CN213715747U - Switch cabinet secondary equipment monitoring system - Google Patents
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- CN213715747U CN213715747U CN202022941307.5U CN202022941307U CN213715747U CN 213715747 U CN213715747 U CN 213715747U CN 202022941307 U CN202022941307 U CN 202022941307U CN 213715747 U CN213715747 U CN 213715747U
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Abstract
The utility model relates to a switch cabinet secondary equipment monitoring system, which is characterized in that the system comprises a singlechip U1 used as a controller; the input end of the singlechip U1 is connected with the switching value input module and/or the output end of the singlechip U1 is connected with the dry contact output module; the switching value input module at least comprises a 24V input voltage, a signal input end YX1, a resistor R8, a diode D5, a chip U5, a common end GND, an output channel DIN1 of the chip U5 and an output end VCC3V3 on an output channel DIN1, wherein the output end is connected with the singlechip; the 24V input voltage is connected with an input end 1 of a chip U5 through a resistor R8, a signal input end YX1 is connected with an input end 2 of the chip U5, and a diode D5 is connected between the input end 1 and the input end 2 of the chip U5; the output end 16 of the chip U5 is connected with the output end VCC3V3 through a resistor R12, and the output end 15 of the chip U5 is connected with a common end GND; the utility model relates to a rationally, compact structure and convenient to use.
Description
Technical Field
The utility model relates to a switch cabinet secondary equipment monitoring system, the parent case of which is a CN202021012266.5 switch cabinet secondary equipment monitoring system; application date 20200605.
Background
High-voltage switch cabinets of operating power plants and substations are important electrical equipment. The main secondary elements (also called secondary equipment or auxiliary equipment, low-voltage equipment for monitoring, controlling, measuring, regulating and protecting primary equipment) commonly used in the cabinet are provided with a relay, a watt-hour meter, an ammeter, a voltmeter, a power meter, a power factor meter, a frequency meter, a switch, a change-over switch, a button, a microcomputer comprehensive protection device, a temperature and humidity controller and the like.
According to the current situation that the electric load rapidly increases and the technical development requirement of the power industry, the high-voltage switch is developing towards self diagnosis and intellectualization, and the state maintenance is changed from regular maintenance to state maintenance, such as common on-line monitoring with wireless temperature measurement and on-line monitoring with partial discharge, and the recording of the insulativity and the temperature of a contact of a switch cabinet becomes especially important. The related products are very various, and the complex workload exists in the aspects of type selection, wiring, structural design, debugging, communication, attractiveness and the like. The mode of the user is changed continuously during operation, operation errors are easily caused, and the display effect of the nixie tube, the LCD and the like is different in the aspect of display due to different modes, so that the observation of the user is not intuitive.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a cubical switchboard secondary equipment monitored control system is provided overall.
In order to solve the above problems, the utility model adopts the following technical proposal:
a switch cabinet secondary equipment monitoring system comprises a singlechip of a controller; the input end of the controller is respectively and electrically connected with the output ends of a switching value input module, a voltage and current analog value input module, a high-voltage charged sensor input module, a temperature and humidity sensor, a wireless temperature measurement sensor, a partial discharge sensor and a human body induction sensing module; the output end of the controller is respectively provided with a dry contact output module and a display touch module.
As a further improvement of the above technical solution:
the output end of the controller is respectively and electrically connected with the input ends of the RS485 communication module and the voice output module.
