CN203318277U

CN203318277U - Coach overload detection device

Info

Publication number: CN203318277U
Application number: CN2013203872065U
Authority: CN
Inventors: 李雨林
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-22
Filing date: 2013-06-22
Publication date: 2013-12-04
Anticipated expiration: 2023-06-22

Abstract

The utility model provides a coach overload detection device, comprising a microprocessor, laser transceiver units, a manual outage detection circuit, a manual outage alarm circuit, a power module, a liquid crystal screen, a buzzer and a GSM (global system for mobile communications) module, wherein the liquid crystal screen is arranged outside a coach body; the laser transceiver units are divided into two groups which are respectively arranged on an entrance door and an exit door of the coach; the two groups of laser transceiver units are communicated with the input end of the microprocessor through judgment circuits; the input end of the microprocessor is connected with the manual outage detection circuit and the power module; the output end of the microprocessor is connected with the liquid crystal screen through an SPI (service provider interface) bus, is connected with the GSM module through a serial port, and is also connected with the manual outage alarm circuit; and the manual outage alarm circuit controls the buzzer. The coach overload detection device has the advantages of automatically alarming, automatically displaying the number of passengers, and the like.

Description

A kind of passenger carriage overloading detecting device

Technical field

The utility model relates to a kind of checking system, especially a kind of detection alarm device of passenger traffic overload situation being monitored for checking patronage.

Background technology

Network of highways is constantly expanded in recent years, and the contact of intercity is day by day frequent, and highway passenger transportation becomes the most general passenger traffic mode at present.Driven by interests, the overcrowding problem of passenger vehicle is very serious.After passenger carriage overloading, must there is the part passenger to stand or to squeeze in compartment, in the vehicle traveling process, as sharply turning, brake, be easy to cause that the passenger collides with in compartment etc. unexpected.Vehicle is under overload condition, and load carrying ability increases, and vehicle inertia strengthens, and stopping distance lengthens, and danger is corresponding increase also.If the severe overcrowding, very easily because loading of tire is overweight, it is excessive to be out of shape, cause blow out, partially sail suddenly, brake failure etc., cause the generation of traffic accident.Passenger vehicle is overcrowding brings hidden trouble to safe driving, particularly during the unforeseen circumstances such as accident, vehicle spontaneous combustion, to passenger's escape, rescue the wounded and bring very big difficulty, the accident of the group of colony wound may will occur.The passenger vehicle overload has caused massive losses to the people's life and property, has also had a strong impact on the upgrading of market transport power structure and the sound development in market simultaneously.Therefore, strengthen the management of passenger vehicle and the construction of passenger vehicle intelligent detection device is had and important meaning.

At present, put into effect a series of policies and regulations for passenger vehicle overload problems country and prevented passenger carriage overloading, various places government has also formulated relevant system passenger carriage overloading has been managed.Although this has reduced the overloading of passenger vehicle to a certain extent, in phases commuter rush hour such as Holiday and busy farming seasons, overloading still remains incessant after repeated prohibition.At present, the passenger carriage overloading detection means is still set up the orthodox method of patrolling on check post and road mostly, and these method accuracy of detection are low, and the labor intensive material resources.Therefore, when taking the administrative supervision management, design intelligent passenger carriage overloading detecting device, prevent that passenger carriage overloading from being necessary.

Summary of the invention

But the utility model purpose is to provide a kind of remote alarms, can shows the passenger carriage overloading detecting device that calculates patronage, autoalarm.

For achieving the above object, the utility model has adopted following technical scheme: described detecting device is comprised of microprocessor, laser transceiver element, artificial power failure detection circuit, artificial cut-offing alarming circuit, power module, liquid crystal display, buzzer phone and gsm module; Described liquid crystal display is arranged on the passenger car body outside; Described laser transceiver element is divided into two groups, is arranged on respectively entrance door and the exit door of passenger vehicle; Two groups of laser transceiver element are connected through the input end of decision circuitry and microprocessor; The input end of microprocessor separately is connected with power module with artificial power failure detection circuit; The mouth of described microprocessor is connected with liquid crystal display through spi bus, and mouth separately is connected with gsm module through serial ports, and mouth also is connected with artificial cut-offing alarming circuit, and artificial cut-offing alarming circuit is controlled buzzer phone.

