CN201638273U

CN201638273U - Electronic toll collection handholding device

Info

Publication number: CN201638273U
Application number: CN2009202867792U
Authority: CN
Inventors: 曹颖晶; 陈金雅; 王建华; 沈思宇; 裴同璧
Original assignee: SHANGHAI SUPER DRAGON APPLIED SOFTWARE DEVELOPMENT Co Ltd
Current assignee: SHANGHAI SUPER DRAGON APPLIED SOFTWARE DEVELOPMENT Co Ltd
Priority date: 2009-12-30
Filing date: 2009-12-30
Publication date: 2010-11-17
Anticipated expiration: 2019-12-30

Abstract

The utility model provides an electronic toll collection handholding device which comprises a handholding terminal. The electronic toll collection handholding device is characterized in that the handholding terminal is connected with a data processing unit and a power supply management unit, and the data processing unit is respectively connected with a data transmitting unit, an RF (Radio Frequency) receiving and transmitting unit, a microstrip antenna unit, a safe key unit and the power supply management unit. The utility model has the advantages of release and toll collection function, realization of automatic toll collection, accurate toll collecting information, toll collecting completion in short time, complete embodiment of electronized toll collection, support of rapid networking toll collection of a freeway, convenience, high speed and application to operation in an emergency situation.

Description

A kind of electric non-stop toll hand-held device

Technical field

The utility model relates to a kind of electric non-stop toll hand-held device, is used for the vehicle electronics label is issued, installs, tested and concludes the business, and belongs to highway toll device technique field.

Background technology

The employed equipment of various highroad toll collection systems of prior art all adopts manually-operated mode.In the porch of various highways, issue magnetic card of driver, in the exit, the driver gives the operator with magnetic card, reads the card internal information by equipment, is collected the charges to the driver by the fee-collector again.The shortcoming of equipment is like this, and no matter in the porch or the exit, the driver needs vehicle is stopped, and hands over corresponding expense again.When the vehicle by this crossing more for a long time, tend to cause vehicle to block up at charging aperture.

Summary of the invention

The purpose of this utility model provides a kind of device of charge automatically of can realizing not stopping.

In order to achieve the above object, the technical solution of the utility model has provided a kind of electric non-stop toll hand-held device, comprise handheld terminal, it is characterized in that, handheld terminal links to each other with data processing unit and Power Management Unit, and data processing unit connects data transmission unit, RF Transmit-Receive Unit, microband antenna unit, safe key unit and Power Management Unit respectively.

Further, described RF Transmit-Receive Unit comprises the amplitude shift keying rf chip, the amplitude shift keying rf chip connects data buffer, MCU interface, oscillator, power amplification circuit and low noise amplifier respectively, the MCU interface connects data buffer and power amplification circuit, power amplification circuit and low noise amplifier link to each other with duplexer by bandwidth-limited circuit respectively, low noise amplifier links to each other with biasing circuit, and duplexer connects antenna.

The utility model has the advantages that and possess distribution and charge function, feasible parking automatic charge becomes possibility, pay imformation is accurate, finish charge in the short time, the electronization charge is embodied completely, support the quick networked fee collection of highway, simultaneously convenient and swift, can be used for the operation under the case of emergency.

Description of drawings

Fig. 1 is a kind of circuit block diagram of electric non-stop toll hand-held device;

Fig. 2 is the circuit block diagram of RF Transmit-Receive Unit;

Fig. 3 is the circuit block diagram of handheld terminal.

Embodiment

Specify the utility model below in conjunction with embodiment.

Embodiment

As shown in Figure 1, circuit block diagram for a kind of electric non-stop toll hand-held device, comprise handheld terminal, it is characterized in that, handheld terminal links to each other with data processing unit and Power Management Unit, and data processing unit connects data transmission unit, RF Transmit-Receive Unit, microband antenna unit, safe key unit and Power Management Unit respectively.

Data processing unit is realized the short distance communications protocol by the mode of software.Data processing unit uses the STR715 microprocessor of ST Microelectronics, this microprocessor is a kernel with the ARM7TDMI of industrial standard, need to be specially adapted to compact dimensions, powerful embedded system and upgradeable solution such as user interface, factory automation system and point of sale (POS) application etc. of cpu function.This Series of MCU directly from the speed of flash memory up to 33MHz; Since adopt the burst speed technology, the sequence code zero wait state, maximum access rate 50MHz, so these series of products are fit to use in real time very much.This microprocessor is equipped with multiple communication interface, comprises UART, BSPI, I2C, HDLC (High-Level Data Link Control) and intelligent card interface.This built-in chip type 64K syllabified code flash memory, 16 byte data flash memories and 16 byte RAM do not have USB and CAN module.

The major technique characteristics are as follows:

1, the FLASH programming space (256+16K) of storage space: 272K, the multiple start-up mode function of the ram space of 64K.

2, clock resets and power management: 3.3V supply voltage and I/O mouth voltage; Integrated kernel 1.8VLDO; The outside king oscillator of 0 to 16MHz; The outside standby oscillator of 32kHz; Inner phaselocked loop is for cpu clock; Up to 50MHz CPU operating frequency; The real-time clock function; Four kinds of power-saving working mode: SLOW, WAIT, STOP, STANDBY.

3, interrupt management: quick Interrupt Process; 16 interrupt priority levels; 2 maskable FIQ interrupt sources.

4, I/O mouth configuration: 48 multi-function double-way I/O mouths; 14 mouth band interrupt functions.

