Non-contact emergency unlocking system, method and device for anti-theft well cover

Abstract

The application discloses a kind of non-contact emergency unlocking systems, methods and devices of anti-theft well lid.The system includes: emergency processing module, emergency key and unlocking terminal;Emergency key is used to when turning on preset frequency alternating current, alternating magnetic field is generated based on alternating current;Emergency processing module is used to when inductive alternating magnetic field, alternating voltage is generated, and broadcast package including anti-theft well lid basic information is sent to surrounding environment;Unlocking terminal is used to establish wireless connection with the emergency processing module, and after successfully establishing authorized connection, unlocking signal is sent to the emergency processing module;The emergency processing module is also used to after successfully establishing authorized connection with the unlocking terminal, according to the unlocking signal sent by the unlocking terminal, execute unlocking operation to the anti-theft lock.The technical scheme of the application can realize the non-contact emergency unlocking of anti-theft well lid, and improve the functional stability and anti-theft safety of anti-theft well lid.

Description

Technical Field

[0001] This invention relates to the field of public equipment protection, and in particular to a non-contact emergency unlocking system, method and device for anti-theft manhole covers. Background Technology

[0002] The core functions of existing anti-theft manhole covers used in public facilities are threefold: 1. Smart manhole covers lock the manhole with electronic locks; 2. Alarms are sent to the platform when the manhole is forcibly opened; 3. The manhole can only be opened after the user connects to the device via a mobile phone and is authorized.

[0003] However, due to the harsh underground environment, the main control unit of the anti-theft manhole cover may not function properly in certain special circumstances, such as when the battery of the manhole cover is depleted. In such cases, an independent emergency unlocking system is required to ensure that the lock can be opened normally.

[0004] There are generally two methods on the market to solve the above problems: 1. The method uses a special purely mechanical key that can unlock directly without electronic authorization. This means that the structure of the anti-theft manhole cover must have a "backdoor". Once a person with ulterior motives figurees out the structure, all anti-theft manhole covers of the same specifications can be opened by this "master key", resulting in poor anti-theft security. 2. The method uses an electronic authorization mode, which can be an external power supply mode or an internal independent power supply mode. However, both of these modes have serious problems: a) External power supply mode: Generally, two power contacts are left on the outside of the control box, and an external battery is provided to power the emergency circuit. Then, a mobile phone communicates with the emergency circuit via wired / wireless means to authorize the control box to unlock. However, after a period of time in the harsh underground environment, all power and communication contacts will be oxidized, the contacts are easily damaged, and problems such as water seepage are likely to occur, making it impossible to work properly; b) Built-in independent battery mode: The control box has a dedicated emergency battery for emergency circuit use, which not only increases the cost, but the battery also has a lifespan. After a while, it will fail and lose the proper emergency unlocking function, resulting in poor functional stability of the anti-theft manhole cover. Summary of the Invention

[0005] This invention provides a non-contact emergency unlocking system, method, and device for anti-theft manhole covers, which can solve the problem of poor functional stability and anti-theft security of existing anti-theft manhole covers.

[0006] In a first aspect, embodiments of the present invention provide a non-contact emergency unlocking system for anti-theft manhole covers, the system comprising:

[0007] An emergency handling module, an emergency key, and an unlocking terminal; wherein, the emergency handling module is located inside the anti-theft manhole cover body and is connected to the anti-theft lock in the anti-theft manhole cover body;

[0008] The emergency key is used to generate an alternating magnetic field based on the AC power when the AC power of the preset frequency is connected.

[0009] The emergency response module is used to generate an alternating voltage based on the alternating magnetic field when it senses the alternating magnetic field, and to send a broadcast packet containing basic information about the anti-theft manhole cover to the surrounding environment when powered by the alternating voltage.

[0010] The unlocking terminal is used to attempt to establish a wireless connection with the emergency processing module based on the received broadcast packet, and to send an unlocking signal to the emergency processing module after successfully establishing an authorized connection.

[0011] The emergency handling module is also used to perform an unlocking operation on the anti-theft lock according to the unlocking signal sent by the unlocking terminal after successfully establishing an authorized connection with the unlocking terminal.

