CN113850985A - Automatic drainage control and early warning device for cable trench of transformer substation - Google Patents
Automatic drainage control and early warning device for cable trench of transformer substation Download PDFInfo
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- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/02—Non-electrical signal transmission systems, e.g. optical systems using infrasonic, sonic or ultrasonic waves
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
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Abstract
The application discloses automatic drainage control and early warning device of cable pit of transformer substation, including single chip module, power module, ultrasonic emission module, ultrasonic wave receiving module, water pump control module, display module and SMS alarm module, power module is each module power supply, and single chip module connects ultrasonic emission module, ultrasonic receiving module, water pump control module, display module and SMS alarm module. Has the following advantages: the automatic drainage device can be started in time when the cable trench is accumulated with water, automatically carries out drainage operation, does not need manual operation, and guarantees the personal safety of operation and maintenance personnel to a greater extent. Meanwhile, an early warning short message is sent to operation and maintenance personnel, so that the operation and maintenance personnel can master the accumulated water condition in the station and the working state of the water pump in time, and the working efficiency is improved.
Description
Technical Field
The invention discloses an automatic drainage control and early warning device for a cable trench of a transformer substation, and belongs to the technical field of electronic control.
Background
In recent years, climate change is abnormal, and extremely severe weather happens occasionally, especially in southeast coastal areas, typhoon rainstorm and flood disasters often lead to ponding in the transformer substation, and the cable trench is used as a low point in the transformer substation and is a ponding disaster area. High-voltage cables and various secondary control cables are laid in the cable trench, short-circuit ground faults are easy to occur after long-term water accumulation soaking, the line trips if the short-circuit ground faults occur, and equipment is burnt if the short-circuit ground faults occur.
At the present stage, when the area has waterlogging, operation and maintenance personnel are required to patrol substations in the district one by one; and if the waterlogging is found in the patrol process, the water pump is transferred to carry out manual water pumping operation. When the transformer substations belong to a plurality of transformer substations and have serious waterlogging conditions, the accumulated water in cable ditches of the transformer substations is very serious, and the cable is soaked in water for a long time and is easy to generate faults such as grounding short circuit, thereby seriously affecting the safe and stable operation of the transformer substations, greatly improving the work load of patrol of operation and maintenance personnel and being difficult to process in time.
The prior art scheme is mostly the manual work of fortune dimension personnel and tours the transformer substation one by one, and the pump that drains carries out artifical pumping operation down when finding that there is ponding in the cable pit of standing. In the operation process, people need to monitor the whole process. After the pumping operation is finished, the water pump needs to be manually retracted, and then the pumping operation of the next transformer substation can be carried out. The existing automatic drainage device on the market is relatively limited, has low reliability, lacks automatic control and short message early warning linkage, and personnel can not timely master the accumulated water state and the working state of the water pump. In view of the limitations of this system, the related art is not used for the time being by substations. The design can make up the technical defects in the current stage, and is suitable for large-area popularization and use in transformer substations and relevant scenes.
Disclosure of Invention
The invention aims to solve the technical problems, and provides an automatic drainage control and early warning device for a cable trench of a transformer substation, which can be started in time when the cable trench is accumulated with water, automatically perform drainage operation without manual operation, ensure the personal safety of operation and maintenance personnel to a greater extent, and send early warning messages to the operation and maintenance personnel to timely master the water accumulation condition in a station and the working state of a water pump, thereby improving the working efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme:
a transformer substation cable trench automatic drainage control and early warning device comprises a single chip microcomputer module, a power supply module, an ultrasonic transmitting module, an ultrasonic receiving module, a water pump control module, a display module and a short message warning module, wherein the power supply module supplies power for the modules;
the single chip microcomputer module comprises a chip U1, a model AT89C52 of the chip U1, a pin 31 of the chip U1 is connected with one end of a resistor R21, the other end of the resistor R21 is connected with +5V, a pin 19 of the chip U1 is connected with one end of a crystal oscillator Y1 and one end of a capacitor C1, a pin 18 of the chip U1 is connected with the other end of the crystal oscillator Y1 and one end of a capacitor C2, the other end of the capacitor C1 and the other end of the capacitor C2 are grounded, a pin 9 of the chip U1 is connected with one end of a capacitor C3, one end of a resistor R1 and one end of a capacitor C4, the other end of the resistor R1 is grounded, the other end of a capacitor C3 is connected with one end of a key S1 and connected with +5V, the other end of the capacitor C4 is connected with one end of a resistor R2 and the other end of a key S1, and the other end of the resistor R2 is grounded;
the ultrasonic transmitting module comprises a connector J1, the connector J1 is externally connected with an ultrasonic transmitting probe, 2 feet of the connector J1 are connected with one end of a chip U1B, one end of the chip U1C and one end of a resistor R3, the other end of the resistor R3 is connected with +5V, the other end of the chip U1B and the other end of the chip U1C are connected with one end of a chip U1A, 1 foot of the connector J1 is connected with one end of a chip U1E, one end of the chip U1D and one end of a resistor R4, the other end of the resistor R4 is connected with +5V, the other end of the chip U1A, the other end of the chip U1E and the other end of the chip U1D are connected with 1 foot of a chip U1, and the models of the chips U1A, U1B, U1C, U1D and U1E are 74LS 04.
