CN116343403A

CN116343403A - A public key intelligent access cabinet

Info

Publication number: CN116343403A
Application number: CN202310267574.4A
Authority: CN
Inventors: 于源; 何天柏
Original assignee: Beijing University of Chemical Technology
Current assignee: Beijing University of Chemical Technology
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2023-06-27

Abstract

The invention relates to an intelligent public key access cabinet, which is characterized in that: the system consists of a main control, a display, a drawer bin, a drawer and a remote data monitoring system. The main control includes main control chip, electromagnetic lock, relay, pressure sensor, battery. The display includes a display screen, a matrix keyboard. The remote data monitoring system comprises a wireless signal transceiver, a webpage end Ali cloud Internet of things platform and a WeChat applet. The drawer bin comprises an upper bin and a lower bin, wherein the upper bin consists of an upper bin main body and an upper bin top plate; the lower bin is internally provided with a limiting block, a sliding rail, a lock tongue and a shockproof gasket. The drawer comprises a lock groove, a sliding rail, a limiting block, a key base, a key top seat, a key groove and a supporting column. The public key intelligent access cabinet transmits the key state to the Alicloud Internet of things platform through the wireless signal transceiver. And meanwhile, after the state of the key is obtained through the WeChat applet, data is remotely transmitted to the Internet of things platform of the Arian cloud, and the wireless signal transceiver receives the password to change the password of the public key intelligent access cabinet.

Description

Public key intelligent storage cabinet

Technical Field

The invention relates to the field of public key intelligent management, in particular to an intelligent public key access cabinet.

Background

In the prior art, the general key access cabinet mainly takes manual management as a main part, has low automation and intelligent degree, can not meet the requirements of user electronic reservation and return, has low manual management efficiency, poor flexibility and high management cost, and can not adapt to modern office management processes. In addition, in the manual management process, the public keys of enterprises and school meeting rooms are easy to lose under the condition of borrowing by multiple persons. And when some cipher cabinets are used as key access cabinets, the safety of keys is difficult to ensure due to the fixed cipher.

Disclosure of Invention

The invention solves the defects of the prior art, and provides a public key intelligent access cabinet, which is used for detecting the key state through a pressure sensor and a wireless signal transceiver and sending the key state to an Arian cloud internet of things platform, wherein the Arian cloud internet of things platform performs data flow and then sends the data flow to a WeChat applet, so that the key state is displayed on a WeChat applet interface in real time, and meanwhile, the wireless signal transceiver receives password information sent by the applet through the Arian cloud internet of things platform to complete updating of a matrix keyboard password. The technical scheme of the invention is as follows:

the invention discloses an intelligent access cabinet for public keys, which is characterized in that: the system consists of a main control, a display, a drawer bin, a drawer and a remote data monitoring system. The main control includes main control chip, electromagnetic lock, relay, pressure sensor. The display includes a display screen, a matrix keyboard. The remote data monitoring system comprises a wireless signal transceiver, a webpage end Ali cloud Internet of things platform and a WeChat applet. The drawer bin comprises an upper bin and a lower bin, wherein the upper bin consists of an upper bin main body and an upper bin top plate; the lower bin is internally provided with a limiting block A, a sliding rail, a lock tongue and a shockproof gasket. The drawer is composed of a lock groove, a key groove, a sliding rail, a limiting block B, a tension spring, a key top seat, a key base and the like. The invention relates to a public key intelligent access cabinet, wherein a fixed base is arranged at the bottom of an upper bin main body and is used for fixing a wireless signal transceiver, a main control chip, a relay and a battery. The upper bin top plate is provided with a signal receiving hole, a matrix keyboard wiring hole and a display wiring hole, a limiting block A and a sliding rail are arranged on the side part of the lower bin, the limiting block A is connected with the tail end of a tension spring, and the tail part of the lower bin is fixed with a shockproof gasket.

The invention discloses a public key intelligent storage cabinet, wherein a lock groove is formed in the tail part of a drawer, a sliding rail and a limiting block B are arranged on the side part of the drawer, and the limiting block B is connected with the head end of a tension spring.

