CN210777034U

CN210777034U - Anti-theft alarm main unit

Info

Publication number: CN210777034U
Application number: CN201922190671.XU
Authority: CN
Inventors: 王海涛
Original assignee: Guangzhou Zhengxin Electronic Technology Co ltd
Current assignee: Guangzhou Zhengxin Electronic Technology Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-06-16
Anticipated expiration: 2029-12-06

Abstract

The utility model relates to the field of security protection, and discloses a burglar alarm host, which comprises a microprocessor, a wireless communication module, a keyboard module, a listening head, a voice module, an acousto-optic alarm module and a power supply module, wherein the microprocessor is respectively connected with the wireless communication module, the keyboard module, the listening head, the voice module, the acousto-optic alarm module and the power supply module; the power supply module comprises a power supply, a first resistor, a first diode, a second resistor, a third resistor, a fifth diode, a first triode, a first storage battery, a fourth resistor, a first operational amplifier, a fifth resistor, a second operational amplifier, a sixth resistor, a second triode, a second storage battery, a seventh resistor, a third diode and a fourth diode. Implement the utility model discloses a burglar alarm host computer has following beneficial effect: the circuit structure is simpler, the cost is lower, convenient maintenance, the security and the reliability of circuit are higher.

Description

Anti-theft alarm main unit

Technical Field

The utility model relates to a security protection field, in particular to burglar alarm host computer.

Background

The anti-theft alarm host is a system which automatically detects invasion in a defense-deploying monitoring area by a physical method or an electronic technology, generates an alarm signal, prompts an operator on duty to alarm the area and displays possible countermeasures. The anti-theft alarm host is an important facility for preventing accidents such as robbery, theft and the like. Once an emergency happens, the accident site can be accurately displayed in the security control center through the sound-light alarm signal, so that emergency measures can be quickly taken. The anti-theft alarm host, the access control system, the closed circuit television monitoring system, the visitor intercom system, the electronic patrol system and the like form a safety precaution system. Fig. 1 is a schematic circuit diagram of a power supply portion of a conventional burglar alarm main unit, and it can be seen from fig. 1 that the power supply portion of the conventional burglar alarm main unit uses many components, has a complex circuit structure and high hardware cost, and is inconvenient to maintain. In addition, because the power supply part of the traditional burglar alarm host lacks corresponding circuit protection functions, for example: the safety and reliability of the circuit are poor due to the lack of the current-limiting protection function.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a circuit structure comparatively simple, the cost is lower, the security and the higher burglar alarm host computer of reliability of convenient maintenance, circuit.

The utility model provides a technical scheme that its technical problem adopted is: the anti-theft alarm host is constructed and comprises a microprocessor, a wireless communication module, a keyboard module, a monitoring head, a voice module, an acousto-optic alarm module and a power supply module, wherein the microprocessor is respectively connected with the wireless communication module, the keyboard module, the monitoring head, the voice module, the acousto-optic alarm module and the power supply module;

the power supply module comprises a power supply, a first resistor, a first diode, a second resistor, a third resistor, a fifth diode, a first triode, a first storage battery, a fourth resistor, a first operational amplifier, a fifth resistor, a second operational amplifier, a sixth resistor, a second triode, a second storage battery, a seventh resistor, a third diode and a fourth diode, wherein the power supply is respectively connected with one end of the first resistor, one end of the second resistor, the anode of the fifth diode, one end of the fifth resistor, the emitter of the second triode, one end of the seventh resistor and the anode of the third diode, the other end of the second resistor is respectively connected with the anode of the first diode and one end of the third resistor, the cathode of the first diode is respectively connected with the anode of the second diode, the cathode of the second diode, the anode of the second diode, the third diode and the cathode of the third diode, The other end of the third resistor, the collector of the first triode, the anode of the first storage battery and one end of the fourth resistor are connected, the emitter of the first triode is connected with the cathode of the fifth diode, the base of the first triode is connected with the output end of the first operational amplifier, the non-inverting input end of the first operational amplifier is connected with one end of the fourth resistor, the inverting input end of the first operational amplifier is connected with the other end of the fifth resistor and the inverting input end of the second operational amplifier respectively, the output end of the second operational amplifier is connected with the base of the second triode, the non-inverting input end of the second operational amplifier is connected with one end of the sixth resistor, the collector of the second triode is connected with the other end of the sixth resistor and the anode of the second storage battery respectively, The other end of the seventh resistor, the cathode of the third diode and the anode of the fourth diode are connected, and the other end of the first resistor is respectively connected with the cathode of the first storage battery and the cathode of the second storage battery.