Further, the ultrasonic receiving module comprises a connector J, the connector J is externally connected with an ultrasonic receiving probe, 2 feet of the connector J are connected with one end of a resistor R and one end of a capacitor C, the other end of the resistor R is connected with 1 foot of the connector J, the other end of the capacitor C is connected with one end of a resistor R, the other end of the resistor R is connected with 2 feet of a chip U2 and one end of the resistor R, the other end of the resistor R and 1 foot of the chip U2 are connected with one end of a capacitor C, the other end of the capacitor C is connected with one end of a resistor R, the other end of the resistor R is connected with one end of a resistor R and 2 feet of a chip U3, 8 feet of the chip U2 are connected with +5V, 3 feet of the chip U2 are connected with 3 feet of a chip U3, 3 feet of the chip U3 are connected with one end of a capacitor C, one end of a capacitor R and one end of a resistor R, the other end of the capacitor R and the other end of the ground, the other end of the resistor R are connected with +5V with 8 feet of the chip U3, 1 foot of the chip U3 is connected with one end of the other end of the capacitor C, the other end of the capacitor C8 is connected with one end of a diode D2 and one end of a diode D1, the other end of the diode D1 is grounded, the other end of the diode D2 is connected with one end of a capacitor C9 and a pin 5 of a chip U4A, the other end of the capacitor C9 is grounded, and the chip U2A and the chip U3A are LM 358.
Furthermore, a pin 4 of the chip U4A is connected with one end of a resistor R13 and one end of a resistor R14, one end of the resistor R14 and a pin 12 of the chip U4A are grounded, a pin 2 of the chip U4A is connected with one end of a resistor R15 and a base of a triode Q2, the other end of the resistor R15, the other end of the resistor R13 and a pin 3 of the chip U4A are connected with +5V, a collector of the triode Q2 is connected with one end of the resistor R16 and a pin 2 of the chip U1, the other end of the resistor R16 is connected with a VCC power supply, and the model of the chip U4A is LM 339.
Further, the display module comprises a nixie tube DS1, a nixie tube DS2, a nixie tube DS3 and a nixie tube DS4, a DPY pin and a dp pin of the nixie tube DS1 are connected with a collector of a triode Q3, a base of a triode Q3 is connected with one end of a resistor R17, the other end of the resistor R17 is connected with a 4 pin of a chip U1, an emitter of a triode Q3 is connected with +5V, a DPY pin and a dp pin of the nixie tube DS2 are connected with a collector of a triode Q4, a base of the triode Q4 is connected with one end of a resistor R4, the other end of the resistor R4 is connected with a 5 pin of the chip U4, an emitter of the triode Q4 is connected with +5V, a DPY pin and a dp pin of the nixie tube DS4 are connected with a collector of the triode Q4, a base of the triode Q4 is connected with one end of the resistor R4, the other end of the resistor R4 is connected with a base of the triode Q4, the other end of the resistor R20 is connected with a pin 7 of the chip U1, an emitting electrode of the triode Q6 is connected with +5V, and pins a to g of the nixie tube DS1, the nixie tube DS2, the nixie tube DS3 and the nixie tube DS4 are respectively connected with pins 33 to 39 of the chip U1.
Furthermore, the water pump control module includes triode Q7, and the projecting pole of triode Q7 is connected with water pump motor M one end, and water pump motor M other end ground connection, triode Q7's base is connected with resistance R22 one end, and the resistance R22 other end is connected with chip U1's 8 feet.
