detection switch a9 before reaching a landing rod device, so that A3-pin output high level of the infrared detection switch a9 enters an anode power input end of a relay K4, the relay K4 is powered to close a control power input end and a normally open contact end thereof, the control power input end and the normally closed contact end are opened, further, a 24V power anode enters A3-pin of a time control switch a10 through the control power input end and the normally open contact end of the relay K4, a 9-pin of the time control switch a10 outputs a 7-second high level to enter an anode power input end of the relay K5 after a trigger signal is input, and then the relay K5 is powered to close two control power input ends and two normally open contact ends thereof respectively. Because two normally open contact ends of the relay K5 are respectively connected with the positive and negative pole power input ends of the motor reducing mechanism M of the lifting rod equipment through leads, the motor reducing mechanism M can be electrically operated to drive the lifting rod to be opened upwards leftwards, and thus, a vehicle can normally drive into a parking lot. In practical situations, when the rising and falling rod 10 rises to a certain height, the upper left end of the rising and falling rod will prop against the button of the button switch S, and then the internal contact of the button switch S is opened; because the first button type power switch S is connected in series with the positive pole power input end of the motor reducing mechanism M, the motor reducing mechanism M can lose power and does not work any more at the moment, and the motor reducing mechanism M is prevented from driving the lifting rod to rotate all the time to cause that the whole equipment cannot work normally. After the vehicle enters the parking lot (the time of 7 seconds is enough for the vehicle to enter the outside of the parking lot), because the detection head of the infrared detection switch A9 does not block 3 pins of the vehicle and does not output high level to enter the 3 pins of the time control switch A10 any more, the power supply is not output any more after the time control switch A10 is 9 pins and 7 seconds later, the relay K5 is powered off and does not attract any more, and the device is ready for opening the lifting rod when the next vehicle enters the parking lot. After the relay K4 loses power and the control power supply input end and the normally closed contact end of the relay K4 are closed, the positive pole of a 24V power supply enters the 3 pins of the time control switch A11 through the relay K4 control power supply input end and the normally closed contact end, the 9 pins of the time control switch A11 can output 7-second high level after a trigger signal is input into the 3 pins of the time control switch A11 and enter the positive power supply input end of the relay K6, and then the relay K6 is electrified to attract the two control power supply input ends and the two normally open contact ends of the relay K6 to be closed respectively. Because two normally open contact ends of the relay K6 are respectively connected with the negative and positive pole power input ends of the motor reducing mechanism M of the lifting rod mechanism through leads, the motor reducing mechanism M can work to drive the lifting rod 10 to be closed downwards and rightwards, and thus the lifting rod of the lifting rod device can be closed to prevent external vehicles from entering a parking lot. In practical situations, when the lifting rod is lowered to a certain height, the right lower end of the lifting rod presses the button of the button switch S1, and the internal contact of the button switch S1 is opened; because the second button type power switch S1 is connected in series between the negative pole power input ends of the motor reducing mechanism M, the motor reducing mechanism M can lose power and does not work any more at the moment, and the phenomenon that the whole equipment cannot work normally because the motor reducing mechanism M drives the lifting rod to rotate all the time is prevented.