The key base in the drawer of the intelligent public key storage cabinet is fixed at the bottom of the drawer, four support columns are arranged on the key base, and internal threads are tapped on the support columns. Four threaded holes are formed in the periphery of the key top seat, the key top seat is fixed on the support column through screws, and a key groove is formed in the key top seat.

The pressure sensor in the main control module of the intelligent access cabinet for the public key is fixed on the key base and faces to the key groove of the key top seat. The display screen is fixed on the display wire hole, and the display screen circuit is connected with the main control chip through the display wire hole, and the matrix keyboard is fixed on the matrix keyboard wire hole, and the matrix keyboard circuit is connected with the main control chip through the matrix keyboard wire hole.

The public key intelligent access cabinet provided by the invention uses the wireless signal transceiver (a WiFi module of ESP-12F) to enable the public key intelligent access cabinet to be connected with an Arian Internet of things platform.

The public key intelligent access cabinet is connected with the ali cloud internet of things platform through a wifi module, and transmits a key state to the ali cloud internet of things platform. The WeChat applet is connected with the Internet of things platform, can acquire the state of the key, can remotely send data, and changes the password of the public key intelligent access cabinet.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a public key intelligent access cabinet

FIG. 2 is a schematic diagram of the top plate of the drawer compartment of the intelligent public key access cabinet

FIG. 3 is a schematic diagram of the main structure of the upper drawer of the intelligent public key access cabinet

FIG. 4 is a schematic diagram of a drawer of a public key intelligent access cabinet

In the figure:

1-display screen 2-matrix keyboard 3-screw 4-limiting block A5-sliding rail 6-drawer bin upper bin 7-lock tongue 8-shockproof gasket 9-drawer bin lower bin 10-threaded hole 11-display screen wiring hole 12-matrix keyboard wiring hole 13-signal receiving hole 14-threaded hole 15-electromagnetic lock 16-battery 17-main control chip 18-through hole 19-relay 20-wireless signal transceiver 21-fixed base 22-locking groove 23-key slot 24-key top seat 25-supporting column 26-screw 27-pressure sensor 28-base 29-tension spring 30-limiting block B31-sliding rail

Detailed Description

The public key intelligent access cabinet consists of a display screen, a matrix keyboard, an upper drawer bin, a lower drawer bin and a drawer. The lower bin 9 of the drawer bin is internally provided with a limiting block A, a sliding rail, a lock tongue and a shockproof gasket. The drawer bin upper bin 6 consists of an upper bin top plate (a second drawing) and an upper bin main body (a third drawing). The upper bin top plate is connected to the upper bin main body through the top plate threaded holes 10 and the drawer bin threaded holes 14 by screws 3, and the display screen 1 and the matrix keyboard 2 are fixed on the display screen wiring holes 11 and the matrix keyboard wiring holes 12 of the upper bin top plate. The relay 19, the wireless signal transceiver 20, the battery 16 and the main control chip 17 are fixed in the fixed base 21, the electromagnetic lock 15 is fixed on the lock hole, and the lock tongue 7 passes through the lock hole and is propped against the lock groove 22. The limiting block A4 is connected with the tail end of the tension spring 29, and the limiting block B30 is connected with the head end of the tension spring 29. The key top seat 24 is fixed on the supporting column 25 through a screw 26, and the pressure sensor 27 is fixed between the key top seat and the key base and faces the key slot 23. The drawer bin and the drawer are connected through a sliding rail 5. The public key intelligent access cabinet can be fixed on a desktop through the through hole 18.

