CN114002546A - Real-time online monitoring device for multifunctional external environment of terminal box of transformer substation - Google Patents
Real-time online monitoring device for multifunctional external environment of terminal box of transformer substation Download PDFInfo
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Abstract
The invention provides a multifunctional external environment real-time online monitoring device for a terminal box of a transformer substation. The temperature and humidity sensor module collects temperature and humidity through a temperature sensor and a humidity sensor and forms temperature and humidity signals to be uploaded; the animal induction module detects the invading moving object through the microwave induction sensor and forms a detection signal to be uploaded; the single chip microcomputer receives and processes the temperature and humidity signals, and generates temperature and humidity alarm information when the temperature is smaller than a preset temperature threshold or the humidity is larger than a preset humidity threshold; receiving and analyzing the detection signal, and generating animal invasion alarm information when the volume of the moving object is smaller than a preset volume threshold value; the wireless communication module transmits the alarm information to a remote data center to realize alarm. The invention has simple structure, saves time and labor, and can monitor the influence of three external environments, namely temperature, humidity and small animals, on the normal operation of the terminal box in real time on line.
Description
Technical Field
The invention relates to the technical field of fault monitoring of a terminal box of a transformer substation, in particular to a multifunctional external environment real-time online monitoring device for the terminal box of the transformer substation.
Background
The transformer substation is an intermediate link for connecting a power line and a user, is an important component in a power system, and directly influences the safe and economic operation of the whole power system. The terminal boxes in the transformer substation are important components for realizing primary and secondary loops, a large number of electronic components and various electrical equipment are contained in the box bodies and are responsible for conversion and control tasks of electric energy, and the running state of the equipment which runs well has very important significance for high-quality power supply.
In the actual operation process of the transformer substation terminal box, the external influence of three aspects of temperature, humidity and small animals is mainly exerted. In regions with abundant rainwater or regions with large day-night temperature difference due to climate, environment, working conditions and the like, condensation, water drops and even water accumulation and the like are easy to occur in the equipment, and under most conditions, the condensation can slowly form water accumulation and stays in the equipment for a long time, so that great hidden danger can be caused to the safe operation of electrical equipment. In addition, the transformer substation is generally located in a remote place, and various small animals such as wild cats, mice, birds and the like frequently move along with the change of seasons, so that a certain threat is caused to the stable operation of the transformer substation. For example, a small animal such as a mouse bites the secondary circuit cable, which may cause a short circuit in the signal circuit to send an alarm signal, or may cause a circuit breaker control circuit to open or short circuit, causing a malfunction or failure of the circuit breaker, resulting in a serious grid accident.
At present, the number of terminal boxes in a transformer substation is large. The measure of prevention humiture in current terminal box relies on the heating plate of normal heat to carry out temperature and humidity control on the one hand, and on the other hand relies on artifical periodic inspection to investigate hidden danger. However, the heating plate only has a certain regulating effect on the temperature, the fault occurrence rate is high, and once the heating plate is abnormal in function or the terminal box leaks, the possibility that hidden dangers cannot be found timely exists in manual periodic inspection. In addition, the measures for preventing the small animals in the existing terminal box depend on blocking the cable inlet by fire-proof mud manually on one hand, and on preventing the small animals from running and biting into a secondary cable or electrical equipment by means of a mouse sticking plate placed at the inner corner of the cabinet on the other hand. Therefore, most of the existing methods rely on the responsibility of power transformation maintenance personnel to prevent the external environment from influencing the normal operation of the terminal box, and have strong passivity and high time consumption and cost.
Therefore, based on the above influences on normal operation of the terminal box by the three external environments of temperature, humidity and small animals, it is necessary to provide a multifunctional external environment real-time online monitoring device for the terminal box of the transformer substation for real-time monitoring.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide a multifunctional external environment real-time online monitoring device for a transformer substation terminal box, which is simple in structure, time-saving and labor-saving, and can monitor the influence of three external environments, namely temperature, humidity and small animals, on the normal operation of the terminal box in an online and real-time manner.
