CN212906578U

CN212906578U - System abnormity alarm device

Info

Publication number: CN212906578U
Application number: CN202021860178.0U
Authority: CN
Inventors: 卢涛月
Original assignee: Hebei Anhu Internet Of Things Technology Co ltd
Current assignee: Hebei Anhu Internet Of Things Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-04-06
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to a system abnormity alarm device, which belongs to the technical field of public security equipment safety, and comprises a plurality of electric equipment, wherein each electric equipment comprises an external power supply, a voltage stabilizing module and a direct current electric system, and is characterized in that the alarm device also comprises a buzzing alarm module, the external power supply is connected with the voltage stabilizing module in a power supply way, the output end of the voltage stabilizing module passes through the direct current electric system and the divider resistor and is grounded, the remote end of the divider resistor is connected with a detection module for detecting the voltage range, the detection module is connected with the buzzing alarm module through a connector and a controller, each piece of equipment in the management center of the public security equipment is provided with the detection module, the detection module is arranged at the tail end of the direct current electric system in the equipment to measure whether the voltage flowing through the direct current electric system in the equipment is normal or not, and can send an alarm through the buzzing, prompt in time.

Description

System abnormity alarm device

Technical Field

The utility model belongs to the technical field of the security of public security equipment, a alarm device is related to, specifically is system abnormity alarm device.

Background

The management of the public security equipment relates to social security, is the important factor for maintaining social stability, and is managed by a public security equipment management center, and the equipment of the management center comprises an intelligent checking terminal, a management host, an image acquisition instrument, an RFID printer, an RFID reader-writer, an RFID identification terminal, an inquiry all-in-one machine and the like, wherein the intelligent checking terminal, the image acquisition instrument, the RFID printer, the RFID reader-writer, the RFID identification terminal, the inquiry all-in-one machine and the like comprise a direct-current power.

When the direct current power utilization system has a problem, the electric meter can display normal power utilization of equipment, the equipment cannot normally realize functions, workers cannot be informed in time, and equipment recording and statistics are seriously influenced if the situation occurs, and even social safety is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, designed a system abnormity alarm device, had the normal use and the normal warning of guaranteeing equipment control circuit.

The utility model discloses a concrete technical scheme is:

the utility model provides a system abnormity alarm device, includes a plurality of consumer, and every consumer includes outer power, voltage stabilizing module and direct current power consumption system, its characterized in that, alarm device still includes buzzing alarm module, outer power is connected with the power supply of voltage stabilizing module, voltage stabilizing module's output passes through direct current power consumption system and divider resistance ground connection, divider resistance's remote ground end is connected with the detection module who is used for detecting the voltage range, detection module connects buzzing alarm module through connecing connector and controller.

The buzzer alarm module comprises a D trigger U6, a triode Q1 and a buzzer, the D pin of the D trigger U6 is used as the control end of an input end connection controller of the buzzer alarm module, the CLK pin of the D trigger U6 is normally high, the Q pin of the D trigger U6 is connected with the base electrode of a triode Q1 through a resistor R6, the buzzer is connected between a voltage source and the collector electrode of the triode Q1 in series, and the emitter electrode of the triode is grounded.

The detection module comprises a comparator U1, a comparator U2, varistors R1, R3 and R5, wherein the varistors R5, R1 and R3 are sequentially connected between a voltage source VCC and the ground in series, a series point of the varistors R5 and R1 is connected with the reverse end of the comparator U1, the homodromous end of the comparator U1 and the reverse end of the comparator U2 are connected to serve as input ends of the detection module, a series point of the varistors R3 and R1 is connected with the homodromous end of the comparator U2, and output ends of the comparators U1 and U2 are connected to serve as output ends of the detection module.

The voltage stabilizing module comprises a voltage stabilizer U5, wherein an IN pin of the voltage stabilizer U5 serves as an input end of the voltage stabilizing module, an OUT pin of the voltage stabilizer U5 serves as an output end of the voltage stabilizing module, the OUT pin of the voltage stabilizer U5 is grounded through a resistor R4 and a rheostat RP1 which are connected IN series IN sequence, and a series point of the resistor R4 and the rheostat RP1 is connected with an ADJ pin of the voltage stabilizer.

A rheostat RP2 is connected between the series connection point of the D trigger U6 and the resistor R6 and the ground, a diode D1 is connected in parallel to the rheostat RP2, and the anode of the diode D1 is grounded.

