CN110968011A - Cable pit humiture monitoring system - Google Patents
Cable pit humiture monitoring system Download PDFInfo
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- CN110968011A CN110968011A CN201911346285.3A CN201911346285A CN110968011A CN 110968011 A CN110968011 A CN 110968011A CN 201911346285 A CN201911346285 A CN 201911346285A CN 110968011 A CN110968011 A CN 110968011A
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- humidity sensor
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
Abstract
The invention discloses a cable trench temperature and humidity monitoring system, and relates to the technical field of power monitoring; the intelligent terminal comprises an intelligent terminal, a communication device, a controller, a temperature and humidity sensor, an information acquisition module, an information processing module, an information transmission module and an information display module, wherein the temperature and humidity sensor, the information acquisition module, the information processing module and the information display module are positioned in a cable duct; the information processing module is used for receiving the temperature data and the humidity data sent by the temperature and humidity sensor and sending the temperature data and the humidity data to the communication device by the controller; the intelligent monitoring device realizes monitoring of the temperature and the humidity of the cable duct through the intelligent terminal, the communication device, the controller, the temperature and humidity sensor, the information acquisition module, the information processing module, the information transmission module, the information display module and the like.
Description
Technical Field
The invention relates to the technical field of power monitoring, in particular to a temperature and humidity monitoring system for a cable duct.
Background
The cable trench mainly adopts a linear temperature-sensing fire detector, namely a temperature-sensing cable, to give an alarm, the temperature-sensing cable is laid with the cable in equal length, the working principle is that when the temperature of the cable rises, the resistance value of the adjacent temperature-sensing cable changes, the circuit current changes accordingly, and an alarm signal is started.
The temperature sensing cable can only act when the detection temperature is higher than a set threshold value, the specific temperature value of the cable cannot be detected when the alarm is given, and the cable trench is not provided with a direct temperature measuring type electrical fire monitoring device, so that the temperature change curve of the cable cannot be monitored in real time for effective prevention.
The alarm temperature of the temperature sensing cable is fixed, upgrading and transformation cannot be carried out, capacity increasing and transformation of the monitoring device cannot be carried out according to actual requirements, and the temperature sensing cable is extremely unchanged in installation and daily maintenance.
Because the power grid is large in scale and the number of cables is large, the temperature sensing cable to be installed is long in length, high in manufacturing cost and high in cost. Meanwhile, the cable trench is positioned under the ground, the operation environment is poor, and the temperature sensing cable is very easy to damage due to the working principle of the temperature sensing cable and the operation environment.
At present, alarm information and fault information of the cable trench monitoring device are transmitted to a monitor and a regulation and control center of a guard room through a cable or a lead, cannot be transmitted to other mobile terminal devices for display, and lacks flexible data display and information searching means.
Problems with the prior art and considerations:
how to solve the technical problem of monitoring cable pit humiture.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cable trench temperature and humidity monitoring system which realizes the monitoring of the temperature and the humidity of a cable trench through an intelligent terminal, a communication device, a controller, a temperature and humidity sensor, an information acquisition module, an information processing module, an information transmission module, an information display module and the like.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a cable trench temperature and humidity monitoring system comprises an intelligent terminal, a communication device, a controller, a temperature and humidity sensor, an information acquisition module, an information processing module, an information transmission module and an information display module, wherein the temperature and humidity sensor, the information acquisition module, the information processing module, the information transmission module and the information display module are positioned in a cable trench, the temperature and humidity sensor is connected with the controller and is in one-way communication, the controller is connected with the communication device and is in two-way communication, the communication device is connected with the intelligent terminal and is in,
the information acquisition module is used for the temperature and humidity sensor to send the acquired temperature data and humidity data to the controller;
the information processing module is used for receiving the temperature data and the humidity data sent by the temperature and humidity sensor and sending the temperature data and the humidity data to the communication device by the controller;
the information transmission module is used for receiving the temperature data and the humidity data sent by the controller and sending the temperature data and the humidity data to the intelligent terminal by the communication device;
and the information display module is used for receiving and displaying the temperature data and the humidity data sent by the communication device by the intelligent terminal.
