CN207180767U - A kind of high-voltage breaker operation mechanism humiture on-Line Monitor Device - Google Patents

Abstract

A kind of high-voltage breaker operation mechanism humiture on-Line Monitor Device, including sensor detection module, the signal processing module connected with sensor detection module, signal processing module output end is connected by the input of wireless Zigbee module with control core module, and what is connected with the input of control core module also has power supply.The output end of control core module connects remote monitoring center by the lines of RS 485, and remote monitoring center is shown by host computer to field monitoring.What is connected with the output end of control core module also has audible alarm module, live LCD MODULE.

Description

A kind of high-voltage breaker operation mechanism humiture on-Line Monitor Device

Technical field

Power system high-voltage breaker operation mechanism on-line monitoring technique field is the utility model is related to, more particularly to it is a kind of High-voltage breaker operation mechanism humiture on-Line Monitor Device.

Background technology

The pneumatic mechanism and hydraulic mechanism of high-voltage breaker operation mechanism require higher, pneumatic mechanism master to ambient temperature and humidity If season in summer in winter two is too high or too low for temperature, occur that pneumatic mechanism poor sealing causes pneumatic mechanism to be suppressed frequently.Liquid Press mechanism is because the reason such as operating pressure is big, the compressibility of hydraulic oil and Thermo-sensitive so that hydraulic mechanism failure probability It is larger, frequent bulge be present and suppress the problems such as excessively stream is out-of-date, its divide-shut brake characteristic is easily influenceed by temperature.At present, to height The main maintenance prerun for taking manual patrol and fixed time between overhauls(TBO) of voltage breaker operating mechanism monitoring, but manual patrol can only It is difficult to judge by the directly monitoring amount such as equipment appearance, instrument and meter, is influenceed by number and fineness is maked an inspection tour, manual patrol disadvantage Hold larger, many parameters naked eyes can not be seen, and manual patrol efficiency is low.In addition, maintenance performulation is carried out to equipment Equipment deficiency and failure is set to find and handle in time, but overhauling performulation is carried out on the basis of power failure , it is impossible to the equipment in actual motion is handled, influenceed by the time between overhauls(TBO) fixed and the cycle that has a power failure, it is impossible to accomplish Equipment deficiency and failure are found and handled in real time.Therefore, should be towards intelligence to high-voltage breaker operation mechanism on-line monitoring Change, automation, precision direction is developed, and the utilization of primary cut-out on-Line Monitor Device of new generation, which can release, existing manually patrols Depending on drawback, ensure power grid security reliability service.

The content of the invention

Technical problem to be solved in the utility model is to be directed to above-mentioned the deficiencies in the prior art, and the utility model provides base In the high-voltage breaker operation mechanism on-Line Monitor Device of a variety of wireless communication modes fusion, by installed in different voltages etc. DHT11 Temperature Humidity Sensors in level high-voltage breaker operation mechanism case detect to humiture in case, when the data of detection During the threshold value pre-set more than system, system automatic start audible alarm system is alarmed, and then passes the data of collection It is sent in monitoring terminal node, entered router node and expand wireless-transmission network scope and distance, then pass through wireless ZigBee By the data transfer that terminal node collects to coordinator node, coordinator node is collected the data transmitted, and Field monitoring situation is presented to fortune by data to host computer, host computer by RS-485 bus transfers by observation interface form Dimension personnel.The present apparatus can remotely monitor the security situation of primary cut-out, can both mitigate hand labor intensity, reduce artificial Live detection safety, can improve the automatic monitoring capability of power network again, improve power grid security.

To achieve these goals, the technical solution of the utility model is：Examined including sensor detection module, and sensor The signal processing module of module connection is surveyed, signal processing module output end passes through wireless Zigbee module and control core module Input connects, and what is connected with the input of control core module also has power supply.The output end of control core module passes through RS-485 lines connect remote monitoring center, and remote monitoring center is shown by host computer to field monitoring.With control core module Output end connection also have audible alarm module, live LCD MODULE.

The Temperature Humidity Sensor selects DHTII model sensors, the detection temperature humidity range of the Temperature Humidity Sensor Extensively, operating voltage is low, low in energy consumption, exports in digital form, facilitates control core module reception signal.The sensor is provided with solid Determine bolt hole, be easily installed.

