CN220628517U - Switch cabinet protection device based on 51 singlechip and remote control system thereof - Google Patents

Switch cabinet protection device based on 51 singlechip and remote control system thereof Download PDF

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CN220628517U
CN220628517U CN202322121038.1U CN202322121038U CN220628517U CN 220628517 U CN220628517 U CN 220628517U CN 202322121038 U CN202322121038 U CN 202322121038U CN 220628517 U CN220628517 U CN 220628517U
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switch cabinet
component
output end
main control
electrically connected
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金琪
刘美俊
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Xiamen University of Technology
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Xiamen University of Technology
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Abstract

The utility model provides a switch cabinet protection device based on a 51 single-chip microcomputer and a remote control system thereof, wherein the switch cabinet protection device comprises a main control component, an opening contact component, a display module, an operation component, a temperature and humidity sensor, a wireless communication module and an alarm component, wherein the output end of the main control component is electrically connected with the input end of the display module and the input end of the alarm component, the input end of the main control component is electrically connected with the output end of the operation component, the output end of the temperature and humidity sensor and the output end of the opening contact component, the data end of the main control component is electrically connected with the data end of the wireless communication module, and the wireless communication module is used for being wirelessly connected with an external remote control terminal; the main control component is configured to unlock a cabinet door lock of the power switch cabinet according to the received unlocking signal sent by the unlocking contact component or the unlocking signal sent by the operation component. In addition, the key of traditional power switch cabinet protection device loses easily, and factor of safety is not high, needs artifical real-time to on-the-spot humiture monitoring, and the human cost is high, and is efficient.