[0012] Secondly, embodiments of the present invention provide a non-contact emergency unlocking method for anti-theft manhole covers, executed by an emergency circuit in a non-contact emergency unlocking system for anti-theft manhole covers, the method comprising:

[0013] Under the AC voltage power supply, a broadcast packet containing basic information about the anti-theft manhole cover is transmitted to the surrounding environment via a Bluetooth antenna; wherein, the broadcast packet is used by the unlocking terminal to identify and attempt to establish a communication connection with the emergency circuit;

[0014] Upon receiving a Bluetooth connection establishment request from the unlocking terminal, the system attempts to establish a Bluetooth communication connection with the unlocking terminal based on the Bluetooth handshake protocol.

[0015] After successfully establishing a Bluetooth connection with the unlocking terminal, the system performs authorization and authentication with the unlocking terminal. Upon successful authentication, the system drives the motor to perform the unlocking operation on the anti-theft lock based on the unlocking signal sent by the unlocking terminal.

[0016] Thirdly, embodiments of the present invention provide a non-contact emergency unlocking method for anti-theft manhole covers, executed by an unlocking terminal in a non-contact emergency unlocking system for anti-theft manhole covers, the method comprising:

[0017] Turn on Bluetooth and scan for Bluetooth broadcast channels in the surrounding environment;

[0018] The system identifies received Bluetooth broadcast messages and attempts to establish a Bluetooth communication connection with the emergency circuit that sent the broadcast message when it identifies a broadcast packet containing basic information about the anti-theft manhole cover.

[0019] After successfully establishing a Bluetooth connection with the emergency circuit, the system performs authorization and authentication with the emergency circuit, and sends an unlock signal to the emergency circuit upon successful authentication.

[0020] Fourthly, embodiments of the present invention provide a non-contact emergency unlocking device for anti-theft manhole covers, the device comprising:

[0021] The broadcast packet transmitting module is used to transmit a broadcast packet containing basic information about the anti-theft manhole cover to the surrounding environment via a Bluetooth antenna under the power supply of the AC voltage; wherein, the broadcast packet is used by the unlocking terminal to identify and attempt to establish a communication connection with the emergency circuit;

[0022] The communication establishment module is used to attempt to establish a Bluetooth communication connection with the unlocking terminal based on the Bluetooth handshake protocol when it receives a Bluetooth connection establishment request sent by the unlocking terminal.

[0023] The authorization and authentication module is used to perform authorization and authentication with the unlocking terminal after successfully establishing a Bluetooth connection with the unlocking terminal, and after successful authentication, drive the motor to perform the unlocking operation of the anti-theft lock according to the unlocking signal sent by the unlocking terminal.

[0024] Fifthly, embodiments of the present invention provide a non-contact emergency unlocking device for anti-theft manhole covers, the device comprising:

[0025] The channel scanning module is used to turn on the Bluetooth switch and scan for Bluetooth broadcast channels in the surrounding environment;

[0026] The information identification module is used to identify the received Bluetooth broadcast information, and when it identifies a broadcast packet containing basic information about the anti-theft manhole cover, it attempts to establish a Bluetooth communication connection with the emergency circuit that sent the broadcast packet.

[0027] The unlocking signal sending module is used to perform authorization authentication with the emergency circuit after successfully establishing a Bluetooth connection with the emergency circuit, and to send an unlocking signal to the emergency circuit after successful authentication.

[0028] The technical solution of this invention involves an emergency key generating an alternating magnetic field when connected to AC power of a preset frequency. An emergency processing module, upon sensing this alternating magnetic field, generates an AC voltage and, powered by this voltage, broadcasts a packet containing basic information about the anti-theft manhole cover to the surrounding environment. An unlocking terminal attempts to establish a wireless connection with the emergency processing module based on the received broadcast packet. Upon successful authorization, the terminal sends an unlocking signal to the module. The emergency processing module, after successfully establishing an authorized connection with the unlocking terminal, performs an unlocking operation on the anti-theft lock based on the unlocking signal sent by the terminal. This solution addresses the problem of poor functional stability and anti-theft security of existing anti-theft manhole covers, enabling non-contact emergency unlocking and improving the functional stability and anti-theft security of the covers.

[0029] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a structural schematic diagram of a non-contact emergency unlocking system for anti-theft manhole covers according to Embodiment 1 of the present invention.