The signal processing module includes signal amplification circuit and signal filter circuit；The signal amplification circuit uses instrument Table amplifier MAX4196 chips, the amplifier have the closed loop gain of Differential Input and relative reference edge Single-end output, and it is poor to have Divide the Single-end output of output and relative reference edge.I.e. its two differential input ends apply input signal, and its gain can be by inside Preset, the outside gain resistor that can also be set by pin inner portions by user or be isolated by input signal is set, and is used It is convenient；The filter circuit uses step low-pass ButterWorth filter circuits, has multiple filter effect, reliability is high, surely It is qualitative strong；

The wireless Zigbee module can realize that near radio transmits；With exempting to connect up, transmission speed is fast, dry by the external world Disturb the advantages that small；The Zigbee module includes router node and coordinator node.The router node major function is Expand the scope and distance of wireless-transmission network, the coordinator node is that the data for transmitting router are collected；

The control core module uses CC2530 chips, and the chip is had using SOC systems on highly integrated piece Superb wireless telecommunications performance, low-power consumption and high sensitivity, superpower antijamming capability, can greatly save disappearing for the energy content of battery Consumption, meets the system to horsepower requirements；

The sound and light alarm module uses HRB-KM series buzzerphone alarm apparatus, and the five kinds of sound in the buzzer inside are available for Selection, volume is adjustable, and sound is higher.

The liquid crystal display uses 1602 industrial character mode lcds, and the liquid crystal board is that one kind is specifically used to display letter, number The dot matrix type Liquid Crystal Module of word, symbol etc., the humiture that operation maintenance personnel can be facilitated to check at the scene in breaker operation mechanism case Data；

Using said structure, the utility model provides a kind of primary cut-out behaviour based on the fusion of a variety of wireless communication modes Motivation structure humiture on-Line Monitor Device, is detected, the letter of detection by spot sensor to high-voltage breaker operation mechanism Number further amplified by signal processing module, filtering process, be transmitted by wireless Zigbee module and give control core mould Block, the temperature and humidity value that the analysis integrated Site Detection by control core module arrives, so as to control the keying of sound and light alarm module, Testing result is shown by live display module.The data detected are sent to remotely by RS-485 buses simultaneously Surveillance center, Site Detection result is shown by host computer, operation maintenance personnel is made according to display result to Site Detection situation Judge, take safeguard measure in time, protect power grid security, equipment safety, personal safety.

Brief description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and examples：

Fig. 1 is system construction drawing of the present utility model；

Fig. 2 is the utility model signal amplification circuit；

Fig. 3 is the utility model signal filter circuit；

Fig. 4 is that the utility model Temperature Humidity Sensor detects circuit diagram；

Fig. 5 is the utility model liquid crystal display circuit；

Fig. 6 is the utility model audible alarm circuit diagram.

Embodiment

As shown in figure 1, a kind of high-voltage breaker operation mechanism humiture on-Line Monitor Device, including sensor detection mould Block, the signal processing module connected with sensor detection module, signal processing module output end by wireless Zigbee module and The input connection of control core module, what is connected with the input of control core module also has power supply.Control core mould The output end of block connects remote monitoring center by RS-485 lines, and remote monitoring center is shown by host computer to field monitoring. What is connected with the output end of control core module also has sound and light alarm module, live LCD MODULE.

Fig. 2 is the signal amplification circuit of the utility model patent.Due to the signal ratio of the detection output of Temperature Humidity Sensor It is smaller, it is necessary to which special amplifying circuit is amplified to voltage signal.Selection uses instrument amplifier in this utility patent MAX4196, it has the closed loop gain of Differential Input and relative reference edge Single-end output, has difference output and relative reference edge Single-end output.I.e. its two differential input ends apply input signal, and its gain can be preset by inside, can also be led to by user The outside gain resistor that pin inner portions set or by input signal isolated is crossed to set.In the present system, TT＆C system is wished The output signal of Temperature Humidity Sensor is between 0-5V, so, it is necessary to the voltage base of an outside when using MAX4196 chips Standard, the voltage reference in the present system, select 2.5V voltage reference equivalent to the zero-bit of instrument amplifier.It is public using MAXIM The voltage reference chip MAX6192 of department is provided for MAX4196 and is referred to zero-bit.

Fig. 3 is the signal filter circuit figure of the utility model patent.Due to Temperature Humidity Sensor working environment noise compared with It is more, so in the design, considering to be filtered signal using step low-pass ButterWorth filter circuits.The system designs Second order voltage controlled voltage source low pass filter RC filter circuits are saved by R5, C16 and R6, C17 two and R7, R8 are formed with compared with Example amplifying circuit is formed, and wherein in-phase proportion amplifying circuit is actually voltage controlled voltage source.Input impedance height is characterized in, it is defeated It is low to go out impedance.The voltage gain of in-phase proportion amplifying circuit is exactly the passband voltage gain of low pass filter, i.e.,.Input signal OUT is after two section RC filter circuits and the filtering of in-phase proportion amplifying circuit, output signal SOUT.

