CN2434729Y - Information button multin-point read-in device - Google Patents

Abstract

The utility model relates to a multi-point read-in device with information buttons, which is a device using a plurality of i Button < TM > information buttons and simultaneously reading information to take a record about the information and mark and manage by real time. A single-chip computer is used as the center of a management record unit and the output terminals of a display, an address decoder, a memorizer, a keyboard, a parallel output interface and a level converting circuit are respectively connected with the input terminal of the single-chip computer. In a read-in unit, the input terminal of a level translator in the read-in unit of the information buttons is connected with the read-in single-chip computer and the output terminal is connected with the level converting circuit in the management record unit.

Description

Information button multiple spot reads in device

The utility model belongs to data recording equipment, a kind ofly utilizes many iButton ^TMThe device that the information button reads in information simultaneously and these information are write down, carry out mark and management with real-time time.

IButton ^TMButton is that U.S. DALLAS company discerns the IC product automatically, it adopts contact memory technology, it is 17.25mm that its memory chip is encapsulated in diameter, thickness is in the stainless steel casing of 5.89mm, each information button is buckled and is carved with unique number of registration, mode is read and write, canned data with unibus (signal wire, a ground wire).Compare iButton with IC-card, magnetic card ^TMInformation button read-write is simple, and the reliability height is preferablyly being worked under abominable situation, and use face is more extensive.Existing information button reads in device only has any to read in, and when as systems such as gate inhibition or work attendances, when many people need use simultaneously, because shared one read in device, often a lot of people were read in wait, and speed is passed through in influence significantly.

Goal of the invention of the present utility model provide a kind of simple in structure, cost is low, highly versatile, can read in a plurality of iButton simultaneously ^TMThe information button multiple spot of information button information reads in device.

Information button multiple spot of the present utility model reads in device and reads in the unit level translator, reads in the unit that reads in that single-chip microcomputer forms and formed by display, address decoder, memory, keyboard, single-chip microcomputer, parallel output interface, management accounts unit level shifting circuit, the management accounts unit of forming with by the information button, the management accounts unit is the center with the single-chip microcomputer, and the output terminal of display, address decoder, memory, keyboard, parallel output interface, level shifting circuit joins with the input end of single-chip microcomputer respectively; Read in the unit, the input termination that the information button reads in the unit level translator is read in single-chip microcomputer, and output terminal and management accounts unit level shifting circuit join.Single-chip microcomputer promptly " P2.6, P2.7 ,/WR " end of " AT89C55 " as the decoding input information of GAL16V8 system address code translator, be connected to 2 pin, 3 pin, 4 pin of GAL16V8 respectively, keyswitch S1, S2, S3 and S4 are connected to AT89C55 respectively " " P1.6, P1.7, P3.4 " and P3.5 end.Its outside growth data storer is made up of HK1245 non-volatile RAM circuit.The address wire A14 of HK1245 non-volatile RAM, A15, A16 connect AT89C55 single-chip microcomputer " P1.0, P1.1, P1.2 " end respectively, and its chip selection signal/CE is connected in 17 pin of system address code translator GAL16V8.DMF5001 lattice lcd display chip selection signal/CE is by the 18 foot control systems of system address code translator GAL16V8, and control register and digital register select signal C/D to be connected in system address A0.Serial real time clock circuit IC8 is that reset terminal/RES, serial clock terminal SCLK, the data I/O end I/O of X1302 controlled by AT89C55 " P1.3, P1.4, P1.5 " respectively." P3.2, P3.3 " end of 74HC244 and AT89C55 is formed the parallel output interface of expansion of this device, and wherein 74HC244 write control signal/CE links to each other with 19 pin of system address code translator GAL16V8.

Advantage of the present utility model is that this device can read in a plurality of iButton simultaneously ^TMInformation button information, shared management accounts device in rear end and real-time clock when as systems such as gate inhibition or work attendances, can many people be operated simultaneously, obviously reduce the stand-by period.This apparatus features is that hardware configuration is simple, cost is low, highly versatile, be applicable to purposes such as multiple work attendance, the gathering of dining room fast food and high-rise apartment building entrance guard management.

Fig. 1 is a structured flowchart of the present utility model.Read in unit level translator 8, read in single-chip microcomputer 9 comprising display 1, address decoder 2, memory 3, keyboard 4, single-chip microcomputer 5, parallel output interface 6, management accounts unit level shifting circuit 7, information button.

Fig. 2 is an electrical schematic diagram of the present utility model.

The utility model is described in further detail below in conjunction with embodiment.

The utility model is with the control core of AT89C55 single-chip microcomputer as this device, and the P87LPC762 single-chip microcomputer is as iButton ^TMThe information button read in front end component, read in each iButton ^TMThe information of information button, the mark of recording of information, real-time time and management are then realized relevant information by each P87LPC762 single-chip microcomputer after RS232 serial communication circuit is sent to the AT89C55 single-chip microcomputer, the AT89C55 single-chip microcomputer can connect a plurality of by reading in a little that the P87LPC762 single-chip microcomputer is formed by RS232 serial communication circuit, thereby realizes iBut-ton ^TMThe purpose that information button multiple spot reads in simultaneously.