In order to solve the technical problems, the embodiment of the invention provides a multifunctional external environment real-time online monitoring device for a transformer substation terminal box, which is used for the transformer substation terminal box and comprises a single chip microcomputer, a temperature and humidity sensor module, an animal induction module and a wireless communication module, wherein the temperature and humidity sensor module, the animal induction module and the wireless communication module are connected with the single chip microcomputer; wherein,
the temperature and humidity sensor module comprises a temperature sensor and a humidity sensor and is used for acquiring the temperature and the humidity in the terminal box of the transformer substation through the temperature sensor and the humidity sensor, forming corresponding temperature signals and humidity signals and uploading the temperature signals and the humidity signals to the single chip microcomputer;
the animal induction module is a microwave induction sensor and is used for detecting a moving object invading into a preset dangerous area of the transformer substation terminal box through the reflection characteristic and the frequency change of microwave induction of the microwave induction sensor, and forming a corresponding detection signal and uploading the detection signal to the single chip microcomputer;
the single chip microcomputer is used for receiving and processing the temperature signal and the humidity signal uploaded by the temperature and humidity sensor module, and generating temperature and humidity alarm information when the temperature obtained by processing is smaller than a preset temperature threshold value or the humidity obtained by processing is larger than a preset humidity threshold value; receiving and analyzing the detection signal uploaded by the animal induction module, and generating animal invasion alarm information when the volume of the moving object obtained by comparison and analysis is smaller than a preset volume threshold value;
the wireless communication module is connected with a remote data center and used for forwarding the temperature and humidity alarm information and the animal invasion alarm information generated by the single chip microcomputer to the remote data center so as to realize alarming for an administrator.
Wherein, still include: the dehumidifier control module is connected with the single chip microcomputer; wherein,
the dehumidifier control module is also connected with a dehumidifier and a temperature heater which are preset in the transformer substation terminal box, and is used for generating a heating control instruction and sending the heating control instruction to the temperature heater after receiving a heating instruction which is generated when the temperature obtained by comparison and processing of the single chip microcomputer is smaller than the preset temperature threshold value so as to control the temperature heater to start to heat and heat the transformer substation terminal box; or after a dehumidification instruction generated when the humidity obtained by comparison and processing of the single chip microcomputer is greater than the preset humidity threshold value is received, a dehumidification control instruction is generated and sent to the dehumidifier to control the dehumidifier to start condensation and dehumidification, and water molecules in the air of the transformer substation terminal box are condensed and removed from the box body to prevent condensation from being generated in the transformer substation terminal box.
Wherein, still include: the acousto-optic driving module is connected with the single chip microcomputer; wherein,
the acousto-optic driving module is also connected with a sound wave output load preset outside the transformer substation terminal box and used for generating an acousto-optic driving control command and issuing the acousto-optic driving control command to the sound wave output load after receiving an animal expelling command generated when the moving object volume obtained by comparing and analyzing the singlechip is smaller than the preset volume threshold value so as to control the sound wave output load to start a power amplification function and carry out sound expelling on the moving object outside the transformer substation terminal box.
Wherein, still include: the key display module is connected with the singlechip; wherein,
the key display module is used for displaying temperature, humidity and temperature and humidity alarm information obtained by the single chip microcomputer processing, and displaying moving object volume and animal invasion information obtained by the single chip microcomputer analyzing; and receiving the operation modified by any one instruction of the temperature-raising instruction, the dehumidifying instruction and the animal expelling instruction generated by the single chip microcomputer and responded by a user.
Wherein, still include: the clock module is connected with the singlechip; the clock module is used for providing clock service for the single chip microcomputer.
Wherein, still include: the data storage module is connected with the single chip microcomputer; and the data storage module is used for storing data and instructions obtained by processing and analyzing the single chip microcomputer.
Wherein, still include: the power supply module is connected with the single chip microcomputer; the power module is used for supplying power to the single chip microcomputer and modules except the single chip microcomputer.