A switching value circuit of the switching value input module adopts a dry contact input mode to acquire the state information of the electric devices of the switch cabinet in real time and output the state information to the controller; the controller analyzes and judges whether the state of the electric device is abnormal or not, whether voice reminding is needed or not and generates analysis and judgment information;
the dry contact output module receives the state information of the electric device output by the controller and outputs the state information
The display touch module is provided with a display screen, receives the analysis and judgment information output by the controller and displays the analysis and judgment information on the display screen correspondingly;
the electric device comprises a circuit breaker, a grounding knife and a switching-on/off switch;
the electric device state information comprises voltage information and current information;
the temperature and humidity sensor is used for collecting temperature and humidity, the single chip microcomputer is used for collecting and analyzing the collected data of the temperature and humidity sensor and analyzing the temperature and humidity of the switch cabinet, and the single chip microcomputer controls the heating plate and the fan through the relay;
the wireless temperature measuring sensor and the partial discharge sensor are electrically connected with the single chip microcomputer through demo of an SP1 interface, the single chip microcomputer collects and analyzes temperature in a 433M micropower wireless transmission mode to generate a corresponding curve and judge whether the curve is normal or not, and abnormal measurement stores data and sends out an alarm signal;
the human body induction sensing module L1 is connected with a HongWai port of the single chip microcomputer, the single chip microcomputer judges whether a person passes through the human body infrared principle, and the voice output module carries out corresponding voice reminding on the passing person;
the singlechip U1 is attached with a crystal oscillator module, a reset module and a standby circuit.
The switching value input module at least comprises a 24V input voltage, a signal input end YX1, a resistor R8, a diode D5, a chip U5, a common end GND, an output channel DIN1 of the chip U5 and an output end VCC3V3 connected with a singlechip on an output channel DIN 1;
the 24V input voltage is connected with an input end 1 of a chip U5 through a resistor R8, a signal input end YX1 is connected with an input end 2 of the chip U5, and a diode D5 is connected between the input end 1 and the input end 2 of the chip U5; the output end 16 of the chip U5 is connected with an output end VCC3V3 through a resistor R12; the output end 15 of the chip U5 is connected with a common end GND;
when the signal input end YX1 inputs information, the chip U5 optocoupler is driven by 24V input voltage, so that the level of the input end of the singlechip is changed.
The dry contact output module comprises a chip U7; at least the input end 1 of the chip U7 is connected with the output end BJ1 of the single chip microcomputer, IN the output channel IN5 of the chip U7, the output channel IN5 is connected with the chip U9 and is connected with the output end REL-1, and the output end REL-1 is used for controlling the opening and closing of the relay.
The voltage and current analog input module comprises a mutual inductor ACT6 and an operational amplifier U14D;
the current analog quantity IA-Port is connected with a primary coil of a transformer ACT6, a resistor R60 is arranged between a secondary coil terminal 3 and a secondary coil terminal 4 of the transformer ACT6, and the secondary coil terminal 4 is also connected with a negative input end 13 of an operational amplifier U14D through a resistor R59; a resistor R61 is connected between the negative input end 13 and the output end 14 of the operational amplifier U14D, and the output end 14 of the operational amplifier U14D is connected with the single-chip microcomputer end 1A through a resistor R58;
the voltage signal UA-Port is connected with the node after passing through the resistors R63 and R64, the node is connected with the singlechip end UA through the resistor R67, and is grounded UN through the capacitor C25.
The high-voltage charged sensor input module at least comprises a rectifier B1 for rectifying input signals PtA and PtN of the input end of the high-voltage charged sensor into a direct current signal UA +, and the output end of the rectified direct current signal UA + is electrically connected with the input end of an LED lamp and an optocoupler U12; the output end of the optocoupler U12 is connected with a base electrode of a triode Q1, a collector electrode of a triode Q1 is connected with a single chip machine terminal GY through a resistor R44, an emitter electrode of a triode Q1 is grounded GND, a collector electrode of a triode Q1 is connected with a terminal VCC5v through a resistor R43 and is connected with a base electrode of a triode Q2 through a resistor R48, a collector electrode of the triode Q2 is connected with a relay REL to perform locking operation on a mutual inductor A CT6, and an emitter electrode of the triode Q2 is grounded GND;
the high-voltage live display adopts low-power consumption components and parts, the indicator light is driven by weak current of the high-voltage live sensor, and the locking is operated by the relay.