Description

Switch cabinet protection device based on 51 singlechip and remote control system thereof
Technical Field
The utility model relates to the technical field of switch cabinet monitoring protection, in particular to a switch cabinet protection device based on a 51 single-chip microcomputer and a remote control system thereof.
Background
A switch cabinet (switch cabinet) is an electrical device, wherein the external line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a sub-control switch, and each shunt is arranged according to the requirement; the main function of the switch cabinet is to open and close, control and protect electric equipment in the process of generating, transmitting, distributing and converting electric energy of the electric power system, and the switch cabinet is internally provided with a breaker, a disconnecting switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and other components. The traditional power switch cabinet protection device generally locks the switch cabinet by using a key, can not effectively protect the power switch cabinet well, and the key of the original power switch cabinet door is easy to lose, so that the safety coefficient is not high; and when monitoring temperature and humidity around the power switch cabinet, all need the manual work real-time to measure on site, improved the cost of manpower greatly, efficiency is not high moreover to can not solve in the first time when power switch cabinet breaks down, increase economic loss.
In view of this, the present application is presented.
Disclosure of Invention
The utility model discloses a switch cabinet protection device based on a 51 single-chip microcomputer and a remote control system thereof, which can effectively solve the problems that the traditional power switch cabinet protection device in the prior art is used for locking a switch cabinet by a key, the power switch cabinet cannot be effectively protected, the key of the cabinet door of the original power switch cabinet is easy to lose, and the safety coefficient is not high; and when monitoring temperature and humidity around the power switch cabinet, all need the manual work real-time to measure on site, improved the cost of manpower greatly, efficiency is not high moreover to can not solve in the first time when power switch cabinet breaks down, increase economic loss's problem.
The utility model discloses a switch cabinet protection device based on a 51 single-chip microcomputer, which comprises: the device comprises a main control assembly, an opening contact assembly, a display module, an operation assembly, a temperature and humidity sensor, a wireless communication module and an alarm assembly;
the output end of the main control component is electrically connected with the input end of the display module and the input end of the alarm component, the input end of the main control component is electrically connected with the output end of the operation component, the output end of the temperature and humidity sensor and the output end of the opening contact component, the data end of the main control component is electrically connected with the data end of the wireless communication module, and the wireless communication module is used for being wirelessly connected with an external remote control terminal;
the temperature and humidity sensor is configured to collect a temperature value and a humidity value around the power switch cabinet;
the main control assembly is configured to open a cabinet door lock of the power switch cabinet according to the received opening signal sent by the opening contact assembly or the received opening signal sent by the operation assembly.
Preferably, the main control component comprises a controller, a reset circuit, a power supply and a crystal oscillator circuit; the power supply end of the controller is electrically connected with the output end of the power supply, the input end of the controller is electrically connected with the output end of the reset circuit and the output end of the crystal oscillator circuit, the output end of the operating component, the output end of the temperature and humidity sensor and the output end of the opening contact component are electrically connected, the output end of the controller is electrically connected with the input end of the display module and the input end of the alarm component, and the data end of the controller is electrically connected with the data end of the wireless communication module.
Preferably, the controller is an STC89C51 singlechip.
Preferably, the opening contact assembly comprises a first opening operation contact, a second opening operation contact and a third monitoring observation contact, wherein the first opening operation contact is configured to sense the stepping action of an operator, the second opening operation contact is configured to sense the stepping action of the operator, and the third monitoring observation contact is configured to sense the stepping action of the observer.
Preferably, the display module is an LCD1602 liquid crystal display.
Preferably, the operation component is a matrix keyboard, row lines of the matrix keyboard are electrically connected with the output end of the main control component, and column lines of the matrix keyboard are electrically connected with the input end of the main control component.
Preferably, the temperature and humidity sensor is a DHT11 temperature sensor.
Preferably, the device further comprises an emergency disconnection key, wherein the output end of the emergency disconnection key is electrically connected with the input end of the main control component.
Preferably, the alarm assembly comprises an indicator light module and a sound early warning module, wherein the output end of the main control assembly is electrically connected with the input end of the indicator light module and the input end of the sound early warning module.
The utility model also discloses a remote control system, which comprises a remote control terminal and the switch cabinet protection device based on the 51 single-chip microcomputer, wherein the wireless communication module is in wireless connection with the remote control terminal for data interaction.