The single-chip microcomputer adopts an STC12C5A60S2 series single-chip microcomputer, and the series single-chip microcomputer is provided with a reset circuit, PMW output and 8 paths of 10-bit AD analog-to-digital conversion; the model of the power supply module is SPX29302T 5; the wireless communication module adopts the model of SIM 900A.
The temperature sensor is of a TMP102 model, and the height of a chip is 0.58 mm; the humidity sensor is DHT 11.
The microwave sensor is HT7610A, and has a clock frequency of 16 kHz.
The embodiment of the invention has the following beneficial effects:
1. the temperature and the humidity in the terminal box of the transformer substation are acquired through the temperature sensor and the humidity sensor, the invading moving object is detected through the microwave induction sensor, the temperature, the humidity and the volume of the moving object are analyzed in the single chip microcomputer to determine whether temperature and humidity alarm information and/or animal invasion alarm information are generated or not, and when the temperature and humidity alarm information and/or animal invasion alarm information are generated, the temperature and humidity alarm information and the animal invasion alarm information are reported to a manager of a remote data center for alarming, so that the influence of three external environments, namely the temperature, the humidity and the small animals, on the normal operation of the terminal box can be monitored in real time on line;
2. the invention also controls the temperature heater to start to heat the terminal box of the transformer substation when the temperature in the terminal box of the transformer substation is too low (namely the temperature is less than a preset temperature threshold), and controls the dehumidifier to start condensation and dehumidification to condense and remove water molecules in the air of the terminal box of the transformer substation to the outside of the terminal box body to prevent condensation in the terminal box of the transformer substation when the humidity in the terminal box of the transformer substation is too high (namely the humidity is greater than the preset humidity threshold);
3. when an invading moving object exists outside the terminal box of the transformer substation (namely the volume of the moving object is smaller than a preset volume threshold), the sound wave output load outside the terminal box of the transformer substation is controlled by the sound and light driving module to start the power amplification function so as to expel the sound of the moving object;
4. the invention adopts a modular structure design, so that the whole device has a simple structure and is time-saving and labor-saving to operate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a multifunctional external environment real-time online monitoring device for a terminal box of a transformer substation according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a multifunctional external environment real-time online monitoring device for a terminal box of a transformer substation according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a multifunctional real-time online monitoring device for an external environment of a terminal box of a transformer substation, which is provided in a terminal box of a transformer substation (not shown in the figure) in a first embodiment of the present invention, includes a single chip microcomputer 1, and a temperature and humidity sensor module 2, an animal induction module 3, and a wireless communication module 4, which are connected to the single chip microcomputer 1; wherein,
the temperature and humidity sensor module 2 comprises a temperature sensor and a humidity sensor and is used for acquiring the temperature and the humidity in the terminal box of the transformer substation through the temperature sensor and the humidity sensor, forming corresponding temperature signals and humidity signals and uploading the temperature signals and the humidity signals to the single chip microcomputer 1; the temperature sensor is of a TMP102 model, the chip height is 0.58mm, the working current in a sleep mode is very small and is about 1 microampere, and the working current in a full-speed running mode is only 10 microamperes, so that the power consumption is very low; the humidity sensor is of a type DHT11, DHT11 has the function of simultaneously testing temperature and humidity, but only the function of measuring humidity is used in the design because the temperature measuring range is narrow;
