CN208444181U - A kind of Intelligent campus classroom monitoring management system - Google Patents

Abstract

The utility model discloses a kind of Intelligent campus classroom monitoring management systems, including control module, control module is connected with power supply module, infrared detection module, fingerprint identification module, display module and monitoring module, monitoring module includes multiple cameras, control module includes chip IC 1, the pin 3 of the IC1 is connected with one end of resistance R1, one end of resistance R2, one end of resistance R4, the anode of diode D1, one end of resistance R3, one end of capacitor C1, one end of capacitor C2 and a fixing end of slide rheostat RP, and it is connected with the pin of IC1 2, the cathode of diode D1 is connected with the anode of diode D2, the cathode of diode D2 is connected with input terminal U1, and it is connected with the other end of resistance R1, the pin 4 of IC1 and the other end of resistance R2.The utility model is designed reasonably, structure is simple, can protect in mains ripple to camera, controls the on-off of camera power supply, greatly reduces maintenance cost.

Description

A kind of Intelligent campus classroom monitoring management system

Technical field

The utility model relates to Intelligent campus technical field more particularly to a kind of Intelligent campus classroom monitoring management systems.

Background technique

Intelligent campus refers to the campus work of the wisdom based on Internet of Things, studying and living integrated environment, This integrated environment is sufficiently melted teaching, scientific research, management and campus life using various application service systems as carrier It closes.2010, in the planning of information-based " 12th Five-Year Plan ", Zhejiang University proposed one exciting Intelligent campus of construction.This width Blueprint depicts: the online research of ubiquitous e-learning, information hierarchy, transparent efficient school affaris are administered, are abundant more The campus culture of coloured silk facilitates thoughtful campus life.

Through retrieving, the patent document of Publication No. CN206115202U discloses a kind of Intelligent campus classroom monitoring management system System carries out whole supervision to the classroom of school, so that academics and students is grasped the use state in every classroom, facilitate classroom point With classroom, it is quickly found out corresponding classroom convenient for student, saves the time.The real-time clock mould of Intelligent campus classroom monitoring management system Block is connected to master controller, and the output end of master controller is connected to the input terminal of display screen, indicator light, control relay circuit, ON/OFF switch, selection key module, acknowledgement key, infrared detection module, fingerprint identification module output end be connected to the input terminal of master controller, main control Device is connected to two dimensional code identification module, and the output end of power supply is connected to the input terminal of power management module, and power management module is used In giving system power supply, wireless communication module is connected to master controller, and management terminal is connected to gateway node, and camera is connected to regard Frequency capture card, video frequency collection card are connected to management terminal, but do not have preferable over-voltage or under-voltage protection electricity in its control module Road, in actual use, when mains ripple, camera will be unable to work normally, or even can damage camera, increase Maintenance cost.

Utility model content

Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of Intelligent campus religion proposed Room monitoring management system.

To achieve the goals above, the utility model adopts the technical scheme that

A kind of Intelligent campus classroom monitoring management system, including control module, control module are connected with power supply module, infrared Detection module, display module and monitoring module, monitoring module include multiple cameras, and control module includes chip IC 1, described The pin 3 of IC1 is connected with one end of resistance R1, one end of resistance R2, one end of resistance R4, the anode of diode D1, resistance R3 One end, one end of capacitor C1, one end of capacitor C2 and slide rheostat RP a fixing end, and be connected with the pin of IC1 2 Connect, the cathode of diode D1 is connected with the anode of diode D2, and the cathode of diode D2 is connected with input terminal U1, and with resistance R1 The other end be connected, the other end of the other end of pin 4 and resistance R2 of IC1, the other end of resistance R4 and capacitor C1 is homogeneous Connect and ground, the pin 8 of IC1 are connected with one end of resistance R5, and the other end of resistance R5 is connected with one end of resistance R6 and defeated Enter and hold U2, and be connected with the other end of resistance R3, the pin 1 of IC1 is connected with the anode of diode D3, and and slide rheostat Another fixing end of RP, the sliding end of sliding end, capacitor C2 the other end be connected with the other end of resistance R6, diode D3 Cathode be connected with output end U0.

Preferably, the input voltage of the model LM393 of the IC1, input terminal U2 are 5V.