The further technical scheme is as follows: the controller is a single chip microcomputer.
The further technical scheme is as follows: the intelligent terminal is a computer terminal or a mobile terminal.
The further technical scheme is as follows: the communication device is in wired connection or wireless connection with the intelligent terminal.
The further technical scheme is as follows: the communication device is a wireless communication device.
The further technical scheme is as follows: and the output end of the temperature and humidity sensor is electrically connected with the input end of the controller.
The further technical scheme is as follows: and a pull-up resistor is electrically connected between the output end of the temperature and humidity sensor and the VCC end.
The further technical scheme is as follows: the pull-up resistor is a resistor with the resistance value of 4.7k omega.
The further technical scheme is as follows: and the output end of the temperature and humidity sensor is electrically connected with an anti-interference circuit.
The further technical scheme is as follows: the anti-interference circuit is composed of a resistor R5 and a capacitor C4, the resistor R5 is electrically connected between the output end of the temperature and humidity sensor and the input end of the controller, and the capacitor C4 is electrically connected between the output end of the temperature and humidity sensor and the GND end.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
a cable trench temperature and humidity monitoring system comprises an intelligent terminal, a communication device, a controller, a temperature and humidity sensor, an information acquisition module, an information processing module, an information transmission module and an information display module, wherein the temperature and humidity sensor, the information acquisition module, the information transmission module and the information display module are positioned in a cable trench; the information processing module is used for receiving the temperature data and the humidity data sent by the temperature and humidity sensor and sending the temperature data and the humidity data to the communication device by the controller; the information transmission module is used for receiving the temperature data and the humidity data sent by the controller and sending the temperature data and the humidity data to the intelligent terminal by the communication device; and the information display module is used for receiving and displaying the temperature data and the humidity data sent by the communication device by the intelligent terminal. The intelligent monitoring device realizes monitoring of the temperature and the humidity of the cable duct through the intelligent terminal, the communication device, the controller, the temperature and humidity sensor, the information acquisition module, the information processing module, the information transmission module, the information display module and the like.
See detailed description of the preferred embodiments.
Drawings
FIG. 1 is a schematic block diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic block diagram of embodiment 2 of the present invention;
FIG. 3 is a schematic block diagram of embodiment 3 of the present invention;
FIG. 4 is a schematic block diagram of embodiment 4 of the present invention;
fig. 5 is a circuit schematic diagram of embodiment 3 of the present invention;
FIG. 6 is a schematic circuit diagram of the single-chip microcomputer according to the present invention;
FIG. 7 is a schematic circuit diagram of the temperature and humidity sensor interface of the present invention;
FIG. 8 is a schematic circuit diagram of the temperature and humidity sensor of the present invention;
FIG. 9 is a flow chart of the present invention;
FIG. 10 is a first screen shot of a process of using the present invention;
FIG. 11 is a second screen shot of the use of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited to the specific embodiments disclosed below.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.
Example 1:
as shown in fig. 1, the invention discloses a cable trench temperature and humidity monitoring system, which comprises an intelligent terminal, a communication device, a controller, a temperature and humidity sensor, an information acquisition module, an information processing module, an information transmission module and an information display module, wherein the temperature and humidity sensor, the information acquisition module, the information processing module, the information transmission module and the information display module are located in a cable trench, the temperature and humidity sensor is connected with the controller and is in one-way communication, the controller is connected with the communication device and is in two-way communication, and the communication device is connected with the intelligent.
And the information acquisition module is used for the temperature and humidity sensor to send the acquired temperature data and humidity data to the controller.
And the information processing module is used for receiving the temperature data and the humidity data sent by the temperature and humidity sensor and sending the temperature data and the humidity data to the communication device by the controller.
And the information transmission module is used for receiving the temperature data and the humidity data sent by the controller and sending the temperature data and the humidity data to the intelligent terminal by the communication device.
And the information display module is used for receiving and displaying the temperature data and the humidity data sent by the communication device by the intelligent terminal.
