CN217406248U - Safety monitoring device for electrical equipment - Google Patents

Abstract

The present disclosure relates to an electrical equipment safety monitoring device, the device includes: the power supply comprises a current transformer, a switching circuit, a power supply assembly and a controller, wherein the acquisition end of the current transformer is used for connecting electrical equipment, and the output end of the current transformer is connected with the switching circuit and used for acquiring a first target current signal; the switch circuit is also connected with the power supply assembly and the controller and is used for entering a first conduction mode under the condition of receiving a first electric signal triggered by the controller and entering a second conduction mode under the condition of receiving a second electric signal triggered by the controller; the power supply assembly is connected with the switch circuit and the controller; the controller is used for sending a first electric signal to the switch circuit when the target voltage of the power supply assembly is larger than or equal to a preset voltage threshold value, and sending a second electric signal to the switch circuit when the target voltage is smaller than the preset voltage threshold value.

Description

Safety monitoring device for electrical equipment

Technical Field

The utility model relates to an electrical equipment safety monitoring field specifically relates to an electrical equipment safety monitoring device.

Background

Based on the safety requirement of electricity utilization, the electrical equipment needs to be monitored at regular time, wherein the monitoring of the power-on condition is an important component of the monitoring of the electrical equipment, and the purpose is to find out the fault condition in time so as to avoid unsafe accidents caused by faults or improper operation of the electrical equipment.

At present, the monitoring of electrical equipment needs to be carried out manually, and under the condition of monitoring the power-on condition of the electrical equipment, a universal meter needs to be manually utilized to carry out power utilization condition inspection on a plurality of electrical equipment such as a power distribution cabinet air switch, a relay, a wire connector, a transformer, a power line and the like, so that firstly, the phenomenon of monitoring omission easily occurs in manual monitoring, and manual operation is time-consuming and labor-consuming; and secondly, the battery needs to be replaced or charged manually and periodically for the multimeter, otherwise, the multimeter cannot be put into use normally.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the present disclosure provides an electrical equipment safety monitoring device, the device including: a current transformer, a switching circuit, a power supply assembly and a controller,

the acquisition end of the current transformer is used for connecting electrical equipment, and the output end of the current transformer is connected with the switching circuit and used for carrying out current transformation on the specified current in the electrical equipment to obtain a first target current signal;

the switching circuit is further connected with the power supply assembly and the controller, and is used for entering a first conduction mode to connect the current transformer with the controller when receiving a first electric signal triggered by the controller, and entering a second conduction mode to transmit the first target current signal output by the current transformer to the power supply assembly when receiving a second electric signal triggered by the controller;

the power supply assembly is connected with the switching circuit and the controller and is used for charging by utilizing the first target current signal;

the controller is used for acquiring a target voltage of the power supply assembly, sending a first electric signal to the switch circuit at intervals of a first preset time under the condition that the target voltage is greater than or equal to a preset voltage threshold, and sending a second electric signal to the switch circuit under the condition that the target voltage is less than the preset voltage threshold.

Optionally, the power supply assembly includes a voltage conversion module and an energy storage module, one end of the voltage conversion module is connected to the switch circuit, the other end of the voltage conversion module is connected to the energy storage module, and both the voltage conversion module and the energy storage module are connected to the controller;

the controller is used for acquiring a target voltage of the energy storage module and sending a charging signal to the voltage conversion module under the condition that the target voltage is less than or equal to a preset voltage threshold;

the voltage conversion module is used for responding to the received charging signal, performing voltage conversion on the first target current signal to obtain a second target current signal, and sending the second target current signal to the energy storage module;

the energy storage module is used for charging through the second target current signal.

Optionally, the apparatus further comprises: a temperature acquisition component connected with the controller and the power supply component,

the temperature acquisition assembly is used for acquiring temperature information of the electrical equipment and sending the temperature information to the controller under the condition of receiving a temperature acquisition signal triggered by the controller;

the power supply assembly is used for supplying power to the temperature acquisition assembly;

the controller is used for triggering the temperature acquisition signals to the temperature acquisition assembly every second preset time and receiving the temperature information.