The output end of the detection module is also connected with a signal processing circuit, and the signal processing circuit comprises two inverters U3 and U4 which are connected in series.

And a capacitor C2 and a capacitor C3 are respectively connected between the input end and the output end of the voltage stabilizing module and the ground.

A capacitor C1 and a resistor R2 which are connected in parallel are connected between the same-direction end of the comparator U1 and the ground.

The utility model has the advantages that:

each equipment in the management center of the public security equipment is provided with a detection module, the detection module is arranged at the tail end of a direct current power utilization system in the equipment, whether the voltage of the direct current power utilization system flowing through the equipment is normal or not is measured, and if a problem occurs, an alarm can be given out through a buzzing alarm module to prompt in time.

Drawings

Fig. 1 is a schematic block diagram of the present invention.

Fig. 2 is a circuit diagram of the buzzer alarm module of the present invention.

Fig. 3 is a circuit diagram of the middle detection module of the present invention.

Fig. 4 is a circuit diagram of the voltage stabilizing module of the present invention.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the following specific embodiments and accompanying drawings, but the scope of protection and the implementation of the present invention are not limited thereto.

As shown in the attached drawing 1 of the specification, the system abnormity warning device comprises a plurality of electric devices, each electric device comprises an external power supply, a voltage stabilizing module and a direct current electric system, the warning device further comprises a buzzing warning module, the external power supply is in power supply connection with the voltage stabilizing module, the output end of the voltage stabilizing module is grounded through the direct current electric system and a divider resistor, the far-end of the divider resistor is connected with a detection module for detecting a voltage range, and the detection module is connected with the buzzing warning module through a connector and a controller.

Every equipment in the management center of the public security device is provided with a detection module, the normal use of the detection module can be guaranteed by a divider resistor, the detection module is arranged at the tail end of a direct-current power utilization system in the equipment, the voltage at the tail end of the direct-current power utilization system is collected and compared with a reference threshold voltage to obtain the power utilization condition of the equipment, the detection module can monitor the power utilization condition of the equipment in real time, the detection module in every equipment of the management center is connected with a controller through a connector, the output end of the controller is connected with a buzzing alarm module, if a problem occurs, an alarm can be sent out through the buzzing alarm module, and prompt is timely given.

As shown in fig. 2, the buzzer alarm module includes a D flip-flop U6, a transistor Q1 and a buzzer, the D pin of the D flip-flop U6 is connected to the control terminal of the controller as the input terminal of the buzzer alarm module, the CLK pin of the D flip-flop U6 is normally high, the Q pin of the D flip-flop U6 is connected to the base of the transistor Q1 through a resistor R6, the buzzer is connected in series between the voltage source and the collector of the transistor Q1, and the emitter of the transistor is grounded.

When the electricity utilization condition has a problem, the controller sends a high-potential signal to the D trigger U6, the CLK pin of the D trigger is connected with the high potential, so that the output end of the D trigger U6 outputs the high-potential signal, the triode Q1 is conducted, the buzzer is connected, and the alarm is given out. In normal time, the controller sends a low-potential signal through the D trigger, and the buzzer is disconnected and does not work.

As shown in fig. 3 of the specification, the detection module includes a comparator U1, a comparator U2, a varistor R1, R3 and R5, the varistors R5, R1 and R3 are sequentially connected in series between a voltage source VCC and ground, a series point of the varistors R5 and R1 is connected to an inverting terminal of the comparator U1, a homodromous terminal of the comparator U1 and an inverting terminal of the comparator U2 are connected as an input terminal of the detection module, a series point of the varistors R3 and R1 is connected to a homodromous terminal of the comparator U2, and output terminals of the comparators U1 and U2 are connected as output terminals of the detection module.

The voltage control of each series point among the varistors R5, R1 and R3 is realized, the highest voltage is input to the reverse end of the comparator U1, the lowest potential is input to the same-direction end of the comparator U2 by adjusting the varistors R5, R1 and R3, when the input voltage of the detection module is higher than the highest voltage during normal use, the comparator U1 outputs a high-potential signal, the comparator U1 and the comparator U2 are in a OR relationship, and the detection module outputs a high-potential signal; when the input voltage of the detection module is lower than the lowest voltage during normal use, the comparator U2 outputs a high-potential signal, the output of the detection module is the high-potential signal, and the two conditions are that the direct-current power utilization system is over-electrified and has a problem.

When the over-current is normal, the voltage of the same-direction terminal of the comparator U1 is smaller than that of the reverse-direction terminal, the voltage of the reverse-direction terminal of the comparator U2 is larger than that of the same-direction terminal, and the output of the detection module is low.

