CN203397140U

CN203397140U - Gas station operation recording device

Info

Publication number: CN203397140U
Application number: CN201320343323.1U
Authority: CN
Inventors: 顾政安
Original assignee: Jiangsu Yonggang Group Co Ltd
Current assignee: Jiangsu Yonggang Group Co Ltd
Priority date: 2013-06-14
Filing date: 2013-06-14
Publication date: 2014-01-15
Anticipated expiration: 2023-06-14

Abstract

The utility model relates to a recording device, and particularly relates to a gas station operation recording device comprising a one-chip microcomputer, a keyboard and a liquid crystal displayer which displays input information. The one-chip microcomputer is also connected with a binary system hand-operated device number setting switch and an RS485/232 communication port. A data parallel/series converter is arranged between the binary system hand-operated device number setting switch and the one-chip microcomputer. Three data of an automobile plate number, number of a used oil gun and working number of a corresponding operating staff in each business accepted by a gas station can be operated by the device via the keyboard, and the data can be timely transmitted to an information management system of an enterprise.

Description

Refuelling station's operation recording device of transit

Technical field

The utility model relates to a kind of pen recorder, is a kind of refuelling station operation recording device of transit specifically.

Background technology

Although the universal fuel charger using has possessed stronger intelligent control function at present, greatly alleviated manually-operated labor service intensity, avoided the error of artificial measuring and calculating, but also can not meet the requirement of comprehensive enterprise informationization management system, to related mass data beyond fuel charger, must lean on artificial notes to be supplemented, then by manually putting down data transfer to information management system.

Utility model content

Technical problem to be solved in the utility model is, overcome the shortcoming of prior art, a kind of refuelling station operation recording device of transit is provided, these three data of job number of mark of car when this device can be by the each admission service in refuelling station, the oil gun of use number and respective operations personnel, by keyboard operation, are sent to the information management system of enterprise in time.

In order to solve above technical matters, the utility model provides a kind of refuelling station operation recording device of transit, the liquid crystal display that comprises single-chip microcomputer, keyboard and demonstration input message, is also connected with scale-of-two manual equipment number switch and RS485/232 communication port is set on single-chip microcomputer; Scale-of-two manual equipment number arranges and between switch and single-chip microcomputer, is provided with the parallel/serial converter of data;

Scale-of-two manual equipment number is set, and switch is set is because systems connection when operation, each terminal must have the device number of oneself, otherwise each road terminal of main frame None-identified, the scale-of-two manual equipment number of being furnished with 8 word lengths for this this device arranges switch, make each device to be placed in any one refuelling station by user's wish, as long as the manual station number that this refuelling station is set;

The RS485/232 communication port arranging can select arbitrarily by 485 modes and communicate by letter or 232 modes are communicated by letter, and selectes certain communication mode, just plug corresponding element, and the counter element of another communication mode is let alone vacancy.

The technical scheme that the utility model further limits is:

Further, aforesaid refuelling station operation recording device of transit, also comprise hummer, on hummer, dispose driving circuit, driving circuit is connected to single-chip microcomputer, through the cooperation of software, when any button is effectively pressed, hummer all can send loud " ticking " sound, brings sensorial smooth and easy to operating personnel.

Further, aforesaid refuelling station operation recording device of transit, single-chip microcomputer is that model is AT89S52 single-chip microcomputer.

Further, aforesaid refuelling station operation recording device of transit, liquid crystal display is HD61202 dot matrix lcd.

Further, aforesaid refuelling station operation recording device of transit, because refuelling station's dust is larger, casing must have good sealing, so the outer setting of keyboard has sealing film structure.

Further, aforesaid refuelling station operation recording device of transit, the parallel/serial converter of data is the parallel/serial converter of CD4014, this converter converts 8 parallel bits to 1 bit serial data and sends into single-chip microcomputer.

Further, aforesaid refuelling station operation recording device of transit, keyboard has 48 buttons, for reducing the I/O burden of single-chip microcomputer, keyboard is matrix keyboard, is provided with the 74HC138 code translator that has adopted TTL circuit on keyboard, and single-chip microcomputer is as long as just can realize the output scanning of 8 road x-rays with 3 I/O lines.6 road Y sense wires are born by 6 I/O lines of single-chip microcomputer.

Further, aforesaid refuelling station operation recording device of transit, in liquid crystal display, be provided with display power supply switch, described display power supply switch is connected to single-chip microcomputer, for extending the serviceable life of LCDs, consider, in inactive situation of a few minutes continuously, can automatically close display screen power supply, when next operation starts, display screen power supply is opened immediately automatically.The software of the control of display power supply switch 7 in single-chip microcomputer is realized.

