CN217521653U - Electrical safety monitoring and alarm system - Google Patents
Electrical safety monitoring and alarm system Download PDFInfo
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- CN217521653U CN217521653U CN202220682565.2U CN202220682565U CN217521653U CN 217521653 U CN217521653 U CN 217521653U CN 202220682565 U CN202220682565 U CN 202220682565U CN 217521653 U CN217521653 U CN 217521653U
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Abstract
The application relates to an electrical safety monitoring and alarming system, which comprises a photoelectric detection module, a processing module, an amplification module, a processing control module and an alarming module. The photoelectric detection module is connected with a power supply and used for detecting fire light and discharge generated in the power distribution equipment and outputting a weak current type photoelectric detection signal; the amplifying module is connected with the photoelectric detection module and used for amplifying the photoelectric detection signal and outputting a detection voltage; the processing control module is connected with the amplifying module, is used for converting the detection voltage into a light intensity value, and is used for outputting an alarm signal when the light intensity value reaches a light intensity preset value; the alarm module is connected with the processing control module and used for giving an alarm when receiving the alarm signal. This application can remind the staff to overhaul in time through reporting to the police for the staff can in time find the problem when distribution equipment takes place to discharge, leak electricity, and then reduces the probability that distribution equipment takes place large-scale accident.
Description
Technical Field
The application relates to the field of electrical detection, in particular to an electrical safety monitoring and alarming system.
Background
The electrical safety detection technology is mainly applied to an electric power system, and can detect and monitor the running state of the electric power system during the running period of the electric power system so as to remind workers of overhauling and maintaining the electric power system in time when potential hidden dangers exist in the electric power system.
In general, an electric power system includes a power generation system, a power transformation system, and a power distribution system, wherein the power distribution system is used for further distributing electric energy to each electric device. No matter any link of the power distribution system, the power transformation system and the power generation system breaks down, the final electrical equipment cannot work, and therefore it is very necessary to arrange an electrical safety monitoring system in the power generation system, the power transformation system and the power distribution system.
However, the power distribution system is usually disposed in a power distribution room, and workers are not allowed to enter and exit at will, so when some power distribution devices in the power distribution system discharge, leak electricity, and even electric sparks, the devices are not easy to find and process in time, and further, fire or explosion accidents occur in the power distribution system, which causes serious loss.
SUMMERY OF THE UTILITY MODEL
In order to reduce the probability of large-scale accidents of a power distribution system, the application provides an electrical safety monitoring and alarming system.
The application provides an electrical safety monitoring and alarm system adopts following technical scheme:
an electrical safety monitoring and alarming system comprises a photoelectric detection module, a processing module, an amplification module, a conversion module, a control module and an alarming module.
The photoelectric detection module is connected with a power supply and used for detecting fire light and discharge generated in the power distribution equipment and outputting weak photoelectric detection signals;
the amplifying module is connected with the photoelectric detection module and is used for amplifying the photoelectric detection signal;
the conversion module is connected with the amplification module and is used for converting the amplified photoelectric detection signal into a light intensity value and outputting an intensity detection signal;
the control module is connected with the conversion module and is used for outputting an alarm signal when the light intensity value reflected by the received intensity detection signal reaches a light intensity preset value;
the alarm module is connected with the control module and used for giving an alarm when receiving the alarm signal.
By adopting the technical scheme, when the power distribution equipment generates fire or discharges, the photoelectric detection module can detect the fire and discharge and generate weak current. The arranged amplifying module can amplify the generated current and convert the current into corresponding detection voltage. The control module collects detection voltage and converts the detection voltage into a corresponding light intensity value to be compared with a light intensity preset value, and when the light intensity value exceeds the light intensity preset value, the control alarm module gives an alarm to remind a worker to overhaul in time, so that the worker can find problems in time when the power distribution equipment discharges and leaks electricity, and the probability of large-scale accidents of the power distribution equipment is reduced.