In summary, the switch cabinet protection device based on the 51 single-chip microcomputer and the remote control system thereof provided by the embodiment basically can complete all expected functions by adopting the STC89C51 single-chip microcomputer as a main chip, simultaneously reduce the input cost of the design, reduce the power consumption, input the power switch cabinet door lock by matrix keys, display the power switch cabinet door lock through an LCD1602 liquid crystal display screen, simulate unlocking by a relay and match with an unlocking indicator lamp, basically complete the design of an intelligent coded lock, well guarantee the safety performance of the power switch cabinet, greatly improve and perfect the safety performance compared with the traditional key lock, and simultaneously input a correct code for safely powering on the power switch cabinet. Two persons need to operate the cabinet door simultaneously when opening the cabinet door, a guardian is needed when opening the cabinet door for safety, a contact on the sole of the guardian needs to be stepped on, and three contacts are additionally arranged as one of conditions for opening the power switch cabinet. Meanwhile, in order to avoid short circuit caused by overlarge humidity, the temperature is too high due to faults of the circuit, the humidity and the temperature are transmitted to a mobile phone of a user through Bluetooth equipment, the user can set the upper limit and the lower limit of the temperature according to the temperature and humidity requirements, and the intellectualization of the power switch cabinet protection device is greatly improved. Therefore, the problem that the traditional power switch cabinet protection device in the prior art locks the switch cabinet by adopting a key generally is solved, the power switch cabinet cannot be well and effectively protected, the key of the cabinet door of the original power switch cabinet is easy to lose, and the safety coefficient is not high; and when monitoring temperature and humidity around the power switch cabinet, all need the manual work real-time to measure on site, improved the cost of manpower greatly, efficiency is not high moreover to can not solve in the first time when power switch cabinet breaks down, increase economic loss's problem.
Drawings
Fig. 1 is a schematic structural diagram of a switch cabinet protection device based on a 51 single-chip microcomputer according to an embodiment of the present utility model.
Fig. 2 is a schematic circuit diagram of a display module of a switch cabinet protection device based on a 51-singlechip according to an embodiment of the utility model.
Fig. 3 is a schematic structural diagram of a remote control system according to an embodiment of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a first embodiment of the present utility model provides a switch cabinet protection device based on a 51-singlechip, including: the device comprises a main control assembly 1, an opening contact assembly 2, a display module 3, an operation assembly 4, a temperature and humidity sensor 5, a wireless communication module 6 and an alarm assembly 7;
the output end of the main control assembly 1 is electrically connected with the input end of the display module 3 and the input end of the alarm assembly 7, the input end of the main control assembly 1 is electrically connected with the output end of the operation assembly 4, the output end of the temperature and humidity sensor 5 and the output end of the opening contact assembly 2, the data end of the main control assembly 1 is electrically connected with the data end of the wireless communication module 6, and the wireless communication module 6 is used for being wirelessly connected with an external remote control terminal;
the temperature and humidity sensor 5 is configured to collect a temperature value and a humidity value around the power switch cabinet;
the main control component 1 is configured to unlock a cabinet door lock of the power switch cabinet according to the received unlocking signal sent by the unlocking contact component 2 or the received unlocking signal sent by the operation component 4.
The traditional power switch cabinet protection device generally locks the switch cabinet by using a key, can not effectively protect the power switch cabinet well, and the key of the original power switch cabinet door is easy to lose, so that the safety coefficient is not high; and when monitoring temperature and humidity around the power switch cabinet, all need the manual work real-time to measure on site, improved the cost of manpower greatly, efficiency is not high moreover to can not solve in the first time when power switch cabinet breaks down, increase economic loss.
Specifically, in the present embodiment, the wireless communication module 6 employs an HC05 bluetooth module. Only the receiving and transmitting ends of the module are connected with serial input and output pins of the microcontroller. The HC05 module has a power supply of 3.3V or 5V, and the power supply mode of the module is not required to be considered. The Bluetooth serial port module is provided with a status lamp which can display the working status of the Bluetooth serial port module. The module uses two working states: one is an automatic connection mode of operation, where the frequency of status light flashing is relatively fast; another operating state is a command responsive operating mode, which is a relatively slow blinking speed of the status light. The mobile phone is connected with the singlechip through Bluetooth. Because the bluetooth module is a full duplex communication mode, when the bluetooth module HC05 is used, the transmitting and receiving ends of the bluetooth are connected to the transmitting and receiving ends of the singlechip. Setting the frame format of serial port data as 8-bit word length, 1 stop bit and no parity check; setting the baud rate to 9600 b/s; enabling transmission and reception of interrupts. Here, the reception and transmission of the data respectively handled by the interrupt includes: and a control command for the robot sent by the upper computer. In the receiving and transmitting processes, the data is transmitted bit by bit. A data set is required to store the data and then a cycle is added to sequentially transmit and receive the data. In addition, it is also necessary to detect whether the first and last bits of data are data that we have defined in advance.
In this embodiment, in the switch cabinet protection device based on a 51-singlechip, the temperature and humidity sensor 5 forms a signal acquisition circuit, which is responsible for acquiring data to be monitored; the wireless communication module 6 is connected with the singlechip chip of the main control assembly 1 and is responsible for sending the measured data to a remote terminal for alarming in time; the display module 3 is used for displaying related data, the operation component 4 is used for controlling a chip to realize related functions, and the operation component is directly connected with the singlechip chip of the main control component 1.