In the burglar alarm main unit of the present invention, the fifth diode has a model of S-272T.

In the burglar alarm host, the power supply module further includes a sixth diode, an anode of the sixth diode is connected to one end of the fifth resistor, and a cathode of the sixth diode is connected to an emitter of the second triode.

In the burglar alarm main unit of the present invention, the sixth diode has a model of S-123T.

In the burglar alarm host of the present invention, the first triode is a PNP type triode.

In the burglar alarm host of the present invention, the second triode is a PNP type triode.

In the burglar alarm host of the present invention, the first operational amplifier and the second operational amplifier are LM321 in model.

In the burglar alarm host, the wireless communication module is any one or any combination of 5G communication module, 4G communication module, Bluetooth module, WiFi module, GSM module, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module and LoRa module.

Implement the utility model discloses a burglar alarm host computer has following beneficial effect: the intelligent monitoring system is provided with a microprocessor, a wireless communication module, a keyboard module, a monitoring head, a voice module, an audible and visual alarm module and a power supply module; the power supply module comprises a power supply, a first resistor, a first diode, a second resistor, a third resistor, a fifth diode, a first triode, a first storage battery, a fourth resistor, a first operational amplifier, a fifth resistor, a second operational amplifier, a sixth resistor, a second triode, a second storage battery, a seventh resistor, a third diode and a fourth diode.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic circuit diagram of a power supply portion of a conventional burglar alarm main unit;

FIG. 2 is a schematic structural diagram of an embodiment of the burglar alarm main unit of the present invention;

fig. 3 is a schematic circuit diagram of the power supply module in the embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the embodiment of the burglar alarm main unit of the present invention, the schematic structural diagram of the burglar alarm main unit is shown in fig. 2. In fig. 2, the burglar alarm host includes a microprocessor 1, a wireless communication module 2, a keyboard module 3, a monitoring head 4, a voice module 5, an audible and visual alarm module 6, and a power supply module 7, wherein the microprocessor 1 is connected to the wireless communication module 2, the keyboard module 3, the monitoring head 4, the voice module 5, the audible and visual alarm module 6, and the power supply module 7, respectively.

The wireless communication module 2 is used for performing information interaction with an external remote monitoring device and receiving a wireless alarm signal sent by the external remote monitoring device, the voice module 5 sends out alarm information in a recording playing mode, the sound-light alarm module 6 is used for giving an alarm in a sound-light alarm mode, and the microprocessor 1 can report the alarm information to a remote service platform and receive and execute a control instruction sent by the remote service platform.

After the wireless communication module 2 receives the alarm signal, the microprocessor 1 triggers the voice module 5 and the acousto-optic alarm module 6 to make corresponding alarm response in a field alarm mode. The voice module 5 can dial a telephone number (a fixed telephone or a mobile phone number) and an alarm center number, and when the alarm condition is triggered, the dialing is circulated.

The keyboard module 3 can set relevant parameters such as recording, monitoring, remote control, telephone line detection and the like. The monitoring head 4 can remotely monitor the scene alarm condition.