Optionally, a voltage reduction module is disposed between the photoelectric detection module and the power supply, and the voltage reduction module is configured to reduce a voltage of the power supply and output a voltage with a specified amplitude.
By adopting the technical scheme, the voltage detection module can work under the working voltage.
Optionally, a voltage stabilizing filter module is disposed between the photoelectric detection module and the voltage reducing module and between the voltage reducing module and the power supply, and the voltage stabilizing filter module is configured to filter fluctuation interference of the power supply.
By adopting the technical scheme, the photoelectric detection module can generate weak photoelectric detection signals when detecting discharge or fire, so that when the power supply fluctuates, the fluctuation can interfere the photoelectric detection signals, misjudgment is caused, and the detection accuracy is reduced. Therefore, the voltage stabilizing filter module is required to filter the fluctuation interference of the power supply.
Optionally, a voltage stabilizing module is disposed between the photoelectric detection module and the power supply, and the voltage stabilizing module is configured to stabilize the voltage of the power supply to a specified amplitude.
By adopting the technical scheme, the photoelectric detection module can work normally.
Optionally, a filtering protection module is further disposed between the power supply and the voltage stabilizing module, and the filtering protection module is configured to filter fluctuation interference of the power supply.
By adopting the technical scheme, the photoelectric detection module can generate weak photoelectric detection signals when detecting discharge or fire, so that when the power supply fluctuates, the fluctuation can interfere the photoelectric detection signals, misjudgment is caused, and the detection accuracy is reduced. Therefore, a filtering protection module is needed to filter out the fluctuation interference of the power supply.
Optionally, the output end of the voltage stabilizing and filtering module is connected to a voltage following module, and the voltage following module is connected to a line connecting the amplifying module and the photoelectric detection module.
By adopting the technical scheme, the influence of the power supply, the voltage stabilizing and filtering module and the voltage reducing module on the photoelectric detection signal value output by the photoelectric detection module can be reduced.
Optionally, the processing control unit is an MCU single chip, and the MCU single chip is connected to the power supply.
Optionally, the optical intensity monitoring device further comprises a communication module, wherein the communication module is connected with the amplification module, and is used for receiving the optical intensity value and the alarm signal and transmitting the optical intensity value and the alarm signal to a terminal device.
Through adopting above-mentioned technical scheme, the staff can know current distribution equipment's running state on terminal equipment, is convenient for carry out remote monitoring to distribution equipment's running state.
Optionally, the system further comprises a host, wherein the host is provided with a communication interface, and is configured to receive the light intensity value and the alarm signal, and further configured to form and display an image according to the light intensity value at different times.
By adopting the technical scheme, the host can obtain the light intensity values at different moments and form the images of the light intensity values-time for display, so that the working personnel can predict according to the variation trend of the light intensity values and overhaul in advance, and the power distribution equipment can be better prevented from breaking down.
Optionally, the photoelectric detection module is a gallium oxide photoelectric sensor.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when fire or discharge occurs in the power distribution equipment, the photoelectric detection module can detect the fire or the discharge and generate weak current. The amplifying module can amplify the generated current and convert the current into detection voltage. The control module converts the detection voltage into a light intensity value, compares the light intensity value with a preset light intensity value, and controls the alarm module to give an alarm to remind a worker to overhaul in time when the light intensity value exceeds the preset light intensity value, so that the worker can find problems in time when the power distribution equipment is discharged and leaks electricity, and the probability of large-scale accidents of the power distribution equipment is reduced;
2. the voltage-stabilizing filtering module can effectively filter the interference of power supply fluctuation on the detection of discharge and fire light of the photoelectric detection module;
3. the communication module and the host computer that set up for the staff can remote monitoring and can predict according to the trend of light intensity value variation, overhauls in advance, can prevent better that distribution equipment from breaking down.
Drawings
Fig. 1 is a system diagram of an electrical safety monitoring and warning system according to an embodiment of the present application.
