CN215416766U - Intelligent ground lock based on LoRa communication and system thereof - Google Patents
Intelligent ground lock based on LoRa communication and system thereof Download PDFInfo
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- CN215416766U CN215416766U CN202120938468.0U CN202120938468U CN215416766U CN 215416766 U CN215416766 U CN 215416766U CN 202120938468 U CN202120938468 U CN 202120938468U CN 215416766 U CN215416766 U CN 215416766U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model provides an intelligent ground lock based on LoRa communication and a system thereof, wherein the intelligent ground lock comprises a power input module, a ground lock control panel and a ground lock body, the ground lock control panel comprises a central processing unit, a power conversion circuit, a vehicle lock control unit, a vehicle detection unit, a LoRa wireless communication module, an RS485 communication circuit, an alarm module, a motor current detection circuit and a battery voltage detection circuit, a wireless ad hoc network is established among a plurality of intelligent ground locks through the LoRa wireless communication module, the intelligent ground locks are communicated with a ground lock gateway through the LoRa wireless communication module, the vehicle detection unit is connected to the central processing unit and used for sending vehicle detection signals to the central processing unit, and the central processing unit is connected with the vehicle lock control unit and used for sending vehicle lock control signals to the vehicle lock control unit according to the vehicle detection signals. The utility model can achieve the purposes of low power consumption, low cost, high control efficiency, high response real-time, high management and maintenance efficiency, high product deployment flexibility and the like.
Description
Technical Field
The utility model relates to the technical field of parking spot locks, in particular to an intelligent ground lock based on LoRa communication.
Background
The traditional ground lock is provided with a remote controller, and when a car is stopped in a parking space, the remote controller is manually pressed to lower the ground lock. After the vehicle leaves, the remote controller is manually pressed to lift the ground lock. The lock is a simple lock operated manually, can only perform one-way communication, namely, the lock is controlled by a remote controller, and the state information of the lock cannot be reported. Such locks require a dedicated person to manage, while intelligent locks differ. When the automobile is about to stop in the parking space, the user can actively operate the lock descending on the APP, or the lock descending is actively performed for the user after the license plate recognition system recognizes the designated license plate. The ground lock actively raises the lock arm when the vehicle is detected to leave. The intelligent lock is integrated on a complete set of control system, does not need special management, and can report lock state information, so that management and maintenance become simpler. Therefore, intelligent locks have been used very widely in public parking lots such as electric vehicle charging stations, parking lots of enterprises and institutions, shopping malls of various sizes, and the like.
The existing intelligent locks basically adopt a wireless network communication module (such as NB-IoT, 4G, Wifi, etc.) or a wired network (such as ethernet, RS485, CAN, etc.) communication form to realize direct or indirect interaction with a management and control platform.
For example, in the form of wired network communication, a single ground lock has a low cost, but communication and coordination of various personnel are required to facilitate construction and wiring on the site and provide an external power supply, which is difficult to implement. And moreover, a third party is required to access after the layout is finished. For example, ground lock in the charging station is not direct and management and control platform butt joint, but dock with charging pile earlier, docks with the management and control platform by charging pile again. This requires that, first, the hardware device of the third party must have the ability to communicate with the ground lock, otherwise, the hardware device must be modified accordingly. Secondly, to make entire system can use, ground lock with fill between the electric pile, fill electric pile and the management and control platform between all will carry out the butt joint of communication protocol. This undoubtedly increases the difficulty of implementation.
For example, the wireless network communication module is simpler in construction, wiring and butt joint than the wired network communication module. The system does not need a third party for butt joint generally, and can be powered by an external power supply or a battery, so that the difficulty of project implementation is reduced. But because of its high power consumption, it is not suitable to use the battery power supply, greatly limits its flexibility. For example, if a battery is used to supply power and a endurance of 3 months or more is desired, the battery capacity may be several tens of times higher than that of a common ground lock, which makes the battery very expensive.
Therefore, the wireless network communication module still requires construction, wiring and external power supply on site, but the wiring is relatively simple and only needs to provide a power line. In addition, because the wireless network communication module is expensive, each intelligent ground lock must be equipped, and if there are many ground locks in a station, the cost is high. Finally, the wireless network communication module is greatly influenced by the base station, and the situations of narrow signal coverage range, large signal delay (such as NB-IoT), poor real-time response and complex wireless network deployment exist.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide the intelligent lock based on the LoRa communication, which has the advantages of low power consumption, low cost, high control efficiency, high response real-time performance, high management and maintenance efficiency and high product deployment flexibility.