In this embodiment, the main control component 1 is adopted as a main chip, so that all expected functions can be basically completed, the input cost of the design is reduced, the power consumption is reduced, the power switch cabinet door lock is input by matrix keys, the display module displays that the relay simulates unlocking and is matched with an unlocking indicator lamp, the design of the intelligent coded lock is basically completed, the safety performance of the power switch cabinet can be well ensured, compared with the traditional key lock, the safety performance of the power switch cabinet is greatly improved and perfected, and meanwhile, in order to enable the power switch cabinet to be safely powered on, a correct password is required to be input. Two persons need to operate the cabinet door simultaneously when opening the cabinet door, a guardian is needed when opening the cabinet door for safety, a contact on the sole of the guardian needs to be stepped on, and three contacts are additionally arranged as one of conditions for opening the power switch cabinet. Meanwhile, in order to avoid short circuit caused by overlarge humidity, the temperature is too high due to faults of the circuit, the humidity and the temperature are transmitted to a mobile phone of a user through Bluetooth equipment, the user can set the upper limit and the lower limit of the temperature according to the temperature and humidity requirements, and the intellectualization of the power switch cabinet protection device is greatly improved.
In one possible embodiment of the present utility model, the master control assembly 1 includes a controller 11, a reset circuit 12, a power supply 13, and a crystal oscillator circuit 14; the power end of the controller 11 is electrically connected with the output end of the power supply 13, the input end of the controller 11 is electrically connected with the output end of the reset circuit 12 and the output end of the crystal oscillator circuit 14, the output end of the operating component 4, the output end of the temperature and humidity sensor 5 and the output end of the opening contact component 2 are electrically connected, the output end of the controller 11 is electrically connected with the input end of the display module 3 and the input end of the alarm component 7, and the data end of the controller 11 is electrically connected with the data end of the wireless communication module 6.
Preferably, the controller 11 may be an STC89C51 single-chip microcomputer.
Specifically, in this embodiment, the switch cabinet protection device based on the 51 single-chip microcomputer uses the STC89C51 single-chip microcomputer as a core chip, and is assisted by a reset circuit and a crystal oscillator circuit. The STC89C51 singlechip learning board is a system based on an 8-bit singlechip processing chip STC89C51RC, the STC89C51RC is a system programmable chip adopting an 8051 core ISP (In System Programming), the highest working clock frequency is 80MHz, a Flash read-only program memory capable of being repeatedly rewritten for 1000 times is contained in the chip, the device is compatible with a standard MCS-51 instruction system and an 80C51 pin structure, a general 8-bit CPU and an ISP Flash memory unit are integrated in the chip, the system programmable chip has the characteristic of being programmable in a system (ISP), and can download the program code of a user into the singlechip by matching with a control program of a PC end, so that a general programmer is omitted from being purchased, and the speed is higher. The STC89C51RC series singlechip is an 8051 core singlechip compatible with a single clock/machine cycle (1T), is a new generation 8051 singlechip with high speed and low power consumption, has a brand new pipeline/simplified instruction set structure, and is internally integrated with a special reset circuit for MAX 810. It should be noted that, in other embodiments, other types of controllers may be used, and these embodiments are not limited in particular herein, but all fall within the scope of the present utility model.
The crystal oscillator of the crystal oscillator circuit 14 can provide a basic clock signal for the circuit, and normally the crystal oscillator is applied in a circuit system, so that all parts can be kept synchronous, and part of micro-processing chips cannot work without crystal oscillator support, and the crystal oscillator is usually matched with a phase-locked loop circuit to support the clock frequency operation required by the circuit system; the circuit is commonly applied to circuits and interfaces of a single chip microcomputer, a DSP, an ARM and the like.
The reset circuit 12 is a circuit device for restoring the circuit to an initial state, and its operation principle is different from that of a calculator, except for the start-up principle and means. The reset circuit is used to restore the circuit to the starting state. Just as the clear button of the calculator acts to return to the original state and re-calculate. The means by which the reset circuit is activated is different from the calculator clear button. Firstly, resetting operation is immediately carried out when the circuit is powered on; secondly, the operation can be performed manually when necessary; thirdly, the operation is automatically performed according to the requirement of the program or the circuit operation. The reset circuit is relatively simple, and can be realized by only combining a resistor and a capacitor, and the reset circuit is complicated and has matching programs such as a triode and the like.
In one possible embodiment of the present utility model, the opening contact assembly 2 includes a first opening operation contact 21, a second opening operation contact 22, and a third monitoring observation contact 23, wherein the first opening operation contact 21 is configured to sense a stepping motion of an operator, the second opening operation contact 22 is configured to sense a stepping motion of the operator, and the third monitoring observation contact 23 is configured to sense a stepping motion of the observer.
Specifically, in this embodiment, in order to improve the safety of the power switch cabinet, two people need to operate together at the same time, and under the condition that a monitoring observer steps on the electric shock button, the device can be opened and normally powered on, so 3 contacts are additionally arranged, and as one of the conditions for opening the power switch cabinet, the power switch cabinet can be opened only when the three contacts are simultaneously pressed down and under the condition that other conditions are met, so that the purpose can be very good to enhance the safety of the power switch cabinet and reduce the phenomenon of misoperation caused by poor states of one person.
Referring to fig. 2, in one possible embodiment of the present utility model, the display module 3 is an LCD1602 liquid crystal display.
Specifically, in the present embodiment, for the liquid crystal display of the LCD1602, it is necessary to write the address of the place to be displayed by a command first, and then write the data sequentially. The address is automatically incremented after the first content is displayed after the address is written. The function name l cd1602_wr ite_character (uchar x, uchar y, uchar x s), the parameters are x, y, s, wherein x, y represents the position coordinate on the liquid crystal display screen, s is the character array to be displayed; and calculating the address according to the position coordinates which are required to be displayed by the input.