Fig. 2 is a schematic circuit diagram of the voltage stabilizing and filtering module, the voltage following module, the photodetection module and the amplifying module according to the embodiment of the present application.
Fig. 3 is a schematic circuit diagram of a power supply, a voltage stabilizing and filtering module, and a voltage reducing module according to an embodiment of the present application.
FIG. 4 is a circuit schematic of a process control module according to an embodiment of the present application.
Fig. 5 is a schematic circuit diagram of a communication module according to an embodiment of the present application.
Description of reference numerals: 1. a power source; 2. a voltage stabilizing and filtering module; 3. a voltage reduction module; 4. a voltage following module; 5. a photoelectric detection module; 6. an amplifying module; 7. an alarm module; 8. a processing control module; 9. a communication module; 10. and (4) a host.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to fig. 1-5 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The embodiment of the application discloses electrical safety monitoring and alarm system. Referring to fig. 1, the electrical safety monitoring and warning system includes a photoelectric detection module 5, an amplification module 6, a processing control module 8, a warning module 7, a communication module 9 and a host 10. Through the phenomenon of discharging and the flare light that produce to distribution equipment under running state detect to the intensity according to discharging or flare light is reported to the police, makes the staff can know distribution equipment's running state and latent hidden danger, and then in time overhauls the possibility that takes place to explode large-scale accidents such as lamp in order to reduce distribution equipment.
The photoelectric detection module 5 is connected with the power supply 1 and used for detecting fire and discharge phenomena generated in the power distribution equipment and outputting weak current type photoelectric detection signals.
It is understood that the discharge and leakage of electricity and fire generated during operation of the power distribution equipment include ultraviolet rays. Therefore, whether the power distribution equipment has discharge or fire phenomenon can be detected by detecting the ultraviolet rays. Specifically, in the present application, the photodetection module 5 is preferably a gallium oxide photosensor, which is mainly used for detecting ultraviolet rays with a wavelength in the range of 200nm to 280nm, and is capable of generating pA-level current when detecting ultraviolet rays in the range of 200nm to 280 nm. Therefore, when a discharge phenomenon or a flare occurs in the power distribution equipment, the gallium oxide photosensor can detect the discharge phenomenon or the flare and output a current-type photodetection signal.
Referring to fig. 1 and 2, further, in order to enable the photodetection module 5 to operate at its rated voltage, a voltage reduction module 3 is disposed on a line connecting the photodetection module 5 and the power supply 1. The voltage reduction module 3 is used for stabilizing the voltage of the voltage to a specified amplitude value so as to provide a working voltage for the photoelectric detection module 5. Wherein, preferably, the power source 1 is 12V voltage, and the specified amplitude is 5V. The voltage reduction module 3 is a low dropout regulator with the model number SY8120B 1.
Since the photoelectric detection module 5 generates pA-level current when detecting the discharge and fire phenomena generated by the power distribution equipment, it is easily influenced by external factors to change the magnitude of the output current. Specifically, when the power supply 1 fluctuates, the fluctuation of the power supply 1 not only affects the stability of the working voltage output by the voltage-reducing module 3, but also changes the current of the photoelectric detection signal output by the photoelectric detection module 5, thereby causing the accuracy of the detection result to be low. Therefore, the voltage stabilizing and filtering module 2 is arranged on a line connecting the voltage reducing module 3 and the power supply 1 and a line connecting the photoelectric detection module 5 and the voltage reducing module 3.
Referring to fig. 2 and 3, the two voltage stabilizing and filtering modules 2 are both used for filtering fluctuation interference of the power supply 1 to ensure accuracy of a detection result of the photoelectric detection module 5. The voltage stabilizing and filtering module 2 comprises a voltage stabilizing unit and a filtering unit, wherein the voltage stabilizing unit can select an electronic device with a voltage stabilizing function, such as a voltage stabilizing diode or a voltage stabilizing chip. The voltage stabilizing and filtering module 2 is a conventional technical means for those skilled in the relevant field, and therefore, will not be described herein too much.