Another objective of the present invention is to provide an intelligent LoRa communication-based lock system with low power consumption, low cost, high control efficiency, high response real-time performance, high management and maintenance efficiency, and high product deployment flexibility.
In order to achieve the main purpose, the intelligent ground lock based on LoRa communication provided by the utility model comprises a power input module, a ground lock control panel and a ground lock body, wherein the power input module provides power for the ground lock control panel, and the ground lock control panel is mechanically connected with the ground lock body; the ground lock control panel includes central processing unit, power conversion circuit, lock the control unit, vehicle detecting element, loRa wireless communication module, RS485 communication circuit, alarm module, motor current detection circuit, battery voltage detection circuit, and is a plurality of pass through between the intelligence ground lock wireless communication module establishes wireless ad hoc network, and is a plurality of adopt between intelligence ground lock and the ground lock gateway loRa wireless communication module communicates, vehicle detecting element is connected to central processing unit is used for to central processing unit sends vehicle detection signal, central processing unit with the lock the control unit is connected, is used for according to vehicle detection signal to the lock the control unit sends lock control signal, in order to control ground lock body is unblanked or is closed to lock, central processing unit respectively with power conversion circuit, The RS485 communication circuit, the alarm module, the motor current detection circuit and the battery voltage detection circuit are connected.
In a further scheme, the vehicle lock control unit comprises a motor driving circuit and a limiting detection circuit, the motor driving circuit is provided with a driving motor for driving the locking arm, the motor driving circuit is used for driving the driving motor to rotate positively and negatively, and then the ground lock body is controlled to be unlocked, the limiting detection circuit is provided with a vehicle lock limiting switch, and the limiting detection circuit limits the ground lock body to be opened and closed through the vehicle lock limiting switch.
In a further scheme, the vehicle detecting element includes magnetic field detection module, ultrasonic sensor, the magnetic field detection module disposes ground magnetic sensor, through ground magnetic sensor detects earth magnetism variation signal, obtains the information that the vehicle exists, ultrasonic sensor disposes ultrasonic transmitter and ultrasonic receiver, ultrasonic transmitter and ultrasonic receiver install respectively in ground lock body upper surface.
In a further scheme, the alarm module comprises an indicator light circuit and a buzzer circuit, and the indicator light circuit and the buzzer circuit are respectively connected to the central processing unit.
In a further scheme, the central processing unit comprises a central processing unit, a dial switch circuit, an expansion interface circuit, a debugging serial port circuit, an SWD circuit and a crystal oscillator circuit, and the central processing unit is respectively connected with the dial switch circuit, the expansion interface circuit, the debugging serial port circuit, the SWD circuit and the crystal oscillator circuit.
In a further scheme, a driving chip of the motor driving circuit is an L298N direct current motor driving chip.
Therefore, the intelligent ground lock provided by the utility model has complete hardware functions and strong expansibility, can be powered by a battery or an external power supply, and supports a series of functions of vehicle detection, vehicle off-site automatic lock lifting, battery power detection, lock arm position detection, lock in-place detection, obstacle detection, locked rotor detection, lock arm abnormal motion judgment, lock arm state uploading, address setting, obstacle sensitivity setting, automatic lock lifting setting and automatic dormancy setting, internal geomagnetic, ultrasonic, limit switch fault judgment and the like.
In addition, the long-distance, low-power consumption, low-cost and low-delay LoRa module is adopted for communication, so that the intelligent lock has lower power consumption and lower cost; the response is more sensitive, and the control efficiency is higher; the installation is simpler, the deployment is more nimble.
In order to achieve the other purpose, the intelligent ground lock system based on LoRa communication provided by the utility model comprises the intelligent ground lock, a cloud management platform, ground lock gateways and user terminals, wherein a plurality of ground lock terminals establish a wireless ad hoc network through built-in LoRa wireless communication modules, communicate with one ground lock gateway through the LoRa wireless communication module through corresponding wireless nodes, and perform information interaction between the plurality of ground lock gateways and the cloud management platform through an internet of things communication module.
Therefore, the utility model provides an intelligent ground lock system based on LoRa communication, the control system mainly comprises a ground lock gateway and ground lock terminals, each ground lock terminal is not equipped with network communication equipment such as 4G, NB-IoT and Wifi, and only one set of the equipment is required to be configured to the ground lock gateway. Each ground lock is not communicated with the management platform independently any more, but the ground lock gateway is used for managing the subordinate ground locks in a unified way, and then the ground locks are interacted with the management platform, so that centralized management is realized, the project implementation difficulty is reduced, the cost is greatly reduced, and the management and maintenance efficiency is improved.