Optionally, the temperature acquisition assembly comprises a temperature acquisition circuit and a temperature sensor connected with the temperature acquisition circuit, and the temperature acquisition circuit is further connected with the controller and the power supply assembly;

the temperature sensor is used for acquiring a target simulation temperature of the electrical equipment;

the temperature acquisition circuit is used for converting the target analog temperature acquired by the temperature sensor into a target digital temperature and sending the target digital temperature to the controller.

Optionally, the controller is configured to control the operation of the motor,

the temperature acquisition circuit is also used for sending the temperature acquisition signal to the temperature acquisition circuit every second preset time under the condition that the target voltage is greater than or equal to a preset voltage threshold;

the temperature acquisition circuit is used for controlling the temperature sensor to acquire the target simulation temperature of the electrical equipment under the condition of receiving the temperature acquisition signal.

Optionally, the first target current signal is an analog signal, and the apparatus further includes: an analog-to-digital conversion circuit for converting analog signals,

one end of the analog-to-digital conversion circuit is connected with the switch circuit, the other end of the analog-to-digital conversion circuit is connected with the controller, and the analog-to-digital conversion circuit is used for converting the first target current signal into a digital signal under the condition that the switch circuit is in a first conduction mode so as to obtain a target monitoring current value and sending the target monitoring current value to the controller;

and the controller is used for receiving and storing the target monitoring current value.

Optionally, the analog-to-digital conversion circuit is further connected with the voltage conversion module,

the controller is further used for sending a discharge signal to the voltage conversion module under the condition that the target voltage is greater than a preset voltage threshold;

the voltage conversion module is used for responding to the received discharge signal, performing voltage conversion on the first voltage signal output by the energy storage module to obtain a second voltage signal, and supplying power to the temperature acquisition assembly, the analog-to-digital conversion circuit and the controller through the second voltage signal.

Optionally, the device further comprises an overvoltage and overcurrent protection module, one end of the overvoltage and overcurrent protection module is connected with the output end of the current transformer, the other end of the overvoltage and overcurrent protection module is connected with the switch circuit,

the overvoltage and overcurrent protection module is used for disconnecting the current transformer from the switch circuit under the condition that the first target current signal is larger than a preset limit current.

Optionally, the overvoltage and overcurrent protection circuit further comprises a rectifying and filtering module, one end of the rectifying and filtering module is connected with the overvoltage and overcurrent protection module, the other end of the rectifying and filtering module is connected with the switching circuit,

the rectification filtering module is configured to rectify and filter the first target current signal to obtain a rectified and filtered first target current signal.

Optionally, the apparatus further comprises: and the transmission module is connected with the controller and is used for transmitting the target digital temperature and the target monitoring current value of the electrical equipment to an upper computer.

Optionally, the device may further comprise a humidity module and a display module, both of which are connected to the controller,

the humidity module is used for acquiring the target humidity of the electrical equipment;

and the display module is used for receiving and displaying the target digital temperature, the target monitoring current value and the target humidity sent by the controller.

By adopting the device, under the condition that the voltage of the power supply module in the device is greater than or equal to the preset voltage threshold value, the power supply module is switched to the first conduction mode through the control switch circuit at every first preset time, the conduction condition of a target circuit can be obtained immediately, the monitoring efficiency is greatly improved, human resources are saved, the control switch is set to the second conduction mode at the rest time, the obtained target current signal is utilized for charging, the energy utilization rate is improved, in this way, the conduction mode of the control switch circuit can be used for realizing the charging of the power supply module, the monitoring of the conduction condition of the electrical equipment is realized, the labor cost for ensuring the safety input of the electrical equipment can be effectively saved, and the energy utilization rate can also be effectively improved.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a block diagram of an electrical equipment safety monitoring device shown in accordance with an exemplary embodiment of the present disclosure;

