A gantry crane safety certification circuit

Abstract

This utility model discloses a safety authentication circuit for a gantry crane. The circuit includes: an authentication unit, comprising a face and fingerprint authentication module F13; a main controller connected to the authentication unit and a power supply unit; and a remote control power supply module connected to the main controller, the gantry crane remote control interface, and the power supply unit. The power supply unit supplies power to the authentication unit, the main controller, and the remote control power supply module. The face and fingerprint authentication module F13 authenticates the user's identity. After successful authentication, the main controller sends a command to the power supply unit, causing the remote control power supply module to supply power to the gantry crane remote control, thereby enabling the remote control to operate the gantry crane for lifting operations. This ensures that the person using the remote control is an authorized personnel, improving the safety of gantry crane operation.

Description

Technical Field

[0001] This utility model belongs to the field of gantry crane technology, specifically relating to a safety authentication circuit for gantry cranes. Background Technology

[0002] Gantry cranes, also known as gantry cranes, are a type of bridge crane used for lifting and moving heavy objects. However, the construction sites where gantry cranes are used are complex, and relevant regulations require all operators to be certified. But if someone on the construction site has access to the operating equipment, i.e., the remote control, they can directly operate the gantry crane, posing a great safety hazard.

[0003] Therefore, how to improve the safety of gantry crane operation and reduce safety risks is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problem in the prior art that gantry cranes are easily operated by unauthorized personnel, resulting in high safety risks. Therefore, this utility model provides a gantry crane safety authentication circuit, the circuit comprising: The authentication unit includes the face and fingerprint authentication module F13; The main controller is connected to the authentication unit and the power supply unit; The remote control power supply module is connected to the main controller, the gantry crane remote control interface, and the power supply unit, respectively. The power supply unit is used to supply power to the authentication unit, the main controller, and the remote control power supply module.

[0005] Furthermore, the authentication unit specifically includes: One end of the face fingerprint authentication module F13 is connected to a 3V power supply through resistor R12, and the other end of the face fingerprint authentication module F13 is grounded through resistor R11. The other end of the face fingerprint authentication module F13 is also connected to the main controller.

[0006] Furthermore, the specific model of the main controller is STM32F103RCT6.

[0007] Furthermore, the remote control power supply module specifically includes: Port 1 of the gantry crane remote control interface J6 is grounded, port 2 of the gantry crane remote control interface J6 is connected to the drain of MOSFET Q1, the gate of MOSFET Q1 is connected to the main controller through resistor R7, and the source of MOSFET Q1 is connected to a 3V power supply.

[0008] Furthermore, the power supply unit specifically includes: Port 1 of lithium battery interface J2 is grounded. Port 2 of lithium battery interface J2 is connected to port 1 of power switch J1. Port 2 of power switch J1 is connected to the VIN port of step-down module U2. Port 2 of power switch J1 also outputs 12V power. The VIN port of step-down module U2 is also connected to one end of resistor R1. The other end of resistor R1 is connected to the main controller and resistor R3 respectively. The other end of resistor R3 is grounded. The VOUT port of step-down module U2 outputs 3V power. The GND port of step-down module U2 is grounded.

[0009] Furthermore, the power supply unit also includes a charging module, which specifically includes: Port 1 of the charging interface J4 is grounded, and port 2 of the charging interface J4 is connected to port 2 of the lithium battery interface J2 through diode D1.

[0010] Furthermore, one end of the resistor R1 is also connected to one end of capacitor C3, one end of capacitor C4, one end of capacitor C5, one end of capacitor C6, one end of capacitor C7 and one end of capacitor C8, respectively, and the other ends of capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7 and capacitor C8 are all grounded.

[0011] Furthermore, the circuit also includes a crystal oscillator module, which is connected to the main controller.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a safety authentication circuit for gantry cranes. Compared with existing technologies, this circuit includes: an authentication unit, comprising a face and fingerprint authentication module F13; a main controller, connected to the authentication unit and a power supply unit; and a remote control power supply module, connected to the main controller, the gantry crane remote control interface, and the power supply unit. The power supply unit supplies power to the authentication unit, the main controller, and the remote control power supply module. The face and fingerprint authentication module F13 authenticates the user's identity. After successful authentication, the main controller sends a command to the power supply unit, causing the remote control power supply module to supply power to the gantry crane remote control, thereby operating the gantry crane remote control to perform lifting operations. This ensures that the personnel using the remote control are authorized, improving the safety of gantry crane operation. Attached Figure Description

[0013] To more clearly illustrate the embodiments of this specification, the accompanying drawings used in the embodiments will be briefly introduced below. The drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 The diagram shown is a schematic representation of the overall structure of the gantry crane safety certification circuit provided in the embodiment of this specification. Figure 2 The diagram shown is a structural schematic of the authentication unit in an embodiment of this specification; Figure 3 The diagram shown is a structural schematic of the power supply unit in an embodiment of this specification; Figure 4 The diagram shown is a structural schematic of the charging module in an embodiment of this specification. Figure 5 The diagram shown is a structural schematic of the remote control power supply module in an embodiment of this specification. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0016] like Figure 1 The diagram shown illustrates the overall structure of the gantry crane safety certification circuit provided in this embodiment. While this specification provides the structure shown in the following embodiments or figures, based on conventional methods or without creative effort, the structure may include more or fewer components after some combinations. These structures are not limited to those shown in the embodiments or figures of this specification. In practical applications of devices or terminal products, the structures described can be executed sequentially or in parallel according to the embodiments or module structures.