Drawings
Fig. 1 is a schematic diagram of an embodiment of an intelligent lock based on LoRa communication according to the present invention.
Fig. 2 is a schematic circuit diagram of a magnetic field detection module in an intelligent lock embodiment based on LoRa communication according to the present invention.
Fig. 3 is a schematic circuit diagram of an ultrasonic sensor in an intelligent lock embodiment of the utility model based on LoRa communication.
Fig. 4 is a schematic circuit diagram of an LoRa wireless communication module in an intelligent lock embodiment based on LoRa communication according to the present invention.
Fig. 5 is a schematic diagram of an embodiment of an intelligent locking system based on LoRa communication according to the present invention.
The utility model is further explained with reference to the drawings and the embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without any inventive step, are within the scope of protection of the utility model.
An intelligent lock embodiment based on LoRa communication:
referring to fig. 1, the intelligent ground lock based on LoRa communication of the present invention includes a power input module 10, a ground lock control panel 30 and a ground lock body 20, wherein the power input module 10 provides power to the ground lock control panel 30, and the ground lock control panel 30 is mechanically connected to the ground lock body 20.
In this embodiment, the ground lock control board 30 includes a central processing unit, a power conversion circuit 31, a lock control unit, a vehicle detection unit, a LoRa wireless communication module 32, an RS485 communication circuit 33, an alarm module, a motor current detection circuit 34, and a battery voltage detection circuit 35, a wireless ad hoc network is established between the plurality of intelligent ground locks through the LoRa wireless communication module 32, the plurality of intelligent ground locks communicate with the ground lock gateway through the LoRa wireless communication module 32, the vehicle detection unit is connected to the central processing unit for sending a vehicle detection signal to the central processing unit, the central processing unit is connected to the lock control unit for sending a lock control signal to the lock control unit according to the vehicle detection signal to control the ground lock body 20 to unlock or lock, and the central processing unit is respectively connected to the power conversion circuit 31, the RS485 communication circuit 33, the alarm module 33, and the central processing unit, The motor current detection circuit 34 and the battery voltage detection circuit 35 are connected.
In this embodiment, the vehicle lock control unit includes a motor driving circuit 36 and a limit detection circuit 37, the motor driving circuit 36 is configured with a driving motor for driving the lock arm, the motor driving circuit 36 is configured for driving the driving motor to rotate forward and backward to control unlocking of the ground lock body 20, the limit detection circuit 37 is configured with a vehicle lock limit switch, and the limit detection circuit 37 limits the opening and closing of the ground lock body 20 through the vehicle lock limit switch.
In the present embodiment, as shown in fig. 2 and 4, the vehicle detection unit includes a magnetic field detection module 38 and an ultrasonic sensor 39(P4), the magnetic field detection module 38 is configured with a geomagnetic sensor U5, and detects a geomagnetic variation signal through a geomagnetic sensor U5 to obtain information on whether a vehicle exists, the ultrasonic sensor 39 is configured with an ultrasonic transmitter and an ultrasonic receiver, and the ultrasonic transmitter and the ultrasonic receiver are respectively mounted on the upper surface of the ground lock body. It can be seen that, through the complementary working mode of combining the geomagnetic sensor and the ultrasonic sensor 39, if the presence or absence of a vehicle is detected at the same time, the detection signal is transmitted to the central processing unit, the central processing unit controls the operation of the motor, the descending or ascending (unlocking or locking) of the locking arm is realized, the judgment accuracy can be improved, and meanwhile, the better supervision of the vehicle is realized.
In this embodiment, the alarm module includes an indicator light circuit 41 and a buzzer circuit 42, and the indicator light circuit 41 and the buzzer circuit 42 are respectively connected to the central processing unit. Therefore, the alarm module is used for controlling the driving motor to reversely rotate and sending out acousto-optic alarm after receiving the alarm information.
In this embodiment, the central processing unit includes a central processor 51, a dial switch circuit 52, an expansion interface circuit 53, a debugging serial port circuit 54, an SWD circuit 55 and a crystal oscillator circuit 56, and the central processor 51 is connected to the dial switch circuit 52, the expansion interface circuit 53, the debugging serial port circuit 54, the SWD circuit 55 and the crystal oscillator circuit 56, respectively.
Preferably, the driver chip of the motor driving circuit 36 is an L298N dc motor driver chip.