The controller is a single chip microcomputer, and the model is STM 32.
The intelligent terminal is a desktop computer terminal.
The communication device is in wired connection with the intelligent terminal.
The type of the temperature and humidity sensor is AM2301, and the output end of the temperature and humidity sensor is electrically connected with the input end of the controller. And a pull-up resistor is electrically connected between the output end of the temperature and humidity sensor and the VCC end, and the pull-up resistor is a resistor with the resistance value of 4.7k omega. The output end of the temperature and humidity sensor is electrically connected with an anti-interference circuit, the anti-interference circuit is composed of a resistor R5 and a capacitor C4, the resistor R5 is electrically connected between the output end of the temperature and humidity sensor and the input end of the controller, and the capacitor C4 is electrically connected between the output end of the temperature and humidity sensor and a GND end.
The communication device, the computer terminal and the corresponding communication connection technology are not described in detail herein for the prior art.
Example 2:
As shown in fig. 2, the invention discloses a cable trench temperature and humidity monitoring system, which comprises an intelligent terminal, a communication device, a controller, a temperature and humidity sensor, an information acquisition module, an information processing module, an information transmission module and an information display module, wherein the temperature and humidity sensor, the information acquisition module, the information processing module, the information transmission module and the information display module are located in a cable trench, the temperature and humidity sensor is connected with the controller and is in one-way communication, the controller is connected with the communication device and is in two-way communication, and the communication device is connected with the intelligent.
And the information acquisition module is used for the temperature and humidity sensor to send the acquired temperature data and humidity data to the controller.
And the information processing module is used for receiving the temperature data and the humidity data sent by the temperature and humidity sensor and sending the temperature data and the humidity data to the communication device by the controller.
And the information transmission module is used for receiving the temperature data and the humidity data sent by the controller and sending the temperature data and the humidity data to the intelligent terminal by the communication device.
And the information display module is used for receiving and displaying the temperature data and the humidity data sent by the communication device by the intelligent terminal.
The controller is a single chip microcomputer, and the model is STM 32.
The intelligent terminal is a notebook computer terminal.
The communication device is in wired connection with the intelligent terminal.
The type of the temperature and humidity sensor is AM2301, and the output end of the temperature and humidity sensor is electrically connected with the input end of the controller. And a pull-up resistor is electrically connected between the output end of the temperature and humidity sensor and the VCC end, and the pull-up resistor is a resistor with the resistance value of 4.7k omega. The output end of the temperature and humidity sensor is electrically connected with an anti-interference circuit, the anti-interference circuit is composed of a resistor R5 and a capacitor C4, the resistor R5 is electrically connected between the output end of the temperature and humidity sensor and the input end of the controller, and the capacitor C4 is electrically connected between the output end of the temperature and humidity sensor and a GND end.
The communication device, the computer terminal and the corresponding communication connection technology are not described in detail herein for the prior art.
Example 3:
As shown in fig. 3, the invention discloses a cable trench temperature and humidity monitoring system, which comprises an intelligent terminal, a communication device, a controller, a temperature and humidity sensor, an information acquisition module, an information processing module, an information transmission module and an information display module, wherein the temperature and humidity sensor, the information acquisition module, the information processing module, the information transmission module and the information display module are located in a cable trench, the temperature and humidity sensor is connected with the controller and is in one-way communication, the controller is connected with the communication device and is in two-way communication, and the communication device is connected with the intelligent.
And the information acquisition module is used for the temperature and humidity sensor to send the acquired temperature data and humidity data to the controller.
And the information processing module is used for receiving the temperature data and the humidity data sent by the temperature and humidity sensor and sending the temperature data and the humidity data to the communication device by the controller.
And the information transmission module is used for receiving the temperature data and the humidity data sent by the controller and sending the temperature data and the humidity data to the intelligent terminal by the communication device.
And the information display module is used for receiving and displaying the temperature data and the humidity data sent by the communication device by the intelligent terminal.
The controller is a single chip microcomputer, and the model is STM 32.
