CN215493900U

CN215493900U - Abnormal alarm device for electric signals

Info

Publication number: CN215493900U
Application number: CN202121960935.6U
Authority: CN
Inventors: 王宇杰; 张月平; 李永强; 渠双双; 苏大体
Original assignee: Zhoukou Normal University
Current assignee: Zhoukou Normal University
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-01-11
Anticipated expiration: 2031-08-20

Abstract

The utility model relates to an electric signal abnormity alarm device, which belongs to the technical field of electric safety alarm and comprises an electric signal acquisition module, a controller and an alarm module, wherein the input end of an electric signal acquisition unit is connected with an electric network and used for directly acquiring electric signals of the electric network, and the output end of the controller is connected with the signal input end of the alarm module.

Description

Abnormal alarm device for electric signals

Technical Field

The utility model belongs to the technical field of electricity safety alarm, and relates to an alarm device, in particular to an electric signal abnormity alarm device.

Background

In the use of the current power utilization network, high-power electric appliances are more and more, so that sudden change of signals of voltage or current is easy to occur, the sudden change of the voltage is also called as a burr or a peak, the electric equipment or the power utilization network is easy to damage, and in severe cases, electric sparks can be generated by large burrs to cause fire danger.

The current market lacks the control and the alarm device to burr in the power consumption network, can't realize the production quantity of accurate record burr in the certain time.

Disclosure of Invention

In order to solve the problems, the utility model designs an electric signal abnormity alarm device which has the function of accurately detecting the frequency and the quantity of burrs in an electric network.

The specific technical scheme of the utility model is as follows:

the utility model provides an unusual alarm device of signal of telecommunication, includes signal of telecommunication collection module and controller and alarm module, the power consumption network is connected to the input of signal of telecommunication collection unit for directly gather the signal of telecommunication of power consumption network, alarm module's signal input part is connected to the output of controller, this alarm device still includes crest collection module and count module, crest collection module's input is connected signal of telecommunication collection module's output, count module's input is connected to crest collection module's output, count module's output is connected the signal input part of controller.

As a further optimization of the scheme, the wave crest acquisition module comprises a triode Q1 and a triode Q2, the base electrode of the triode Q1 is used as the input end of the peak collecting module through resistors R1 and R5 which are connected in series, a resistor R2 is connected in series between the collector of the triode Q1 and VCC between voltage sources, the emitter of the triode Q1 is grounded, a resistor R3 is connected in series between the series connection point of the collector of the transistor Q1 and the resistor R2 and the base of the transistor Q2, a resistor R4 is connected in series between the emitter of the triode Q2 and the voltage source VCC, the emitter of the triode Q2 is grounded, the series connection point of the collector of the triode Q2 and the resistor R4 is used as the output end of the peak collecting module, the series connection point of the resistors R5 and R1 is connected with the series connection point of the collector of the triode Q2 and the resistor R4 through the resistor R6.

As a further optimization of the scheme, the counting module comprises a cascaded counter chip, and the model of the counter chip is 74161D.

As a further optimization of the scheme, the counting module comprises a counter U1 and a counter U2, the CLK pin of the counter U1 and the CLK pin of the counter U2 are connected in parallel to serve as the input end of the counting module, and the ENP pin, the ENT pin and the CLK pin of the counter U1 are connected in parallel to serve as the input end of the counting module

The pin is connected with a voltage source VCC, the RCO pin of the counter U1 is connected with the ENP and ENT pins of the counter U2, the QA, QB, QC and QD pins of the counter U1 are used as the output ends V0, V1, V2 and V3 of the counting module, and the RCO pin of the counter U2 is connected with the ENP and ENT pins of the counter U2

The pin is connected with a voltage source VCC, QA, QB, QC and QD pins of the counter U2 are used as output ends V4, V5, V6 and V7 of the counting module, and an RCO pin of the counter U2 is used as a carry output end Vout of the output end of the counting module.

The principle and the beneficial effects of the utility model are as follows:

according to the utility model, the electric signal acquisition device is directly connected with the power utilization network, the electric signal acquisition device comprises an isolation unit, the complex power utilization network and a rear-stage circuit can be divided, the stability of the alarm device is guaranteed, the electric signal acquisition device processes the obtained electric signal and transmits the processed electric signal to the wave crest acquisition module, the wave crest acquisition module can set a highest threshold value, a square wave is output to enter the constant unit of the counting module when the electric signal exceeds the threshold value, and the counter is increased by one when the counting module receives a square wave signal, so that burrs can be accurately counted and output.

Drawings

FIG. 1 is a block diagram of the novel structure of the present invention;

FIG. 2 is a schematic circuit diagram of a peak acquisition module according to the present invention;

fig. 3 is a circuit schematic of the counting module of the present invention.

Detailed Description

The technical solutions of the present invention are further described in detail below with reference to specific examples and drawings, but the scope and implementation of the present invention are not limited thereto.

In the concrete embodiment, according to the method,

as shown in the attached drawing 1 of the specification, the electric signal abnormity warning device comprises an electric signal acquisition module and a controller, wherein the input end of the electric signal acquisition unit is connected with an electricity utilization network and is used for directly acquiring an electric signal of the electricity utilization network.