FIG. 2 is a block diagram of an electrical equipment safety monitoring device according to the embodiment shown in FIG. 1 of the present disclosure;

FIG. 3 is a block diagram of an electrical equipment safety monitoring device according to the embodiment shown in FIG. 2 of the present disclosure;

FIG. 4 is a block diagram of an electrical equipment safety monitoring device according to the embodiment shown in FIG. 3 of the present disclosure;

FIG. 5 is a block diagram of an electrical equipment safety monitoring device according to the embodiment shown in FIG. 4 of the present disclosure;

fig. 6 is a block diagram of an electrical equipment safety monitoring device according to the embodiment shown in fig. 5 of the present disclosure.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

It should be noted that all actions of acquiring signals, information or data in the present disclosure are performed under the premise of complying with the corresponding data protection regulation policy of the country of the location and obtaining the authorization given by the owner of the corresponding device.

First, an application scenario of the present disclosure is explained, and the present disclosure may be applied to a scenario of electrical equipment safety monitoring, in which a power-on condition of the electrical equipment needs to be monitored at regular time. At present, the safety inspection of electrical equipment is mainly realized by manually measuring current and manually and regularly patrolling.

However, the inventor finds that the existing electrical equipment safety monitoring method has great defects, for example, the problem of high human resource consumption exists because regular inspection needs to be performed manually, the problem of inaccurate measurement result and safety accidents easily occur because the current is measured manually in a mode which is not standard and scientific enough, and the multimeter is usually needed for manual measurement, and the battery needs to be replaced or charged manually and regularly, otherwise, the multimeter cannot be put into use normally.

In order to solve the above problems, the present application provides an electrical equipment safety monitoring device, by which, when the voltage of a power supply module in the device is greater than or equal to a preset voltage threshold, the device is switched to a first conduction mode by a control switch circuit every a first preset time, the conduction condition of a target line can be immediately obtained, the efficiency of obtaining monitoring data is greatly improved, human resources are saved, and the control switch is set to a second conduction mode at the rest of time, so as to charge by using the obtained first target current signal, the energy utilization rate is improved, and the problem of human resource loss caused by manual periodic charging is also avoided, so that, by controlling the conduction mode of the switch circuit, the monitoring of the conduction condition of the electrical equipment and the charging of the monitoring device can be realized, which is beneficial to saving labor cost, the energy utilization rate is improved, and the problem that safety accidents are easily caused by manual inspection in the related technology can be effectively avoided.

Fig. 1 is a block diagram of an electrical equipment safety monitoring device 100 shown in accordance with an exemplary embodiment of the present disclosure, as shown in fig. 1, the device comprising: a current transformer 101, a switching circuit 102, a power supply assembly 103 and a controller 104,

the acquisition end of the current transformer 101 is used for connecting electrical equipment, and the output end of the current transformer 101 is connected with the switch circuit 102 and used for carrying out current transformation on the specified current in the electrical equipment to obtain a first target current signal;

the switch circuit 102 is further connected to the power supply module 103 and the controller 104, and is configured to enter a first conducting mode to connect the current transformer 101 to the controller 104 when receiving a first electrical signal triggered by the controller 104, and enter a second conducting mode to transmit the first target current signal output by the current transformer 101 to the power supply module 103 when receiving a second electrical signal triggered by the controller 104;

the power supply component 103 is connected to the switching circuit 102 and the controller 104, and configured to perform charging by using the first target current signal;

the controller 104 is configured to collect a target voltage of the power supply module 103, send a first electrical signal to the switch circuit 102 every first preset time when the target voltage is greater than or equal to a preset voltage threshold, and send a second electrical signal to the switch circuit 102 when the target voltage is less than the preset voltage threshold.