[0032] Figure 2 This is a flowchart of a non-contact emergency unlocking method for an anti-theft manhole cover according to Embodiment 2 of the present invention;

[0033] Figure 3 This is a flowchart of a non-contact emergency unlocking method for an anti-theft manhole cover according to Embodiment 3 of the present invention;

[0034] Figure 4 This is a structural schematic diagram of a non-contact emergency unlocking device for an anti-theft manhole cover provided in Embodiment 4 of the present invention;

[0035] Figure 5 This is a structural schematic diagram of a non-contact emergency unlocking device for an anti-theft manhole cover provided in Embodiment 5 of the present invention. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] Example 1

[0039] Figure 1 This is a structural schematic diagram of a non-contact emergency unlocking system for anti-theft manhole covers provided in Embodiment 1 of the present invention.

[0040] like Figure 1 As shown, the system includes: an emergency handling module 110, an emergency key 120, and an unlocking terminal 130; wherein, the emergency handling module 110 is located inside the anti-theft manhole cover body and is connected to the anti-theft lock in the anti-theft manhole cover body.

[0041] The emergency key 120 is used to generate an alternating magnetic field based on the AC power when the AC power of the preset frequency is connected.

[0042] Specifically, the emergency key 120 includes: a switching power supply module, a power conversion circuit, a transmitting coil, and a magnet, wherein the switching power supply module, the power conversion circuit, and the transmitting coil are connected in sequence; the magnet is positioned close to the transmitting coil; the switching power supply module is used to supply DC power from the battery to the power conversion circuit in response to switch control; the power conversion circuit is used to convert the input DC power into AC power of a set frequency and then input the AC power to the transmitting coil; the transmitting coil is used to generate an alternating magnetic field based on the alternating signal of the AC power in the magnetic field environment of the magnet.

[0043] In this embodiment, the switching power supply module is used to supply DC power from the battery to the power conversion circuit in response to switch control; further, the power conversion circuit is used to convert the input DC power into AC power of a set frequency and then input the AC power to the transmitting coil; further, the transmitting coil is used to generate an alternating magnetic field according to the alternating signal of the AC power in the magnetic field environment of the magnet. In a specific embodiment of this embodiment, the switching power supply module is used to control the switch of the power supply, convert the DC power from the battery into AC power, and then input the AC power into the power conversion circuit. The power conversion circuit converts the input AC power into AC power of a set frequency and then inputs the AC power into the transmitting coil; further, the transmitting coil generates an alternating magnetic field according to the alternating signal of the AC power in the magnetic field environment of the magnet.

[0044] The emergency response module 110 is used to generate an alternating voltage based on the alternating magnetic field when it senses the alternating magnetic field, and to send a broadcast packet containing basic information about the anti-theft manhole cover to the surrounding environment when powered by the alternating voltage.

[0045] The emergency handling module 110 specifically includes: a receiving coil, a Bluetooth antenna, an emergency circuit, and a motor; the emergency circuit is connected to the receiving coil, the Bluetooth antenna, and the motor, and the motor is used to connect to the anti-theft lock.

[0046] It is important to note that in this embodiment, when the emergency key 120 is inserted into the pre-set keyhole of the manhole cover body, based on Faraday's law of electromagnetic induction, the receiving coil in the emergency processing module 110 will cut the alternating magnetic field generated by the emergency key 120 to generate an alternating voltage. Furthermore, Faraday's law of electromagnetic induction specifically states that when a conductor moves in a magnetic field, an electromotive force (EMF) is generated inside the conductor. The magnitude of this EMF is directly proportional to the speed of the conductor in the magnetic field, directly proportional to the strength of the magnetic field, and inversely proportional to the length of the conductor. Correspondingly, in this embodiment, during the process of the user inserting the emergency key 120 into the receiving coil, the receiving coil moves in the alternating magnetic field to generate an EMF, i.e., an alternating voltage. Through the system described in this embodiment, it is not necessary to set any physical power source in the manhole cover body; only a battery module is needed in the emergency key 120, thus solving the problem of poor functional stability of anti-theft manhole covers due to battery instability in existing technologies.

[0047] The broadcast packet may include: the numbering information, location information, or attribute information of the manhole cover body; furthermore, based on the above steps, the receiving coil and the transmitting coil may be coils made of ordinary enameled coils wound into multiple loops as needed.