As shown in fig. 1 and 2, in the parking control apparatus, when a vehicle is parked in each parking space in the parking lot, the vehicle blocks infrared light beams emitted by all the photoelectric switches a2, A3 and AN detector heads, so that 3 pins of the first photoelectric switch a2 output high levels to enter the positive power input end of the adjacent second photoelectric switch A3, and the second photoelectric switch A3 further obtains electric power to work and 3 pins output high levels to enter the positive power input end of the third photoelectric switch, so that since one photoelectric switch at the rear end of each two adjacent photoelectric switches is input with high levels by one photoelectric switch at the front end, all the photoelectric switches can be electrically operated. After the last photoelectric switch AN is electrified to work, 3 pins of the last photoelectric switch AN can output high level to enter the positive power supply input end of the relay K, so that the relay K is electrified to close the control power supply input end and the normally open contact end, and open the control power supply input end and the normally closed contact end. Because the normally open contact end of the relay K is connected with the positive power supply input end of the LED display screen, and the normally closed contact end is connected with the positive power supply input end of the door entering control circuit; therefore, after the parking space in the parking lot is full, the LED display screen can be used for an electrician to send out a clear text prompt, and the outside vehicle with the full parking space can not drive into the parking lot any more. After the relay K is electrified and closed, the input end of the control power supply and the normally closed contact end are opened, the door entering prompt circuit also loses power and does not work any more, so that the lifting rod of the lifting rod equipment is not opened any more, an external vehicle cannot enter a parking lot any more, and convenience is brought to a driver and the parking lot management is facilitated. Under the actual conditions, as long as a parking stall does not have the vehicle in the parking lot, because 3 feet of this parking stall photoelectric switch no longer output the high level, a photoelectric switch of adjacent rear end also can not be the work of getting electric, that is to say the series connection that many photoelectric switches constitute is the power supply state in proper order will break off, relay K can lose the electricity and no longer attract its control power input end and normally open contact end open a way, control power input end and normally closed contact end are closed, so the LED display screen will lose the electricity and no longer show, the suggestion circuit that enters the door also can the work of getting electric, outside vehicle can drive into the parking lot again like this, until all parking stalls have the vehicle to berth again, 3 feet of all photoelectric switches output the high level and enter the door control circuit and just can lose the electricity once more. The intelligent management system fully achieves intelligent management, and brings convenience to both a vehicle driver and a manager. The infrared detection switch of the door-entering control circuit and the door-closing prompting circuit is a PNP type remote reflection photoelectric switch sensor finished product with the model number of E3F-DS30C 4/and is provided with two

power input ends

1 and 2 pins and a high-level output end 3 pin, when the photoelectric switch works, an infrared light beam emitted linearly by an emitting head of a front-end detecting head is blocked by an article, a receiving head at the front end of the detecting head receives the high-level output end 3 pins and outputs high level, and when the article is not blocked, the high level is not output; the farthest detection distance of the photoelectric switch is 500 cm.