The electrical equipment can be equipment such as a power distribution cabinet, a relay, a wire connector, a transformer and the like; the current transformer 101 may be disposed on a live line of the electrical device; the switch circuit 102 may be a bi-directional contact relay, which is connected to one of the contacts to form a path with the controller in a first conduction mode when the control terminal of the relay is in a first conduction state, and changes the connection contact to form a path with the power supply assembly to form a second conduction mode when the control terminal of the relay is in a second conduction state; the controller 104 may be a processor, which may be composed of a single chip, a PLC or other control chips, where the controller 104 is connected to the control end of the switch circuit 102, and sends a first electrical signal to the switch circuit 102 at a first preset time interval, where the first electrical signal may be a first working current sent to the control end of the switch circuit 102, so as to enable the switch circuit 102 to be in a first power-on state, thereby entering a first conduction mode, and sends a second electrical signal under the condition of obtaining the first target current signal, where the second electrical signal may be a second working current at the control end of the switch circuit 102, so as to enable the switch circuit 102 to be in a second power-on state, thereby entering a second conduction mode; the power supply assembly 103 may include a rechargeable energy storage device such as a battery or super capacitor.

In a possible embodiment, when the current transformer 101 is connected to the controller 104, the controller 104 may directly receive a first target current signal output by the current transformer 101, send the first target current signal to an upper computer, or determine an operating condition of the electrical device according to the first target current signal, for example, determine that the electrical device is in a normal operating state when the first target current signal is within a preset current range, determine that the electrical device has a fault when the first target current signal is not within the preset current range, and send an alarm message.

The current transformer 101 may be one or more induction coils, which may be disposed at any given position on the power supply line of the electrical device, and which may acquire the first target current signal when the electrical device is powered on; the switch circuit 102 may be initially set to a second conducting mode, in which the power supply component 103 is in a charging state and the current transformer may charge the power supply component 103; the controller 104 may be initially set to a sleep state, and the amount of power consumed to maintain the sleep state is minimal, so that power may be supplied by the current transformer 101 through the switching circuit 102 as well.

It should be noted that, the controller 101 may obtain the voltage of the power supply component 103 at a first preset time interval when the power supply component 101 is in the sleep state, since the voltage of the power supply component 103 has a positive correlation with the power amount of the power supply component 103, when the voltage of the power supply component 103 reaches a preset voltage threshold, the power amount of the power supply component 103 is sufficient to support the monitoring of the electrical equipment safety monitoring device, the controller 104 may send a first electrical signal to the switch circuit 102, control the switch circuit 102 to enter a first conducting mode, so that the controller 104 receives the first target current signal obtained by the current transformer 101, and in addition, the controller 104 may further transition from the sleep state to the working state according to a preset instruction when detecting that the voltage of the power supply component 103 reaches the preset voltage threshold, so as to send the first electrical signal to the switch circuit 102, when the controller 104 is in the operating state, the controller 104 is powered by the power supply unit 103.

Adopt above-mentioned device, under the condition that the voltage of power supply module is greater than or equal to the predetermined voltage threshold value in the device, switch over to first conduction mode through control switch circuit every first preset time, can acquire the circular telegram condition of target circuit immediately, greatly improved monitoring efficiency, manpower resources have been saved, and set up this control switch into second conduction mode at all the other times, charge with the target current signal who utilizes to acquire, energy utilization is improved, thus, through control switch circuit's conduction mode, can realize charging for power supply module, and the monitoring of electrical equipment circular telegram condition, can effectively save the cost of labor for the safety input of guarantee electrical equipment, also can effectively improve energy utilization.

Fig. 2 is a block diagram of an electrical equipment safety monitoring device 100 according to the embodiment of the disclosure shown in fig. 1, as shown in fig. 2, and on the basis of fig. 1, the device further includes an overvoltage and overcurrent protection module 105;

one end of the over-voltage and over-current protection module 105 is connected to the output end of the current transformer 101, and the other end is connected to the switch circuit 102, and is configured to disconnect the current transformer 101 from the switch circuit 102 when the first target current signal is greater than a preset limit current.