Referring to fig. 1 and 2, it can be understood that the amplifying module 6 is connected to the photodetecting module 5, and the voltage stabilizing filter module 2 connected to the photodetecting module 5 is connected to a line connecting the amplifying module 6 and the photodetecting module 5, so that the power supply 1, the voltage stabilizing filter module 2, and the voltage reducing module 3 can reduce the load carrying capacity of the amplifying module 6, and can also affect the magnitude of the current value of the photodetecting signal received by the amplifying module 6.
Therefore, the output end of the voltage stabilizing and filtering module 2 connected with the photoelectric detection module 5 is also connected with a voltage following module 4. The voltage following module 4 is connected with a connecting line of the amplifying module 6 and the photoelectric detection module 5. The voltage follower block 4 has the same output voltage as the input voltage, and has a large internal resistance, so that the influence on the magnitude of the current value of the photodetection signal received by the amplifier block 6 can be reduced. Specifically, the voltage follower module 4 in this application is composed of an operational amplifier OP1 and its peripheral circuits. Of course, the triode and the peripheral circuit can be selected to realize the voltage following function.
The amplifying module 6 is used for amplifying the photoelectric detection signal and outputting a detection voltage. The amplification module 6 includes an operational amplifier OP2 to convert the input current value into a corresponding voltage value and amplify it. The amplification factor of the operational amplifier OP2 depends mainly on the feedback resistance. In order to make the output detection voltage within a preset range, a feedback resistor with a proper resistance value needs to be selected. The preset range is preferably 0-2.5V. Of course, the amplifying module 6 may also adopt other circuits with amplifying function. The amplification module 6 is conventional to those skilled in the relevant art and will not be described in detail herein.
Referring to fig. 1, 2 and 4, the processing control module 8 is connected to the amplifying module 6, and is configured to convert the detection voltage into a light intensity value, and output an alarm signal when the light intensity value reaches a preset light intensity value.
Preferably, the processing control module 8 in the present application is an MCU single chip microcomputer with model STC8G1K 08. Specifically, the output end of the No. 8 pin voltage reduction module 3 of the MCU singlechip is connected with the voltage with the appointed amplitude. And a No. 15 pin of the MCU singlechip is connected with the output end of the operational amplifier OP2 to collect detection voltage converted by the current type photoelectric detection signal. The MCU singlechip can be equivalent to the corresponding light intensity value with the detection voltage, and compares the light intensity value with a light intensity preset value. When the light intensity value reaches a preset light intensity value, the MCU singlechip outputs an alarm signal; when the light intensity value is lower than the light intensity preset value, the MCU singlechip does not output an alarm signal. The preset value of the light intensity is a preset value and can be specifically adjusted according to actual needs.
Referring to fig. 1 and 4, the alarm module 7 is connected to the processing control module 8, that is, connected to an output pin of the MCU singlechip, and configured to alarm when receiving an alarm signal. The alarm module 7 can be selected from a buzzer, an audible and visual alarm and other alarms.
Referring to fig. 1, 4 and 5, the communication module 9 is respectively connected with the power supply 1 and the MCU singlechip. Specifically, the communication module 9 is connected with the 18 th pin, the 19 th pin and the 20 th pin of the MCU singlechip, and is configured to receive a light intensity value and an alarm signal, which are equivalent to a detection voltage, and transmit the light intensity value and the alarm signal to the terminal device, so that a worker can remotely monitor the condition of discharge or flare generated during operation of the power distribution device, and know the operation status of the power distribution device in time. In the present application, the communication module 9 is preferably a communication chip of model MAX 485.
Referring to fig. 1, a host 10 is connected to a communication module 9 through a communication interface. Wherein, the communication interface is arranged on the host computer 10. The host 10 is used for receiving the light intensity value and the alarm signal, and forming and displaying an image according to the light intensity value at different moments.