When a user borrows a key, the user clicks on the WeChat applet to acquire the password, the WeChat applet sends the password to the wireless signal transceiver 20 through the Ali cloud Internet of things platform to form a four-bit password, and the main control chip 17 updates the password to the received four-bit password. When a user inputs a password on the matrix keyboard 2, the main control chip 17 checks the password, and then opens the relay 19 if the password is correct, so that the battery 16 supplies power to the electromagnetic lock 15, the electromagnetic lock is opened, and the time delay is 5 seconds. The user can pull the handle, and the drawer is opened, and the extension springs on stopper A4 and stopper B30 are elongated. When a user removes a key from the key slot 23, the pressure sensor 27 fixed on the key base 28 opposite to the key slot 23 feeds back to the main control chip 17, and the main control chip 17 sends a feedback signal of the pressure sensor to the WeChat applet through the wireless signal transceiver 20 by the Internet of things platform of the America. When a user loosens the handle, tension springs on the limiting block A4 and the limiting block B30 can rebound automatically, the drawer is pulled to collide with the lock tongue 7, the lock tongue 7 is clamped in the lock groove 22 after rebounding, the tail of the drawer collides with the shockproof gasket 8 to be buffered, and automatic door closing is completed. When the user returns the key, the same password is input and borrowed, and the flow is unchanged. When borrowing, the key leaves the key groove, and pressure sensor passes through the detection feedback signal of pressure and is empty, and pressure sensor feedback signal is non-empty when returning, shows in real time at the applet interface.

The foregoing description of the preferred embodiments of the present invention is provided for the purpose of the appended claims. Variations or modifications which do not depart from the spirit or scope of the invention will become apparent to those skilled in the art from the invention.

Claims

1. An intelligent access cabinet for public keys is characterized in that: the system consists of a main control, a display, a drawer bin, a drawer and a remote data monitoring system. The main control comprises a main control chip, an electromagnetic lock, a relay, a pressure sensor and a battery. The display includes a display screen, a matrix keyboard. The remote data monitoring system comprises a wireless signal transceiver, a webpage end Ali cloud Internet of things platform and a WeChat applet. The WeChat applet is connected with the web-side Ali cloud Internet of things platform, and the wireless signal transceiver is connected with the web-side Ali cloud Internet of things platform. The drawer bin comprises an upper bin and a lower bin, wherein the upper bin consists of an upper bin main body and an upper bin top plate; the lower bin is internally provided with a limiting block A, a sliding rail, a lock tongue and a shockproof gasket. The bottom of the upper bin main body is provided with a fixed base. The wireless signal transceiver, the main control chip, the battery and the relay are fixed on the fixed base. The drawer contains the locked groove, slide rail, stopper, extension spring, key base, key footstock, key groove, support column.

2. The intelligent public key storage and retrieval cabinet according to claim 1, wherein a lock hole is formed in the rear portion of the bottom of the upper bin main body, the upper bin top plate is connected to the upper bin main body through screws, and a signal receiving hole is formed in the left side of the upper bin top plate. The middle part of the upper bin top plate is provided with a matrix keyboard wiring hole and a display screen wiring hole, the side part of the lower bin is provided with a sliding rail and a limiting block A, and the limiting block A is provided with a tension spring tail end. The tail part of the lower bin is provided with a shockproof gasket.

3. The intelligent access cabinet for public keys according to claim 1, wherein the key base is fixed at the bottom of the drawer, four supporting columns are arranged on the key base, and the supporting columns are provided with internal threads. The locking groove is positioned at the tail part of the drawer, the side part of the drawer is provided with the sliding rail and the limiting block B, and the limiting block B is connected with the head end of the tension spring.

4. The intelligent public key storage cabinet according to claim 1, wherein four threaded holes are formed around the key top seat, the key top seat is fixed on the supporting column through screws, and the key top seat is provided with a key groove.

5. The intelligent access cabinet for public keys according to claim 1, wherein the pressure sensor is fixed on the top of the key base and faces the key slot of the key top base. The display screen is fixed on the display wiring hole, and the matrix keyboard is fixed on the matrix keyboard wiring hole.

6. The public key intelligent access cabinet according to claim 1, wherein the wireless signal transceiver is connected with the alicloud internet of things platform by using a WIFI module of ESP-12F.

7. The public key intelligent access cabinet according to claim 1, wherein the public key intelligent access cabinet is connected with the alicloud internet of things platform through the WIFI module and transmits a key state to the alicloud internet of things platform. The WeChat applet is connected with the Ali cloud Internet of things platform, can acquire the state of a key, can remotely send password data to the Ali cloud Internet of things platform, and the WIFI module receives the password data forwarded by the Ali cloud Internet of things platform and then transmits the password data to the main control chip, and the main control chip can change the password of the public key intelligent access cabinet.