Preferably, the control chip of the LoRa wireless communication circuit is a LoRa SX1278 chip M1.
Specifically, the intelligent ground lock of the present embodiment is composed of a power input, a ground lock control panel 30 and a ground lock body 20. The ground lock control panel 30 is the core of an intelligent ground lock, the hardware function of the control panel is complete, and the ground lock control panel mainly comprises a power supply conversion circuit 31, a LoRa wireless communication circuit 32, an RS485 communication circuit 33, an ultrasonic sensor 39, a magnetic field detection module 38, a motor drive circuit 36, a limit detection circuit 37, a motor current detection circuit 34, a battery voltage detection circuit 35, an indicator lamp circuit 41, a buzzer circuit 42, a dial switch circuit 52, an expansion interface circuit 53, a debugging serial port circuit 54, an SWD circuit 55 and a crystal oscillator circuit 56.
Furthermore, as the long-distance, low-power consumption, low-cost and low-delay LoRa module is adopted for communication, the battery endurance is greatly improved while the bidirectional communication is supported. For example, under a certain control strategy, a 7200mAh battery is used for supplying power, the standby endurance of the common intelligent ground lock is basically about 1 month, the endurance of the intelligent ground lock can reach more than 300 days, the endurance is greatly improved, the product deployment can be very flexible, the installation is simpler, the communication coordination cost is greatly reduced, and the project implementation difficulty is reduced.
Furthermore, because the long-distance, low-power consumption, low-cost and low-delay LoRa module is adopted for communication, although each lock needs to be provided with the communication module, compared with a wireless network communication module (such as NB-IoT, 4G, Wifi and the like), the LoRa module is much lower in price, and therefore the cost of a single ground lock is greatly reduced.
Furthermore, as the long-distance, low-power consumption, low-cost and low-delay LoRa module is adopted for communication, the communication distance is long, and all ground locks under the station can be managed only by arranging one gateway in the same station.
Furthermore, as the long-distance, low-power consumption, low-cost and low-delay LoRa module is adopted for communication, the signal delay is small (ms level), the response real-time performance is good, the control efficiency is high, and the user experience is improved.
Therefore, the intelligent ground lock provided by the utility model has complete hardware functions and strong expansibility, can be powered by a battery or an external power supply, and supports a series of functions of vehicle detection, vehicle off-site automatic lock lifting, battery power detection, lock arm position detection, lock in-place detection, obstacle detection, locked rotor detection, lock arm abnormal motion judgment, lock arm state uploading, address setting, obstacle sensitivity setting, automatic lock lifting setting and automatic dormancy setting, internal geomagnetic, ultrasonic, limit switch fault judgment and the like.
In addition, the long-distance, low-power consumption, low-cost and low-delay LoRa module is adopted for communication, so that the intelligent lock has lower power consumption and lower cost; the response is more sensitive, and the control efficiency is higher; the installation is simpler, the deployment is more nimble.
An intelligent lock system embodiment based on loRa communication:
referring to fig. 5, the intelligent ground lock system based on LoRa communication provided by the utility model comprises the intelligent ground lock 2, a cloud management platform 3, ground lock gateways 4 and a user terminal 1, wherein a plurality of ground lock terminals establish a wireless ad hoc network through built-in LoRa wireless communication modules 32, communicate with one ground lock gateway 4 through the LoRa wireless communication module 32 through corresponding wireless nodes, and perform information interaction between the plurality of ground lock gateways 4 and the cloud management platform 3 through internet of things communication modules.
When in actual use, lay a ground lock gateway 4 and a plurality of intelligence ground lock 2 in the field station, a ground lock gateway 4 can manage a plurality of intelligence ground locks 2 under the affiliation, adopt the loRa module to communicate between intelligence ground lock 2 and the ground lock gateway 4, and ground lock gateway 4 collects each place and locks state information and receives the command of high in the clouds management platform 3 to the realization is to the control of ground lock. The ground lock gateway 4 realizes interaction with a cloud platform by using networks such as wired Ethernet or wireless 4G, the lock control action is sent by the user terminal 1, and the user terminal 1 can be an APP terminal, a webpage terminal or a license plate recognition system.