[0017] The gantry crane safety authentication circuit provided in the embodiments of this specification includes: The authentication unit includes the face and fingerprint authentication module F13; The main controller is connected to the authentication unit and the power supply unit; The remote control power supply module is connected to the main controller, the gantry crane remote control interface, and the power supply unit, respectively. The power supply unit is used to supply power to the authentication unit, the main controller, and the remote control power supply module.

[0018] Specifically, the face and fingerprint authentication module F13 is a face and fingerprint authentication machine in the prior art. This application does not restrict the selection of the face and fingerprint authentication machine, and it can be specifically the Anjiangjun face and fingerprint authentication machine. The gantry crane remote control is a battery-free remote control, and its power supply can only be provided by the remote control power supply module. In this circuit, the operator is authenticated through the authentication unit. After successful authentication, a TTL level signal is sent to the main controller. After receiving the TTL level signal sent by the authentication unit, or after the main controller detects that the signal of the SW_ADC pin changes from low level to high level, it will send a level signal to the remote control power supply module to enable the remote control power supply module to supply power to the remote control, thereby enabling the operator to operate the remote control to complete the lifting operation of the gantry crane. Alternatively, the main controller can forward the TTL level signal sent by the authentication unit to the remote control power supply module, which can ensure that the personnel using the remote control are authorized personnel and improve the safety of gantry crane operation.

[0019] Furthermore, such as Figure 2 The diagram shows the connection structure of the authentication unit, which specifically includes: One end of the face fingerprint authentication module F13 is connected to a 3V power supply through a resistor R12, and the other end of the face fingerprint authentication module F13 is grounded through a resistor R11. The other end of the face fingerprint authentication module F13 is also connected to the main controller.

[0020] Specifically, the 3V power supply provided by the power supply unit powers the face and fingerprint authentication module F13. The 3V power passes through resistor R12 to reach the face and fingerprint authentication module F13. The parameter of resistor R12 is 1K. After being powered on, the face and fingerprint authentication module F13 starts to work and authenticates the operator's fingerprint and / or face. The face and fingerprint authentication module F13 sends a level signal to the SW_ADC pin of the main controller. The other end of the face and fingerprint authentication module F13 is also grounded through resistor R11. The parameter of resistor R11 is 10K. The face and fingerprint authentication module completes the operator's identity authentication operation in this way.

[0021] Furthermore, such as Figure 5 The diagram shown is a structural schematic of the remote control power supply module, which specifically includes: Port 1 of the gantry crane remote control interface J6 is grounded, port 2 of the gantry crane remote control interface J6 is connected to the drain of MOSFET Q1, the gate of MOSFET Q1 is connected to the main controller through resistor R7, and the source of MOSFET Q1 is connected to a 3V power supply.

[0022] Specifically, the face and fingerprint authentication module F13 can be powered by either 3V or 12V power supply, depending on the model used. When the F13 module recognizes a correct face or fingerprint, it will output a switch signal state, i.e., F13 is closed. When the F13 output is in the closed state, it will output a TTL level signal, which is input to the PA pin of the STM32F103RCT6 main control chip. When the PA pin of the STM32F103RCT6 main control chip is triggered by a high level, it indicates that a correct face or fingerprint has been recognized. At this time, the STM32F103RCT6 main control chip will output a low level signal to the gate of MOSFET Q1 (pin 1) through the PC pin. When pin 1 of Q1 is low, MOSFET Q1 is turned on, and pin 3 of Q1 (drain) outputs DC 3V. At this time, the power supply at both ends of the gantry crane remote control interface J6 is powered. To turn off the controller power, simply turn off the power switch of the power supply unit.

[0023] Furthermore, such as Figure 3 The diagram shows the connection structure of the power supply unit, which specifically includes: Port 1 of lithium battery interface J2 is grounded. Port 2 of lithium battery interface J2 is connected to port 1 of power switch J1. Port 2 of power switch J1 is connected to the VIN port of step-down module U2. Port 2 of power switch J1 also outputs 12V power. The VIN port of step-down module U2 is also connected to one end of resistor R1. The other end of resistor R1 is connected to the main controller and resistor R3 respectively. The other end of resistor R3 is grounded. The VOUT port of step-down module U2 outputs 3V power. The GND port of step-down module U2 is grounded.