In the invention, as shown in fig. 1 and 2, in an actual situation, when a vehicle runs outwards from a parking lot, a high level output by a pin 9 of a time control switch a6 enters a pin 3 of a time control switch a12, so that the time control switch a12 is triggered to output a high level for 10 seconds to enter an anode power input end of a relay K7, the relay K7 is electrified to attract a control power input end of the relay K7 to be open with a normally closed contact end, and because the normally closed contact end of the relay K7 is connected with the anode power input end of a door entering control circuit, the door entering control circuit cannot be electrified to work within 10 seconds; therefore, the 3 feet of the vehicle passing through the door-entering infrared detection switch A9 when the vehicle leaves the door are prevented from outputting high level, and the relay K5 is electrified to attract the output power supply to influence the whole control. When the vehicle runs from the outside to the inside of a parking lot, the high level output by the pin 9 of the time control switch A10 enters the pin 3 of the time control switch A13, so that the time control switch A13 is triggered to output the high level of 10 seconds to enter the positive power input end of the relay K8, the relay K8 is electrified to attract the control power input end and the normally closed contact end of the relay to be open, and as the normally closed contact end of the relay K8 is connected with the positive power input end of the exit control circuit, the exit control circuit cannot be electrified to work within 10 seconds; therefore, the influence of 3 feet output high level of the vehicle passing through the infrared detection switch A5 before the vehicle enters the door and the relay K2 is electrified to attract the output power supply to the whole control is prevented. Relays K, K1, K2, K3, K4, K5, K6, K7, K8 are DC24V relays.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An internet of things parking system comprises an entrance guard device body and a stabilized voltage power supply, wherein the entrance guard device body is arranged at an intersection of a parking area and is characterized by also comprising parking control equipment, an entrance control circuit and an exit control circuit; the parking control equipment comprises a plurality of photoelectric switches, a relay and an LED display screen, wherein an opening is vertically distributed on the road surface of each parking space in the parking area, the photoelectric switches are respectively and vertically arranged in the openings, and the LED display screen is arranged at the inlet side end of the parking area; the parking control equipment comprises a parking control device, a plurality of photoelectric switches and a relay, wherein the positive power supply input end of a first photoelectric switch is electrically connected with the positive control power supply input end of the relay; the entrance control circuit and the exit control circuit are consistent in structure and respectively comprise an infrared detection switch and a time control circuit, the infrared detection switch of the entrance control circuit is transversely arranged at the front part of one side end of the entrance guard device body, and the infrared detection switch of the exit control circuit is transversely arranged at the rear part of one side end of the exit of the entrance guard device body; the time control circuit, the stabilized voltage power supply and the relay of the parking control equipment are arranged in the element box; the power supply output end of the stabilized voltage power supply is electrically connected with the power supply input ends of the parking control equipment and the door-out control circuit respectively, and the power supply output end of the parking control equipment is electrically connected with the power supply input end of the door-in control circuit; the power supply output ends of the door entry control circuit and the door exit control circuit are electrically connected with the positive power supply input end and the negative power supply input end of the lifting rod motor speed reducing mechanism of the door control device body respectively; the door entrance control circuit and the door exit control circuit respectively comprise relays and time control switches which are electrically connected, the door entrance control circuit and the door exit control circuit are respectively provided with two sets of time control switches, in the door entrance control circuit and the door exit control circuit, a first relay positive control power input end is connected with a first set of time control switch positive power input end, a second relay positive control power input end and a third relay positive control power input end, a first relay normally open output end is connected with a first set of time control switch positive trigger signal input end, a first relay normally closed contact end is connected with a second set of time control switch positive trigger signal input end, a first set of time control switch and a second set of time control switch negative power input end and a negative trigger power input end are connected with a second relay and a third relay negative power input end, the first set of time control switch and the second set of time control switch are connected with a second relay and a third relay negative power input end, The power supply output ends of the infrared detection switch and the power supply input ends of the first set of time control switch are respectively electrically connected, and the power supply output ends of the infrared detection switch and the power supply input ends of the first relay are respectively electrically connected; the system comprises a parking control device, a door-out control circuit, a door-in control circuit and a door-out control circuit, wherein the door-out control circuit is also matched with a first delay sub-circuit, the first delay sub-circuit comprises a time controller module and a relay, the power output end of the time controller is connected with the positive power input end of the relay, the negative power input end of the time controller is connected with the negative trigger power input end and the negative power input end of the relay, the positive trigger power end of the time controller is connected with the first set of time control switch power output end of the door-out control circuit, and the relay control contact end and the normally closed contact end are electrically connected in series between the relay normally closed contact end of the parking control device and the positive power input end of the door-in control circuit; the door-entering control circuit is also matched with a second time-delay sub-circuit, the second time-delay sub-circuit comprises a time controller module and a relay, the power output end of the time controller is connected with the positive power input end of the relay, the negative power input end of the time controller is connected with the negative trigger power input end and the negative power input end of the relay, the positive trigger power end of the time controller is connected with the first set of time-controlled switch power output end of the door-entering control circuit, and the relay control contact end and the normally closed contact end are electrically connected in series between the positive power output end of the voltage-stabilized power supply and the positive power input end of the door-exiting control circuit.

2. The internet of things parking system of claim 1, wherein the regulated power supply is an ac to dc switching power supply module.

3. The internet of things parking system of claim 1, wherein the photoelectric switch of the parking control device is a reflective photoelectric switch sensor.

4. The internet of things parking system according to claim 1, wherein two button power switches are connected in series to a positive power input end and a negative power input end of a lifting rod device motor reducing mechanism of the access control device body, and the first power switch and the second power switch are respectively installed on the upper portion of the left end and the lower portion of the right end of a shell on one side of the lifting rod motor reducing mechanism of the access control device body.