During use, whole system is worked under microprocessor control.Its working process is: after device powers on, at first carry out the initialization of liquid crystal display, gsm module, buzzer phone and laser transceiver element; After initialization, liquid crystal display shows current passenger vehicle carrying information and current time; When passenger carriage overloading, microcontroller sends to the radio communication gsm module by alarm message, and the radio communication gsm module sends to monitoring and control centre by Passenger Vehicle information and overload warning information automatically; During practical application, liquid crystal display is arranged on car outward for law enfrocement official inspection, when liquid crystal display fault or cable, is artificially removed, and device can send artificial power alarm by buzzer phone, has limited to a certain extent driver and conductor's artificial interference.

As shown from the above technical solution, the utility model has the advantages that:

1,, during passenger carriage overloading, can automatically carry out remote alarms by gsm module;

2, when liquid crystal display fault or cable, artificially removed, device can send artificial power alarm by buzzer phone, reduces driver and conductor's the premeditated illegal probability of subjectivity;

3, can automatically detect the patronage of getting on or off the bus;

4, the plug-in installation of liquid crystal display, be convenient to the traffic monitoring personnel and observe;

The accompanying drawing explanation

Fig. 1 is structured flowchart of the present utility model.

Fig. 2 is the utility model main program inquiry service diagram of circuit.

The break in service diagram of circuit that Fig. 3 is the utility model passenger getting on/off.

The diagram of circuit that Fig. 4 is the break in service of the utility model timer.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described further:

In structured flowchart of the present utility model as shown in Figure 1, detecting device described in the utility model is comprised of microprocessor, laser transceiver element, artificial power failure detection circuit, artificial cut-offing alarming circuit, power module, liquid crystal display, buzzer phone and gsm module; Described liquid crystal display is arranged on the passenger car body outside; Described laser transceiver element is divided into two groups, is arranged on respectively entrance door and the exit door of passenger vehicle; Two groups of laser transceiver element are connected through the input end of decision circuitry and microprocessor; The input end of microprocessor separately is connected with power module with artificial power failure detection circuit; The mouth of described microprocessor is connected with liquid crystal display through spi bus, and mouth separately is connected with gsm module through serial ports, and mouth also is connected with artificial cut-offing alarming circuit, and artificial cut-offing alarming circuit is controlled buzzer phone.

The hardware design of described detecting device is as follows:

1, microprocessor: adopt ARM7 microcontroller LPC2138 central processing unit, because LPC2138 is 32 64 pin ARM7TDMI-S microcontrollers, adopt the 3.3V power voltage supply, there is the 64K ram in slice, Flash in the 512K sheet, abundant GPIO pin, 8 road ADC, 6 road PWM, 2 UART interfaces, 2 spi bus interfaces, 4 tunnel external interrupt and real-time clock RTC, therefore be specially adapted to Industry Control, medical system field etc.Circuit comprises LPC2138 minimum system circuit, reset circuit, power supply stabilization circuit, crystal oscillating circuit and JTAG debugging junction circuit.LPC2138 chip power supply voltage is 3.3V, by the LM1117 chip, system VCC power supply is converted to 3.3V.

2, laser transceiver element: need altogether 4 road laser modules in device, each laser module comprises one group of laser transmitting-receiving circuit, and the laser transmitting-receiving circuit is comprised of three parts, is respectively Laser Modulation, Laser emission and laser pick-off.2 pin of Laser Modulation pipe connect the 5V power supply, and the Sasser of 1 pin output 180KHz～220KHz frequency, can the regulation output frequency values by regulating resistance R1.The mode of operation of aerotron is controlled in the output pulse, and then controls the transmitter telescope transmitting frequency.The laser of transmitter telescope emission wavelength 680nm, laser tube power supply voltage 3V, power 5mW, turning circuit is less than 40mA.Receiving unit, by the adoptor receiving light power of the 180KHz～220KHz that is complementary, connects capacitor filtering between 1 pin of adoptor and 3 pin.2 pin are signal pins, connect the interrupt pin of microcontroller, detect the height of return voltage.Because laser sensor has used modulation treatment, adoptor can only receive the laser of same frequency, thereby can actv. prevents the interference of visible ray.In this device, select normal low adoptor, when without Ear Mucosa Treated by He Ne Laser Irradiation, the adoptor output low level, when particular frequency range Ear Mucosa Treated by He Ne Laser Irradiation adoptor, adoptor is exported high level.

