CN203385783U - Low-power intelligent high-voltage charged display locking device based on AVR microcontroller - Google Patents

Low-power intelligent high-voltage charged display locking device based on AVR microcontroller Download PDF

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Publication number
CN203385783U
CN203385783U CN201320373275.0U CN201320373275U CN203385783U CN 203385783 U CN203385783 U CN 203385783U CN 201320373275 U CN201320373275 U CN 201320373275U CN 203385783 U CN203385783 U CN 203385783U
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circuit
sensor
processing unit
central processing
display locking
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CN201320373275.0U
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祝中山
黄飞
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CHENGDU GUONENG LONGYUAN TECHNOLOGY Co Ltd
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CHENGDU GUONENG LONGYUAN TECHNOLOGY Co Ltd
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Abstract

The utility model discloses a low-power intelligent high-voltage charged display locking device based on an AVR microcontroller. The low-power intelligent high-voltage charged display locking device comprises a central processing unit, a key input circuit, a sensor detection circuit, an amplifying and conditioning circuit, a timer, a monitoring circuit, a power management circuit, an electricity testing relay, an alarm device, an analog switch circuit, a sensor signal simulation circuit, a capacitive sensor and a signal input circuit. The key input circuit, the sensor detection circuit, the amplifying and conditioning circuit, the timer, the monitoring circuit, the power management circuit, the electricity testing relay, the alarm device, the analog switch circuit and the sensor signal simulation circuit are connected with the central processing unit. The input end of the signal input circuit is connected with the capacitive sensor and the sensor signal simulation circuit, and the output end of the signal input circuit is connected with the amplifying and conditioning circuit and the sensor detection circuit. The low-power intelligent high-voltage charged display locking device is low in cost, stable in operation, accurate in detection, highly intelligent and suitable for large-scale promotion and application.