Below in conjunction with accompanying drawing the 26S Proteasome Structure and Function that information button multiple spot reads in device is illustrated.Fig. 2 is this manipulated or operated apparatus.IC1 is the AT89C55 single-chip microcomputer among Fig. 2, IC2 is the DMF5001 lattice lcd display, IC3 is the 74HC244 three-state buffer, IC4 is the HK1245 non-volatile RAM, IC5 is the 74HC373 buffer latch, and IC6 is a MAX232 serial communication RS232 level translator, and IC7 is a GAL16V8 system address code translator, IC8 is an X1302 serial real-time clock, and S1-S4 is four keyswitches.Above IC1-IC8 and S1-S4 form management accounts of the present utility model unit.IC10 among Fig. 2, IC11 ..., IC1N is the P87LPC762 single-chip microcomputer, IC20, IC21 ..., IC2N is MAX232 serial communication RS232 level translator, they form the unit that reads in of iButtonTM information button of the present utility model, above N value is 7 to the maximum, promptly can allow at most 8 information buttons are read in simultaneously.

Information button multiple spot reads in the management record cell.The AT89C55 single-chip microcomputer is a control core of the present utility model, and E2PROM is as program storage for its 20K byte, deposits the application program of this device, and AT89C55 and IC5 provide data bus D0-D7, the address bus A0-A15 of this device jointly.The bidirectional data line D0-D7 of DMF5001 lattice lcd display, read-write line/RD ,/the data bus P0.0-P0.7 of WR and AT89C55 with read and write line/RD ,/WR links to each other, its chip selection signal is by 18 pin/Y1 control of IC7, control register and digital register select signal C/D to be connected in system address line A0, so DMF5001 lattice lcd display control register and digital register address are respectively 4001H, 40000H.The non-volatile RA of HK1245 is then a kind of not to lose SRAM from charged pool, power down data, and its memory capacity is identical with SRAM628128, has expanded 128K byte external data memory with HK1245 for this device; The address wire of IC4 is A0-A16, the A0-A7 of A0-A13 welding system wherein, P2.0-P2.5, A14, AiButton5, A16 is respectively by the P1.0 of AT89C55P1 mouth, P1.1, P1.2 control, chip selection signal/CE is produced by 18 pin/Y0 of IC7, this shows that IC4 adopts the topped technology in address, only take the 0000H-3FFFH of system external RAM address, and by P1.0, P1.1, the physical memory space of P1.2 different conditions decision in the HK1245 non-volatile RAM, P1.0 for example, P1.1, P1.2 is at 0 o'clock, choosing the address among the HK1245 is 00000H-03FFFH, and P1.0, P1.1, P1.2 is at 1 o'clock, choosing the address among the HK1245 is 1C000H-1FFFFH, and their addresses in system are 0000H-3FFFH.External 32768Hz crystal oscillator of X1302 serial real-time clock and 3.6VNi battery, its reset terminal/RES, serial clock terminal SCLK, data I/O end I/O be respectively by P1.3, the P1.4 of AT89C55P1 mouth, P1.5 control, and realize the resetting of this serial real-time clock, to the time and real-time time operation such as read.IC374HC244 three-state buffer, P3.2, P3.3 form the parallel output interface of expansion of this device and are connected in the J1 socket, J1 is used for carrying out parallel communication with other external unit, wherein 74HC244 is by 19 pin/Y2 control of IC7, and the distribution address is 8000H, the P3.2 of AT89C55P1 mouth is as the gating signal STB of this parallel output interface, and P3.3 is as the status signal BUSY of parallel output interface.System address code translator IC7 is realized by programmable logic device (PLD) GAL16V8, three input ends, 2,3,4 pin that it only uses connect respectively AT89C55 P3.6, P3.7 and/WR, its three decoding output terminal/Y0 ,/Y1 ,/Y2 address respectively corresponding 00000H-03FFFFH, 4000H-4001H, 8000H.