Further, aforesaid refuelling station operation recording device of transit, the left screen control signal CS1 transmission line of liquid crystal display and right screen are controlled model CS2 transmission line and are used same I/O line to be connected to single-chip microcomputer, and wherein right screen is controlled on model CS2 transmission line and is also provided with phase inverter.

The beneficial effects of the utility model are:

1. to carry be the intelligent terminal in master-slave mode data acquisition system (DAS) to the utility model, realized and the linking of the enterprise information management system, and each device mutually replaces, shares and back up by RS485/232 bus interface.

2. device numbering can be arranged arbitrarily by user, and the operation recording device of transit of each refuelling station can be replaced mutually, shares standby.

3. adopt the skills such as parallel/serial mouthful of switch technology, matrix-scanning and decoding scanning technique, the derivative two I/O mouths of single I/O mouth configuration synchronization negative circuit, solve a difficult problem for the limited I/O mouthpiece load of single-chip microcomputer excess I/O mouth.

4. hummer coordinates actuation of keys sounding, increases operating personnel's operating handle.

5. temporary close display screen power supply during long period inoperation, and with special buzzer sound prompting operation person this time display screen extinguish genus and normally stop aobvious but not equipment failure.

Accompanying drawing explanation

Fig. 1 is schematic flow sheet of the present utility model;

Fig. 2 is keyboard circuit schematic diagram;

Fig. 3, inverter circuit schematic diagram;

Fig. 4, display power supply on-off circuit schematic diagram;

The circuit diagram of Fig. 5, hummer and driving circuit.

1, scale-of-two manual equipment number arranges switch, 2, the parallel/serial converter of data, 3, keyboard, 4,74HC138 code translator, 5, HD61202 dot matrix lcd, 6, phase inverter, 7, display power supply switch, 8, AT89S52 single-chip microcomputer, 9, RS485/232 communication port, 10, driving circuit, 11, hummer.

Embodiment

embodiment 1

A kind of refuelling station operation recording device of transit that the present embodiment provides, structure as shown in Figures 1 to 5, the scale-of-two manual equipment number that this device is furnished with 8 word lengths arranges switch 1, make each device to be placed in any one refuelling station by user's wish, as long as the manual station number that this refuelling station is set; For saving the taking of I/O interface of single-chip microcomputer, the design has adopted the parallel/serial converter 2 of CD4014, converts 8 parallel bits to 1 bit serial data and sends into single-chip microcomputer; CLK in the parallel/serial converter 2 of CD4014 is parallel/serial shift clock signal, the parallel/serial operation change-over switch of P/S, and this two signal sends by single-chip microcomputer.DATAOUT is the 1 bit serial signal that is sent to single-chip microcomputer.

HD61202 dot matrix lcd 5 shows for the operation of keyboard, comprises license number, oil gun number, operating personnel's job number, shows the machine device number when start or reset operation; The control signals such as RW, DI, E, CS1, CS2 be respectively writing of sending of single-chip microcomputer, read, enable, left screen, right screen; LCD+ and LCD-are respectively positive incoming end and the negative incoming ends of display screen power supply; Be connected to+5V of LCD+ power end wherein, LCD-is controlled through display power supply switch 7 by the DSPOW line of single-chip microcomputer; In the actual use of this device, left and right screen control signal CS1, CS2 are always in two contrary each other potential states, so as long as an I/O line traffic control, wherein CS1 directly uses I/O line traffic control, CS2 is controlled after phase inverter 6 paraphase by same I/O line; When CS1 is " 0 ", Q2 is because of base stage no current, collector cut-off, and output terminal CS2 is " 1 " (noble potential); When CS1 is " 1 ", the base current of the resistance R of flowing through 6 makes the abundant conducting of collector saturated, and output terminal CS2 is " 0 " (electronegative potential).

This device often has more time inoperation in actual use, be to extend the serviceable life of LCDs, considers, in inactive situation of a few minutes continuously, can automatically close display screen power supply, and when next operation starts, display screen power supply is opened immediately automatically; The software of the control of display power supply switch 7 in single-chip microcomputer is realized.Fig. 4 is exactly the circuit diagram of display power supply switch 7 correspondences in Fig. 1.The on-off circuit that this circuit is comprised of two NPN triodes, wherein Q4 is open-collector OC door, access LCD-.When the control signal from single-chip microcomputer is " 1 " (when just boot program not yet moves and puts in place, all I/O mouths of single-chip microcomputer are and do current potential), the base current of Q3 is enough to make the abundant conducting of collector, Q3 collector potential approaches 0, Q4 makes Q4 collector cut-off because of its base stage no current, LCD-is obstructed over the ground, the positive supply of LCD+ can not form power circuit at display screen, and display screen can not move without electricity.When the control signal from single-chip microcomputer is " 0 ", Q3 is because of base stage no current, collector cut-off, resistance R 9 all imports VCC source current the base stage of Q4, Q4 collector therefore and saturation conduction, LCD-also fully conducting over the ground, the power supply of introducing LCD+ just can drive display screen normally to move.