In one possible embodiment of the present utility model, the operation module 4 is a matrix keyboard, the row lines of the matrix keyboard are electrically connected to the output end of the main control module 1, and the column lines of the matrix keyboard are electrically connected to the input end of the main control module 1.
Specifically, in this embodiment, for a matrix keyboard, the I/O port of the singlechip connected to the row line of the matrix keyboard is used as its output end, and the I/O port of the singlechip connected to the column line is used as the input end, when all the input ends are at high level, no key is pressed, and when the row line output indicates low level, once the key is pressed, whether the key has been pressed can be judged by reading the state displayed by the input line, in this design, the key is used as the key for inputting the password, the difficulty of the password lock can be well expanded, and the safety of the power switch cabinet is improved and increased by adding the number of digits of the password.
In one possible embodiment of the present utility model, the temperature and humidity sensor 5 may be a DHT11 temperature sensor.
Specifically, in this embodiment, as for the temperature sensor, a DHT11 temperature sensor is used, and the sensor includes a resistive type humidity sensing element and an NTC temperature measuring element, and is connected to a high-performance 8-bit single chip microcomputer. The port 1 of the temperature sensor is grounded, the port 2 and the port 3 are connected with a 10K pull-up resistor and then connected with a power supply and a singlechip, and the acquired digital signals are directly sent to the singlechip for processing and display.
In the embodiment, the DHT11 temperature sensor is a temperature and humidity composite sensor with calibrated digital signal output, and the temperature and humidity composite sensor applies a special digital module acquisition technology and a temperature and humidity sensing technology to ensure that the product has extremely high reliability and excellent long-term stability. The DHT11 digital temperature and humidity sensor is a temperature and humidity composite sensor with calibrated digital signal output, and the temperature and humidity composite sensor applies a special digital module acquisition technology and a temperature and humidity sensing technology to ensure that a product has extremely high reliability and excellent long-term stability. The sensor comprises a resistance type humidity sensing element and an NTC temperature measuring element, and is connected with a high-performance 8-bit singlechip. Therefore, the product has the advantages of excellent quality, ultrafast response, strong anti-interference capability, extremely high cost performance and the like. Each DHT11 sensor is calibrated in a very accurate humidity verification chamber. The calibration coefficients are stored in the OTP memory in the form of a program, and are called in the sensor during the processing of the detection signal. The single-wire serial interface enables system integration to be simple and quick. The ultra-small volume and the extremely low power consumption make the ultra-small volume and the extremely low power consumption become the best choice in the severe application occasions. The product is 4-pin single-row pin package, and the connection is convenient. It should be noted that, in other embodiments, other types of display modules, smoke detection modules, and temperature and humidity sensors may be used, which are not limited herein, but all of these embodiments are within the scope of the present utility model.
In a possible embodiment of the present utility model, an emergency disconnect key 8 is further included, and an output end of the emergency disconnect key 8 is electrically connected to an input end of the main control assembly 1.
Specifically, in this embodiment, the emergency disconnection button 8 is equivalent to an emergency stop button provided in the switch cabinet protection device based on the 51-singlechip, and when the temperature exceeds the set temperature upper limit, the emergency stop button is pressed to open the cabinet door for opening the door.
In one possible embodiment of the present utility model, the alarm module 7 includes an indicator light module 71 and a sound pre-warning module 72, where an output end of the main control module 1 is electrically connected to an input end of the indicator light module 71 and an input end of the sound pre-warning module 72.
Specifically, in this embodiment, the indicator light module 71 may be an LED indicator light, and the sound warning module 72 may be a buzzer, which is mainly configured to generate a relevant light prompt and sound prompt when the switch cabinet protection device based on the 51-singlechip is abnormal, that is, generate an optical alarm signal and a sound alarm signal, so as to remind a user. It should be noted that in other embodiments, other types of alarm assemblies may be used, and these embodiments are not specifically limited herein, but are within the scope of the present utility model.
In conclusion, the STC89C51 singlechip is adopted as a main chip, all expected functions can be basically completed, the input cost of the design is reduced, the power consumption is reduced, the power switch cabinet door lock is input by matrix keys, the power switch cabinet door lock is displayed through an LCD1602 liquid crystal display screen, a relay is used for simulating unlocking and is matched with an unlocking indicator lamp, the design of the intelligent coded lock is basically completed, the safety performance of the power switch cabinet can be well ensured, and compared with the traditional key lock, the safety performance of the power switch cabinet is greatly improved and perfected, and meanwhile, in order to ensure the safe power-on of the power switch cabinet, a correct code is required to be input. Two persons need to operate simultaneously when opening the cabinet door, and for safety reasons, a guardian is needed when opening the cabinet door, and the sole of the guardian needs to be stepped on by one contact, and three contacts are additionally arranged. Meanwhile, in order to avoid short circuit caused by overlarge humidity, the temperature is too high due to faults of the circuit, the humidity and the temperature are transmitted to a mobile phone of a user through Bluetooth equipment, the user can set the upper limit and the lower limit of the temperature according to the temperature and humidity requirements, and the intellectualization of the power switch cabinet protection device is greatly improved.
Referring to fig. 3, a second embodiment of the present utility model provides a remote control system, which includes a remote control terminal 9 and a switch cabinet protection device based on a 51-singlechip as described in any one of the above, wherein the wireless communication module 6 is wirelessly connected with the remote control terminal 9 for data interaction.
The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model.