Further, the short message alarm module comprises a chip U2, the model of the chip U2 is MAX232ESE, a capacitor C11 is connected between pin 1 and pin 3 of the chip U2, a capacitor C13 is connected between pin 4 and pin 5 of the chip U2, pin 2 of the chip U2 is connected with one end of a capacitor C12, the other end of the capacitor C12 is connected with a VCC power supply, pin 6 of the chip U2 is connected with one end of a capacitor C14, the other end of the capacitor C14 is grounded, pin 16 of the chip U2 is connected with one end of a capacitor C15, the other end of the capacitor C15 is grounded, pin 11 of the chip U2 is connected with pin 19 of a ZIF connector TC1, pin 12 of the chip U2 is connected with pin 20 of a ZIF connector TC1, pin 10 of the chip U2 is connected with pin 11 of the chip U1, and pin 9 of the chip U2 is connected with pin 10 of the chip U1.
Furthermore, the 14 pin of the chip U2 is connected with the 4 pin of the connector P3, the 7 pin of the chip U2 is connected with the 5 pin of the connector P3, the 13 pin of the chip U2 is connected with the 3 pin of the connector P3, the 8 pin of the chip U2 is connected with the 4 pin of the connector P3, the 1 pin and the 2 pin of the connector P3 are connected with the 3 pin of the interface J3, and the 7 pin and the 8 pin of the connector P3 are connected with the 2 pin of the interface J3.
Further, the short message alarm module further comprises a chip U3, the type of the chip U3 is SIM _ KP016, pin 1 of the chip U3 is connected with one end of a capacitor C19, one end of the capacitor C20 and pin 28 of a ZIF connector TC1, pin 2 of the chip U3 is connected with one end of a capacitor C21 and pin 25 of the ZIF connector TC1, pin 3 of the chip U3 is connected with pin 27 of the ZIF connector TC1, and pin 6 of the chip U3 is connected with pin 26 of the ZIF connector TC 1.
Further, the short message alarm module further comprises a triode Q11, a collector of the triode Q11 is connected with one end of a resistor R23 and a pin 14 of a ZIF connector TC1, the other end of the resistor R23 is connected with a VCC power supply, a base of the triode Q11 is connected with one end of a capacitor C16, a collector of the triode Q12 and one end of a resistor R24, a base of the triode Q12 is connected with one end of a capacitor C17 and one end of a resistor R25, the other end of the resistor R25 and the other end of the resistor R24 are connected with the VCC power supply, and an emitter of the triode Q12, the other end of the capacitor C16, the other end of the capacitor C17 and an emitter of the triode Q11 are grounded.
Furthermore, a pin 32 of the ZIF connector TC1 is connected to one end of a resistor R26, the other end of the resistor R26 is connected to a base of a transistor Q13, an emitter of the transistor Q13 is grounded, a collector of the transistor Q13 is connected to one end of a light emitting diode LED1, the other end of the light emitting diode LED1 is connected to one end of a resistor R30, the other end of the resistor R30 is connected to a VCC power supply for signal indication, when the LED1 is turned off, it indicates that the TC35 is in an off or sleep state, when the LED1 is turned on for 600 ms/600 ms, it indicates that the SIM card is not inserted or the TC35 is performing network login, and when the LED1 is turned on for 75 ms/3 s, it indicates that the TC35 is logged into the network and is in a holding state.
By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:
the designed automatic control alarm system for the cable trench of the transformer substation can automatically detect accumulated water and start a water pump to drain water in time, so that hidden dangers can be found at the first time and prevented from being expanded continuously; meanwhile, water level alarm information and water pump working state information are sent to operation and maintenance personnel, the operation and maintenance personnel are helped to master the drainage dynamic state in the station in real time, the human resource cost can be effectively saved, electric shock possibly caused by manual operation equipment is avoided, and personal safety hazards are eliminated. When accumulated water drops to a specified position, the automatic stop of the water pump can be realized, and the water pump is prevented from being burnt out in an idling mode, so that the water pump is protected. Meanwhile, the information of early warning release and water pump stop work is sent to operation and maintenance personnel, the work closed loop is completed, the reliability of power supply in the station is improved, and the personal safety, the power grid safety and the equipment safety are really guaranteed.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic circuit diagram of a single-chip module according to the present invention;
FIG. 2 is a schematic circuit diagram of an ultrasonic transmitter module according to the present invention;
FIG. 3 is a schematic circuit diagram of an ultrasonic transmitter module according to the present invention;
FIG. 4 is a schematic circuit diagram of a display module according to the present invention;
FIG. 5 is a schematic circuit diagram of a water pump control module according to the present invention;
fig. 6-10 are schematic circuit diagrams of the short message alarm module according to the present invention.