A high-voltage charged sensor input module is used for a switch cabinet secondary equipment monitoring system and at least comprises a rectifier B1 for rectifying input signals PtA and PtN of a high-voltage charged sensor input end into a direct current signal UA +, and an output end of the rectified direct current signal UA + is electrically connected with an input end of an LED lamp and an input end of an optocoupler U12; the output end of the optocoupler U12 is connected with a base electrode of a triode Q1, a collector electrode of a triode Q1 is connected with a single chip terminal GY through a resistor R44, an emitter electrode of the triode Q1 is grounded GND, a collector electrode of a triode Q1 is connected with a terminal VCC5v through a resistor R43, the collector electrode of the triode Q1 is connected with a base electrode of a triode Q2 through a resistor R48, a collector electrode relay REL of the triode Q2 carries out locking operation on a mutual inductor A CT6, and an emitter electrode of the triode Q2 is grounded.
A voltage and current analog input module is used for a switch cabinet secondary equipment monitoring system and comprises a mutual inductor ACT6 and an operational amplifier U14D;
the current analog quantity IA-Port is connected with a primary coil of a transformer ACT6, a resistor R60 is arranged between a secondary coil terminal 3 and a secondary coil terminal 4 of the transformer ACT6, and the secondary coil terminal 4 is also connected with a negative input end 13 of an operational amplifier U14D through a resistor R59; a resistor R61 is connected between the negative input end 13 and the output end 14 of the operational amplifier U14D, and the output end 14 of the operational amplifier U14D is connected with the single-chip microcomputer end 1A through a resistor R58;
the voltage signal UA-Port is connected with the node after passing through the resistors R63 and R64, the node is connected with the singlechip end UA through the resistor R67, and is grounded UN through the capacitor C25.
A switch cabinet secondary equipment monitoring system comprises a single chip microcomputer U1 used as a controller; the input end of the singlechip U1 is connected with the switching value input module and/or the output end of the singlechip U1 is connected with the dry contact output module;
the switching value input module at least comprises a 24V input voltage, a signal input end YX1, a resistor R8, a diode D5, a chip U5, a common end GND, an output channel DIN1 of the chip U5 and an output end VCC3V3 on an output channel DIN1, wherein the output end is connected with the singlechip; the 24V input voltage is connected with an input end 1 of a chip U5 through a resistor R8, a signal input end YX1 is connected with an input end 2 of the chip U5, and a diode D5 is connected between the input end 1 and the input end 2 of the chip U5; the output end 16 of the chip U5 is connected with an output end VCC3V3 through a resistor R12; the output end 15 of the chip U5 is connected with a common end GND; when the signal input end YX1 inputs information, the chip U5 optocoupler is driven by 24V input voltage, so that the level of the input end of the singlechip is changed;
wherein, the dry contact output module comprises a chip U7; at least the input end 1 of the chip U7 is connected with the output end BJ1 of the single chip microcomputer, IN the output channel IN5 of the chip U7, the output channel IN5 is connected with the chip U9 and is connected with the output end REL-1, and the output end REL-1 is used for controlling the opening and closing of the relay.
The utility model discloses cubical switchboard secondary equipment monitored control system, it can satisfy primary loop simulation, electrified display, self-heating dehumidification controller, circuit breaker divide-shut brake button, circuit breaker divide-shut brake state indication, the ampere meter, the voltmeter, the power meter, the power factor table, the frequency table, the switch, change over switch, wireless temperature measurement on-line monitoring, partial discharge on-line monitoring function to be equipped with 7 cun touch-sensitive screens, it is more convenient directly perceived to use.
The utility model discloses a 7 cun colored resistance touch operation, it is more directly perceived, convenient to let show and operate. The utility model relates to a rationally, low cost, durable, safe and reliable, easy operation, labour saving and time saving, saving fund, compact structure and convenient to use.
Drawings
Fig. 1 is a block diagram of the present invention.
Fig. 2 is a schematic structural diagram of the switching value input module of the present invention.
Fig. 3 is a schematic structural diagram of the dry contact output module of the present invention.
Fig. 4 is a schematic structural diagram of the voltage-current analog input module of the present invention.
Fig. 5 is a block diagram of the input module of the high voltage live sensor of the present invention.
Fig. 6 is a schematic structural view of the temperature and humidity sensor of the present invention.
Fig. 7 is a schematic structural view of the wireless temperature measuring sensor and the partial discharge sensor of the present invention.
Fig. 8 is a schematic structural diagram of the human body sensing module of the present invention.