As shown IN fig. 4, the voltage regulation module includes a voltage regulator U5, the IN pin of the voltage regulator U5 is used as the input terminal of the voltage regulation module, the OUT pin of the voltage regulator U5 is used as the output terminal of the voltage regulation module, the OUT pin of the voltage regulator U5 is grounded through a resistor R4 and a rheostat RP1 which are connected IN series, and the series point of the resistor R4 and the rheostat RP1 is connected with the ADJ pin of the voltage regulator.

The voltage stabilizer U5 of the voltage stabilizing module can output different voltages as a stable voltage source according to requirements.

The output end of the detection module is further connected with a signal processing circuit as described in the description of fig. 3, and the signal processing circuit comprises two inverters U3 and U4 connected in series.

The inverters U3 and U4 are Schmidt inverters with the same model, and can play a role in waveform arrangement and circuit loading capacity improvement.

As shown in fig. 4, a capacitor C2 and a capacitor C3 are connected between the input end and the output end of the voltage stabilizing module and the ground respectively. The capacitor C2 and the capacitor C3 play a role in filtering, and the voltage in the input and output voltage stabilizer U5 is guaranteed to be more stable.

A capacitor C1 and a resistor R2 which are connected in parallel are connected between the same-direction end of the comparator U1 and the ground. The capacitor C1 and the resistor R2 play a role in filtering and voltage division.

Claims

1. The utility model provides a system abnormity alarm device, includes a plurality of consumer, and every consumer includes outer power, voltage stabilizing module and direct current power consumption system, its characterized in that, alarm device still includes buzzing alarm module, outer power is connected with the power supply of voltage stabilizing module, voltage stabilizing module's output passes through direct current power consumption system and divider resistance ground connection, divider resistance's remote ground end is connected with the detection module who is used for detecting the voltage range, detection module connects buzzing alarm module through connecing connector and controller.

2. The system abnormality warning device according to claim 1, characterized in that: the buzzer alarm module comprises a D trigger U6, a triode Q1 and a buzzer, the D pin of the D trigger U6 is used as the control end of an input end connection controller of the buzzer alarm module, the CLK pin of the D trigger U6 is normally high, the Q pin of the D trigger U6 is connected with the base electrode of a triode Q1 through a resistor R6, the buzzer is connected between a voltage source and the collector electrode of the triode Q1 in series, and the emitter electrode of the triode is grounded.

3. The system abnormality warning device according to claim 1, characterized in that: the detection module comprises a comparator U1, a comparator U2, varistors R1, R3 and R5, wherein the varistors R5, R1 and R3 are sequentially connected between a voltage source VCC and the ground in series, a series point of the varistors R5 and R1 is connected with the reverse end of the comparator U1, the homodromous end of the comparator U1 and the reverse end of the comparator U2 are connected to serve as input ends of the detection module, a series point of the varistors R3 and R1 is connected with the homodromous end of the comparator U2, and output ends of the comparators U1 and U2 are connected to serve as output ends of the detection module.

4. The system abnormality warning device according to claim 1, characterized in that: the voltage stabilizing module comprises a voltage stabilizer U5, wherein an IN pin of the voltage stabilizer U5 serves as an input end of the voltage stabilizing module, an OUT pin of the voltage stabilizer U5 serves as an output end of the voltage stabilizing module, the OUT pin of the voltage stabilizer U5 is grounded through a resistor R4 and a rheostat RP1 which are connected IN series IN sequence, and a series point of the resistor R4 and the rheostat RP1 is connected with an ADJ pin of the voltage stabilizer.

5. The system abnormality warning device according to claim 2, characterized in that: a rheostat RP2 is connected between the series connection point of the D trigger U6 and the resistor R6 and the ground, a diode D1 is connected in parallel to the rheostat RP2, and the anode of the diode D1 is grounded.

6. The system abnormality warning device according to claim 3, characterized in that: the output end of the detection module is also connected with a signal processing circuit, and the signal processing circuit comprises two inverters U3 and U4 which are connected in series.

7. The system abnormality warning device according to claim 4, characterized in that: and a capacitor C2 and a capacitor C3 are respectively connected between the input end and the output end of the voltage stabilizing module and the ground.

8. The system abnormality warning device according to claim 3, characterized in that: a capacitor C1 and a resistor R2 which are connected in parallel are connected between the same-direction end of the comparator U1 and the ground.