Detailed Description
As shown in fig. 1, the single chip microcomputer module includes a chip U1, a model AT89C52 of the chip U1, a pin 31 of the chip U1 is connected with one end of a resistor R21, the other end of the resistor R21 is connected with +5V, a pin 19 of the chip U1 is connected with one end of a crystal oscillator Y1 and one end of a capacitor C1, a pin 18 of the chip U1 is connected with the other end of the crystal oscillator Y1 and one end of a capacitor C2, the other end of the capacitor C1 and the other end of the capacitor C2 are grounded, a pin 9 of the chip U1 is connected with one end of a capacitor C3, one end of a resistor R1 and one end of a capacitor C4, the other end of a resistor R1 is grounded, the other end of a capacitor C3 is connected with one end of a key S1 and connected with +5V, the other end of the capacitor C4 is connected with one end of a resistor R2 and the other end of a key S1, and the other end of a resistor R2 is grounded.
As shown in fig. 2, the ultrasonic transmission module includes a connector J1, a connector J1 is externally connected with an ultrasonic transmission probe, 2 feet of the connector J1 are connected with one end of a chip U1B, one end of the chip U1C and one end of a resistor R3, the other end of the resistor R3 is connected with +5V, the other ends of the chip U1B and the chip U1C are connected with one end of a chip U1A, 1 foot of the connector J1 is connected with one end of a chip U1E, one end of the chip U1D and one end of a resistor R4, the other end of the resistor R4 is connected with +5V, the other ends of the chip U1A and the chip U1E and the other end of the chip U1D are connected with 1 foot of a chip U1, and the models of the chip U1A, the chip U1B, the chip U1C, the chip U1D and the chip U1E are 74LS 04.
The P1.0 pin of the single chip microcomputer emits square wave signals with the frequency of 40KHz outwards, the driving capability is enhanced by 74LS04, R3 and R4 are current-limiting resistors, and when the P1.0 pin sends 0, the square wave signals are obtained through U1A: and a is 1, B is 0, and then the compound is obtained by U1B, U1C, U1D and U1E: c is 0, D is 1, the ultrasonic wave emitting module emits high level, and when the pin P1.0 sends 1, the following results are obtained through U1A: and a is 0, B is 1, and then the compound is obtained by U1B, U1C, U1D and U1E: c is equal to 1, D is equal to 0, and the ultrasonic transmitting module sends out low level.
As shown in fig. 3, the ultrasonic receiving module includes a connector J2, a connector J2 is externally connected with an ultrasonic receiving probe, a pin 2 of the connector J2 is connected with one end of a resistor R6 and one end of a capacitor C5, the other end of a resistor R6 is connected with a pin 1 of the connector J2, the other end of the capacitor C2 is connected with one end of a resistor R2, the other end of the resistor R2 is connected with a pin 2 of a chip U2 2 and one end of a resistor R2, the other end of the resistor R2 and the pin 1 of the chip U2 2 are connected with one end of a capacitor C2, the other end of the capacitor C2 is connected with one end of a resistor R2 and the pin 2 of a chip U3 2, the other end of the capacitor C2 and the other end of the resistor R2 are connected with +5V, the other end of the capacitor C2 and the other end of the capacitor R2 are connected with ground, the pin 3 +5V of the resistor R2 and the other end of the chip U3 2 are connected with the chip 2, the other end of a resistor R12 and one end of a capacitor C8 are connected to a pin 1 of the chip U3A, one end of a diode D2 and one end of a diode D1 are connected to the other end of the capacitor C8, the other end of a diode D1 is grounded, one end of a capacitor C9 and a pin 5 of the chip U4A are connected to the other end of the diode D2, the other end of the capacitor C9 is grounded, and the models of the chip U2A and the chip U3A are LM 358.