Therefore, the utility model provides an intelligent ground lock system based on LoRa communication, the control system mainly comprises a ground lock gateway 4 and ground lock terminals, each ground lock terminal is not equipped with network communication equipment such as 4G, NB-IoT and Wifi, and only one set of the equipment needs to be configured to the ground lock gateway 4. Each ground lock is not communicated with the management platform independently any more, but the ground lock gateway 4 is used for managing the subordinate ground locks in a unified way, and then the information interaction is carried out with the management platform, so that the centralized management is realized, the project implementation difficulty is reduced, the cost is greatly reduced, and the management and maintenance efficiency is improved.
It should be noted that the above is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made to the present invention by using the design concept also fall within the protection scope of the present invention.
Claims (7)
1. An intelligent lock based on LoRa communication, comprising:
the ground lock comprises a power input module, a ground lock control panel and a ground lock body, wherein the power input module provides power for the ground lock control panel, and the ground lock control panel is mechanically connected with the ground lock body;
the ground lock control panel includes central processing unit, power conversion circuit, lock the control unit, vehicle detecting element, loRa wireless communication module, RS485 communication circuit, alarm module, motor current detection circuit, battery voltage detection circuit, and is a plurality of pass through between the intelligence ground lock wireless communication module establishes wireless ad hoc network, and is a plurality of adopt between intelligence ground lock and the ground lock gateway loRa wireless communication module communicates, vehicle detecting element is connected to central processing unit is used for to central processing unit sends vehicle detection signal, central processing unit with the lock the control unit is connected, is used for according to vehicle detection signal to the lock the control unit sends lock control signal, in order to control ground lock body is unblanked or is closed to lock, central processing unit respectively with power conversion circuit, The RS485 communication circuit, the alarm module, the motor current detection circuit and the battery voltage detection circuit are connected.
2. The LoRa communication based intelligent lock of claim 1, wherein:
the car lock control unit comprises a motor driving circuit and a limiting detection circuit, the motor driving circuit is provided with a driving motor for driving a locking arm, the motor driving circuit is used for driving the driving motor to rotate positively and negatively, and then the ground lock body is controlled to be unlocked, the limiting detection circuit is provided with a car lock limiting switch, and the limiting detection circuit limits the opening and closing of the ground lock body through the car lock limiting switch.
3. The LoRa communication based intelligent lock of claim 1, wherein:
vehicle detecting element includes magnetic field detection module, ultrasonic sensor, magnetic field detection module disposes geomagnetic sensor, through geomagnetic sensor detects earth magnetism change signal, obtains the information that the vehicle exists, ultrasonic sensor disposes ultrasonic emitter and ultrasonic receiver, ultrasonic emitter and ultrasonic receiver install respectively in ground lock body upper surface.
4. The LoRa communication based intelligent lock of claim 1, wherein:
the alarm module comprises an indicator light circuit and a buzzer circuit, and the indicator light circuit and the buzzer circuit are respectively connected to the central processing unit.
5. The LoRa communication based intelligent lock of any of claims 1 to 4, wherein:
the central processing unit comprises a central processing unit, a dial switch circuit, an expansion interface circuit, a debugging serial port circuit, an SWD circuit and a crystal oscillator circuit, and the central processing unit is respectively connected with the dial switch circuit, the expansion interface circuit, the debugging serial port circuit, the SWD circuit and the crystal oscillator circuit.
6. The LoRa communication based intelligent lock of claim 2, wherein:
the driving chip of the motor driving circuit is an L298N direct current motor driving chip.
7. An intelligent ground lock system based on LoRa communication, characterized by comprising the intelligent ground lock based on LoRa communication, a cloud management platform, a ground lock gateway and a user terminal according to any one of claims 1 to 6, wherein the ground lock terminal establishes a wireless ad hoc network through a built-in LoRa wireless communication module, and communicates with one ground lock gateway through the LoRa wireless communication module through a corresponding wireless node, and the ground lock gateway and the cloud management platform are subjected to information interaction through an internet of things communication module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120938468.0U CN215416766U (en) | 2021-04-30 | 2021-04-30 | Intelligent ground lock based on LoRa communication and system thereof |
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| CN202120938468.0U CN215416766U (en) | 2021-04-30 | 2021-04-30 | Intelligent ground lock based on LoRa communication and system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396188A (en) * | 2022-02-22 | 2022-04-26 | 国网安徽电动汽车服务有限公司 | Method for preventing parking spot lock from being lifted by mistake due to abnormal ultrasonic probe |
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2021
- 2021-04-30 CN CN202120938468.0U patent/CN215416766U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396188A (en) * | 2022-02-22 | 2022-04-26 | 国网安徽电动汽车服务有限公司 | Method for preventing parking spot lock from being lifted by mistake due to abnormal ultrasonic probe |
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