[0048] Furthermore, the receiving coil is used to generate an AC voltage based on the alternating magnetic field sensed in the surrounding environment when the alternating magnetic field is sensed, and to provide the AC voltage to the emergency circuit; the emergency circuit is used to transmit a broadcast packet including basic information about the anti-theft manhole cover to the surrounding environment via the Bluetooth antenna under the power supply of the AC voltage, and after successfully establishing a Bluetooth connection with the unlocking terminal 130 based on the broadcast packet, to perform authorization authentication with the unlocking terminal 130, and after successful authentication, to drive the motor to perform the unlocking operation of the anti-theft lock based on the unlocking signal sent by the unlocking terminal 130; the Bluetooth antenna is used to transmit the signal sent by the emergency circuit to the outside, and to transmit the received signal to the unlocking terminal 130 of the emergency circuit, to attempt to establish a wireless connection with the emergency processing module 110 based on the received broadcast packet, and to send an unlocking signal to the emergency processing module 110 after successfully establishing an authorized connection.

[0049] In one specific embodiment of this example, the emergency circuit is a circuit used to transmit a broadcast packet containing basic information about the anti-theft manhole cover to the surrounding environment via the Bluetooth antenna under AC voltage power supply. It can also, after successfully establishing a Bluetooth connection with the unlocking terminal 130 based on the broadcast packet, perform authorization authentication with the unlocking terminal 130, and, upon successful authentication, drive the motor to perform an unlocking operation on the anti-theft lock based on the unlocking signal sent by the unlocking terminal 130. Furthermore, the Bluetooth antenna is an antenna used to transmit signals sent by the emergency circuit outwards and to transmit received signals back to the emergency circuit. It can transmit the broadcast packet sent by the emergency circuit to the surrounding environment and receive signals from the unlocking terminal 130. Furthermore, the unlocking terminal 130 is a terminal used to attempt to establish a wireless connection with the emergency processing module 110 based on the received broadcast packet, and after successfully establishing an authorized connection, send an unlocking signal to the emergency processing module 110. It can receive broadcast packets from the emergency circuit and attempt to establish a wireless connection with the emergency processing module 110. If the connection is successful, it can send an unlocking signal to the emergency handling module 110, so that the emergency handling module 110 can drive the motor to perform the unlocking operation on the anti-theft lock.

[0050] The emergency handling module 110 is also used to perform an unlocking operation on the anti-theft lock according to the unlocking signal sent by the unlocking terminal 130 after successfully establishing an authorized connection with the unlocking terminal 130.

[0051] The unlocking operation can be performed by driving a motor connected to the anti-theft lock of the manhole cover body to perform an unlocking action on the anti-theft lock.

[0052] The technical solution of this invention involves an emergency key generating an alternating magnetic field when connected to AC power of a preset frequency. An emergency processing module, upon sensing this alternating magnetic field, generates an AC voltage and, powered by the AC voltage, broadcasts a packet containing basic information about the anti-theft manhole cover to the surrounding environment. An unlocking terminal attempts to establish a wireless connection with the emergency processing module based on the received broadcast packet. Upon successful authorization, the terminal sends an unlocking signal to the emergency processing module. The emergency processing module, after successfully establishing an authorized connection with the unlocking terminal, performs an unlocking operation on the anti-theft lock based on the unlocking signal sent by the unlocking terminal. This enables non-contact emergency unlocking of the anti-theft manhole cover, improving its functional stability and anti-theft security.

[0053] Example 2

[0054] Figure 2 This is a flowchart of a non-contact emergency unlocking method for anti-theft manhole covers provided in Embodiment 2 of the present invention. This embodiment is applicable to non-contact emergency unlocking of anti-theft manhole covers. The method can be executed by a non-contact emergency unlocking device for anti-theft manhole covers. The non-contact emergency unlocking device for anti-theft manhole covers can be implemented in hardware and / or software. The non-contact emergency unlocking device for anti-theft manhole covers can be configured in the emergency circuit of a non-contact emergency unlocking system for anti-theft manhole covers with non-contact emergency unlocking function.

[0055] like Figure 2 As shown, the method includes:

[0056] S210. Under the power supply of the AC voltage, a broadcast packet including basic information about the anti-theft manhole cover is sent to the surrounding environment via a Bluetooth antenna.