The intelligent terminal is an intelligent mobile phone terminal.
The communication device is a wireless communication device, and the model is ESP 8266.
The communication device is in wireless connection with the intelligent terminal.
The type of the temperature and humidity sensor is AM2301, and the output end of the temperature and humidity sensor is electrically connected with the input end of the controller. And a pull-up resistor is electrically connected between the output end of the temperature and humidity sensor and the VCC end, and the pull-up resistor is a resistor with the resistance value of 4.7k omega. The output end of the temperature and humidity sensor is electrically connected with an anti-interference circuit, the anti-interference circuit is composed of a resistor R5 and a capacitor C4, the resistor R5 is electrically connected between the output end of the temperature and humidity sensor and the input end of the controller, and the capacitor C4 is electrically connected between the output end of the temperature and humidity sensor and a GND end.
The wireless communication device and the mobile terminal themselves and the corresponding communication connection technology are not described in detail herein for the prior art.
Example 4:
As shown in fig. 4, the invention discloses a cable trench temperature and humidity monitoring system, which comprises an intelligent terminal, a communication device, a controller, a temperature and humidity sensor, an information acquisition module, an information processing module, an information transmission module and an information display module, wherein the temperature and humidity sensor, the information acquisition module, the information processing module, the information transmission module and the information display module are located in a cable trench, the temperature and humidity sensor is connected with the controller and is in one-way communication, the controller is connected with the communication device and is in two-way communication, and the communication device is connected with the intelligent.
And the information acquisition module is used for the temperature and humidity sensor to send the acquired temperature data and humidity data to the controller.
And the information processing module is used for receiving the temperature data and the humidity data sent by the temperature and humidity sensor and sending the temperature data and the humidity data to the communication device by the controller.
And the information transmission module is used for receiving the temperature data and the humidity data sent by the controller and sending the temperature data and the humidity data to the intelligent terminal by the communication device.
And the information display module is used for receiving and displaying the temperature data and the humidity data sent by the communication device by the intelligent terminal.
The controller is a single chip microcomputer, and the model is STM 32.
The intelligent terminal is a tablet computer terminal.
The communication device is a wireless communication device, and the model is ESP 8266.
The communication device is in wireless connection with the intelligent terminal.
The type of the temperature and humidity sensor is AM2301, and the output end of the temperature and humidity sensor is electrically connected with the input end of the controller. And a pull-up resistor is electrically connected between the output end of the temperature and humidity sensor and the VCC end, and the pull-up resistor is a resistor with the resistance value of 4.7k omega. The output end of the temperature and humidity sensor is electrically connected with an anti-interference circuit, the anti-interference circuit is composed of a resistor R5 and a capacitor C4, the resistor R5 is electrically connected between the output end of the temperature and humidity sensor and the input end of the controller, and the capacitor C4 is electrically connected between the output end of the temperature and humidity sensor and a GND end.
The wireless communication device and the mobile terminal themselves and the corresponding communication connection technology are not described in detail herein for the prior art.
After the application runs secretly for a period of time, the feedback of field technicians has the advantages that:
1. and specific temperature values of the cable are obtained through non-contact measurement, and temperature trend analysis is carried out according to an actual temperature curve, so that the occurrence of faults is early predicted.
2. The humidity value of the cable trench is measured in real time while the temperature of the cable is measured, so that the temperature and humidity change curves of the cable under the same time axis are generated, and the working state and the operating environment of the cable are reliably reflected.
3. The temperature and humidity monitoring information can be transmitted to a PC terminal and a mobile terminal for display, such as a computer in a guard room, a mobile phone of an operator on duty and the like, the transmission means is flexible and various, and the data query is convenient and fast.