Claims (10)

1. Switch cabinet protection device based on 51 singlechip, characterized by comprising: the device comprises a main control assembly, an opening contact assembly, a display module, an operation assembly, a temperature and humidity sensor, a wireless communication module and an alarm assembly;
the output end of the main control component is electrically connected with the input end of the display module and the input end of the alarm component, the input end of the main control component is electrically connected with the output end of the operation component, the output end of the temperature and humidity sensor and the output end of the opening contact component, the data end of the main control component is electrically connected with the data end of the wireless communication module, and the wireless communication module is used for being wirelessly connected with an external remote control terminal;
the temperature and humidity sensor is configured to collect a temperature value and a humidity value around the power switch cabinet;
the main control assembly is configured to open a cabinet door lock of the power switch cabinet according to the received opening signal sent by the opening contact assembly or the received opening signal sent by the operation assembly.
2. The switch cabinet protection device based on the 51 single-chip microcomputer according to claim 1, wherein the main control component comprises a controller, a reset circuit, a power supply and a crystal oscillator circuit; the power supply end of the controller is electrically connected with the output end of the power supply, the input end of the controller is electrically connected with the output end of the reset circuit and the output end of the crystal oscillator circuit, the output end of the operating component, the output end of the temperature and humidity sensor and the output end of the opening contact component are electrically connected, the output end of the controller is electrically connected with the input end of the display module and the input end of the alarm component, and the data end of the controller is electrically connected with the data end of the wireless communication module.
3. The switch cabinet protection device based on the 51 single-chip microcomputer according to claim 2, wherein the controller is an STC89C51 single-chip microcomputer.
4. The 51-singlechip-based switch cabinet protection device of claim 1, wherein the opening contact assembly comprises a first opening operation contact, a second opening operation contact and a third monitoring observation contact, wherein the first opening operation contact is configured to sense a stepping action of an operator, the second opening operation contact is configured to sense the stepping action of the operator, and the third monitoring observation contact is configured to sense the stepping action of an observer.
5. The switch cabinet protection device based on a 51-singlechip according to claim 1, wherein the display module is an LCD1602 liquid crystal display.
6. The switch cabinet protection device based on the 51 single-chip microcomputer according to claim 1, wherein the operation component is a matrix keyboard, row lines of the matrix keyboard are electrically connected with an output end of the main control component, and column lines of the matrix keyboard are electrically connected with an input end of the main control component.
7. The switch cabinet protection device based on the 51 single-chip microcomputer according to claim 1, wherein the temperature and humidity sensor is a DHT11 temperature sensor.
8. The 51-singlechip-based switch cabinet protection device of claim 1, further comprising an emergency disconnection button, wherein an output end of the emergency disconnection button is electrically connected with an input end of the main control assembly.
9. The switch cabinet protection device based on the 51 single-chip microcomputer according to claim 1, wherein the alarm assembly comprises an indicator light module and a sound early warning module, and the output end of the main control assembly is electrically connected with the input end of the indicator light module and the input end of the sound early warning module.
10. A remote control system, comprising a remote control terminal and a switch cabinet protection device based on a 51 single-chip microcomputer according to any one of claims 1 to 9, wherein the wireless communication module is in wireless connection with the remote control terminal for data interaction.
CN202322121038.1U 2023-08-08 2023-08-08 Switch cabinet protection device based on 51 singlechip and remote control system thereof Active CN220628517U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322121038.1U CN220628517U (en) 2023-08-08 2023-08-08 Switch cabinet protection device based on 51 singlechip and remote control system thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322121038.1U CN220628517U (en) 2023-08-08 2023-08-08 Switch cabinet protection device based on 51 singlechip and remote control system thereof

Publications (1)

Publication Number Publication Date
CN220628517U true CN220628517U (en) 2024-03-19

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CN202322121038.1U Active CN220628517U (en) 2023-08-08 2023-08-08 Switch cabinet protection device based on 51 singlechip and remote control system thereof

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GR01 Patent grant