[0024] Specifically, the power supply unit includes a power switch J1. When the operator presses the power switch J1, the power supply unit draws power from the lithium battery. Since the lithium battery outputs 12V, port 2 of the power switch J1 outputs 12V power. At the same time, the power switch J1 outputs the 12V power to the VIN port (input port) of the step-down module U2, so that the step-down module U2 can step down the 12V power to 3V power and output it through the OUT port (output port). The GND port of the step-down module U2 is grounded. The step-down module U2 is a step-down module in the prior art. In addition, port 2 of the power switch J1 is also connected to the main controller through a sampling circuit so that the main controller can monitor the power of the lithium battery. The sampling circuit converts the collected analog signal into a digital signal. After the signal is transmitted to the main controller, the chip gives a signal to control the power switch indicator light to flash, prompting the operator to charge.

[0025] In this embodiment of the application, the power supply unit further includes a charging module, such as... Figure 4The diagram shown is a structural schematic of the charging module, which specifically includes: Port 1 of the charging interface J4 is grounded, and port 2 of the charging interface J4 is connected to port 2 of the lithium battery interface J2 through diode D1.

[0026] Specifically, port 1 of charging interface J4 is grounded, and port 2 of charging interface J4 is connected to port 2 of lithium battery interface J2 through diode D1, the diode being model B340AE-13.

[0027] One end of resistor R1 is also connected to one end of capacitors C3, C4, C5, C6, C7, and C8, respectively. The other ends of capacitors C3, C4, C5, C6, C7, and C8 are all grounded. This capacitor bank enables the main controller's power supply to be more stable.

[0028] The main controller is specifically an STM32F103RCT6, which uses a 64-pin package and supports various peripheral functions such as ADC, USATR, I2C, SPI, and I / O, meeting all the functional requirements of this solution. The circuit also includes a crystal oscillator module connected to the main controller, which provides a stable and accurate clock signal for the electronic circuit system of this application.

[0029] It should be understood that when an element is referred to as “fixed to” or “set on” another element, it may be directly on the other element or may be interposed with an intervening element; when an element is referred to as “connected to” another element, it may be directly connected to the other element or may be interposed with an intervening element. Furthermore, the term “connected” as used herein may include wireless connections; the word “and / or” as used includes any and all combinations of one or more of the associated listed items.

[0030] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0031] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0032] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0033] The storage media mentioned above can be read-only memory, disk, or optical disk, etc.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

[0036] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A safety authentication circuit for a gantry crane, characterized in that, The circuit includes: The authentication unit includes the face and fingerprint authentication module F13; The main controller is connected to the authentication unit and the power supply unit; The remote control power supply module is connected to the main controller, the gantry crane remote control interface, and the power supply unit, respectively. The power supply unit is used to supply power to the authentication unit, the main controller, and the remote control power supply module.

2. The gantry crane safety authentication circuit as described in claim 1, characterized in that, The authentication unit specifically includes: One end of the face fingerprint authentication module F13 is connected to a 3V power supply through a resistor R12, and the other end of the face fingerprint authentication module F13 is grounded through a resistor R11. The other end of the face fingerprint authentication module F13 is also connected to the main controller.

3. The gantry crane safety authentication circuit as described in claim 1, characterized in that, The specific model of the main controller is STM32F103RCT6.

4. The gantry crane safety authentication circuit as described in claim 1, characterized in that, The remote control power supply module specifically includes: Port 1 of the gantry crane remote control interface J6 is grounded, port 2 of the gantry crane remote control interface J6 is connected to the drain of MOSFET Q1, the gate of MOSFET Q1 is connected to the main controller through resistor R7, and the source of MOSFET Q1 is connected to a 3V power supply.

5. The gantry crane safety authentication circuit as described in claim 1, characterized in that, The power supply unit specifically includes: Port 1 of lithium battery interface J2 is grounded. Port 2 of lithium battery interface J2 is connected to port 1 of power switch J1. Port 2 of power switch J1 is connected to the VIN port of step-down module U2. Port 2 of power switch J1 also outputs 12V power. The VIN port of step-down module U2 is also connected to one end of resistor R1. The other end of resistor R1 is connected to the main controller and resistor R3 respectively. The other end of resistor R3 is grounded. The VOUT port of step-down module U2 outputs 3V power. The GND port of step-down module U2 is grounded.

6. The gantry crane safety authentication circuit as described in claim 5, characterized in that, The power supply unit further includes a charging module, which specifically includes: Port 1 of the charging interface J4 is grounded, and port 2 of the charging interface J4 is connected to port 2 of the lithium battery interface J2 through diode D1.

7. The gantry crane safety authentication circuit as described in claim 5, characterized in that, One end of the resistor R1 is also connected to one end of capacitor C3, one end of capacitor C4, one end of capacitor C5, one end of capacitor C6, one end of capacitor C7 and one end of capacitor C8 respectively. The other ends of capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7 and capacitor C8 are all grounded.

8. The gantry crane safety authentication circuit as described in claim 1, characterized in that, The circuit also includes a crystal oscillator module, which is connected to the main controller.

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