The overvoltage/overcurrent protection module 105 may be any circuit that performs voltage limiting and current limiting by using a triode in the prior art, and according to the characteristics of the triode, the transmission of the first target current signal is cut off under the condition that the voltage of the first target current signal is greater than the preset limit voltage or the current of the first target current signal is greater than the preset limit current, so as to achieve the effect of voltage limiting and current limiting, and the specific implementation manner may refer to the related description in the prior art.

For example, the overvoltage/overcurrent protection module 105 may be an overcurrent/overvoltage protector, so that when the induced current generated by the current transformer 101 is greater than a preset limit current, a circuit is cut off to prevent a subsequent device from being burnt, and the safety of the electrical equipment safety monitoring device is ensured. For example, the preset limit voltage of the power supply component 103 may be 3.5V, the preset limit current may be 300mA, at the instant when the electrical device connected to the current transformer 101 is powered on, the current transformer 101 may generate a first target current signal with a voltage value greater than 3.5V or a current value greater than 300mA, and the over-voltage and over-current protection module 105 may instantly cut off the circuit of the device to prevent the power supply component 103 from being burnt out if receiving the first target current signal.

Optionally, the apparatus further includes a rectifying and filtering module 106, where one end of the rectifying and filtering module 106 is connected to the overvoltage and overcurrent protection module 105, and the other end of the rectifying and filtering module 106 is connected to the switch circuit 102, and is configured to rectify and filter the first target current signal to obtain a rectified and filtered first target current signal.

The rectifying and filtering module 106 may be an RC rectifying and filtering circuit in the prior art, and performs rectifying and filtering on the first target current signal through a resistor capacitor, or an LC rectifying and filtering circuit in the prior art, and performs rectifying and filtering on the first target current signal through an inductor capacitor, where the implementation of the RC rectifying and filtering circuit and the implementation of the LC rectifying and filtering circuit are common in the prior art, and this disclosure is not repeated herein.

Therefore, the first target current signal is rectified and filtered, the alternating current signal acquired by the current transformer can be converted into a direct current signal, and clutter is filtered, so that the accuracy of monitoring the electrifying condition of the target line is improved.

By adopting the device, the circuit can be cut off when the voltage and current of the first target current signal acquired by the current transformer exceed the preset threshold value, the influence on subsequent devices is avoided, in addition, the first target current signal is rectified and filtered, and the accuracy of the monitoring result is improved.

Fig. 3 is a block diagram of an electrical equipment safety monitoring device 100 according to the embodiment shown in fig. 2 of the present disclosure, as shown in fig. 3, on the basis of fig. 2, the power supply assembly 103 includes a voltage conversion module 1031 and an energy storage module 1032, one end of the voltage conversion module 1031 is connected to the switch circuit 102, the other end of the voltage conversion module 1031 is connected to the energy storage module 1032, and both the voltage conversion module 1031 and the energy storage module 1032 are connected to the controller 104;

the controller 104 is configured to obtain a target voltage of the energy storage module 1032, and send a charging signal to the voltage transformation module 1031 when the target voltage is less than or equal to a preset voltage threshold;

the voltage transformation module 1031, configured to perform voltage transformation on the first target current signal to obtain a second target current signal in response to receiving the charging signal, and send the second target current signal to the energy storage module 1032;

the energy storage module 1032 is configured to perform charging through the second target current signal.

The voltage conversion module 1031 may be a DC-DC conversion circuit, which may be any one of DC voltage conversion circuits composed of multiple switching tubes in the prior art, and the DC voltage conversion circuit changes the input DC voltage into a pulse voltage with a target pulse width or a target pulse frequency by controlling on/off of internal switching tubes according to a preset frequency, so as to achieve the purpose of changing the output voltage, and the specific implementation may refer to related descriptions in the prior art, which are not described herein again; in addition, the energy storage module 1032 may be an energy storage device with a charging function, and may be a storage battery or a super capacitor, for example.