Preferably, the resistance value of the resistance R1, resistance R2, resistance R3, resistance R4, resistance R5 and resistance R6 are followed successively by 10K Ω、10KΩ、10KΩ、2.4KΩ、10KΩ、10KΩ。

Preferably, the model 1N4148 of the model 1N4001 of the diode D1 and diode D2, diode D3.

Preferably, the capacitance of the capacitor C1 and capacitor C2 is 100uF and 220uF.

Preferably, the model of the slide rheostat RP is RXG20-300W, slide rheostat RP Standard resistance range be 0 to 100KΩ。

Compared with prior art, the utility model has the beneficial effects that

In the utility model, monitoring module is controlled by control module, and be the on-off of control camera power supply, passed through IC1 realizes protection when and over-voltage under-voltage to camera, and when the voltage of input terminal U1 drops to 10.5V or less, chip IC 1 is exported High level, output end U0 first stop powering for camera, and low pressure is avoided to damage camera, make in the positive feedback of slide rheostat RP Under, make circuit that there is return difference value, at this point, exporting low if chip IC 1 inverts when the input voltage of input terminal U1 goes back up to 12V Level, output end U0 is camera power supply again, when the voltage of input terminal U1 is raised to 14.8V or more, diode D1 and two poles Pipe D2 reverse-conducting, chip IC 1 export high level, and output end U0 stops being that camera is powered, the utility model is designed reasonably, knot Structure is simple, can protect in mains ripple to camera, controls the on-off of camera power supply, greatly reduces Maintenance cost.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of Intelligent campus classroom monitoring management system structural schematic diagram；

Fig. 2 be the utility model proposes a kind of Intelligent campus classroom monitoring management system in control module circuit diagram.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

Referring to Fig.1-2, a kind of Intelligent campus classroom monitoring management system, including control module, control module are connected with confession Electric module, infrared detection module, fingerprint identification module, display module and monitoring module, monitoring module include multiple cameras, and control module includes core The pin 3 of piece IC1, IC1 be connected with one end of resistance R1, one end of resistance R2, one end of resistance R4, diode D1 anode, One fixing end of one end of resistance R3, one end of capacitor C1, one end of capacitor C2 and slide rheostat RP, and draw with IC1 Foot 2 is connected, and the cathode of diode D1 is connected with the anode of diode D2, and the cathode of diode D2 is connected with input terminal U1, and Be connected with the other end of resistance R1, the other end of pin 4 and resistance R2 of IC1, the other end of resistance R4 and capacitor C1 it is another The homogeneous connect and ground in one end, the pin 8 of IC1 are connected with one end of resistance R5, and the other end of resistance R5 is connected with resistance R6's One end and input terminal U2, and be connected with the other end of resistance R3, the pin 1 of IC1 are connected with the anode of diode D3, and with cunning Dynamic another fixing end of rheostat RP, the sliding end of sliding end, capacitor C2 the other end be connected with the other end of resistance R6, The cathode of diode D3 is connected with output end U0, controls monitoring module by control module, and be the logical of control camera power supply It is disconnected, protection when and over-voltage under-voltage to camera, when the voltage of input terminal U1 drops to 10.5V or less, chip are realized by IC1 IC1 exports high level, and output end U0 first stops powering for camera, avoids low pressure from damaging camera, slide rheostat RP's Under positive feedback effect, make circuit that there is return difference value, at this point, if chip IC 1 is anti-when the input voltage of input terminal U1 goes back up to 12V Turning, exports low level, output end U0 is camera power supply again, when the voltage of input terminal U1 is raised to 14.8V or more, diode D1 and diode D2 reverse-conducting, chip IC 1 export high level, and output end U0 stops being that camera is powered, and the utility model is set Rationally, structure is simple for meter, can protect in mains ripple to camera, controls the on-off of camera power supply, greatly Maintenance cost is reduced greatly.