the animal induction module 3 is a microwave induction sensor and is used for detecting a moving object invading into a preset dangerous area (such as 0-10 m) of the terminal box of the transformer substation through the reflection characteristic and frequency change of microwave induction of the microwave induction sensor, and forming a corresponding detection signal and uploading the detection signal to the singlechip 1; the type adopted by the microwave sensor is HT7610A, the clock frequency is 16kHz, the transmitting power of the microwave induction sensor can be adjusted in practical use, the electric field coverage can be adjusted within 10m, the microwave induction sensor is stable in operation and high in reliability, generally has no false alarm, is incomparable with an alarm circuit consisting of infrared rays, ultrasonic waves and pyroelectric elements and a conventional microwave circuit, is very suitable for being used in a transformer substation, and has the advantages of hidden installation, large monitoring range, high detection sensitivity and the like;
the single chip microcomputer 1 is used for receiving and processing the temperature signal and the humidity signal uploaded by the temperature and humidity sensor module 2, and generating temperature and humidity alarm information when the temperature obtained by processing is smaller than a preset temperature threshold (such as 5 ℃) or the humidity obtained by processing is larger than a preset humidity threshold (such as 50%) through comparison; receiving and analyzing the detection signal uploaded by the animal induction module 3, and generating animal invasion alarm information when the volume of the moving object obtained by comparison and analysis is smaller than a preset volume threshold value; the single-chip microcomputer adopts STC12C5A60S2 series single-chip microcomputers, has the advantages of high speed, low power consumption, super-strong anti-interference and the like, and meanwhile, the series single-chip microcomputers are provided with reset circuits, PMW output and 8 paths of 10-bit AD analog-to-digital conversion are realized, and the anti-interference capability is excellent;
the wireless communication module 4 is connected with the remote data center and used for forwarding the temperature and humidity alarm information and the animal invasion alarm information generated by the single chip microcomputer 1 to the remote data center so as to realize alarming for an administrator. The wireless communication module adopts the type SIM900A, belongs to a dual-frequency GSM/GPRS module, adopts a packaging form, has very stable performance and high performance-to-cost ratio, and can provide services such as data and the like.
It can be understood that, in the first embodiment of the present invention, the real-time online temperature and humidity monitoring function implemented by the multifunctional real-time external environment online monitoring device for a terminal box of a transformer substation is implemented by collecting temperature and humidity signals in an environment by a temperature and humidity sensor installed in the terminal box of the transformer substation and outputting a standard voltage of 0-5V, and then processing the signals into voltage signals that can be recognized by the single chip microcomputer 1, and the single chip microcomputer 1 reads and determines whether the temperature and humidity value inside the terminal box exceeds a set threshold (e.g., a predetermined temperature threshold of 5 degrees or a predetermined humidity threshold of 50%) to determine whether to generate temperature and humidity alarm information and forward the generated temperature and humidity alarm information to a remote data center, thereby implementing alarm. Meanwhile, the realized real-time online monitoring function of small animal invasion mainly depends on a microwave induction sensor, the approach of a moving object is detected by utilizing the reflection characteristic of microwave induction in frequency change, the microwave induction belongs to an active detection mode and can reach about 10 meters, the invading object can be induced by 360 degrees, when the moving object is detected in a preset dangerous area (such as 0 m-10 m), the acquired signal is processed and then transmitted to a single chip microcomputer 1 to judge whether the moving object enters a worker, the invading animal belongs to which type, if the invading animal is detected, the invading animal is generated and forwarded to a far-end data center, and the alarm is realized.
In addition, because the volume difference of the moving object is large, the microwave sensing module 3 only requires to alarm the animals entering the dangerous area, so that a volume judgment program for the moving object needs to be arranged in the single chip microcomputer 1, and the situation that the device sends alarm information when no moving object exists in the detection range or the operation and maintenance personnel enter the sensing area to cause false alarm of the device is avoided.