The 4 feet of the chip U4A are connected with one end of a resistor R13 and one end of a resistor R14, one end of the resistor R14 is grounded with the 12 feet of the chip U4A, the 2 feet of the chip U4A are connected with one end of a resistor R15 and the base of a triode Q2, the other end of the resistor R15, the other end of the resistor R13 and the 3 feet of the chip U4A are connected with +5V, the collector of the triode Q2 is connected with one end of the resistor R16 and the 2 feet of the chip U1, the other end of the resistor R16 is connected with a VCC power supply, and the model of the chip U4A is LM 339.
The ultrasonic receiving module adopts two-stage amplification to form detection and amplification of ultrasonic signals, 2.5V midpoint voltage is arranged at the equidirectional end of the LM358 through the resistor R20 and the capacitor R21, the quality of the amplified alternating current signals can be guaranteed, signal distortion cannot be generated, the ultrasonic receiving module is approximate to a sine wave when receiving the signals, the LM339 converts the sine wave into a square wave, the high level of the square wave can enable the triode Q2 to be conducted, when no signal exists, the high level is output, and once the signal exists, the low level is output.
As shown in fig. 4, the display module includes a nixie tube DS1, a nixie tube DS2, a nixie tube DS3 and a nixie tube DS4, a DPY pin and a dp pin of the nixie tube DS1 are connected with a collector of a transistor Q3, a base of a transistor Q3 is connected with one end of a resistor R17, the other end of the resistor R17 is connected with a 4 pin of a chip U1, an emitter of a transistor Q3 is connected with +5V, a DPY pin and a dp pin of the nixie tube DS2 are connected with a collector of a transistor Q4, a base of the transistor Q4 is connected with one end of a resistor R4, the other end of the resistor R4 is connected with a 5 pin of the chip U4, an emitter of the transistor Q4 is connected with +5V, a DPY pin and a dp pin of the nixie tube DS4 are connected with a collector of the transistor Q4, a base of the transistor Q4 is connected with one end of the transistor Q4, and a collector of the transistor Q4, the other end of the resistor R20 is connected with a pin 7 of the chip U1, an emitting electrode of the triode Q6 is connected with +5V, and pins a to g of the nixie tube DS1, the nixie tube DS2, the nixie tube DS3 and the nixie tube DS4 are respectively connected with pins 33 to 39 of the chip U1.
As shown in fig. 5, the water pump control module includes a triode Q7, an emitter of the triode Q7 is connected with one end of a water pump motor M, the other end of the water pump motor M is grounded, a base of the triode Q7 is connected with one end of a resistor R22, and the other end of the resistor R22 is connected with an 8-pin of a chip U1.
As shown in fig. 6 and 7, the short message alarm module includes a chip U2, the model of the chip U2 is MAX232ESE, a capacitor C11 is connected between pin 1 and pin 3 of the chip U2, a capacitor C13 is connected between pin 4 and pin 5 of the chip U2, pin 2 of the chip U2 is connected to one end of the capacitor C12, the other end of the capacitor C12 is connected to a VCC power supply, pin 6 of the chip U2 is connected to one end of the capacitor C14, the other end of the capacitor C14 is grounded, pin 16 of the chip U2 is connected to one end of the capacitor C15, the other end of the capacitor C15 is grounded, pin 11 of the chip U2 is connected to pin 19 of a ZIF connector TC1, pin 12 of the chip U2 is connected to pin 20 of a ZIF connector TC1, pin 10 of the chip U2 is connected to pin 11 of the chip U1, and pin 9 of the chip U2 is connected to pin 10 of the chip U1.
The 14 pins of the chip U2 are connected with the 4 pins of a connector P3, the 7 pins of the chip U2 are connected with the 5 pins of the connector P3, the 13 pins of the chip U2 are connected with the 3 pins of a connector P3, the 8 pins of the chip U2 are connected with the 4 pins of a connector P3, the 1 pin and the 2 pins of the connector P3 are connected with the 3 pins of an interface J3, and the 7 pins and the 8 pins of the connector P3 are connected with the 2 pins of an interface J3.
The circuit is used for serial communication, is used for completing functions of short message receiving and transmitting, PC and communication, software flow control and the like, takes an MAX232ESE chip as a core, realizes functions of level conversion and serial communication, has the characteristics of low power consumption, high data rate, enhanced ESD protection and the like, and provides protection for all transmitter outputs and receiver inputs.