The input end of the electric signal acquisition module is connected with an electricity utilization network to be detected, an optical coupling isolation chip exists in the electric signal acquisition unit as a separation unit, and due to the fact that electric signals in the electricity utilization network are complex, overlarge current possibly exists and exceeds the bearing range of a rear-stage detection circuit, the rear-stage circuit is easy to damage, so that the optical coupling plays a role in isolation, acquired current signals are converted into electric signals in the reasonable range which can be identified by the rear-stage circuit, and the stability of the device is improved. The wave crest acquisition module can convert the voltage signal of the burr into the square wave and then output the square wave, so that a rear-stage circuit can stably obtain the square wave signal, and the square wave signal can be used as a clock signal and has stable characteristics, so that the stable counting of the counter module is facilitated after the square wave signal is conveyed to the rear-stage counting module. The number of square waves is effectively counted, so that the number of burrs exceeding the threshold position can be obtained. The data input controller that the counter will make statistics of, thereby the controller is through handling and calculation back, can export alarm signal through alarm module, counter and controller all link simultaneously has output device, counter lug connection output device, can only manage the quantity of burr in the display point signal, also can be used for detecting, signal of telecommunication collection module, crest collection module and count module have or not break down, increase the convenience that equipment detected, the controller also is connected with output device, can export the data that the processing is good, the data that the controller was exported is through handling, consequently, there is stronger human-computer interaction nature.

As shown in fig. 2 of the specification, the peak collecting module includes a transistor Q1 and a transistor Q2, the base electrode of the triode Q1 is used as the input end of the peak collecting module through resistors R1 and R5 which are connected in series, a resistor R2 is connected in series between the collector of the triode Q1 and VCC between voltage sources, the emitter of the triode Q1 is grounded, a resistor R3 is connected in series between the series connection point of the collector of the transistor Q1 and the resistor R2 and the base of the transistor Q2, a resistor R4 is connected in series between the emitter of the triode Q2 and the voltage source VCC, the emitter of the triode Q2 is grounded, the series connection point of the collector of the triode Q2 and the resistor R4 is used as the output end of the peak collecting module, the series connection point of the resistors R5 and R1 is connected with the series connection point of the collector of the triode Q2 and the resistor R4 through the resistor R6.

The triodes Q1 and Q2 play a role of an inverter in the module, so that the circuit forms a Schmitt trigger, and the threshold range of the detected wave crest can be adjusted by adjusting the sizes of R5 and R6 according to the principle of the Schmitt trigger. The resistors R5 and R6 may also be varistors, which may increase the adjustability of the alarm device.

The counting module comprises cascaded counter chips, and the type of the counter chip is 74161D. The 74161 counter is a 16-bit counter.

The counting module comprises a counterU1 and a counter U2, the CLK pin of the counter U1 and the CLK pin of the counter U2 are connected in parallel as the input end of the counting module, the ENP pin, the ENT pin and the CLK pin of the counter U1 are connected in parallel as the input end of the counting module, and the

In the scheme, two 16-bit counters are adopted for cascading to form a 256-bit counter, wherein an ENP pin and an ENT pin are used for receiving carry signals, when a signal 1 is received at the same time, the counter is increased by one every time a clock pulse is received, an RCO pin is the carry pin of the counter, when the counter is full of counting, the RCO pin outputs a high potential signal, and meanwhile, the counter is cleared. Therefore, the RCO pin of the U1 is connected with the ENP pin and the ENT pin of the U2, when the U2 receives a carry signal and a clock signal at the same time, the U2 adds one, and similarly, the counter can be expanded by the method, and higher-order counting direct output is realized. The carry output bit of the last bit is connected with the controller, and the counting period can be accurately recorded.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an unusual alarm device of signal of telecommunication, includes signal of telecommunication collection module and controller and alarm module, the power consumption network is connected to the input of signal of telecommunication collection unit for directly gather the signal of telecommunication of power consumption network, alarm module's signal input part is connected to the output of controller, its characterized in that, this alarm device still includes crest collection module and count module, crest collection module's input is connected the output of signal of telecommunication collection module, count module's input is connected to crest collection module's output, count module's output is connected the signal input part of controller.

2. The electrical signal abnormality warning device according to claim 1, wherein said peak collecting module includes a transistor Q1 and a transistor Q2, the base electrode of the triode Q1 is used as the input end of the peak collecting module through resistors R1 and R5 which are connected in series, a resistor R2 is connected in series between the collector of the triode Q1 and VCC between voltage sources, the emitter of the triode Q1 is grounded, a resistor R3 is connected in series between the series connection point of the collector of the transistor Q1 and the resistor R2 and the base of the transistor Q2, a resistor R4 is connected in series between the emitter of the triode Q2 and the voltage source VCC, the emitter of the triode Q2 is grounded, the series connection point of the collector of the triode Q2 and the resistor R4 is used as the output end of the peak collecting module, the series connection point of the resistors R5 and R1 is connected with the series connection point of the collector of the triode Q2 and the resistor R4 through the resistor R6.

3. The electrical signal abnormality warning device according to claim 1, wherein the counting module includes a cascade of counter chips, and the counter chips are 74161D in model.

4. The electrical signal abnormality warning device according to claim 1, wherein said counting module includes a counter U1 and a counter U2, a CLK pin of said counter U1 and a CLK pin of said counter U2 are connected in parallel as an input terminal of said counting module, and said counting module is characterized in thatENP pin, ENT pin and of the counter U1

5. The electrical signal abnormality warning device according to claim 4, wherein the output terminals V0-V7 of said counter are directly connected to an output device.