[0057] The broadcast packet is used by the unlocking terminal to identify and attempt to establish a communication connection with the emergency circuit.

[0058] S220. Upon receiving a Bluetooth connection establishment request from the unlocking terminal, attempt to establish a Bluetooth communication connection with the unlocking terminal based on the Bluetooth handshake protocol.

[0059] S230. After successfully establishing a Bluetooth connection with the unlocking terminal, perform authorization authentication with the unlocking terminal, and after successful authentication, drive the motor to perform the unlocking operation on the anti-theft lock according to the unlocking signal sent by the unlocking terminal.

[0060] The authorization and authentication of the unlocking terminal includes: after detecting the establishment of a Bluetooth connection with the unlocking terminal, generating an authentication request and sending it to the unlocking terminal via a Bluetooth antenna, so that the unlocking terminal generates an authentication result matching the authentication request; receiving the authentication result sent by the unlocking terminal, and generating a verification result based on a preset shared key and the authentication request; and determining whether the verification result is consistent with the authentication result.

[0061] Optionally, after authorizing and authenticating the unlocking terminal, the method further includes: disconnecting the Bluetooth communication connection with the unlocking terminal if authentication fails.

[0062] In one specific implementation of this embodiment, the emergency circuit first sends a Bluetooth broadcast after power-on to establish a Bluetooth authentication session, generates and saves a random number, and sends an authentication request containing an authentication identifier and the random number. Then, within 3 seconds of establishing the authentication session, it receives the authentication result from the emergency key; if this timeout occurs, the current connection and broadcast are automatically closed. Next, it receives the authentication result returned by the emergency key and simultaneously performs the same digest algorithm using its factory-saved pre-shared key and the authentication request content sent to the emergency key. Specifically, the digest algorithm calculates a verification result based on the authentication identifier, the random number, and the pre-shared key. Finally, it determines whether the verification result matches the authentication result. If the results differ, authentication fails, and the Bluetooth connection is automatically disconnected; if authentication succeeds, the Bluetooth broadcast continues, waiting to receive the unlocking command from the unlocking terminal.

[0063] The technical solution of this invention first transmits a broadcast packet containing basic information about the anti-theft manhole cover to the surrounding environment via a Bluetooth antenna under AC voltage power supply. Then, upon receiving a Bluetooth connection establishment request from the unlocking terminal, it attempts to establish a Bluetooth communication connection with the unlocking terminal based on the Bluetooth handshake protocol. Finally, after successfully establishing a Bluetooth connection with the unlocking terminal, it performs authorization authentication with the unlocking terminal. After successful authentication, it drives the motor to perform the unlocking operation on the anti-theft lock according to the unlocking signal sent by the unlocking terminal. This enables non-contact emergency unlocking of the anti-theft manhole cover, improving the functional stability and anti-theft security of the anti-theft manhole cover.

[0064] Example 3

[0065] Figure 3This is a flowchart of a non-contact emergency unlocking method for anti-theft manhole covers provided in Embodiment 3 of the present invention. This embodiment is applicable to non-contact emergency unlocking of anti-theft manhole covers. The method can be executed by a non-contact emergency unlocking device for anti-theft manhole covers. The non-contact emergency unlocking device for anti-theft manhole covers can be implemented in hardware and / or software. The non-contact emergency unlocking device for anti-theft manhole covers can be configured in the unlocking terminal of a non-contact emergency unlocking system for anti-theft manhole covers with non-contact emergency unlocking function.

[0066] like Figure 3 As shown, the method includes:

[0067] S310, turn on the Bluetooth switch and scan for Bluetooth broadcast channels in the surrounding environment.

[0068] S320: Upon receiving Bluetooth broadcast information, identify the broadcast packet and, upon identifying a broadcast packet containing basic information about the anti-theft manhole cover, attempt to establish a Bluetooth communication connection with the emergency circuit that sent the broadcast packet.

[0069] S330. After successfully establishing a Bluetooth connection with the emergency circuit, perform authorization authentication with the emergency circuit, and send an unlock signal to the emergency circuit after successful authentication.