As shown in fig. 2, the multifunctional real-time online monitoring device for an external environment of a terminal box of a transformer substation provided in the second embodiment of the present invention is used in a terminal box of a transformer substation (not shown), and includes a single chip microcomputer 1, and a temperature and humidity sensor module 2, an animal induction module 3, a wireless communication module 4, a dehumidifier control module 5, an acousto-optic driving module 6, a key display module 7, a clock module 8, a data storage module 9, and a power supply module 10, which are all connected to the single chip microcomputer 1; wherein,
the temperature and humidity sensor module 2 comprises a temperature sensor and a humidity sensor and is used for acquiring the temperature and the humidity in the terminal box of the transformer substation through the temperature sensor and the humidity sensor, forming corresponding temperature signals and humidity signals and uploading the temperature signals and the humidity signals to the single chip microcomputer 1; the temperature sensor is of a TMP102 model, the chip height is 0.58mm, the working current in a sleep mode is very small and is about 1 microampere, and the working current in a full-speed running mode is only 10 microamperes, so that the power consumption is very low; the humidity sensor is of a type DHT11, DHT11 has the function of simultaneously testing temperature and humidity, but only the function of measuring humidity is used in the design because the temperature measuring range is narrow;
the animal induction module 3 is a microwave induction sensor and is used for detecting a moving object invading into a preset dangerous area (such as 0-10 m) of the terminal box of the transformer substation through the reflection characteristic and frequency change of microwave induction of the microwave induction sensor, and forming a corresponding detection signal and uploading the detection signal to the singlechip 1; the type adopted by the microwave sensor is HT7610A, the clock frequency is 16kHz, the transmitting power of the microwave induction sensor can be adjusted in practical use, the electric field coverage can be adjusted within 10m, the microwave induction sensor is stable in operation and high in reliability, generally has no false alarm, is incomparable with an alarm circuit consisting of infrared rays, ultrasonic waves and pyroelectric elements and a conventional microwave circuit, is very suitable for being used in a transformer substation, and has the advantages of hidden installation, large monitoring range, high detection sensitivity and the like;
the single chip microcomputer 1 is used for receiving and processing the temperature signal and the humidity signal uploaded by the temperature and humidity sensor module 2, and generating temperature and humidity alarm information and a corresponding temperature rise instruction or a corresponding dehumidification instruction when the temperature obtained by processing is smaller than a preset temperature threshold (such as 5 ℃) or the humidity obtained by processing is larger than a preset humidity threshold (such as 50%) through comparison; receiving and analyzing the detection signal uploaded by the animal induction module 3, and generating animal intrusion alarm information and an animal expulsion instruction when the volume of the moving object obtained by comparison and analysis is smaller than a preset volume threshold value; the single-chip microcomputer adopts STC12C5A60S2 series single-chip microcomputers, has the advantages of high speed, low power consumption, super-strong anti-interference and the like, and meanwhile, the series single-chip microcomputers are provided with reset circuits, PMW output and 8 paths of 10-bit AD analog-to-digital conversion are realized, and the anti-interference capability is excellent;
the wireless communication module 4 is connected with the remote data center and used for forwarding the temperature and humidity alarm information and the animal invasion alarm information generated by the single chip microcomputer 1 to the remote data center so as to realize alarming for an administrator. The wireless communication module adopts the type SIM900A, belongs to a dual-frequency GSM/GPRS module, adopts a packaging form, has very stable performance and high performance-to-cost ratio, and can provide services such as data and the like
The dehumidifier control module 5 is also connected with a dehumidifier (not shown) and a temperature heater (not shown) preset in the substation terminal box, and is used for generating a heating control instruction and issuing the heating control instruction to the temperature heater so as to control the temperature heater to start to heat and heat the substation terminal box after receiving a heating instruction generated when the temperature obtained by comparison of the single chip microcomputer 1 and processing is less than a preset temperature threshold (such as 5 ℃); or after a dehumidification command generated when the humidity obtained by comparison processing of the single chip microcomputer 1 is greater than a preset humidity threshold value (such as 50%) is received, a dehumidification control command is generated and sent to the dehumidifier to control the dehumidifier to start condensation and dehumidification, and water molecules in the air of the terminal box of the transformer substation are condensed and removed from the box body to prevent condensation from being generated in the terminal box of the transformer substation;
the acousto-optic driving module 6 is also connected with a preset acoustic wave output load (not shown) outside the terminal box of the transformer substation, and is used for generating an acousto-optic driving control command and issuing the acousto-optic driving control command to the acoustic wave output load after receiving an animal expelling command generated when the volume of the moving object obtained by comparison and analysis of the singlechip 1 is smaller than a preset volume threshold value so as to control the acoustic wave output load to start a power amplification function to expel the sound of the moving object outside the terminal box of the transformer substation; it should be noted that if it is detected that the small animal is still close to the wireless communication module 4, the acousto-optic driving module 6 may further enhance the effect by increasing the sound amplitude output by the sound wave output load, and transmit the information of the small animal to the remote data center;