Fig. 9 is a schematic structural diagram of the single chip microcomputer of the present invention.
Detailed Description
As shown in fig. 1-9, the present invention includes a single chip as a controller; the input end of the controller is respectively and electrically connected with the output ends of a switching value input module, a voltage and current analog value input module, a high-voltage charged sensor input module, a temperature and humidity sensor, a wireless temperature measurement sensor, a partial discharge sensor and a human body induction sensing module; the output end of the controller is respectively and electrically connected with the input ends of an RS485 communication module, a dry contact output module, a display touch module and a voice output module; wherein,
a switching value circuit of the switching value input module adopts a dry contact input mode to acquire the state information of the electric devices of the switch cabinet in real time and output the state information to the controller; the controller analyzes and judges whether the state of the electric device is abnormal or not, whether voice reminding is needed or not and generates analysis and judgment information;
and the dry contact output module receives and outputs the electric device state information output by the controller.
The display touch module is provided with a display screen, receives the analysis and judgment information output by the controller and gives corresponding dynamic display on the display screen;
the electric device comprises a circuit breaker, a grounding knife and a switching-on/off switch;
the electric device state information comprises voltage information and current information;
the switching value input module at least comprises a 24V input voltage, a signal input end YX1, a resistor R8, a diode D5, a chip U5, a common end GND, an output channel DIN1 of the chip U5 and an output end VCC3V3 connected with a singlechip on an output channel DIN 1;
the 24V input voltage is connected with an input end 1 of a chip U5 through a resistor R8, a signal input end YX1 is connected with an input end 2 of the chip U5, and a diode D5 is connected between the input end 1 and the input end 2 of the chip U5; the output end 16 of the chip U5 is connected with the output end VCC3V3 through a resistor R12, and the output end 15 of the chip U5 is connected with a common end GND;
when the signal input end YX1 inputs information, the chip U5 optocoupler is driven by 24V input voltage, so that the level of the input end of the singlechip is changed;
the model of chip U5 employs TLP 281-4.
The dry contact output module comprises a chip U7; at least the input end 1 of the chip U7 is connected with the output end BJ1 of the single chip microcomputer, IN an output channel IN5 of the chip U7, the output channel IN5 is connected with the chip U9 and is connected with the output end REL-1, and the output end REL-1 is used for controlling the opening and closing of a relay;
chip U7 is model TLP 281-4.
The voltage and current analog input module comprises a mutual inductor ACT6 and an operational amplifier U14D;
the current analog quantity IA-Port is connected with a primary coil of a transformer ACT6, a resistor R60 is arranged between a secondary coil terminal 3 and a secondary coil terminal 4 of the transformer ACT6, and the secondary coil terminal 4 is also connected with a negative input end 13 of an operational amplifier U14D through a resistor R59; a resistor R61 is connected between the negative input end 13 and the output end 14 of the operational amplifier U14D, the output end 14 of the operational amplifier U14D is connected with the single chip terminal 1A through a resistor R58, and the secondary coil terminal 3 of the transformer ACT6 and the positive input end 12 of the operational amplifier U14D are connected with the 1V65 end;
the voltage signal UA-Port is connected with a node after passing through resistors R63 and R64, the node is connected with a 1V65 end through a resistor R65, the node is connected with a single chip machine end UA through a resistor R67 and is grounded UN through a capacitor C25;
the analog quantity of the voltage and the current transformer of the switch cabinet is sampled in an AD sampling mode, and the electric parameters are calculated and analyzed through a Fourier formula and a trigonometric function.
The high-voltage charged sensor input module at least comprises a rectifier B1 for rectifying input signals PtA and PtN of a high-voltage charged sensor into a direct-current signal UA +, the rectified direct-current signal UA + output end is electrically connected with an LED lamp and an optocoupler U12 input end, the output end of the optocoupler U12 is connected with a base electrode of a triode Q1, a collector electrode of the triode Q1 is connected with a single-chip microcomputer terminal GY through a resistor R44, an emitter electrode of the triode Q1 is grounded GND, a collector electrode of the triode Q1 is connected with a VCC5v through a resistor R43 and is connected with a base electrode of a triode Q2 through a resistor R48, a collector electrode relay REL of a triode Q2 performs locking operation on a mutual inductor A CT6, and an emitter electrode of the;
the high-voltage live display adopts low-power consumption components and parts, the indicator light is driven by weak current of the high-voltage live sensor, and the locking is operated by the relay.