In a specific example, the worker can know the discharge phenomenon and the fire generated when the current power distribution equipment operates by monitoring the display interface of the host computer 10. Furthermore, according to the trend of the light intensity value at each moment, the worker can also judge the trend of the light intensity value in advance so as to overhaul the power distribution equipment in advance, and further reduce the possibility of large-scale accidents such as explosion of the power distribution equipment.
The implementation principle of the electrical safety monitoring and alarming system in the embodiment of the application is as follows: the photoelectric detection module 5 is used for detecting the discharge phenomenon and the ultraviolet rays in the fire light generated by the power distribution equipment, and further detecting the discharge phenomenon and the fire light generated by the power distribution equipment. And determining the corresponding light intensity value according to the current value reflected by the photoelectric detection signal. Through comparing light intensity value and light intensity default to control alarm module 7 and report to the police, and then provide the staff and overhaul, make the possible distribution equipment that large-scale accident such as distribution equipment took place to explode probably reduce such as large-scale accident.
The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the application in any way, and any features disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Claims (8)
1. The utility model provides an electrical safety monitoring and alarm system which characterized in that: comprises a photoelectric detection module (5), a processing module, an amplification module (6), a processing control module (8) and an alarm module (7);
the photoelectric detection module (5) is connected with the power supply (1) and is used for detecting fire and discharge generated in the power distribution equipment and outputting weak current type photoelectric detection signals;
the amplifying module (6) is connected with the photoelectric detection module (5) and is used for amplifying the photoelectric detection signal and outputting a detection voltage;
the processing control module (8) is connected with the amplifying module (6) and is used for converting the detection voltage into a light intensity value and outputting an alarm signal when the light intensity value reaches a light intensity preset value;
the alarm module (7) is connected with the processing control module (8) and is used for giving an alarm when receiving the alarm signal.
2. The electrical safety monitoring and warning system of claim 1, wherein: a voltage reduction module (3) is arranged between the photoelectric detection module (5) and the power supply (1), and the voltage reduction module (3) is used for reducing the voltage of the power supply (1) and outputting the voltage with the specified amplitude.
3. The electrical safety monitoring and warning system of claim 2, wherein: the photoelectric detection module (5) and the voltage reduction module (3) and the power supply (1) are both provided with a voltage stabilization filtering module (2), and the voltage stabilization filtering module (2) is used for filtering fluctuation interference of the power supply (1).
4. The electrical safety monitoring and warning system of claim 3, wherein: the output end of the voltage stabilizing and filtering module (2) is connected with a voltage following module (4), and the voltage following module (4) is connected with a circuit connected with the amplifying module (6) and the photoelectric detection module (5).
5. The electrical safety monitoring and warning system of claim 4, wherein: the processing control module is an MCU singlechip which is connected with the power supply (1).
6. The electrical safety monitoring and warning system of claim 5, wherein: the communication module is connected with the amplification module (6) and used for receiving the light intensity value and the alarm signal and transmitting the light intensity value and the alarm signal to terminal equipment.
7. The electrical safety monitoring and warning system of claim 6, wherein: the light intensity monitoring system is characterized by further comprising a host (10), wherein the host (10) is provided with a communication interface and is used for receiving the light intensity values and the alarm signals and forming and displaying images according to the light intensity values at different moments.
8. The electrical safety monitoring and warning system of claim 7, wherein: the photoelectric detection module (5) is a gallium oxide photoelectric sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220682565.2U CN217521653U (en) | 2022-03-25 | 2022-03-25 | Electrical safety monitoring and alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220682565.2U CN217521653U (en) | 2022-03-25 | 2022-03-25 | Electrical safety monitoring and alarm system |
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| Publication Number | Publication Date |
|---|---|
| CN217521653U true CN217521653U (en) | 2022-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220682565.2U Active CN217521653U (en) | 2022-03-25 | 2022-03-25 | Electrical safety monitoring and alarm system |
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| CN (1) | CN217521653U (en) |
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