The AT89S52 single-chip microcomputer 8 of this device is core parts, and the arrangement of each I/O mouth is: P0.0～P0.5, for keyboard Y-direction, respectively organize reading in of state, and P0.6 arranges reading in of serial data after the parallel/serial conversion of switch for device number; P1.0～P1.7 transmits for the data of display screen; P2.0～P2.2 is for keyboard directions X scanning output; P2.3～P2.5 is respectively used to display screen RW (writing), DI(and reads) and E(enable) control, P2.6 controls for the direction of RS485 interface; P3.0～P3.1 is for RS485 two-wire, and P3.3 controls for the P/S of parallel/serial conversion element, and P3.6 sends for the clock of parallel/serial conversion element, and P3.4 is for display screen CS1 and CS2 switching controls, and P3.5 is for the driving of hummer.

For strengthening the effective feeling of button actions, this device has been equipped with hummer 11, and through the cooperation of software, when any button is effectively pressed, hummer all can send loud " ticking " sound, brings sensorial smooth and easy to operating personnel.Because the I/O mouth driving force of single-chip microcomputer is limited, with the ring of motionless hummer, so will add, join driving circuit 10 before hummer.Fig. 5 is the circuit diagram of hummer 11 and driving circuit in Fig. 1.Hummer 11 in Fig. 1 is driven by a NPN type triode.When base stage controls current potential and be " 0 " (electronegative potential), the base stage no current of triode, therefore collector ends, and hummer passes through not sounding because of no current.When base stage controls current potential and be " 1 " (noble potential), the base current of the resistance R of flowing through 5 be enough to make collector saturation voltage with, hummer is because of the abundant conducting sounding of electric current.Control the ON time of base current, just can control the ringing time of hummer.If control again the different frequency combination of base current conducting, just can make the dull buzzer sound change of tune obtain rich and varied.This device, when cutting off display screen power supply, can go out specific driving frequency by combination of software, make hummer send similar cicada sound, remind operating personnel, this display screen extinguishes and belongs to normal close screen rather than equipment failure.

RS485/232 communication port 9 can be selected arbitrarily by 485 modes and communicate by letter or 232 modes are communicated by letter.Selected certain communication mode, just plug corresponding element, and the counter element of another communication mode is let alone vacancy.

In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims

1.Yi Zhong refuelling station operation recording device of transit, comprises and it is characterized in that the liquid crystal display of single-chip microcomputer, keyboard and demonstration input message: on described single-chip microcomputer, be also connected with scale-of-two manual equipment number switch and RS485/232 communication port are set; Described scale-of-two manual equipment number arranges and between switch and described single-chip microcomputer, is provided with the parallel/serial converter of data.

2. refuelling station according to claim 1 operation recording device of transit, is characterized in that: also comprise hummer, on described hummer, dispose driving circuit, described driving circuit is connected to single-chip microcomputer.

3. refuelling station according to claim 1 operation recording device of transit, is characterized in that: described single-chip microcomputer is AT89S52 single-chip microcomputer.

4. refuelling station according to claim 1 operation recording device of transit, is characterized in that: described liquid crystal display is HD61202 dot matrix lcd.

5. refuelling station according to claim 1 operation recording device of transit, is characterized in that: the outer setting of described keyboard has sealing film structure.

6. refuelling station according to claim 1 operation recording device of transit, is characterized in that: the parallel/serial converter of described data is the parallel/serial converter of CD4014.

7. refuelling station according to claim 1 operation recording device of transit, is characterized in that: described keyboard is matrix keyboard, is provided with the 74HC138 code translator that has adopted TTL circuit on described keyboard.

8. refuelling station according to claim 1 operation recording device of transit, is characterized in that: in described liquid crystal display, be provided with display power supply switch, described display power supply switch is connected to single-chip microcomputer.

9. according to the refuelling station's operation recording device of transit described in claim 1 or 4, it is characterized in that: the left screen control signal CS1 transmission line of described liquid crystal display and right screen are controlled model CS2 transmission line and used same I/O line to be connected to single-chip microcomputer, and wherein right screen is controlled on model CS2 transmission line and is also provided with phase inverter.