CN205091913U8 - A kind of passenger carriage overloading safety monitoring system based on GSM network - Google Patents

Abstract

This utility model relates to traffic safety technology field, a kind of passenger carriage overloading safety monitoring system based on GSM network.It includes electric switch and terminal module in signal conditioning circuit, single-chip microcomputer, car；Signal conditioning circuit connects to be had gravity detection module, camera module and infrared detection module and is connected with single-chip microcomputer by A/D change-over circuit, and single-chip microcomputer is sent the signal to terminal module by gsm module and is connected with electric switch in car by electromagnetic relay.This utility model realizes the detection of passenger vehicle running parameter by gravity detection module, camera module and infrared detection module；Meanwhile, electromagnetic relay and Che Nei electric switch is utilized to realize bus safety control；Further, gsm module is utilized to realize signal mobile communication, its simple in construction, easy to operate, there is the strongest practicality.

Description

A safety monitoring system for passenger car overload based on GSM network

technical field

The utility model relates to the technical field of traffic safety, especially a kind of passenger car overload safety monitoring system based on GSM network.

Background technique

As is known to all, in the near future, accidents caused by overloading of passenger cars occur frequently, and once an accident occurs in passenger cars, it is very easy to induce mass fatalities and mass injuries extraordinarily vicious accidents, which have brought significant losses and injuries to the country and the masses. At present, the overloading of passenger cars has become a social problem that seriously affects the transportation environment and the sustainable development of social and economic sectors. To this end, the state has issued a series of policies and regulations to prevent the overloading of passenger cars. Although this has reduced the overloading of passenger cars to a certain extent, the overloading phenomenon is still repeatedly prohibited during peak passenger flow periods such as holidays and busy farming.

Utility model content

Summary of the invention For the deficiencies existing in the above-mentioned prior art, the purpose of this utility model is to provide a kind of passenger car overload safety monitoring system based on GSM network.

In order to achieve the above object, the utility model adopts following technical scheme:

A kind of passenger car overload safety monitoring system based on GSM network, it comprises gravity detection module, camera module, infrared detection module, signal conditioning circuit, A/D conversion circuit, single-chip computer, electromagnetic relay, in-vehicle electrical switch, GSM module and terminal twu block;

Described gravity detection module, camera module and infrared detection module detect passenger car gravity signal, video signal and passenger quantity signal and signal is input to signal conditioning circuit, and described signal conditioning circuit carries out signal conditioning and signal is input to signal conditioning circuit. A/D conversion circuit, the A/D conversion circuit performs A/D conversion on the signal and inputs the converted signal to the single-chip microcomputer, and the single-chip microcomputer organizes the signal and feeds back the signal to the electromagnetic relay and the GSM module. The electromagnetic relay generates a control signal and inputs the signal to the electrical switch in the vehicle, the GSM module sends the signal through the GSM network, and the terminal module receives the signal sent by the GSM module.

[0007] Preferably, the single-chip microcomputer is also electrically connected with a display screen and an alarm module.

Preferably, described signal conditioning circuit comprises adjustable resistance, first operational amplifier and second operational amplifier, and the non-inverting end of described first operational amplifier is grounded by the third resistance and through the connection between the fourth resistance and the adjustable resistance The adjustable end is connected, the fixed end of the adjustable resistor is connected to the power supply through the first resistor, the inverting end of the first operational amplifier is connected to the gravity detection module, the camera module and the infrared detection module through the fifth resistor, the said The inverting terminal of the first operational amplifier is connected to its own output terminal through the sixth resistor, the output terminal of the first operational amplifier is connected to the non-inverting terminal of the second operational amplifier through the seventh resistor, and the inverting terminal of the second operational amplifier is connected. The phase terminal is grounded through the eighth resistor and connected to its own output terminal through the ninth resistor and thermistor connected in series in sequence, and the output terminal of the second operational amplifier is connected to the A/D conversion circuit through the tenth resistor.

Owing to having adopted such scheme, the utility model realizes the detection of passenger car operating parameters by gravity detection module, camera module and infrared detection module; Simultaneously, utilizes electromagnetic relay and in-vehicle electrical switch to realize passenger car safety control; And, utilizes GSM module The realization of signal mobile communication has the advantages of simple structure, convenient operation and strong practicability.

Description of drawings

Fig. 1 is the structural principle schematic diagram of the utility model embodiment;

Fig. 2 is the circuit structure diagram of the signal conditioning circuit of the utility model embodiment.

detailed description

Embodiment Below in conjunction with accompanying drawing, the embodiments of the present utility model are described in detail, but the present utility model can be implemented by a variety of different modes that are limited and covered by the claims.