3, gsm module: select the TC35 module, the TC35 module is the new generation of wireless communication gsm module that Siemems company releases.Carry the RS232 communication interface, can connect the machine communication with PC, micro controller system easily.Can realize fast, safely, reliably data, voice transfer, Short Message Service (Short Message Service) and the fax in system schema.The operating voltage of TC35 module is 3.3-5.5V, can be operated in two frequency ranges of 900MHz and 1800MHz, and place frequency range power consumption is respectively 2w (900M) and 1w (1800M).Module has the AT Command Set interface, supports the short message of text and PDU pattern, two class fax and the 2.4k of the 3rd group, 4.8k, the non-transparent mode of 6k.In addition, this module also has phonebook function, MPTY, the roaming measuring ability, and mode of operation commonly used has battery saving mode, IDLE, TALK isotype.The ZIF adaptor union of 40 pins by uniqueness, realize power supply connection, instruction, data, voice signal, and the bidirectional transmission of control signal.By ZIF adaptor union and 50 Ω antenna connectors, can connect respectively SIM support and antenna.The TC35 module mainly is comprised of GSM baseband processor, GSM radio-frequency module, supply module (ASIC), flash memory, ZIF adaptor union, antennal interface six parts.As the core of TC35, baseband processor is mainly processed voice, the data-signal in the GSM terminal, and has contained all analog-and digital-functions in cellular radio equipment.Under the prerequisite that does not need the additional hardware circuit, can support FR, HR and EFR voice channel coding.

4, liquid crystal display: select the Nokia5110 liquid crystal display, Nokia5110 is a classical liquid crystal display, and this product, except being applied to vehicular telephone, also can be widely used in the display system of all kinds of portable sets.Use the Nokia5110 liquid crystal to there is following characteristics:

1) the dot matrix LCD of 84x48, can show 4 row Chinese characters,

2) adopt serial interface and primary processor to communicate, interface signal line quantity significantly reduces, and comprises that the signal wire (SW) of VDD-to-VSS only has 9.Support multiple serial communication protocol (as serial ports pattern 0 of SPI, the MCS51 of AVR micro controller system etc.), transfer rate, up to 4Mbps, can write the demonstration data at full speed, without wait time.

3) speed is fast, is 20 times of LCD12864, is 40 times of LCD1602.

4) Nokia5110 operating voltage 3.3V, below working current 200uA, have power-down mode while normally showing, is applicable to battery powered portable mobile apparatus.

5, power module: system is by the 7.2V lithium battery power supply, and radio communication gsm module, laser transceiver element power supply voltage are 5V.For guaranteeing that power supply voltage is 5V and continual and steady work, thus voltage stabilizing chip 7805 adopted, and filter capacitor construction system mu balanced circuit.LPC2138 microcontroller power supply voltage is 3.3V, carries the reduction voltage circuit that LM1117 forms on its core board, system 5V voltage can be reduced to 3.3V, is the LPC2138 chip power supply.

In electronic product, common circuit of three-terminal voltage-stabilizing integrated have the LM78 of positive voltage output * * LM79 that series and negative voltage are exported * * series.Form the required peripheral cell of constant voltage power suspply with 78/79 serial three-terminal voltage-stabilizing IC few, inside circuit also has overcurrent, overheated and adjust the protective circuit of pipe, use reliable, convenient, and low price.

The voltage stabilizing process is as follows, and the 7.2V battery obtains 5V voltage after lowering and stabilizing blood pressure, is the power supply of radio communication gsm module, laser transceiver element, LPC2138 microcontroller and other circuit components.

Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.

Claims

1. a passenger carriage overloading detecting device is characterized in that: described detecting device is comprised of microprocessor, laser transceiver element, artificial power failure detection circuit, artificial cut-offing alarming circuit, power module, liquid crystal display, buzzer phone and gsm module; Described liquid crystal display is arranged on the passenger car body outside; Described laser transceiver element is divided into two groups, is arranged on respectively entrance door and the exit door of passenger vehicle; Two groups of laser transceiver element are connected through the input end of decision circuitry and microprocessor; The input end of microprocessor separately is connected with power module with artificial power failure detection circuit; The mouth of described microprocessor is connected with liquid crystal display through spi bus, and mouth separately is connected with gsm module through serial ports, and mouth also is connected with artificial cut-offing alarming circuit, and artificial cut-offing alarming circuit is controlled buzzer phone.