Information button multiple spot reads in that device reads in and control module.Its circuit is made up of 8 pairs of P87LPC762 single-chip microcomputers and MAX232 serial communication RS232 level translator at most, and reads in each iButton with the P87LPC762 single-chip microcomputer ^TMThe information of information button is specifically read in circuit and is seen Fig. 1, iButton ^TMThe P1.0 of the data termination P87LPC762 single-chip microcomputer of information button, iButtonTM information button signal ground connects P87LPC762 single-chip microcomputer signal ground, passes through the mutual exchange message of single bus communication protocol between them, at each iButton ^TMWhen the information button read in operation, the solenoid valve that the driving of duty cue lamp and gate inhibition control usefulness and the driving of motor etc. can be realized by P87LPC762 single-chip microcomputer P1 mouth remaining port.Each P87LPC762 single-chip microcomputer is only finished each iButton ^TMInformation button information is read in and the front-end control operation, and the mark of recording of information, real-time time and management are by by each P87LPC762 single-chip microcomputer relevant information being realized after RS232 serial communication circuit is sent to the AT89C55 single-chip microcomputer.The serial interface receiving end RXD of each P87LPC762 single-chip microcomputer and serial transmitting terminal TXD all will convert the RS232 fiduciary level to through MAX232 serial communication RS232 level translator among Fig. 2, thereby RS232 serial communication extended distance to 15 meter, and can in a big way, layout respectively read in a little, and by the AT89C55 chip microcontroller to respectively reading in the reliable of device and effectively management.

The typical case uses as follows:

Work attendance management system.Walkway on the doorway, workshop of the large-scale assembling line of factory is installed this device, can place several reading in a little in some meters scopes, the hand-held iButton separately of the plant personnel of coming in and going out when on and off duty ^TMInformation button, magnetic touch and read in a little, and the P87LPC762 single-chip microcomputer detects this iButton ^TMWhether the information button in this workshop management scope, and it is bright to read in when correct green light, waits for that red light is bright when reading in; The P87LPC762 single-chip microcomputer transmits this iButton simultaneously ^TMThe sequence number ID of information button is to the AT89C55 single-chip microcomputer, and AT89C55 is recorded in the respective storage areas of HK1245 to this information, and according to the X1302 current time for this reason information add time mark.Obviously reading in of placing is a little many more, then fast more by the time.The management accounts unit can be placed on managerial personnel place, and managerial personnel can understand on-the-spot dynamic data from liquid crystal display, for example work attendance total number of persons etc.Can inquire about and show recorded information by button, lattice lcd screen.Can insert printer through parallel output interface, print the work attendance statistics data of every day, week, the moon.In addition through parallel output interface, can link to each other with the parallel interface of PC, under software control, can also access and show work attendance personnel photo in real time, make the work attendance process place under the supervision by the public dawn more, stop indivedual non-alternative work attendance phenomenons that hold in person.

The utility model is equally applicable to purposes such as dining room fast food gathering and high-rise apartment building entrance guard management according to above method.

Claims (6)

1. an information button multiple spot reads in device, it is characterized in that this reads in device by display (1), address decoder (2), memory (3), keyboard (4), single-chip microcomputer (5), parallel output interface (6), management accounts unit level shifting circuit (7), the management accounts unit of forming and read in unit level translator (8) by the information button, the unit that reads in that reads in single-chip microcomputer (9) composition is formed, the management accounts unit is the center with single-chip microcomputer (5), display (1), address decoder (2), memory (3), keyboard (4), parallel output interface (6), the output terminal of level shifting circuit (7) joins with the input end of single-chip microcomputer (5) respectively; Read in the unit, the input termination that the information button reads in unit level translator (8) is read in single-chip microcomputer (9), and output terminal and management accounts unit level shifting circuit (7) join.

2. information button multiple spot according to claim 1 reads in device, it is characterized in that single-chip microcomputer (5) promptly " P2.6, P2.7 ,/WR " end of " AT89C55 " as the decoding input information of GAL16V8 system address code translator (2), be connected to 2 pin, 3 pin, 4 pin of GAL16V8 respectively, keyswitch S1, S2, S3 and S4 are connected to AT89C55 respectively " " P1.6, P1.7, P3.4 " and P3.5 end.

3. information button multiple spot according to claim 1 and 2 reads in device, it is characterized in that its outside growth data storer (3) is made up of HK1245 non-volatile RAM circuit.The address wire A14 of HK1245 non-volatile RAM, A15, A16 connect AT89C55 single-chip microcomputer " P1.0, P1.1, P1.2 " end respectively, and its chip selection signal/CE is connected in 17 pin of system address code translator GAL16V8.

4. information button multiple spot according to claim 1 and 2 reads in device, it is characterized in that the 18 foot control systems of DMF5001 lattice lcd display (1) chip selection signal/CE by system address code translator GAL16V8, control register and digital register select signal C/D to be connected in system address A0.

5. read in device by claim 1 or 2 described a kind of information button multiple spots, it is characterized in that serial real time clock circuit IC8 is that reset terminal/RES, serial clock terminal SCLK, the data I/O end I/O of X1302 is respectively by " P1.3, P1.4, P1.5 " control of AT89C55.

6. information button multiple spot according to claim 1 reads in device, it is characterized in that the parallel output interface of expansion of this device of " P3.2, P3.3 " end composition of 74HC244 and AT89C55, wherein 74HC244 write control signal/CE links to each other with 19 pin of system address code translator GAL16V8.

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