As shown in fig. 10, the short message alarm module further includes a chip U3, the model of the chip U3 is SIM _ KP016, pin 1 of the chip U3 is connected to one end of a capacitor C19, one end of the capacitor C20 and pin 28 of a ZIF connector TC1, pin 2 of the chip U3 is connected to one end of a capacitor C21 and pin 25 of the ZIF connector TC1, pin 3 of the chip U3 is connected to pin 27 of the ZIF connector TC1, and pin 6 of the chip U3 is connected to pin 26 of the ZIF connector TC 1.
The part is an SIM card slot interface circuit, a CCIN pin is used for detecting whether an SIM card is inserted into the SIM card support or not, and when the SIM card is inserted, the pin is at a high level, and the system enters normal operation.
As shown in fig. 8, the short message alarm module further includes a triode Q11, a collector of the triode Q11 is connected with one end of a resistor R23 and a pin 14 of a ZIF connector TC1, the other end of the resistor R23 is connected with a VCC power supply, a base of the triode Q11 is connected with one end of a capacitor C16, a collector of the triode Q12 and one end of a resistor R24, a base of the triode Q12 is connected with one end of a capacitor C17 and one end of a resistor R25, the other end of the resistor R25 and the other end of the resistor R24 are connected with the VCC power supply, and an emitter of the triode Q12, the other end of the capacitor C16, the other end of the capacitor C17 and an emitter of the triode Q11 are grounded.
The part is a GSM self-starting circuit which consists of a triode and a power-on reset circuit, after being powered on for 10ms, in order to enable the GSM self-starting circuit to work normally, a low-level signal with the length of at least 100ms must be used in 14 pins, the falling edge time of the signal is less than 1ms, and after being started, the 14-pin signal should be kept at a high level.
As shown in fig. 9, a pin 32 of the ZIF connector TC1 is connected to one end of a resistor R26, the other end of the resistor R26 is connected to a base of a transistor Q13, an emitter of the transistor Q13 is grounded, a collector of the transistor Q13 is connected to one end of a light emitting diode LED1, the other end of the light emitting diode LED1 is connected to one end of a resistor R30, and the other end of the resistor R30 is connected to a VCC power supply for signal indication, and when the LED1 goes out, it indicates that the TC35 is in an off or sleep state, when the LED1 goes out for 600ms, it indicates that the SIM card is not inserted or the TC35 is performing network login, and when the LED1 goes out for 75 ms/3 s, it indicates that the TC35 is logged into the network and is in a hold state.
The principle of ultrasonic ranging is that the propagation speed of ultrasonic waves in the air is known, the time that the sound waves are transmitted back when meeting obstacles after being transmitted is measured, the actual distance that a transmitting point meets the obstacles is calculated according to the transmitting and receiving time difference, the water level condition in a cable trench is sensed through an ultrasonic transmitting module and an ultrasonic receiving module and is transmitted to a single chip microcomputer module, the water level information and the working state information of a water pump are reported through a short message alarm module while the drainage of the cable trench is carried out, operation and maintenance personnel can timely master the water level dynamic state in the station, the structure is relatively reliable, the drainage of the cable trench in the station can be effectively carried out when the waterlogging easily occurs in rainy seasons and the like, and the safe and reliable operation of a transformer substation is guaranteed.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The utility model provides a transformer substation's cable pit automatic drainage control and early warning device which characterized in that: the water pump control system comprises a single chip microcomputer module, a power supply module, an ultrasonic transmitting module, an ultrasonic receiving module, a water pump control module, a display module and a short message alarm module, wherein the power supply module supplies power for the modules;
the single chip microcomputer module comprises a chip U1, a model AT89C52 of the chip U1, a pin 31 of the chip U1 is connected with one end of a resistor R21, the other end of the resistor R21 is connected with +5V, a pin 19 of the chip U1 is connected with one end of a crystal oscillator Y1 and one end of a capacitor C1, a pin 18 of the chip U1 is connected with the other end of the crystal oscillator Y1 and one end of a capacitor C2, the other end of the capacitor C1 and the other end of the capacitor C2 are grounded, a pin 9 of the chip U1 is connected with one end of a capacitor C3, one end of a resistor R1 and one end of a capacitor C4, the other end of the resistor R1 is grounded, the other end of a capacitor C3 is connected with one end of a key S1 and connected with +5V, the other end of the capacitor C4 is connected with one end of a resistor R2 and the other end of a key S1, and the other end of the resistor R2 is grounded;
the ultrasonic transmitting module comprises a connector J1, the connector J1 is externally connected with an ultrasonic transmitting probe, 2 feet of the connector J1 are connected with one end of a chip U1B, one end of the chip U1C and one end of a resistor R3, the other end of the resistor R3 is connected with +5V, the other end of the chip U1B and the other end of the chip U1C are connected with one end of a chip U1A, 1 foot of the connector J1 is connected with one end of a chip U1E, one end of the chip U1D and one end of a resistor R4, the other end of the resistor R4 is connected with +5V, the other end of the chip U1A, the other end of the chip U1E and the other end of the chip U1D are connected with 1 foot of a chip U1, and the models of the chips U1A, U1B, U1C, U1D and U1E are 74LS 04.