In this embodiment, the wireless communication module 2 is any one or a combination of any several of a 5G communication module, a 4G communication module, a bluetooth module, a WiFi module, a GSM module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module, and a LoRa module. Through setting up multiple wireless communication mode, not only can increase the flexibility of wireless communication mode, can also satisfy the demand of different users and different occasions. Especially, when adopting the loRa module, its communication distance is far away, and communication performance is comparatively stable, is applicable to the occasion that requires the communication quality to be higher. The adoption of the 5G communication mode can achieve high data rate, reduce delay, save energy, reduce cost, improve system capacity and realize large-scale equipment connection.

In this embodiment, the microprocessor 1, the keyboard module 3, the monitoring head 4, the voice module 5, and the acousto-optic alarm module 6 are all implemented by using the structure in the prior art, and the working principle thereof is also the working principle in the prior art, which is not described in detail herein.

Fig. 3 is a schematic circuit diagram of a power supply module in this embodiment, in fig. 3, the power supply module 7 includes a power supply VCC, a first resistor R1, a first diode D1, a second diode D2, a second resistor R2, a third resistor R3, a fifth diode D5, a first transistor Q1, a first battery E1, a fourth resistor R4, a first operational amplifier a1, a fifth resistor R5, a second operational amplifier a2, a sixth resistor R6, a second transistor Q2, a second battery E2, a seventh resistor R7, a third diode D7, and a fourth diode D7, wherein the power supply VCC is respectively connected to one end of the first resistor R7, one end of the second resistor R7, an anode of the fifth diode D7, one end of the fifth resistor R7, an emitter of the second transistor Q7, one end of the seventh resistor R7, and an anode of the third diode D7, and the other end of the first resistor R7 are respectively connected to the anode of the first resistor R7, the cathode of the first diode D1 is connected with the anode of the second diode D2, the other end of the third resistor R3, the collector of the first triode Q1, the anode of the first storage battery E1 and one end of the fourth resistor R4, the emitter of the first triode Q1 is connected with the cathode of the fifth diode D5, the base of the first triode Q1 is connected with the output end of the first operational amplifier a1, the non-inverting input end of the first operational amplifier a1 is connected with one end of the fourth resistor R4, the inverting input end of the first operational amplifier a1 is connected with the other end of the fifth resistor R5 and the inverting input end of the second operational amplifier a1, the output end of the second operational amplifier a2 is connected with the base of the second triode Q2, the non-inverting input end of the second operational amplifier a2 is connected with one end of the sixth resistor R6, the collector of the second triode Q2 is connected with the other end of the sixth resistor R6 and the anode of the second storage battery E2, The other end of the seventh resistor R7, the cathode of the third diode D3 and the anode of the fourth diode D4 are connected, and the other end of the first resistor R1 is connected to the cathode of the first battery E1 and the cathode of the second battery E2, respectively.

Compared with the power supply part of the traditional anti-theft alarm host in the figure 1, the power supply module 7 has the advantages of fewer used components, simpler circuit structure and convenient maintenance, and can reduce the hardware cost due to the saving of some components. In addition, the fifth diode D5 is a current limiting diode for current limiting protection of the emitter current of the first transistor Q1. The current limiting protection principle is as follows: when the emitter current of the first triode Q1 is large, the emitter current of the first triode Q1 can be reduced by the fifth diode D5 to keep the first triode Q1 in a normal working state, and the situation that components in the circuit are burnt out due to too large current is avoided, so that the safety and reliability of the circuit are improved. It should be noted that in the present embodiment, the fifth diode D5 has a model number of S-272T. Of course, in practical applications, the fifth diode D5 may also be another type of diode with the same function.