[0070] In one specific implementation of this embodiment, the relevant personnel insert the emergency key into the emergency unlocking hole to complete the power-on operation. Then, the emergency circuit searches for the smart manhole cover emergency circuit's Bluetooth broadcast on a nearby Bluetooth channel and quickly establishes a Bluetooth authentication session, waiting for an authentication request. After receiving the authentication request from the smart manhole cover emergency circuit, the circuit parses the request. The authentication request includes a preset authentication identifier and a random number. The emergency circuit then calculates the authentication result using a pre-shared key, with the following algorithm: based on the authentication identifier, the random number, and the pre-shared key, a hash value is calculated and returned to the smart manhole cover emergency circuit as the authentication result. Finally, the current Bluetooth authentication session is closed.

[0071] The technical solution of this invention first turns on the Bluetooth switch, scans the Bluetooth broadcast channel in the surrounding environment, then identifies the received Bluetooth broadcast information, and when a broadcast packet containing basic information about the anti-theft manhole cover is identified, attempts to establish a Bluetooth communication connection with the emergency circuit that sent the broadcast packet. Finally, after successfully establishing a Bluetooth connection with the emergency circuit, authorization and authentication are performed with the emergency circuit, and an unlocking signal is sent to the emergency circuit after successful authentication. This enables non-contact emergency unlocking of the anti-theft manhole cover, improving the functional stability and anti-theft security of the anti-theft manhole cover.

[0072] Example 4

[0073] Figure 4This is a structural schematic diagram of a non-contact emergency unlocking device for an anti-theft manhole cover provided in Embodiment 4 of the present invention. Figure 4 As shown, the device includes:

[0074] The broadcast packet sending module 410 is used to send a broadcast packet containing basic information about the anti-theft manhole cover to the surrounding environment via a Bluetooth antenna under the power supply of the AC voltage; wherein, the broadcast packet is used by the unlocking terminal to identify and attempt to establish a communication connection with the emergency circuit;

[0075] The communication establishment module 420 is used to attempt to establish a Bluetooth communication connection with the unlocking terminal based on the Bluetooth handshake protocol when it receives a Bluetooth connection establishment request sent by the unlocking terminal.

[0076] The authorization and authentication module 430 is used to perform authorization and authentication with the unlocking terminal after successfully establishing a Bluetooth connection with the unlocking terminal, and after successful authentication, drive the motor to perform the unlocking operation of the anti-theft lock according to the unlocking signal sent by the unlocking terminal.

[0077] The technical solution of this invention first transmits a broadcast packet containing basic information about the anti-theft manhole cover to the surrounding environment via a Bluetooth antenna under AC voltage power supply. Then, upon receiving a Bluetooth connection establishment request from the unlocking terminal, it attempts to establish a Bluetooth communication connection with the unlocking terminal based on the Bluetooth handshake protocol. Finally, after successfully establishing a Bluetooth connection with the unlocking terminal, it performs authorization authentication with the unlocking terminal. After successful authentication, it drives the motor to perform the unlocking operation on the anti-theft lock according to the unlocking signal sent by the unlocking terminal. This enables non-contact emergency unlocking of the anti-theft manhole cover, improving the functional stability and anti-theft security of the anti-theft manhole cover.

[0078] Based on the above embodiments, the authorization and authentication module 430 includes:

[0079] An authentication request generation unit is used to generate an authentication request and send it to the unlocking terminal via a Bluetooth antenna after detecting that a Bluetooth connection has been established with the unlocking terminal, so that the unlocking terminal generates an authentication result that matches the authentication request based on the authentication request;

[0080] The verification result generation unit is used to receive the authentication result sent by the unlocking terminal and generate a verification result based on the preset shared key and the authentication request.

[0081] A consistency determination unit is used to determine whether the verification result and the authentication result are consistent.

[0082] Based on the above embodiments, the authorization and authentication module 430 is further configured to: disconnect the Bluetooth communication connection with the unlocking terminal after authorization and authentication of the unlocking terminal fails.

[0083] The non-contact emergency unlocking device for anti-theft manhole covers provided in this embodiment of the invention can execute the non-contact emergency unlocking method for anti-theft manhole covers provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0084] Example 5

[0085] Figure 5 This is a structural schematic diagram of a non-contact emergency unlocking device for an anti-theft manhole cover provided in Embodiment 5 of the present invention. Figure 5 As shown, the device includes:

[0086] The channel scanning module 510 is used to turn on the Bluetooth switch and scan for Bluetooth broadcast channels in the surrounding environment;

[0087] The information identification module 520 is used to identify the received Bluetooth broadcast information, and when it identifies a broadcast packet containing basic information about the anti-theft manhole cover, it attempts to establish a Bluetooth communication connection with the emergency circuit that sent the broadcast packet.