In this way, the voltage transformation module 1031 can transform the first target current signal or the voltage output by the energy storage module 1032 so as to better meet the electricity utilization standard of the energy storage module 1032 or the controller 104, which is beneficial to prolonging the service life of the device.

Fig. 4 is a block diagram of an electrical equipment safety monitoring device 100 according to the embodiment shown in fig. 3 of the present disclosure, as shown in fig. 4, on the basis of fig. 3, the device further includes: a temperature acquisition component 107, the temperature acquisition component 107 being connected to the controller 104 and the power supply component 103,

the temperature acquisition component 107 is configured to acquire temperature information of the electrical device and send the temperature information to the controller 104 when receiving a temperature acquisition signal triggered by the controller 104;

the power supply component 103 is used for supplying power to the temperature acquisition component 107;

the controller 104 is configured to trigger the temperature acquisition signal to the temperature acquisition component 107 every second preset time, and receive the temperature information.

Wherein, the temperature acquisition assembly 107 comprises a temperature acquisition circuit 1071 and a temperature sensor 1072 connected with the temperature acquisition circuit, and the temperature acquisition circuit 1071 is further connected with the controller 104 and the power supply assembly 103;

the temperature sensor 1072 is used for collecting a target simulation temperature of the electrical equipment;

the temperature acquisition circuit 1071 is configured to convert the target analog temperature acquired by the temperature sensor 1072 into a target digital temperature, and send the target digital temperature to the controller 104.

The controller 104 is further configured to send the temperature collecting signal to the temperature collecting circuit 1071 every second preset time when the target voltage is greater than or equal to a preset voltage threshold;

the temperature acquisition circuit 1071 is configured to control the temperature sensor 1072 to acquire a target analog temperature of the electrical device when receiving the temperature acquisition signal.

It should be noted that the temperature acquisition circuit 1071 may be an analog-to-digital signal converter of the prior art, which is used to convert an analog temperature signal into a digital temperature signal.

In one possible embodiment, the temperature acquisition circuit 1071 has an input coupled to the temperature sensor 1072 and an output coupled to the controller 104. The controller 104 may obtain the voltage of the energy storage module 1032 every second preset time when the controller is in the sleep state; the controller 104 controls the voltage transformation module 1031 to cut off power supply to the temperature acquisition circuit 1071 when detecting that the voltage of the energy storage module 1032 is smaller than a preset voltage threshold; the controller 104 sends a discharging signal to the voltage transformation module 1031 when detecting that the voltage of the energy storage module 1032 is greater than or equal to a preset voltage threshold, so that the voltage transformation module 1031 supplies power to the temperature acquisition circuit 1071, and sends the temperature acquisition signal to the temperature acquisition circuit 1071 to receive the target digital temperature sent by the temperature acquisition circuit 1071.

It should be noted that the second preset time and the first preset time may be the same or different, and the disclosure does not limit this.

By adopting the device, under the condition that the voltage of the power supply module in the device is greater than or equal to the preset voltage threshold, the temperature condition of the target position is acquired every second preset time, therefore, the second preset time can be set according to the requirement, so that the temperature condition of the target position can be acquired in time, the acquisition efficiency of the temperature condition is effectively improved, the target position can be appointed according to the requirement, the safety monitoring comprehensiveness and accuracy are improved, and the safety production guarantee is facilitated.

Fig. 5 is a block diagram of an electrical equipment safety monitoring device 100 according to the embodiment shown in fig. 4 of the present disclosure, as shown in fig. 5, and on the basis of fig. 4, the device further includes: an analog-to-digital conversion circuit 108,

one end of the analog-to-digital conversion circuit 108 is connected to the switch circuit 102, and the other end is connected to the controller 104, and is configured to convert the first target current signal into a digital signal when the switch circuit is in the first conduction mode, so as to obtain a target monitoring current value, and send the target monitoring current value to the controller;

the controller 104 is configured to receive and store the target monitoring current value.