The working principle of the power supply module 7 is as follows: when the circuit is powered on, the power supply VCC provides +5V working voltage for the first operational amplifier a1 to the second operational amplifier a2, the potentials of the inverting input ends of the first operational amplifier a1 and the second operational amplifier a2 are higher than the potential sampled by the non-inverting input end thereof, therefore, the output ends of the first operational amplifier a1 and the second operational amplifier a2 are both at low level, the first triode Q1 and the second triode Q2 are conducted, the power supply VCC respectively charges the first storage battery E1 and the second storage battery E2 in a constant current mode through the c-E poles of the first triode Q1 and the second triode Q2, the fourth diode D4 and the second diode D2 are lighted by green light to indicate charging, and the first diode D1 and the third diode D3 are extinguished by the triode short circuit.

When the battery is fully charged, when the potential fed back from the non-inverting input terminal of the second operational amplifier a2 rises to or exceeds the potential of the inverting input terminal, the comparator is turned over, the output terminals of the first operational amplifier a1 and the second operational amplifier a2 output a high level, the first triode Q1 and the second triode Q2 are cut off to achieve a voltage limiting function, the first diode D1 and the third diode D3 emit red light to indicate that charging is terminated, and simultaneously, the power supply respectively charges the first storage battery E1 and the second storage battery E2 in a floating manner through the second resistor R2, the third resistor R3 and the seventh resistor R7.

In this embodiment, the first operational amplifier a1 and the second operational amplifier a2 are both LM321 in model. Of course, in practical applications, the first operational amplifier a1 and the second operational amplifier a2 may also use other types of diodes having the same function.

In this embodiment, the first transistor Q1 is a PNP transistor, and the second transistor Q2 is a PNP transistor, but in practical applications, the first transistor Q1 and the second transistor Q2 may both be NPN transistors, but the circuit structure is also changed accordingly.

In this embodiment, the power supply module 7 further includes a sixth diode D6, an anode of the sixth diode D6 is connected to one end of the fifth resistor R5, and a cathode of the sixth diode D6 is connected to an emitter of the second transistor Q2. The sixth diode D6 is a current limiting diode for current limiting protection of the emitter current of the second transistor Q2. The current limiting protection principle is as follows: when the emitter current of the second triode Q2 is large, the sixth diode D6 can reduce the emitter current of the second triode Q2 to keep the second triode Q2 in a normal operating state, so that the device in the circuit is not burned out due to too large current, and the safety and reliability of the circuit are further enhanced. It should be noted that in the present embodiment, the model of the sixth diode D6 is S-123T. It should be noted that in this embodiment, other types of diodes having the same function may also be used as the sixth diode D6.

In a word, in this embodiment, compared with the power supply part of the conventional burglar alarm host, the power supply module 7 uses fewer components, has a simpler circuit structure, is convenient to maintain, and can reduce the hardware cost due to the fact that some components are saved. In addition, the power supply module 7 is provided with a current limiting diode, so that the safety and the reliability of the circuit are high.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-theft alarm host is characterized by comprising a microprocessor, a wireless communication module, a keyboard module, a listening head, a voice module, an acousto-optic alarm module and a power supply module, wherein the microprocessor is respectively connected with the wireless communication module, the keyboard module, the listening head, the voice module, the acousto-optic alarm module and the power supply module;

2. The burglar alarm of claim 1, wherein said fifth diode is of type S-272T.

3. The burglar alarm main unit according to claim 2, wherein said power supply module further comprises a sixth diode, an anode of said sixth diode is connected to one end of said fifth resistor, and a cathode of said sixth diode is connected to an emitter of said second transistor.

4. The burglar alarm of claim 3, wherein said sixth diode is of type S-123T.

5. The burglar alarm main unit according to any one of claims 1 to 4, wherein said first transistor is a PNP type transistor.

6. The burglar alarm main unit according to any one of claims 1 to 4, wherein said second transistor is a PNP type transistor.

7. The burglar alarm main unit according to any one of claims 1 to 4, wherein said first operational amplifier and said second operational amplifier are each of type LM 321.

8. The burglar alarm host according to any of claims 1 to 4, wherein said wireless communication module is any one or any combination of 5G communication module, 4G communication module, Bluetooth module, WiFi module, GSM module, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module and LoRa module.