5, timer: 16 WatchDog Timers; Four 16 bit timing devices, 2 input captures of each timer band, 2 outputs are compared, and PWM supports the impulse meter pattern.

6, communication interface: 2 road I2C interfaces; 4 road UART asynchronous serial communication interfaces; Intelligent card interface; 2 road SPI synchronous serial interfaces; CAN interface (2.0B Active); The HDLC synchronous serial interface.

7, A/D converter: 4 tunnel 12 A/D conversions.

Microstrip antenna belongs to little band rectangular patch antenna, and this antenna has low section, be easy to characteristics such as circuit is integrated.The major technique characteristics are as follows:

1, frequency of operation is 5.8GHz, bandwidth 50MHz, and the whole size of antenna is 30*20*1.5mm.

What 2, pcb board adopted is teflon high frequency plate, and this pcb board has characteristics such as low-k, high Q value.

3, the antenna gain of final design can reach 5dBi, and polarization is a vertical polarization, and surface level, vertical plane 3dB lobe width are between 65 degree-70 degree, and the front and back ratio can be greater than 16dB.

As shown in Figure 2, described RF Transmit-Receive Unit comprises the amplitude shift keying rf chip, the amplitude shift keying rf chip connects data buffer, MCU interface, oscillator, power amplification circuit and low noise amplifier respectively, the MCU interface connects data buffer and power amplification circuit, power amplification circuit and low noise amplifier link to each other with duplexer by bandwidth-limited circuit respectively, low noise amplifier links to each other with biasing circuit, and duplexer connects antenna.

It is the 5.8GHz chip of ASK that chip has adopted modulation system, and the major technique characteristics are: ASK modulating/demodulating mode; Message transmission rate can be set to 1Mbps; Sensitivity is-84dBm; Adjustable voltage is 2.7-3.3V in the chip.

This chip is communicated by letter in the 5.8GHz ISM band, even also can provide clear, reliable communication very close to wireless lan (wlan), bluetooth and micro-wave oven, but the 1Mbps data rate shortens and Direct swquence spread spectrum its data transmission period, stand-by period, reduced interference, increased battery life, this chip provides complete 5.8GHz radio to solve scheme.

The safe key unit: use the PSAM module and carry out data safe processing, this PSAM module is outsourcing, and key is the distribution control of highway operator.

Power Management Unit: utilize the hand-held set internal electric source, through power source conversion, to the MCU power supply, cooperate hand-held set terminal Power Management Unit after the Filtering Processing, changing device free after a period of time, product can enter dormant state, saves battery and uses duration.When battery electric quantity is lower than the equipment work electric weight, need in time to charge to hand-held set, keep the equipment operate as normal, cell of mobile telephone set can repeatedly charge.

Handheld terminal is the outsourcing module, and manufacturer is a Da Wen company, and the circuit block diagram of this module comprises core processor as shown in Figure 3, and core processor connects man-machine interface, power module, storage unit, wireless transport module and expansion I/O mouth respectively.

The utility model is issued traction equipment as electric non-stop toll, having adopted working method is that ASK modulation 5.8GHz wireless radio frequency modules and the vehicle electronics label with 5.8GHz wireless radio frequency modules carry out reading and writing data and data processing ground communication mode, is applied in distribution unit, expressway entrance and exit place.The distribution unit leaves distribution of information in the software database in, by the utility model hand-held device information of vehicles is logged in the storage unit of vehicle electronics tag data process unit, information of vehicles comprises every vehicle parameters such as license plate number, vehicle, Motor Number.The distribution use utilizes vehicle electronics label hand-held device to determine desired positions for the vehicle electronics label being installed in the position of the front windshield rearview mirror correspondence of car, test wireless telecommunications radio frequency effect.

In the expressway access, if roadside device breaks down, when the vehicle that car-mounted device is installed enters the highway station entrance, can pull out the two interface C PU cards that are inserted in the vehicle electronics label, use hand-held device that inbound communication is write in two interface C PU cards, let pass, and in data management system, be correspondingly processed.At expressway exit, if roadside device breaks down, when the vehicle that car-mounted device is installed enters the highway exit, can pull out the two interface C PU cards that are inserted in the vehicle electronics label, the application hand-held device sticks into row communication by the mode and the CPU of less radio-frequency, read information of vehicles and two interface C PU card information, comprise the information of missing the stop etc., after the highway data acquisition processing system accesses from database and let pass to handle and access the coupling vehicle data behind the coupling vehicle data from database, enter the outlet transaction flow by the radio frequency communication mode, payment settlement, withhold, write down outbound information, and be uploaded to the control data corporation of road data collection disposal system.

Claims

1. electric non-stop toll hand-held device, comprise handheld terminal, it is characterized in that, handheld terminal links to each other with data processing unit and Power Management Unit, and data processing unit connects data transmission unit, RF Transmit-Receive Unit, microband antenna unit, safe key unit and Power Management Unit respectively.

2. a kind of electric non-stop toll hand-held device according to claim 1, it is characterized in that, described RF Transmit-Receive Unit comprises the amplitude shift keying chip, the amplitude shift keying chip connects data buffer, MCU interface, oscillator, power amplification circuit and low noise amplifier respectively, the MCU interface connects data buffer and power amplification circuit, power amplification circuit and low noise amplifier link to each other with duplexer by bandwidth-limited circuit respectively, low noise amplifier links to each other with biasing circuit, and duplexer connects antenna.