Wherein, the analog-to-digital conversion circuit 108 is further connected to the voltage conversion module 1031,

the controller 104 is further configured to send a discharge signal to the voltage transformation module 1031 when the target voltage is greater than a preset voltage threshold;

the voltage conversion module 1031 is configured to, in response to receiving the discharging signal, perform voltage conversion on the first voltage signal output by the energy storage module 1032 to obtain a second voltage signal, and supply power to the temperature acquisition component 1071, the analog-to-digital conversion circuit 108, and the controller 104 through the second voltage signal.

In a possible embodiment, an analog-to-digital conversion circuit 108 is connected between the switch circuit 102 and the controller 104, and when the current transformer 101 is connected to the controller 104, the analog-to-digital conversion circuit 108 is powered by the voltage conversion module 1031 in the power supply module 103, converts the received first target current signal from an analog signal to a digital signal to obtain a target monitoring current value, and sends the target monitoring current value to the controller 104, so that the controller 104 receives and stores the target monitoring current value and uploads the target monitoring current value to an upper computer.

By adopting the device, the analog signal of the first target current signal acquired by the current transformer is converted into the digital signal by the analog-to-digital conversion circuit, so that the data transmission and display are facilitated, and in addition, the controller controls the power supply of the temperature acquisition assembly, the analog-to-digital conversion circuit and the controller by controlling the voltage conversion module, so that the electric energy utilization efficiency of the power supply assembly is improved.

Fig. 6 is a block diagram of an electrical equipment safety monitoring device 100 according to the embodiment shown in fig. 5 of the present disclosure, as shown in fig. 6, on the basis of fig. 5, the device further includes: a humidity module 109 and a display module 110, both the humidity module 109 and the display module 110 are connected to the controller 104,

the humidity module 109 is configured to acquire a target humidity of the electrical device;

the display module 110 is configured to receive and display the target digital temperature, the target monitoring current value, and the target humidity sent by the controller 104.

The humidity module 109 may be an existing humidity sensor, and may be located at a specific location within the environment where the electrical device is located.

In one possible embodiment, the humidity module 109 is also connected to the voltage transformation module 1031. The controller 104 may obtain the voltage of the energy storage module 1032 every third preset time when being in the sleep state; the controller 104 controls the voltage transformation module 1031 to cut off power supply to the humidity module 109 when detecting that the voltage of the energy storage module 1032 is less than a preset voltage threshold; the controller 104 sends a discharging signal to the voltage transformation module 1031 when detecting that the voltage of the energy storage module 1032 is greater than or equal to a preset voltage threshold, and controls the voltage transformation module 1031 to supply power to the humidity module 109, so that the humidity module 109 collects the humidity of the environment where the electrical device is located, and receives the humidity information sent by the humidity module 109.

Adopt above-mentioned device, can acquire electrical equipment's target humidity through the humidity module to prevent the electric leakage problem that the humidity is too high to cause, in addition, through display module, this target digit temperature of more audio-visual show, target monitoring current value and target humidity improve user experience.

The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details in the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. An electrical equipment safety monitoring device, characterized in that the device comprises: a current transformer, a switching circuit, a power supply assembly and a controller,

the acquisition end of the current transformer is used for being connected with electrical equipment, and the output end of the current transformer is connected with the switch circuit and used for carrying out current transformation on the specified current in the electrical equipment to obtain a first target current signal;

the switching circuit is further connected with the power supply assembly and the controller, and is used for entering a first conduction mode to connect the current transformer with the controller when receiving a first electric signal triggered by the controller, and entering a second conduction mode to transmit the first target current signal output by the current transformer to the power supply assembly when receiving a second electric signal triggered by the controller;

the power supply component is connected with the switch circuit and the controller and is used for charging by utilizing the first target current signal;

the controller is used for acquiring a target voltage of the power supply assembly, sending a first electric signal to the switch circuit at intervals of a first preset time under the condition that the target voltage is greater than or equal to a preset voltage threshold, and sending a second electric signal to the switch circuit under the condition that the target voltage is less than the preset voltage threshold.