4. The system display interface is simple and clear, and the staff can conveniently look up data and print data.
Description of the drawings:
as shown in fig. 5, the I/O interface PA0 of the single chip microcomputer is connected to the first serial data interface SDA of the temperature and humidity sensor, the I/O interface PA1 of the single chip microcomputer is connected to the second serial data interface SDA of the temperature and humidity sensor, the I/O interface PA2 of the single chip microcomputer is connected to the third serial data interface SDA of the temperature and humidity sensor, and so on until the I/O interface PB0 of the single chip microcomputer is connected to an individual serial data interface SDA of the temperature and humidity sensor; the VCC interface of singlechip STM32 links to each other with wireless communication device ESP 8266's VCC interface, and the GND interface of singlechip links to each other with wireless communication device's GND interface, and the RXD interface of singlechip STM32 links to each other with wireless communication device ESP 8266's TXD interface, and the TXD interface of singlechip STM32 links to each other with wireless communication device ESP 8266's RXD interface.
As shown in fig. 6 and 7, the detailed connection line between the single chip microcomputer STM32 and the temperature and humidity sensor AM2301 is as follows: the I/O interface of the singlechip STM32 comprises interfaces PA 1-PA 15, interfaces PB 1-PB 15 and interfaces PC 1-PC 15, can be connected with a serial data interface SDA of a temperature and humidity sensor AM2301, can be connected with 45 temperature and humidity sensors to the maximum extent, and meets the monitoring requirement of a cable duct; a power supply VDD interface of the single chip microcomputer STM32 is connected with a plurality of sub-interfaces after being packaged, and a power supply VDD interface of the temperature and humidity sensor AM2301 is connected with the packaged sub-interfaces, so that the same power supply voltage of the single chip microcomputer STM32 and the temperature and humidity sensor AM2301 is ensured; similarly, the grounding GND interface of the single chip microcomputer STM32 is connected with a plurality of sub-interfaces after being packaged, and the grounding GND interface of the temperature and humidity sensor AM2301 is connected with the packaging sub-interfaces, so that the grounding potentials of the single chip microcomputer STM32 and the temperature and humidity sensor AM2301 are the same.
As shown in fig. 8, the temperature and humidity sensor AM2301 circuit parameters are set as follows: because the length of the sensor connecting wire is possibly more than 30m, in order to improve the measurement reliability and stability, the pull-up resistance Rp of the temperature and humidity sensor AM2301 is 4.7k omega; in order to ensure the supply voltage of the sensor, prevent the insufficient voltage of the sensor caused by excessive line voltage division, prolong the service life of the sensor as much as possible, simultaneously consider that the supply voltage range of an ESP8266 of the wireless communication device is 3.3V-5.2V, and comprehensively consider that the supply voltage Vcc is 5.0V; the transformer substation has strong electromagnetic interference, and in order to ensure the accuracy of monitoring signals, an anti-interference circuit consisting of R5 and C4 is added to a sensor circuit, wherein the effect is good when a resistor R5 takes the value of 350 omega and a capacitor C4 takes the value of 102pF after verification; capacitor C2 is selected to be 106 pF.
The wireless communication device ESP8266 can be connected with the Internet through a router, so that the mobile phone and the computer can remotely control equipment through the Internet, and can also be used as a hot spot, so that the mobile phone or the computer can directly communicate with the module, and the wireless control of a local area network is realized. Instruction debugging of the wireless communication device is therefore required.
As shown in fig. 9, the debugging process: start-ESP 8266 initialize-enabling AP mode i.e. not enabling a return to the parameters and IP address in initialize-set AP mode-setting login account and password-initiating intelligent connection.
Developing computer software of the upper computer: after receiving the data packet sent by the wireless communication device ESP8266, the computer obtains real-time temperature and humidity data of the cable duct by analyzing the data packet by using a Tcp control protocol with high reliability, develops the data in a visual studio by using C # language and calls a winform function design software display interface. The staff can enter the display interface by clicking the software icon.
Mobile phone software development of the upper computer: after receiving the data packet sent by the wireless communication device ESP8266, the mobile phone uses a Tcp control protocol with high reliability to analyze the data packet to obtain real-time temperature and humidity data of a cable duct, and performs android software development in Java language in an eclipse development environment to generate an APK file which can be opened on the mobile phone. The staff can enter the display interface by running the APK file.