the key display module 7 is used for displaying temperature, humidity and temperature and humidity alarm information obtained by the single chip microcomputer 1, and displaying moving object volume and animal invasion information obtained by the single chip microcomputer 1; receiving the operation of the user for modifying any one instruction of the temperature-raising instruction, the dehumidifying instruction and the animal expelling instruction generated by the singlechip 1 and responding; it should be noted that the key setting not only can set the relevant operating parameters on the spot, but also can set the remote data center to send the remote instruction to set the relevant parameters, which mainly include a dehumidification starting value, a dehumidification return value, a heating starting value, a heating return value, and the like;
the clock module 8 is used for providing clock service for the singlechip 1;
the data storage module 9 is used for storing data and instructions obtained by processing and analyzing the singlechip 1; it should be noted that the data is synchronously stored in the data storage module 9, and the stored data can also be uploaded to a remote data center through the wireless communication module 4;
the power module 10 is used for supplying power to the singlechip 1 and modules except the singlechip 1; the power module 10 is powered by +5V output by an external switching power supply, the dc voltage is supplied to the chip by the voltage required by the power regulation chip generation system, and the model adopted is SPX29302T 5.
It can be understood that, in the second embodiment of the present invention, the real-time online temperature and humidity monitoring function implemented by the multifunctional real-time external environment online monitoring device for a terminal box of a transformer substation is implemented by collecting temperature and humidity signals in an environment by a temperature and humidity sensor installed in the terminal box of the transformer substation and outputting a standard voltage of 0-5V, and then processing the signals into voltage signals that can be recognized by the single chip microcomputer 1, and the single chip microcomputer 1 reads and determines whether the temperature and humidity value inside the terminal box exceeds a set threshold (e.g., a predetermined temperature threshold of 5 degrees or a predetermined humidity threshold of 50%) to determine whether to generate temperature and humidity alarm information and forward the generated temperature and humidity alarm information to a remote data center, thereby implementing alarm.
Meanwhile, the multifunctional external environment real-time online monitoring device for the transformer substation terminal box in the second embodiment of the invention also realizes real-time online temperature and humidity control functions including condensation dehumidification, environment heating, remote telemetering, remote telecommand, remote control, fault detection, parameter setting and other details. In the condensation dehumidification, when the environmental humidity exceeds a preset humidity threshold (such as 50%), the dehumidifier is controlled by the dehumidifier control module 5 to automatically start a condensation dehumidification function, and water molecules in the air of the terminal box are condensed and removed from the box body, so that condensation in the box body is prevented; when the internal temperature of the box body is lower than the set minimum starting temperature (namely the preset temperature threshold value is 5 ℃), the dehumidification machine control module 5 controls the temperature heater to automatically start the heating function to heat; the remote three-remote function mainly has a remote communication function, and can upload the operation data of the dehumidification terminal to a remote data center, and the remote data center can send a remote instruction to control the start and stop of the dehumidification terminal; the fault detection mainly automatically detects the conditions of high temperature alarm, high humidity alarm, temperature sensor fault, humidity sensor fault, intelligent dehumidification terminal fault and the like in the box body, not only can display fault information on site, but also can upload the fault information to a remote data center; the parameter setting not only can be carried out on the spot to set relevant operation parameters, but also can be carried out on the remote data center to send remote instructions to set relevant parameters, and the parameters mainly comprise a dehumidification starting value, a dehumidification return value, a heating starting value, a heating return value and the like.
The small animal invasion real-time online monitoring function realized by the multifunctional external environment real-time online monitoring device of the transformer substation terminal box in the second embodiment of the invention mainly depends on a microwave induction sensor, the approach of a moving object is detected by utilizing the reflection characteristic of microwave induction in frequency change, the microwave induction belongs to an active detection mode and can reach about 10 meters, the invasion object can be induced at 360 degrees, when the moving object is detected to be in a preset dangerous area (such as 0 m-10 m), the acquired signal is processed and then transmitted to the single chip microcomputer 1 to judge whether the moving object enters a working person or not, the invading animal belongs to which type, and if the moving object is detected to be invaded by the animal, animal invasion alarm information is generated and transmitted to a remote data center to realize alarm.