In the utility model, the input voltage of the model LM393 of IC1, input terminal U2 is 5V, resistance R1, resistance R2, Resistance R3, resistance R4, resistance R5 and resistance R6 resistance value be followed successively by 10K Ω, 10K Ω, 10K Ω, 2.4K Ω, 10K Ω, 10K Ω, The model 1N4148 of the model 1N4001 of diode D1 and diode D2, diode D3, the capacitance of capacitor C1 and capacitor C2 For 100uF and 220uF, the model of slide rheostat RP is RXG20-300W, and slide rheostat RP Standard resistance range is 0 to 100K Ω controls monitoring module by control module, and is the on-off of control camera power supply, is realized by IC1 under-voltage to camera With protection when over-voltage, when the voltage of input terminal U1 drops to 10.5V or less, chip IC 1 exports high level, and output end U0 first stops It only powers for camera, low pressure is avoided to damage camera, under the positive feedback effect of slide rheostat RP, make circuit that there is return difference Value, at this point, exporting low level if chip IC 1 inverts when the input voltage of input terminal U1 goes back up to 12V, output end U0 is again Camera power supply, when the voltage of input terminal U1 is raised to 14.8V or more, diode D1 and diode D2 reverse-conducting, chip IC 1 High level is exported, output end U0 stops being that camera is powered, and the utility model is designed reasonably, structure is simple, can be in power supply electricity When pressure fluctuation, camera is protected, the on-off of camera power supply is controlled, greatly reduces maintenance cost.

Working principle: under-voltage and over-voltage guarantor can be realized by the comparator of a model LM393 in the utility model Protective function, for the common circuit with two comparators, structure is more succinct, in actual use, in input terminal U2 accesses 5V direct current, powers for chip IC 1, and input terminal U1 normal input voltage is 12V, when the voltage of input terminal U1 drops to When 10.5V or less, chip IC 1 exports high level, and output end U0 first stops powering for camera, and low pressure is avoided to damage camera, Under the positive feedback effect of slide rheostat RP, make circuit that there is return difference value, at this point, if the input voltage of input terminal U1 is gone back up to When 12V, chip IC 1 is inverted, and exports low level, output end U0 is camera power supply again, when the voltage of input terminal U1 is raised to When 14.8V or more, diode D1 and diode D2 reverse-conducting, chip IC 1 export high level, and output end U0 stops being camera Power supply.

More than, the only preferable specific embodiment of the utility model, but the protection scope of the utility model is not limited to In this, anyone skilled in the art within the technical scope disclosed by the utility model, according to the utility model Technical solution and its utility model design be subject to equivalent substitution or change, should all cover the protection scope of the utility model it It is interior.

Claims (6)

1. a kind of Intelligent campus classroom monitoring management system, including control module, control module is connected with power supply module, infrared inspection Surveying module, display module and monitoring module, monitoring module includes multiple cameras, and control module includes chip IC 1, and feature exists In, the pin 3 of the IC1 be connected with one end of resistance R1, one end of resistance R2, one end of resistance R4, diode D1 anode, One fixing end of one end of resistance R3, one end of capacitor C1, one end of capacitor C2 and slide rheostat RP, and draw with IC1 Foot 2 is connected, and the cathode of diode D1 is connected with the anode of diode D2, and the cathode of diode D2 is connected with input terminal U1, and Be connected with the other end of resistance R1, the other end of pin 4 and resistance R2 of IC1, the other end of resistance R4 and capacitor C1 it is another The homogeneous connect and ground in one end, the pin 8 of IC1 are connected with one end of resistance R5, and the other end of resistance R5 is connected with resistance R6's One end and input terminal U2, and be connected with the other end of resistance R3, the pin 1 of IC1 are connected with the anode of diode D3, and with cunning Dynamic another fixing end of rheostat RP, the sliding end of sliding end, capacitor C2 the other end be connected with the other end of resistance R6, The cathode of diode D3 is connected with output end U0.

2. a kind of Intelligent campus classroom monitoring management system according to claim 1, which is characterized in that the type of the IC1 It number is LM393, the input voltage of input terminal U2 is 5V.

3. a kind of Intelligent campus classroom monitoring management system according to claim 1, which is characterized in that the resistance R1, Resistance R2, resistance R3, resistance R4, resistance R5 and resistance R6 resistance value be followed successively by 10K Ω, 10K Ω, 10K Ω, 2.4K Ω, 10K Ω、10KΩ。

4. a kind of Intelligent campus classroom monitoring management system according to claim 1, which is characterized in that the diode D1 With the model 1N4001 of diode D2, the model 1N4148 of diode D3.

5. a kind of Intelligent campus classroom monitoring management system according to claim 1, which is characterized in that the capacitor C1 and The capacitance of capacitor C2 is 100uF and 220uF.

6. a kind of Intelligent campus classroom monitoring management system according to claim 1, which is characterized in that the sliding variable resistance The model of device RP is RXG20-300W, and slide rheostat RP Standard resistance range is 0 to 100K Ω.