2. The device of claim 1, wherein the power supply assembly comprises a voltage conversion module and an energy storage module, wherein one end of the voltage conversion module is connected with the switch circuit, the other end of the voltage conversion module is connected with the energy storage module, and the voltage conversion module and the energy storage module are both connected with the controller;

the controller is used for acquiring a target voltage of the energy storage module and sending a charging signal to the voltage conversion module under the condition that the target voltage is less than or equal to a preset voltage threshold;

the voltage conversion module is used for responding to the received charging signal, performing voltage conversion on the first target current signal to obtain a second target current signal, and sending the second target current signal to the energy storage module;

the energy storage module is used for charging through the second target current signal.

3. The apparatus of claim 2, further comprising: a temperature acquisition component connected with the controller and the power supply component,

the temperature acquisition assembly is used for acquiring temperature information of the electrical equipment and sending the temperature information to the controller under the condition of receiving a temperature acquisition signal triggered by the controller;

the power supply assembly is used for supplying power to the temperature acquisition assembly;

and the controller is used for triggering the temperature acquisition signal to the temperature acquisition assembly every second preset time and receiving the temperature information.

4. The device of claim 3, wherein the temperature acquisition component comprises a temperature acquisition circuit, and a temperature sensor connected to the temperature acquisition circuit, the temperature acquisition circuit further connected to the controller and the power supply component;

the temperature sensor is used for acquiring a target simulation temperature of the electrical equipment;

the temperature acquisition circuit is used for converting the target analog temperature acquired by the temperature sensor into a target digital temperature and sending the target digital temperature to the controller.

5. The apparatus of claim 4, wherein the controller,

the temperature acquisition circuit is also used for sending the temperature acquisition signal to the temperature acquisition circuit every second preset time under the condition that the target voltage is greater than or equal to a preset voltage threshold;

the temperature acquisition circuit is used for controlling the temperature sensor to acquire the target simulation temperature of the electrical equipment under the condition of receiving the temperature acquisition signal.

6. The apparatus of claim 1, wherein the first target current signal is an analog signal, the apparatus further comprising: an analog-to-digital conversion circuit for converting an analog signal into a digital signal,

one end of the analog-to-digital conversion circuit is connected with the switch circuit, and the other end of the analog-to-digital conversion circuit is connected with the controller and is used for converting the first target current signal into a digital signal under the condition that the switch circuit is in a first conduction mode so as to obtain a target monitoring current value and sending the target monitoring current value to the controller;

and the controller is used for receiving and storing the target monitoring current value.

7. The device of claim 1, further comprising an over-voltage and over-current protection module, wherein one end of the over-voltage and over-current protection module is connected with the output end of the current transformer, and the other end of the over-voltage and over-current protection module is connected with the switch circuit,

the overvoltage and overcurrent protection module is used for disconnecting the current transformer from the switch circuit under the condition that the first target current signal is larger than a preset limit current.

8. The device of claim 7, further comprising a rectifying and filtering module, wherein one end of the rectifying and filtering module is connected to the over-voltage and over-current protection module, and the other end of the rectifying and filtering module is connected to the switching circuit,

the rectification filtering module is configured to rectify and filter the first target current signal to obtain a rectified and filtered first target current signal.

9. The apparatus of claim 1, further comprising: and the transmission module is connected with the controller and used for transmitting the target digital temperature and the target monitoring current value of the electrical equipment to an upper computer.

10. The device of any one of claims 1-9, further comprising a humidity module and a display module, both of which are connected to the controller,

the humidity module is used for acquiring the target humidity of the electrical equipment;

and the display module is used for receiving and displaying the target digital temperature, the target monitoring current value and the target humidity sent by the controller.

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