As shown in Figure 1, the present embodiment provides a kind of passenger car overload safety monitoring system based on GSM network, it comprises gravity detection module 1, camera module 2, infrared detection module 3, signal conditioning circuit 4, A/D conversion circuit 5, single chip microcomputer 8, electromagnetic relay 11, in-vehicle electrical switch 12, GSM module 9 and terminal module 10;

Gravity detection module 1, camera module 2 and infrared detection module 3 detect passenger car gravity signal, video signal and passenger quantity signal and input signal to signal conditioning circuit 4, signal conditioning circuit 4 carries out signal conditioning and signal input To the A/D conversion circuit 5, the A/D conversion circuit 5 performs A/D conversion on the signal and inputs the converted signal to the single-chip microcomputer 8, and the single-chip microcomputer 8 organizes the signal and feeds the signal back to the electromagnetic relay 11 and the GSM module 9. , the electromagnetic relay 11 generates a control signal and inputs the signal to the in-vehicle electrical switch 12 , the GSM module 9 sends the signal through the GSM network, and the terminal module 10 receives the signal sent by the GSM module 9 .

Further, single chip 8 is also electrically connected with display screen 6 and alarm module 7.

The present embodiment realizes the detection of passenger car operating parameters by gravity detection module 1, camera module 2 and infrared detection module 3; Meanwhile, utilize electromagnetic relay 11 and in-vehicle electrical switch 12 to realize passenger car safety control; And, utilize GSM module 9 Realize signal mobile communication.

During the work of the present embodiment, whether overweight, camera module 2 are detected by gravity detection module 1 and check passenger car interior picture signal and infrared detection module 3 detect the number of passengers on board, when overloading, overweight are found to occur, alarm module 7 is utilized to send out Danger warning and control of the electric switch 12 in the vehicle through the electromagnetic relay 11 to close the power system of the bus. At the same time, some law enforcement departments such as the traffic police use the terminal module 10 or a personal mobile phone to read the GSM network information.

The signal conditioning circuit 4 of this embodiment can adopt the circuit structure as shown in Figure 2, namely comprises adjustable resistance RX, the first operational amplifier A1 and the second operational amplifier A2, and the non-inverting end of the first operational amplifier A1 passes through The third resistor R3 is grounded and connected to the adjustable end of the adjustable resistor RX through the fourth resistor R4, the fixed end of the adjustable resistor RX is connected to the power supply through the first resistor R1, and the inverting end of the first operational amplifier A1 passes through the fifth The resistor R5 is connected to the gravity detection module 1, the camera module 2 and the infrared detection module 3, the inverting terminal of the first operational amplifier A1 is connected to its own output terminal through the sixth resistor R6, and the output terminal of the first operational amplifier A1 is connected to the output terminal of the first operational amplifier A1 through the seventh The resistor R7 is connected to the non-inverting terminal of the second operational amplifier A2, and the inverting terminal of the second operational amplifier A2 is grounded through the eighth resistor R8 and connected to its own output terminal through the ninth resistor R9 and the thermistor RT in series. The output end of the second operational amplifier A2 is connected to the A/D conversion circuit 5 through the tenth resistor R1.

The above is only the preferred embodiment of the present utility model, and is not intended to limit the scope of the present utility model's patent; Indirect applications in other related technical fields are similarly included in the scope of patent protection of the present invention.

Claims (3)

1. a passenger car overload safety monitoring system based on GSM network, is characterized in that: it comprises gravity detection module, camera module, infrared detection module, signal conditioning circuit, A/D conversion circuit, single chip microcomputer, electromagnetic relay, in-vehicle electrical switch , GSM module and terminal module; The gravity detection module, camera module and infrared detection module detect the gravity signal, video signal and passenger number signal of the passenger car and input the signals to the signal conditioning circuit, and the signal conditioning circuit performs signal conditioning and Input the signal to the A/D conversion circuit, the A/D conversion circuit performs A/D conversion on the signal and inputs the converted signal to the single-chip microcomputer, which organizes the signal and feeds back the signal to the electromagnetic relay and GSM The electromagnetic relay generates a control signal and inputs the signal to the electrical switch in the vehicle, the GSM module sends the signal through the GSM network, and the terminal module receives the signal sent by the GSM module. 2. a kind of bus overload safety monitoring system based on GSM network as claimed in claim 1, is characterized in that: described single chip computer is also electrically connected with display screen and alarm module. 3. a kind of passenger car overload safety monitoring system based on GSM network as claimed in claim 2, is characterized in that: described signal conditioning circuit comprises adjustable resistance, first operational amplifier and second operational amplifier, described first operational amplifier The non-inverting end of the amplifier is grounded through the third resistor and connected to the adjustable end of the adjustable resistor through the fourth resistor, the fixed end of the adjustable resistor is connected to the power supply through the first resistor, and the inverting end of the first operational amplifier The fifth resistor is connected to the gravity detection module, the camera module and the infrared detection module, the inverting terminal of the first operational amplifier is connected to its own output terminal through the sixth resistor, and the output terminal of the first operational amplifier is connected to the The resistor is connected to the non-inverting terminal of the second operational amplifier, the inverting terminal of the second operational amplifier is grounded through the eighth resistor, and is connected to its own output terminal through the ninth resistor and thermistor connected in series in sequence. The output end of the amplifier is connected with the A/D conversion circuit through the tenth resistor.