Description

Low power-consumption intelligent high-voltage electriferous display locking device based on the AVR single-chip microcomputer
Technical field
The utility model relates to a kind of low power-consumption intelligent high-voltage electriferous display locking device based on the AVR single-chip microcomputer.
Background technology
In power industry, when the grounding switch closed procedure is carried out in the transformer station line side to more than 35KV, if do not detected whether line related is charged before operation, just security incident may occur, for preventing the generation of security incident, before closed grounding switch, circuit is carried out to whether charged the detection, just seem particularly important.In order to prevent that the accidents such as mistakenly entering charged chamber and charged mistake splice grafting ground disconnecting link (hanging earthing conductor) from occurring, if the electrical verification to circuit is included in the operating process of micro_computer five_proof, before closed grounding switch, first through high voltage display device, circuit is carried out to electrical verification, just can effectively increase the security of operation, avoid the generation of security incident.
State Grid Corporation of China stipulates in " 18 great anti-accident measures of the electrical network " 4.2.5 promulgated in 2005: " when power distribution equipment has the source of falling the power transmission, the spacer web door should be equipped with the forced blocking of charged display device." after clear arranged again in " the preventing electric misoperation safety management regulation " 4.1.10 issued in 2006: " equipment (as interconnection, enclosed type electrical equipment etc.) that prevents the electric misoperation requirement to using conventional locking technology to meet should be taked to install additional the technical measures such as charged display device and reach and prevent the electric misoperation requirement.To adopting the charged display device of indirect method of checking electricity, when possessing, technical conditions should connect with error-proof device the mandatory blocking function while operating to be grounded ".Hence one can see that, and high voltage display device is the visual plant of guaranteeing power grid security.
The development of high voltage display device, experienced following several stage:
Before the mid-90, it is plug that high voltage display device mainly adopts ceramic condenser based on principle of capacitive divider.This high voltage display device needs to contact with bus, is only applicable to the following system of indoor 35kV, if use at the above voltage levels circuit of 110KV, insulation becomes very difficult, can cause more potential safety hazard on the contrary;
The latter stage nineties, development along with electronic technology, the induction-type high-voltage charged display device has appearred, the principle of this device is, in the alternating electric field around exchanging electrified body, an electrode is set, effect due to electrostatic capacitance, induced charge will appear, then carry out corresponding circuit design according to this induced charge, amplify AC signal, after rectification, with benchmark, compare, detect the height of the whether charged or electrified body current potential of electrified body, the distinguishing feature of this device is the contact of discord bus, at safe distance, install outward, can be widely used in the above electric pressure of 35kV.
Although the induction-type high-voltage charged display device of current domestic main flow is extensively used, all uses civil power as working power, power consumption is large, and outdoor use must increase the paving cable, the increase construction cost.
Summary of the invention
The utility model, for above-mentioned the deficiencies in the prior art, discloses the low power-consumption intelligent high-voltage electriferous display locking device based on the AVR single-chip microcomputer, low in energy consumption, easy to install.
The utility model adopts technical scheme to be: the low power-consumption intelligent high-voltage electriferous display locking device based on the AVR single-chip microcomputer comprises central processing unit, button inputting circuits, sensor detection circuit, amplification modulate circuit, timer, supervisory circuit and electric power management circuit, electrical verification relay, warning device, analog switching circuit and Sensor Signal Simulation Circuit, capacitance type sensor, signal input circuit;
Button inputting circuits, sensor detection circuit, amplification modulate circuit, timer, supervisory circuit and electric power management circuit, electrical verification relay, warning device, analog switching circuit and Sensor Signal Simulation Circuit all are connected with central processing unit;
Signal input circuit input termination capacitance type sensor, Sensor Signal Simulation Circuit, the output termination is amplified modulate circuit and sensor detection circuit.
Described keyboard input module is keyboard.
Described central processing unit adopts ATMEGA8L as process chip.
Described warning device comprises hummer output circuit, voice output circuit, the pilot lamp all be connected with the output terminal of central processing unit.
The beneficial effects of the utility model are: the utility model adopts capacitance type sensor to be picked up the electric signal on the electrification in high voltage circuit, and the electric signal picked up is amplified after the processing such as conditioning and transfer to central processing unit and processed, and Sensor Signal Simulation Circuit can be reduced process sensor data, and the data of reduction and internal standard data are compared, whether final definite circuit is charged, also improved sensitivity and the reliability of product, function is very complete.Secondly, the utility model is provided with warning device, can carry out danger by acoustic-optic alarm while on judging circuit, having electric charge and remind, and farthest to guarantee user security, designs very hommization, realistic demand.Again, the utility model is selected the kernel processor chip of ATMEGA8L as central processing unit, and the ATMEGA8L single-chip microcomputer is 8 AVR single-chip microcomputers of high-performance, low-power consumption that ATMEL produces, and it is higher that it has a sexual valence, and multiple functional advantage, can fully meet functional requirement of the present utility model.Finally, the utility model cost is lower, stable, detection is comparatively accurate, and highly intelligent, is applicable to large-scale promotion application.
The accompanying drawing explanation
Fig. 1 is the utility model system architecture diagram.
Embodiment
Below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in further detail.
Consult Fig. 1, low power-consumption intelligent high-voltage electriferous display locking device based on the AVR single-chip microcomputer, comprise central processing unit, button inputting circuits, sensor detection circuit, amplification modulate circuit, timer, supervisory circuit and electric power management circuit, electrical verification relay, warning device, analog switching circuit and Sensor Signal Simulation Circuit, capacitance type sensor, signal input circuit;
Button inputting circuits, sensor detection circuit, amplification modulate circuit, timer, supervisory circuit and electric power management circuit, electrical verification relay, warning device, analog switching circuit and Sensor Signal Simulation Circuit all are connected with central processing unit;
Signal input circuit input termination capacitance type sensor, Sensor Signal Simulation Circuit, the output termination is amplified modulate circuit and sensor detection circuit.
Described keyboard input module is keyboard.
Described central processing unit adopts ATMEGA8L as process chip.
Described warning device comprises hummer output circuit, voice output circuit, the pilot lamp all be connected with the output terminal of central processing unit.
Wherein, the core processor that central processing unit is whole device, received and processed the electric signal collected, and judges that whether charged circuit is, and control warning device and reported to the police when judging that circuit is charged.
The central processing unit that the utility model adopts mainly comprises the single-chip minimum system that ATMEGA8L single-chip microcomputer (high-performance that ATMEL produces, 8 AVR single-chip microcomputers of low-power consumption), reset circuit, external-connected port and crystal oscillator form, because this single-chip minimum system is industry universal, for known technology, thereby more do not speak more bright at this.Central processing unit is timed after circuit and supervisory circuit are regularly waken up and does one-time detection, detects after finishing and enters immediately sleep.
Electric power management circuit: supply voltage is detected, and complete machine all functions unit is powered.Element circuit is opened when central processing unit is accessed again, and after being finished, closes immediately, with saves energy.
Power acquisition dual power supply in the utility model.A kind of is the alternating current of 220V50Hz, is transformed into the direct current of 3.3V through power module; A kind of is the powered battery of directly using 3.6V.
Signal input circuit: to sensing input signal amplitude limit, prevent that high voltage from scurrying into damage equipment; And can be by sensor signal simulator signal out be added to sensor detection circuit and amplifier modulate circuit.
Sensor detection circuit: the power by detectable voltage signals judges that whether sensor is normal.
Amplify modulate circuit: by the signal input circuit transmission and the signal come carries out filtering, amplifies and process, and the signal after processing is passed to central processing unit.
Sensor Signal Simulation Circuit: increase the reliability of the utility model work, when work, produce the analog sensed signal, late-class circuit is detected.
Capacitance type sensor: the electric signal on the electrification in high voltage circuit is responded to.
Button inputting circuits: carry out parameter modification in the Installation and Debugging process, or for detection of this device whether in normal operating conditions, preferred keyboard in the utility model.
Timer and supervisory circuit: regularly central processing unit is waken up from sleep state.
Hummer output circuit, speech sound device output circuit and pilot lamp: the whether charged state of test line is made to the acousto-optic indication.
The utility model also comprises electrical verification relay and analog switching circuit, wherein, timer, supervisory circuit, sensor detection circuit, keyboard, hummer output circuit, speech sound device output circuit, pilot lamp, electrical verification relay, electric power management circuit, analog switching circuit, Sensor Signal Simulation Circuit, amplification modulate circuit and signal input circuit all are connected with central processing unit, and capacitance type sensor, Sensor Signal Simulation Circuit, amplification modulate circuit and sensor detection circuit all are connected with signal input circuit.
The utility model be take the ATMEGA8L single-chip microcomputer as core, and the signal of capacitance type sensor output is input signal source, and speech sound device and hummer be on-the-spot prompting, and pilot lamp is the state indication, usings the output signal of electrical verification relay and analog switch as the signal that links.During work, the output signal of capacitance type sensor, after pressure limiting and amplifying the filter amplifying processing of modulate circuit, is directly sent into the AD input end of ATMEGA8L single-chip microcomputer.Sensor Signal Simulation Circuit simulation signal after filter amplifying processing, send into the AD input end of ATMEGA8L single-chip microcomputer, the ATMEGA8L single-chip microcomputer judges that by the AD value that reads direct current signal whether capacitance type sensor is in normal operating conditions, whether chargedly obtains test line after the AD value by AC signal and the comprehensive calculation process of pulse width; The SPWM signal of single-chip microcomputer output obtains a sine wave signal after Sensor Signal Simulation Circuit, by this signal of corresponding conversion, can enter and amplify modulate circuit, sensor detection circuit, and this device is carried out to self check.