[0088] The unlocking signal sending module 530 is used to perform authorization authentication with the emergency circuit after successfully establishing a Bluetooth connection with the emergency circuit, and to send an unlocking signal to the emergency circuit after successful authentication.

[0089] The technical solution of this invention first turns on the Bluetooth switch, scans the Bluetooth broadcast channel in the surrounding environment, then identifies the received Bluetooth broadcast information, and when a broadcast packet containing basic information about the anti-theft manhole cover is identified, attempts to establish a Bluetooth communication connection with the emergency circuit that sent the broadcast packet. Finally, after successfully establishing a Bluetooth connection with the emergency circuit, authorization and authentication are performed with the emergency circuit, and an unlocking signal is sent to the emergency circuit after successful authentication. This enables non-contact emergency unlocking of the anti-theft manhole cover, improving the functional stability and anti-theft security of the anti-theft manhole cover.

[0090] Based on the above embodiments, the unlocking signal sending module 530 includes:

[0091] The authentication result acquisition unit is used to parse the authentication request after receiving the authentication request sent by the emergency circuit, and obtain the authentication result matching the authentication request based on the preset shared key and the parsed authentication request.

[0092] The authentication result sending unit is used to send the authentication result to the emergency module so that the emergency circuit generates a success signal based on the authentication result.

[0093] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

Claims

1. A non-contact emergency unlocking system for anti-theft manhole covers, characterized in that, include: An emergency handling module, an emergency key, and an unlocking terminal; wherein, the emergency handling module is located inside the anti-theft manhole cover body and is connected to the anti-theft lock in the anti-theft manhole cover body; The emergency key is used to generate an alternating magnetic field based on the AC power when the AC power of the preset frequency is connected. The emergency response module is used to generate an alternating voltage based on the alternating magnetic field when it senses the alternating magnetic field, and to send a broadcast packet containing basic information about the anti-theft manhole cover to the surrounding environment when powered by the alternating voltage. The unlocking terminal is used to attempt to establish a wireless connection with the emergency processing module based on the received broadcast packet, and to send an unlocking signal to the emergency processing module after successfully establishing an authorized connection. The emergency handling module is also used to perform an unlocking operation on the anti-theft lock according to the unlocking signal sent by the unlocking terminal after successfully establishing an authorized connection with the unlocking terminal. The emergency key specifically includes: a switching power supply module, a power conversion circuit, a transmitting coil, and a magnet, wherein the switching power supply module, the power conversion circuit, and the transmitting coil are connected in sequence; the magnet is positioned close to the transmitting coil; the switching power supply module is used to supply DC power from the battery to the power conversion circuit in response to switch control; the power conversion circuit is used to convert the input DC power into AC power of a set frequency and then input the AC power to the transmitting coil; the transmitting coil is used to generate a changing magnetic field according to the alternating signal of the AC power in the magnetic field environment of the magnet.

2. The system according to claim 1, characterized in that, The emergency handling module specifically includes: a receiving coil, a Bluetooth antenna, an emergency circuit, and a motor; the emergency circuit is connected to the receiving coil, the Bluetooth antenna, and the motor respectively, and the motor is used to connect to the anti-theft lock; The receiving coil is used to generate an alternating voltage based on the alternating magnetic field in the surrounding environment when it senses the alternating magnetic field, and to provide the alternating voltage to the emergency circuit. The emergency circuit is used to transmit a broadcast packet containing basic information about the anti-theft manhole cover to the surrounding environment via the Bluetooth antenna under the power supply of the AC voltage, and after successfully establishing a Bluetooth connection with the unlocking terminal based on the broadcast packet, to perform authorization authentication with the unlocking terminal, and after successful authentication, to drive the motor to perform the unlocking operation of the anti-theft lock based on the unlocking signal sent by the unlocking terminal. The Bluetooth antenna is used to transmit signals sent by the emergency circuit to the outside and to transmit received signals to the emergency circuit.