As shown in fig. 10, the staff member can instruct the debugging of the set account password to log in through the wireless communication device, and can select connection or disconnection; acquiring real-time monitored temperature and humidity data by selecting the type of the sensor; when the temperature or the humidity exceeds a set threshold value, the system can simply and automatically judge and alarm; the historical data of the selected sensor measurements is obtained by clicking on the historical curve button.
As shown in fig. 11, the data curve is printed by the print button.
Temperature and humidity sensor AM2301 installation: because the length of the cable in the transformer substation is too long, for example, a 220kV outdoor transformer substation is taken as an example, the length of a cable trench is dozens of meters less, and more, the length of the cable trench can reach hundreds of meters, and therefore, the temperature and humidity sensor AM2301 is installed only at sensitive positions where faults are easy to occur or local heat sources are easy to occur in power lines such as a cable bridge frame interface, a cable terminal and an intermediate joint, a transformer and a cable interface and the like, and the cost is reduced on the premise of ensuring the effectiveness.
Singlechip STM32 and wireless communication device ESP8266 install: singlechip STM32 and wireless communication device ESP8266 are integrated in the terminal box, and terminal box bottom leads to there is the signal line to link to each other with temperature and humidity sensor AM2301, avoids the circuit to expose at the earth's surface.
Claims (10)
1. The utility model provides a cable pit humiture monitored control system which characterized in that: comprises an intelligent terminal, a communication device, a controller, a temperature and humidity sensor positioned in a cable duct, an information acquisition module, an information processing module, an information transmission module and an information display module, wherein the temperature and humidity sensor is connected with the controller and is in one-way communication, the controller is connected with the communication device and is in two-way communication, the communication device is connected with the intelligent terminal and is in two-way communication,
the information acquisition module is used for the temperature and humidity sensor to send the acquired temperature data and humidity data to the controller;
the information processing module is used for receiving the temperature data and the humidity data sent by the temperature and humidity sensor and sending the temperature data and the humidity data to the communication device by the controller;
the information transmission module is used for receiving the temperature data and the humidity data sent by the controller and sending the temperature data and the humidity data to the intelligent terminal by the communication device;
and the information display module is used for receiving and displaying the temperature data and the humidity data sent by the communication device by the intelligent terminal.
2. The cable trench temperature and humidity monitoring system according to claim 1, wherein: the controller is a single chip microcomputer.
3. The cable trench temperature and humidity monitoring system according to claim 1, wherein: the intelligent terminal is a computer terminal or a mobile terminal.
4. The cable trench temperature and humidity monitoring system according to claim 1, wherein: the communication device is in wired connection or wireless connection with the intelligent terminal.
5. The cable trench temperature and humidity monitoring system according to claim 1, wherein: the communication device is a wireless communication device.
6. The cable trench temperature and humidity monitoring system according to claim 1, wherein: and the output end of the temperature and humidity sensor is electrically connected with the input end of the controller.
7. The cable trench temperature and humidity monitoring system according to claim 1, wherein: and a pull-up resistor is electrically connected between the output end of the temperature and humidity sensor and the VCC end.
8. The cable trench temperature and humidity monitoring system according to claim 7, wherein: the pull-up resistor is a resistor with the resistance value of 4.7k omega.
9. The cable trench temperature and humidity monitoring system according to claim 1, wherein: and the output end of the temperature and humidity sensor is electrically connected with an anti-interference circuit.
10. The cable trench temperature and humidity monitoring system of claim 9, wherein: the anti-interference circuit is composed of a resistor R5 and a capacitor C4, the resistor R5 is electrically connected between the output end of the temperature and humidity sensor and the input end of the controller, and the capacitor C4 is electrically connected between the output end of the temperature and humidity sensor and the GND end.
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| CN201911346285.3A CN110968011A (en) | 2019-12-24 | 2019-12-24 | Cable pit humiture monitoring system |
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| CN201911346285.3A CN110968011A (en) | 2019-12-24 | 2019-12-24 | Cable pit humiture monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Application publication date: 20200407 |