Claims (4)

1. the low power-consumption intelligent high-voltage electriferous display locking device based on the AVR single-chip microcomputer, is characterized in that: comprise central processing unit, button inputting circuits, sensor detection circuit, amplification modulate circuit, timer, supervisory circuit and electric power management circuit, electrical verification relay, warning device, analog switching circuit and Sensor Signal Simulation Circuit, capacitance type sensor, signal input circuit;
Button inputting circuits, sensor detection circuit, amplification modulate circuit, timer, supervisory circuit and electric power management circuit, electrical verification relay, warning device, analog switching circuit and Sensor Signal Simulation Circuit all are connected with central processing unit;
Signal input circuit input termination capacitance type sensor, Sensor Signal Simulation Circuit, the output termination is amplified modulate circuit and sensor detection circuit.
2. the low power-consumption intelligent high-voltage electriferous display locking device based on the AVR single-chip microcomputer according to claim 1, it is characterized in that: described keyboard input module is keyboard.
3. the low power-consumption intelligent high-voltage electriferous display locking device based on the AVR single-chip microcomputer according to claim 2, it is characterized in that: described central processing unit adopts ATMEGA8L as process chip.
4. the described low power-consumption intelligent high-voltage electriferous display locking device based on the AVR single-chip microcomputer according to claim 3, it is characterized in that: described warning device comprises hummer output circuit, voice output circuit, the pilot lamp all be connected with the output terminal of central processing unit.
CN201320373275.0U 2013-06-27 2013-06-27 Low-power intelligent high-voltage charged display locking device based on AVR microcontroller Active CN203385783U (en)

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Application Number Priority Date Filing Date Title
CN201320373275.0U CN203385783U (en) 2013-06-27 2013-06-27 Low-power intelligent high-voltage charged display locking device based on AVR microcontroller

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105811255A (en) * 2014-12-29 2016-07-27 辽宁拓新电力电子有限公司 High-voltage live display locking device
CN109425778A (en) * 2017-08-28 2019-03-05 镇江市诚翔电器有限责任公司 A kind of high voltage display device of voice prompting and sound and light of alarm based on NV035A chip

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105811255A (en) * 2014-12-29 2016-07-27 辽宁拓新电力电子有限公司 High-voltage live display locking device
CN105811255B (en) * 2014-12-29 2018-06-26 辽宁拓新电力电子有限公司 High-voltage electriferous display locking device
CN109425778A (en) * 2017-08-28 2019-03-05 镇江市诚翔电器有限责任公司 A kind of high voltage display device of voice prompting and sound and light of alarm based on NV035A chip

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