Meanwhile, the real-time online expelling function of the small animal invasion realized by the multifunctional external environment real-time online monitoring device of the transformer substation terminal box in the second embodiment of the invention mainly depends on the acousto-optic driving module 6 to control the acoustic output load to start the power amplification function to expel the sound of the moving object outside the transformer substation terminal box. If the small animal is detected to be still close to the wireless communication module 4, the acousto-optic driving module 6 can further enhance the effect by increasing the sound amplitude output by the sound wave output load, and simultaneously transmit the information of the small animal to the remote data center.
It should be noted that the animal sensing module 3 and the acousto-optic driving module 6 mainly prevent possible interference from the outside, and an interference elimination procedure needs to be set. In addition, because the volume difference of the moving object is large, the microwave sensing module 3 only requires to alarm the animals entering the dangerous area, so that a volume judgment program for the moving object needs to be arranged in the single chip microcomputer 1, and the situation that the device sends alarm information when no moving object exists in the detection range or the operation and maintenance personnel enter the sensing area to cause false alarm of the device is avoided.
The embodiment of the invention has the following beneficial effects:
1. the temperature and the humidity in the terminal box of the transformer substation are acquired through the temperature sensor and the humidity sensor, the invading moving object is detected through the microwave induction sensor, the temperature, the humidity and the volume of the moving object are analyzed in the single chip microcomputer to determine whether temperature and humidity alarm information and/or animal invasion alarm information are generated or not, and when the temperature and humidity alarm information and/or animal invasion alarm information are generated, the temperature and humidity alarm information and the animal invasion alarm information are reported to a manager of a remote data center for alarming, so that the influence of three external environments, namely the temperature, the humidity and the small animals, on the normal operation of the terminal box can be monitored in real time on line;
2. the invention also controls the temperature heater to start to heat the terminal box of the transformer substation when the temperature in the terminal box of the transformer substation is too low (namely the temperature is less than a preset temperature threshold), and controls the dehumidifier to start condensation and dehumidification to condense and remove water molecules in the air of the terminal box of the transformer substation to the outside of the terminal box body to prevent condensation in the terminal box of the transformer substation when the humidity in the terminal box of the transformer substation is too high (namely the humidity is greater than the preset humidity threshold);
3. when an invading moving object exists outside the terminal box of the transformer substation (namely the volume of the moving object is smaller than a preset volume threshold), the sound wave output load outside the terminal box of the transformer substation is controlled by the sound and light driving module to start the power amplification function so as to expel the sound of the moving object;
4. the invention adopts a modular structure design, so that the whole device has a simple structure and is time-saving and labor-saving to operate.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. A multifunctional external environment real-time online monitoring device for a transformer substation terminal box is used in the transformer substation terminal box and is characterized by comprising a single chip microcomputer, and a temperature and humidity sensor module, an animal induction module and a wireless communication module which are connected with the single chip microcomputer; wherein,
the temperature and humidity sensor module comprises a temperature sensor and a humidity sensor and is used for acquiring the temperature and the humidity in the terminal box of the transformer substation through the temperature sensor and the humidity sensor, forming corresponding temperature signals and humidity signals and uploading the temperature signals and the humidity signals to the single chip microcomputer;
the animal induction module is a microwave induction sensor and is used for detecting a moving object invading into a preset dangerous area of the transformer substation terminal box through the reflection characteristic and the frequency change of microwave induction of the microwave induction sensor, and forming a corresponding detection signal and uploading the detection signal to the single chip microcomputer;
the single chip microcomputer is used for receiving and processing the temperature signal and the humidity signal uploaded by the temperature and humidity sensor module, and generating temperature and humidity alarm information when the temperature obtained by processing is smaller than a preset temperature threshold value or the humidity obtained by processing is larger than a preset humidity threshold value; receiving and analyzing the detection signal uploaded by the animal induction module, and generating animal invasion alarm information when the volume of the moving object obtained by comparison and analysis is smaller than a preset volume threshold value;
the wireless communication module is connected with a remote data center and used for forwarding the temperature and humidity alarm information and the animal invasion alarm information generated by the single chip microcomputer to the remote data center so as to realize alarming for an administrator.