3. A non-contact emergency unlocking method for anti-theft manhole covers, executed by an emergency circuit in the non-contact emergency unlocking system for anti-theft manhole covers as described in claim 2, comprising: Under the AC voltage power supply, a broadcast packet containing basic information about the anti-theft manhole cover is transmitted to the surrounding environment via a Bluetooth antenna; wherein, the broadcast packet is used by the unlocking terminal to identify and attempt to establish a communication connection with the emergency circuit; Upon receiving a Bluetooth connection establishment request from the unlocking terminal, the system attempts to establish a Bluetooth communication connection with the unlocking terminal based on the Bluetooth handshake protocol. After successfully establishing a Bluetooth connection with the unlocking terminal, the system performs authorization and authentication with the unlocking terminal. Upon successful authentication, the system drives the motor to perform the unlocking operation on the anti-theft lock based on the unlocking signal sent by the unlocking terminal.

4. The method according to claim 3, characterized in that, Authorization and authentication with the unlocking terminal includes: After detecting that a Bluetooth connection has been established with the unlocking terminal, an authentication request is generated and sent to the unlocking terminal via the Bluetooth antenna, so that the unlocking terminal generates an authentication result that matches the authentication request based on the authentication request; Receive the authentication result sent by the unlocking terminal, and generate a verification result based on the preset shared key and the authentication request; Determine whether the verification result is consistent with the authentication result.

5. The method according to claim 3 or 4, characterized in that, After authorizing and authenticating the unlocking terminal, the process also includes: Disconnect the Bluetooth communication connection with the unlocking terminal after authentication fails.

6. A non-contact emergency unlocking method for anti-theft manhole covers, executed by an unlocking terminal in the non-contact emergency unlocking system for anti-theft manhole covers as described in claim 2, comprising: Turn on Bluetooth and scan for Bluetooth broadcast channels in the surrounding environment; The system identifies received Bluetooth broadcast messages and attempts to establish a Bluetooth communication connection with the emergency circuit that sent the broadcast message when it identifies a broadcast packet containing basic information about the anti-theft manhole cover. After successfully establishing a Bluetooth connection with the emergency circuit, the system performs authorization and authentication with the emergency circuit, and sends an unlock signal to the emergency circuit after successful authentication.

7. The method according to claim 6, characterized in that, Authorization and authentication with the emergency circuit includes: Upon receiving an authentication request sent by the emergency circuit, the authentication request is parsed, and an authentication result matching the authentication request is obtained based on the preset shared key and the parsed authentication request. The authentication result is sent to the emergency module so that the emergency circuit generates a success signal based on the authentication result.

8. A non-contact emergency unlocking device for an anti-theft manhole cover, executed by an emergency circuit in the non-contact emergency unlocking system for an anti-theft manhole cover as described in claim 2, comprising: The broadcast packet transmitting module is used to transmit a broadcast packet containing basic information about the anti-theft manhole cover to the surrounding environment via a Bluetooth antenna under the power supply of the AC voltage; wherein, the broadcast packet is used by the unlocking terminal to identify and attempt to establish a communication connection with the emergency circuit; The communication establishment module is used to attempt to establish a Bluetooth communication connection with the unlocking terminal based on the Bluetooth handshake protocol when it receives a Bluetooth connection establishment request sent by the unlocking terminal. The authorization and authentication module is used to perform authorization and authentication with the unlocking terminal after successfully establishing a Bluetooth connection with the unlocking terminal, and after successful authentication, drive the motor to perform the unlocking operation of the anti-theft lock according to the unlocking signal sent by the unlocking terminal.

9. A non-contact emergency unlocking device for anti-theft manhole covers, executed by an unlocking terminal in the non-contact emergency unlocking system for anti-theft manhole covers as described in claim 2, comprising: The channel scanning module is used to turn on the Bluetooth switch and scan for Bluetooth broadcast channels in the surrounding environment; The information identification module is used to identify the received Bluetooth broadcast information, and when it identifies a broadcast packet containing basic information about the anti-theft manhole cover, it attempts to establish a Bluetooth communication connection with the emergency circuit that sent the broadcast packet. The unlocking signal sending module is used to perform authorization authentication with the emergency circuit after successfully establishing a Bluetooth connection with the emergency circuit, and to send an unlocking signal to the emergency circuit after successful authentication.

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