Temperature and humidity sensor realizes the humiture automatic control function, and the singlechip is through gathering, the analysis to the data that temperature and humidity sensor model is SPH254RF8/3S-4P, and the singlechip is analyzed the humiture of cubical switchboard, through relay control hot plate and fan, prevents that the cubical switchboard from producing the condensation.
The wireless temperature measuring sensor and the partial discharge sensor are electrically connected with the single chip microcomputer through demo of an SP1 interface, the single chip microcomputer collects and analyzes the temperature of the sensor in a 433M micropower wireless transmission mode, a corresponding curve is generated, whether the curve is normal or not is judged, data are stored through abnormal measurement, and an alarm signal is sent out.
Human body induction sensing module L1 connects singlechip hongWai port, through human infrared's principle, judges whether someone passes through, and the singlechip carries out corresponding pronunciation through speech output module to the pedestrian that passes through and reminds.
The model of the singlechip is U1, the model STM32F103VCT6, and peripheral circuits such as a crystal oscillator, a reset circuit, a standby circuit and the like are attached. The utility model discloses the nimble plug-in circuit board of device inside adoption, convenient in the selection of user to the function, can select arbitrary function to make up to it can self-defined setting, convenience of customers's the convenient demand of replacement to open out the semaphore.
The present invention has been fully described for a clear disclosure, and is not further described in detail in the prior art. Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; it is obvious to those skilled in the art that a plurality of embodiments of the present invention may be combined. Such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (1)
1. A switch cabinet secondary equipment monitoring system is characterized by comprising a single chip microcomputer U1 used as a controller; the input end of the singlechip U1 is connected with the switching value input module and/or the output end of the singlechip U1 is connected with the dry contact output module;
the switching value input module at least comprises a 24V input voltage, a signal input end YX1, a resistor R8, a diode D5, a chip U5, a common end GND, an output channel DIN1 of the chip U5 and an output end VCC3V3 on an output channel DIN1, wherein the output end is connected with the singlechip; the 24V input voltage is connected with an input end 1 of a chip U5 through a resistor R8, a signal input end YX1 is connected with an input end 2 of the chip U5, and a diode D5 is connected between the input end 1 and the input end 2 of the chip U5; the output end 16 of the chip U5 is connected with an output end VCC3V3 through a resistor R12; the output end 15 of the chip U5 is connected with a common end GND; when the signal input end YX1 inputs information, the chip U5 optocoupler is driven by 24V input voltage, so that the level of the input end of the singlechip is changed;
wherein, the dry contact output module comprises a chip U7; at least the input end 1 of the chip U7 is connected with the output end BJ1 of the single chip microcomputer, IN the output channel IN5 of the chip U7, the output channel IN5 is connected with the chip U9 and is connected with the output end REL-1, and the output end REL-1 is used for controlling the opening and closing of the relay.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022941307.5U CN213715747U (en) | 2020-06-05 | 2020-06-05 | Switch cabinet secondary equipment monitoring system |
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| CN202021012266.5U CN212484111U (en) | 2020-06-05 | 2020-06-05 | Switch cabinet secondary equipment monitoring system |
| CN202022941307.5U CN213715747U (en) | 2020-06-05 | 2020-06-05 | Switch cabinet secondary equipment monitoring system |
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| CN202021012266.5U Division CN212484111U (en) | 2020-06-05 | 2020-06-05 | Switch cabinet secondary equipment monitoring system |
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| CN202022950170.XU Active CN213715748U (en) | 2020-06-05 | 2020-06-05 | Voltage and current analog input module |
| CN202022941307.5U Active CN213715747U (en) | 2020-06-05 | 2020-06-05 | Switch cabinet secondary equipment monitoring system |
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| CN202022950170.XU Active CN213715748U (en) | 2020-06-05 | 2020-06-05 | Voltage and current analog input module |
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