2. The multifunctional external environment real-time online monitoring device for the substation terminal box according to claim 1, further comprising: the dehumidifier control module is connected with the single chip microcomputer; wherein,
the dehumidifier control module is also connected with a dehumidifier and a temperature heater which are preset in the transformer substation terminal box, and is used for generating a heating control instruction and sending the heating control instruction to the temperature heater after receiving a heating instruction which is generated when the temperature obtained by comparison and processing of the single chip microcomputer is smaller than the preset temperature threshold value so as to control the temperature heater to start to heat and heat the transformer substation terminal box; or after a dehumidification instruction generated when the humidity obtained by comparison and processing of the single chip microcomputer is greater than the preset humidity threshold value is received, a dehumidification control instruction is generated and sent to the dehumidifier to control the dehumidifier to start condensation and dehumidification, and water molecules in the air of the transformer substation terminal box are condensed and removed from the box body to prevent condensation from being generated in the transformer substation terminal box.
3. The multifunctional external environment real-time online monitoring device for the substation terminal box according to claim 2, further comprising: the acousto-optic driving module is connected with the single chip microcomputer; wherein,
the acousto-optic driving module is also connected with a sound wave output load preset outside the transformer substation terminal box and used for generating an acousto-optic driving control command and issuing the acousto-optic driving control command to the sound wave output load after receiving an animal expelling command generated when the moving object volume obtained by comparing and analyzing the singlechip is smaller than the preset volume threshold value so as to control the sound wave output load to start a power amplification function and carry out sound expelling on the moving object outside the transformer substation terminal box.
4. The multifunctional external environment real-time online monitoring device for the substation terminal box according to claim 3, further comprising: the key display module is connected with the singlechip; wherein,
the key display module is used for displaying temperature, humidity and temperature and humidity alarm information obtained by the single chip microcomputer processing, and displaying moving object volume and animal invasion information obtained by the single chip microcomputer analyzing; and receiving the operation modified by any one instruction of the temperature-raising instruction, the dehumidifying instruction and the animal expelling instruction generated by the single chip microcomputer and responded by a user.
5. The multifunctional external environment real-time online monitoring device for the substation terminal box according to claim 4, further comprising: the clock module is connected with the singlechip; the clock module is used for providing clock service for the single chip microcomputer.
6. The multifunctional external environment real-time online monitoring device for the substation terminal box according to claim 5, further comprising: the data storage module is connected with the single chip microcomputer; and the data storage module is used for storing data and instructions obtained by processing and analyzing the single chip microcomputer.
7. The multifunctional external environment real-time online monitoring device for the substation terminal box according to claim 6, further comprising: the power supply module is connected with the single chip microcomputer; the power module is used for supplying power to the single chip microcomputer and modules except the single chip microcomputer.
8. The multifunctional external environment real-time online monitoring device of the substation terminal box according to claim 7, wherein the single chip microcomputer is an STC12C5a60S2 series single chip microcomputer, and the series single chip microcomputer is provided with a reset circuit, a PMW output and 8-way 10-bit AD analog-to-digital conversion; the model of the power supply module is SPX29302T 5; the wireless communication module adopts the model of SIM 900A.
9. The multifunctional external environment real-time online monitoring device of the substation terminal box according to claim 8, wherein the temperature sensor is of a model TMP102, and the chip height is 0.58 mm; the humidity sensor is DHT 11.
10. The multifunctional external environment real-time online monitoring device of the substation terminal box according to claim 9, wherein the microwave sensor is of a type HT7610A, and has a clock frequency of 16 kHz.
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Application publication date: 20220201 |