2. The automatic drainage control and early warning device for the cable trench of the transformer substation of claim 1, wherein: the ultrasonic receiving module comprises a connector J, the connector J is externally connected with an ultrasonic receiving probe, 2 feet of the connector J are connected with a resistor R end and a capacitor C end, the other end of the resistor R is connected with 1 foot of the connector J, the other end of the capacitor C is connected with a resistor R end, the other end of the resistor R is connected with 2 feet of a chip U2 and a resistor R end, the other end of the resistor R and 1 foot of the chip U2 are connected with a capacitor C end, the other end of the capacitor C is connected with a resistor R end, the other end of the resistor R is connected with 2 feet of the resistor R and 2 feet of the chip U3, 8 feet of the chip U2 are connected with +5V, 3 feet of the chip U2 are connected with 3 feet of the chip U3, 3 feet of the chip U3 are connected with one end of the capacitor C, one end of the capacitor R and one end of the resistor R, the other end of the capacitor C and the other end of the capacitor R are grounded, the other end of the resistor R and 8 feet of the chip U3 are connected with +5V, 1 foot of the chip U3 is connected with the other end of the resistor R and one end of the capacitor C, the other end of the capacitor C8 is connected with one end of a diode D2 and one end of a diode D1, the other end of the diode D1 is grounded, the other end of the diode D2 is connected with one end of a capacitor C9 and a pin 5 of a chip U4A, the other end of the capacitor C9 is grounded, and the chip U2A and the chip U3A are LM 358.
3. The automatic drainage control and early warning device of the transformer substation cable trench of claim 2, characterized in that: the 4 feet of the chip U4A are connected with one end of a resistor R13 and one end of a resistor R14, one end of the resistor R14 is grounded with the 12 feet of the chip U4A, the 2 feet of the chip U4A are connected with one end of a resistor R15 and the base of a triode Q2, the other end of the resistor R15, the other end of the resistor R13 and the 3 feet of the chip U4A are connected with +5V, the collector of the triode Q2 is connected with one end of the resistor R16 and the 2 feet of the chip U1, the other end of the resistor R16 is connected with a VCC power supply, and the model of the chip U4A is LM 339.
4. The automatic drainage control and early warning device for the cable trench of the transformer substation of claim 1, wherein: the display module comprises a nixie tube DS1, a nixie tube DS2, a nixie tube DS3 and a nixie tube DS4, a DPY pin and a dp pin of the nixie tube DS1 are connected with a collector of a triode Q3, a base of a triode Q3 is connected with one end of a resistor R17, the other end of the resistor R17 is connected with a 4 pin of a chip U1, an emitter of a triode Q3 is connected with +5V, a DPY pin and a dp pin of the nixie tube DS2 are connected with a collector of a triode Q4, a base of the triode Q4 is connected with one end of a resistor R4, the other end of the resistor R4 is connected with a 5 pin of the chip U4, an emitter of the triode Q4 is connected with +5V, a DPY pin and a dp pin of the nixie tube DS4 are connected with a collector of the triode Q4, a base of the resistor R4 is connected with one end of the triode Q4, the other end of the resistor R4 is connected with an emitter of the triode Q4, the other end of the resistor R20 is connected with a pin 7 of the chip U1, an emitting electrode of the triode Q6 is connected with +5V, and pins a to g of the nixie tube DS1, the nixie tube DS2, the nixie tube DS3 and the nixie tube DS4 are respectively connected with pins 33 to 39 of the chip U1.