As shown in figure 4, Temperature Humidity Sensor uses DHT11 digital hygro sensors, it is a containing calibrated number The humiture compound sensor of word signal output, the DATA mouths of sensor are connected after a resistance with main control chip, realize two Communication and synchronization between person, transmission use single bus data form, and communication time 4ms or so, user MCU transmissions are once After commencing signal, DHT11 is transformed into fast mode from low-power consumption mode, and after waiting main frame commencing signal to terminate, DHT11, which is sent, to be rung Induction signal, 40bit data are sent out, and trigger a signal acquisition, user may be selected to read partial data.Under slave pattern, DHT11 receives commencing signal and triggers a humiture collection, if being not received by main frame sends commencing signal, DHT11 is not Humiture collection can actively be carried out.Low-speed mode is transformed into after gathered data.

As shown in figure 5, liquid crystal display module uses 8 position digital signal parallel transmission patterns, BLA and BLK ends are distinguished defeated Enter positive pole and negative pole that LCD backlight lights module.It can not be realized in most cases closely in view of field personnel Data are observed, should be ensured that the system of realization without the automatic function of closing LCDs after operating ten minutes under normality.

As shown in fig. 6, it is the utility model buzzer alarm circuit figure.In the utility model, work as Temperature Humidity Sensor When detecting that high-voltage breaker operation mechanism humiture is higher than the threshold value of default, system can send audible alarm automatically, carry Awake staff is overhauled and prevented accident generation, and kernel control module will export low level, and be put by triode Triggering buzzer warning after big.It is as shown in Figure 5 using buzzer warning implement body sound light alarming circuit.

Using said structure, the utility model provides a kind of high-voltage breaker operation mechanism humiture on-Line Monitor Device, High-voltage breaker operation mechanism is detected by spot sensor, the signal of detection is further put by signal processing module Greatly, filtering process, it is transmitted by wireless Zigbee module and gives control core module, the analysis by control core module is comprehensive The temperature and humidity value that Site Detection arrives is closed, so as to control the keying of audible alarm module, testing result is passed through into live display module Shown.The data detected are sent to by remote monitoring center by RS-485 buses simultaneously, by host computer by scene Testing result shows that operation maintenance personnel judges according to display result to Site Detection situation, takes safeguard measure in time, protects Power grid security, equipment safety, personal safety.

The above embodiments are only optimal technical scheme of the present utility model, and are not construed as limit of the present utility model System, the technical scheme that the scope of protection of the utility model should be recorded with claim, including the technical scheme that claim is recorded The equivalents of middle technical characteristic are protection domain.Equivalent substitution i.e. within this range is improved, also in the utility model Protection domain within.

Claims (9)

1. A kind of 1. high-voltage breaker operation mechanism humiture on-Line Monitor Device, it is characterised in that：It includes sensor detection mould Block（1）, and sensor detection module（1）The signal processing module of connection（2）, signal processing module（2）Output end passes through wireless Zigbee module（5）With control core module（9）Input connection, and control core module（9）Input connection confession Power supply（8）, control core module（9）Output end and remote monitoring center（12）Connection, remote monitoring center（12）Including Host computer, control core module（9）Output end and sound and light alarm module（11）, LCD MODULE（10）Connection.
2. A kind of 2. high-voltage breaker operation mechanism humiture on-Line Monitor Device according to claim 1, it is characterised in that：Institute State sensor detection module（1）Including Temperature Humidity Sensor.
3. A kind of 3. high-voltage breaker operation mechanism humiture on-Line Monitor Device according to claim 2, it is characterised in that：Institute State the model DHTII of Temperature Humidity Sensor.
4. A kind of 4. high-voltage breaker operation mechanism humiture on-Line Monitor Device according to claim 1, it is characterised in that：Institute State signal processing module（2）Including signal amplification circuit（3）And signal filter circuit（4）.
5. A kind of 5. high-voltage breaker operation mechanism humiture on-Line Monitor Device according to claim 4, it is characterised in that：Institute State signal amplification circuit（3）Using instrument amplifier MAX4196 chips.
6. A kind of 6. high-voltage breaker operation mechanism humiture on-Line Monitor Device according to claim 4, it is characterised in that：Institute State signal filter circuit（4）For step low-pass ButterWorth filter circuits.
7. A kind of 7. high-voltage breaker operation mechanism humiture on-Line Monitor Device according to claim 1, it is characterised in that：Institute State wireless Zigbee module（5）Including router node（6）And coordinator node（7）.
8. A kind of 8. high-voltage breaker operation mechanism humiture on-Line Monitor Device according to claim 1, it is characterised in that：Institute State control core module（9）For singlechip chip or embedded system or PLC system.
9. A kind of 9. high-voltage breaker operation mechanism humiture on-Line Monitor Device according to claim 8, it is characterised in that：Institute State control core module（9）For CC2530 chips.