5. The automatic drainage control and early warning device for the cable trench of the transformer substation of claim 1, wherein: the water pump control module comprises a triode Q7, an emitter of the triode Q7 is connected with one end of a water pump motor M, the other end of the water pump motor M is grounded, a base of the triode Q7 is connected with one end of a resistor R22, and the other end of the resistor R22 is connected with an 8-pin of a chip U1.
6. The automatic drainage control and early warning device for the cable trench of the transformer substation of claim 1, wherein: the short message alarm module comprises a chip U2, the model of the chip U2 is MAX232ESE, a capacitor C11 is connected between pin 1 and pin 3 of the chip U2, a capacitor C13 is connected between pin 4 and pin 5 of the chip U2, pin 2 of the chip U2 is connected with one end of a capacitor C12, the other end of the capacitor C12 is connected with a VCC power supply, pin 6 of the chip U2 is connected with one end of a capacitor C14, the other end of the capacitor C14 is grounded, pin 16 of the chip U2 is connected with one end of a capacitor C15, the other end of the capacitor C15 is grounded, pin 11 of the chip U2 is connected with pin 19 of a ZIF connector TC1, pin 12 of the chip U2 is connected with pin 20 of a ZIF connector TC1, pin 10 of the chip U2 is connected with pin 11 of the chip U1, and pin 9 of the chip U2 is connected with pin 10 of the chip U1.
7. The automatic drainage control and early warning device of the transformer substation cable trench of claim 6, characterized in that: the 14 pins of the chip U2 are connected with the 4 pins of a connector P3, the 7 pins of the chip U2 are connected with the 5 pins of the connector P3, the 13 pins of the chip U2 are connected with the 3 pins of a connector P3, the 8 pins of the chip U2 are connected with the 4 pins of a connector P3, the 1 pin and the 2 pins of the connector P3 are connected with the 3 pins of an interface J3, and the 7 pins and the 8 pins of the connector P3 are connected with the 2 pins of an interface J3.
8. The automatic drainage control and early warning device of the transformer substation cable trench of claim 6, characterized in that: the short message alarm module further comprises a chip U3, the type of the chip U3 is SIM _ KP016, pin 1 of the chip U3 is connected with one end of a capacitor C19, one end of the capacitor C20 and pin 28 of a ZIF connector TC1, pin 2 of the chip U3 is connected with one end of a capacitor C21 and pin 25 of the ZIF connector TC1, pin 3 of the chip U3 is connected with pin 27 of the ZIF connector TC1, and pin 6 of the chip U3 is connected with pin 26 of the ZIF connector TC 1.
9. The automatic drainage control and early warning device of the transformer substation cable trench of claim 6, characterized in that: the short message alarm module further comprises a triode Q11, the collector of the triode Q11 is connected with one end of a resistor R23 and a pin 14 of a ZIF connector TC1, the other end of the resistor R23 is connected with a VCC power supply, the base of the triode Q11 is connected with one end of a capacitor C16, the collector of the triode Q12 and one end of a resistor R24, the base of the triode Q12 is connected with one end of a capacitor C17 and one end of a resistor R25, the other end of the resistor R25 and the other end of the resistor R24 are connected with the VCC power supply, the emitter of the triode Q12, the other end of the capacitor C16, the other end of the capacitor C17 and the emitter of the triode Q11 are grounded.
10. The automatic drainage control and early warning device of the transformer substation cable trench of claim 6, characterized in that: the pin 32 of the ZIF connector TC1 is connected with one end of a resistor R26, the other end of the resistor R26 is connected with a base electrode of a triode Q13, an emitting electrode of the triode Q13 is grounded, a collecting electrode of the triode Q13 is connected with one end of a light-emitting diode LED1, the other end of the light-emitting diode LED1 is connected with one end of a resistor R30, the other end of the resistor R30 is connected with a VCC power supply for signal indication, when the LED1 is extinguished, the TC35 is in an off or sleep state, when the LED1 is lit for 600 ms/extinguished for 600ms, the SIM card is not inserted or the TC35 is performing network login, and when the LED1 is lit for 75 ms/extinguished for 3s, the TC35 is logged into a network and is in a holding state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111111868.5A CN113850985A (en) | 2021-09-18 | 2021-09-18 | Automatic drainage control and early warning device for cable trench of transformer substation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111111868.5A CN113850985A (en) | 2021-09-18 | 2021-09-18 | Automatic drainage control and early warning device for cable trench of transformer substation |
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Application publication date: 20211228 |